NOK CORPORATION Patent applications |
Patent application number | Title | Published |
20160084303 | CENTER BEARING SUPPORT - In a center bearing support, a plurality of bored portions corresponding to spaces passing through a rubber-like elastic body in an axial direction are provided around a shaft hole. The bored portions are constructed by a combination of inner peripheral side bored portions arranged comparatively near the shaft hole, and outer peripheral side bored portions arranged comparatively far from the shaft hole. The inner peripheral side bored portions and the outer peripheral side bored portions are alternately provided circumferentially, and are provided so as to overlap in a part circumferentially, thereby having connection portions constructed by a part of the rubber-like elastic body between the inner peripheral side bored portions and the outer peripheral side bored portions. The connection portions are extended in a direction which is inclined to both of a circumferential direction and an axially perpendicular direction as seen from one side of the axial direction. | 03-24-2016 |
20160003357 | SEALING DEVICE - The invention provides a sealing device having a sliding lip and a labyrinth lip, wherein the sealing device can inhibit the lip from being deformed as the lip even if the labyrinth lip is exposed to the foreign material in the machine outside and is swollen, thereby making the sliding lip protecting function hard to be lost. In order to achieve the object, in a sealing device having a sliding lip which seals so as to prevent foreign material in a machine outside from entering into a machine inside, and a labyrinth lip which makes the foreign material hard to reach the sliding lip, a notch portion for absorbing swelling of the labyrinth lip when the labyrinth lip is exposed to the foreign material and is swollen is provided in a leading end portion of the labyrinth lip. | 01-07-2016 |
20150369188 | SEALING STRUCTURE - A sealing device exhibits a sealing function even when it is in a state in which squeeze of a seal ring is reduced and in a low-temperature condition. A sealing structure is provided with a cylinder head ( | 12-24-2015 |
20150362074 | SEALING DEVICE - Provided is a sealing device that is capable of exhibiting a sealing function even in a condition in which a fluid pressure is low while suppressing its sliding torque. A sealing device | 12-17-2015 |
20150353720 | FLUORORUBBER COMPOSITION - A fluororubber composition comprising 100 parts by weight of a peroxide-crosslinkable tetrafluoroethylene-vinylidene fluoride-hexafluoropropene ternary copolymer rubber having a fluorine content of 64 wt. % or more, (A) 5 to 90 parts by weight of carbon black having a specific surface area of 5 to 20 m | 12-10-2015 |
20150343676 | METHOD FOR MANUFACTURING CARBON PLATE-INTEGRATED GASKET - The purpose of the present invention is to provide a method for manufacturing a carbon plate-integrated gasket with which, when forming a carbon plate-integrated gasket using a cure-in-place gasket (CIPG), gaskets with a selected lip shape can be obtained with good precision without damage to the carbon plate and with good material yield while maintaining favorable material properties. For this purpose, in the method for manufacturing a carbon plate-integrated gasket having a lip-shaped section in which an uncured liquid rubber is applied on the surface of a carbon plate to produce an uncured seal protrusion and the seal protrusion is then compressed and cured between a forming mold and the carbon plate, a burr-collecting section for discharging excess seal protrusion rubber from the gasket-forming space is configured between the forming mold and the carbon plate so as to communicate with said forming space via a rubber-squeezing section. | 12-03-2015 |
20150337893 | DUST COVER FOR BALL JOINT - An object of the invention is to provide a dust cover for a ball joint which can suppress generation of a so-called mouth opening phenomenon in a small-diameter opening portion even under a low-temperature atmosphere, can effectively inhibit a seal performance from being lowered in the small-diameter opening portion and inhibit the sedimentation or the garbage from entering into a dust cover from an external portion, and has a good sealing performance. For this purpose, in a dust cover for a ball joint having a spherical head portion, a shaft, one end large-diameter opening portion, the other end small-diameter portion, and a film portion, concavo-concave engagement is formed between an inner peripheral surface of the rigid ring and an outer peripheral surface of a retainer having a cylindrical portion which is fitted and retained to an outer peripheral surface of the shaft. | 11-26-2015 |
20150316151 | SEALING DEVICE - To provide a scheme that, when making a prediction in multilayer coding, takes into account the quality of the image in each layer and can adaptively determine in want manner to refer to the image of which layer. Provided is an image processing device provided with a prediction control unit that, on the basis of an indicator dependent on the image quality of a first layer image and a second layer image, sets the weighting when including a first layer pixel and a second layer pixel for predicting a pixel in the second layer that is encoded or decoded referring to the first layer. | 11-05-2015 |
20150285380 | OIL SEAL - A slinger of an oil seal has a thread groove carrying out a pumping action toward a diametrically outer side in an external side end surface of a flange portion. A lip seal member has a main lip, a rubber-like elastic dust lip and a rubber-like elastic intermediate lip. The intermediate lip directs a lip end to a machine inner side, comes into close contact with the slinger over a whole periphery with the lip end, and has annular first projections and circumferentially partial second projections in a facing portion to the slinger. The first projection has a structure which makes dust hard to pass through to the lip end by forming a micro gap in relation to the slinger. The second projection has a structure which properly keeps the micro gap under generation of eccentricity in a rotary shaft by having a higher portion than the first projection. | 10-08-2015 |
20150274989 | Metal Surface Processing Agent - An object is to provide a metal surface treatment agent which can be coated by screen printing, and can be effectively used for metal surface treatment at the time of forming a rubber-metal complex excellent in water resistance and heat resistance, and the object can be solved by a metal surface treatment agent which comprises an organometallic compound, silica, magnesium silicate hydrate, and an organic solvent represented by the following general formula (I): | 10-01-2015 |
20150260290 | SEALING DEVICE - In a sealing device sealing between relatively moving two members by being installed to an installation groove in one member and coming into close contact with the other member and a side wall of the installation groove, the sealing device has a seal ring including a diametrical portion in an end portion of a tubular portion, and coming into close contact with a side wall of the installation groove by an end surface of the diametrical portion and the other member by an outer peripheral surface of the tubular portion, a rigid support ring including positions respectively coming into contact with an inner peripheral surface of the tubular portion and the axially other end surface of the diametrical portion, and a spring means pressing the support ring and the seal ring. The support ring serves to support the tubular portion of the seal ring from an inner peripheral side thereof. | 09-17-2015 |
20150252181 | COATING AGENT COMPOSITION - Disclosed is a coating agent composition comprising (A) a polytetrafluoroethylene resin emulsion, (B) an urethane resin emulsion, and (C) a hydrogenated NBR emulsion, and preferably further comprising (D) an acrylic resin emulsion and/or an ethylene-vinyl acetate copolymer resin emulsion. When this coating agent composition is used as a surface coating agent for general vulcanized rubber-molded products, evaluation of adhesion to rubber by an adhesion test is hardly impaired, and bleeding evaluation, evaluation of the flexibility of the coating agent by a bending test, and evaluation of the reduction in adhesion to rubber due to bloom from the rubber by a high-temperature and high-humidity test are all satisfied. | 09-10-2015 |
20150233331 | SEALING DEVICE - A sealing device ( | 08-20-2015 |
20150217417 | EXPLOSION-PROOF VALVE AND MANUFACTURING METHOD THEREFOR - An explosion-proof valve installed to a hole portion of a pressure vessel and valve opening when the pressure within the pressure vessel goes beyond a predetermined value so as to release the pressure integrally has a tubular portion inserted to the hole portion, an outside flange portion provided in one end portion of the tubular portion and engaging with an opening peripheral edge portion outside the vessel in the hole portion, a locking projection provided in the other end portion of the tubular portion and engaging with an opening peripheral edge portion in side the vessel in the hole portion, and a membrane portion provided in an inner peripheral side of the tubular portion and rupturing due to the pressure at the valve opening time, and has such a shape that an outer diameter of the outside flange portion is made smaller than an outer diameter of the locking projection. | 08-06-2015 |
20150211637 | SEAL STRUCTURE USING METAL GASKET - A seal structure has one metal gasket arranged between a pair of casings. The metal gasket is provided with a planate outer peripheral portion and a bead portion which is formed by rising up from an inner peripheral end portion of the outer peripheral portion, and is arranged so that the bead portion comes into contact with the one casing, and the outer peripheral portion comes into contact with the other casing. The bead portion elastically deforms so as to reduce its height and the outer peripheral portion elastically deforms on the basis of the elastic deformation of the bead portion, when the metal gasket is pinched by the pair of casings, and a leading end of the outer peripheral portion comes into contact with one casing at this time, whereby any gap in which salt water stays is not formed between one casing and the metal gasket. | 07-30-2015 |
20150197619 | FLUORORUBBER COMPOSITION - A fluororubber composition comprising 1 to 100 parts by weight of a needle-like filler or fibrous filler having an average particle diameter of 5 μm or less, an average particle length of 40 to 60 μm, and an aspect ratio of 10 to 12, based on 100 parts by weight of fluororubber. A fluororubber vulcanization-molded product obtained from the fluororubber composition has resistance against deformation due to the shape effect of the filler, and thereby can suppress the deformation of the oil seal sliding surface towards the sliding direction. More specifically, the fluororubber vulcanization-molded product can achieve less friction, while maintaining sealing properties by increasing the amount of oil pumping, from the initial use of an oil seal to after the abrasion of the oil seal. | 07-16-2015 |
20150184749 | FLUORORESIN SEAL RING - A PTFE resin seal ring in which at least one surface of an abutting part that forms a discontinuous part of the seal ring is treated by plasma modification using non-polymerizable gas under pressure conditions of 10 to 500 Pa during plasma irradiation. Since the abutting surfaces of the PTFE resin seal ring are treated with low-pressure plasma, and the state of CF bonds in the surface portion is changed, sticking does not occur in the abutting part even after constant load is applied at a high temperature. Thus, the PTFE resin seal ring of the present invention exhibits excellent effects of ensuring sealing properties under pressure and slidability under ordinary pressure, and is effectively used as a sealing material in, for example, rotation or reciprocation, including hydraulic circuits such as automatic transmissions (A/T) and continuously variable transmissions (CVT) for vehicles. | 07-02-2015 |
20150176639 | DUST COVER FOR BALL JOINT - In a dust cover for a ball joint structured such that a spherical head portion formed in one end of a ball stud is retained within a socket, a shaft in the other end of the ball stud is fastened and fixed to a knuckle, a one end large-diameter opening portion formed approximately as a C-shaped form in its sectional is fixed and retained within an annular groove portion which is formed in an outer peripheral surface of the socket so as to be comparted by a collar portion, by double wound circlips, and the other end small-diameter opening portion is retained to the shaft, and made of an elastic material, a small-diameter step portion is provided in a bottom portion of the collar portion side of an annular accommodating groove in which the double wound circlips of the large-diameter opening portion is accommodated. | 06-25-2015 |
20150175774 | NBR COMPOSITION - An object is to provide an NBR composition excellent in cold resistance and heat resistance, which can be used with a wide range of temperatures, and an NBR composition excellent in oil resistance without substantially degrading compression set characteristics, and the object can be solved by an NBR composition comprising an NBR polymer, silica, an ether ester series plasticizer and a cross-linking agent, which comprises 100 parts by weight of the NBR polymer where an acrylonitrile content of the NBR polymer is within the range of 20 to 40%, 10 to 150 parts by weight of silica a primary particle size of which is within the range of 50 nm or bigger, and 3 to 20 parts by weight of an ether ester plasticizer a weight average molecular weight MW of which is 500 or more. | 06-25-2015 |
20150123351 | BUFFER RING - A buffer ring includes an annular body portion | 05-07-2015 |
20150061233 | RECIPROCATING SEALING DEVICE - In a reciprocating sealing device sealing two members by mounting a packing to a mounting groove in one of two relatively reciprocating members, and bringing the packing into contact with the other member, the packing is provided with an annular base part, a stationary side lip, and a sliding side lip. A back ring having a lower hardness than the packing is interposed between the annular base part and a groove side surface of the mounting groove. The back ring forms a space region in relation to the other member. The annular base part is provided with a shape that the annular base part does not protrude out of an extension of a peripheral surface of the sliding side lip in a free state by forming a cross sectional shape of a heel part into a circular arc shape or a taper shape. | 03-05-2015 |
20150048574 | SEALING DEVICE AND SEALING STRUCTURE - The sealing device includes: an outer peripheral ring | 02-19-2015 |
20150017453 | RUBBER LAMINATED RESIN COMPOSITE - Provided is a rubber laminated resin composite comprising a polyamide-based resin molded product and rubber that is vulcanization bonded to the polyamide-based resin molded product; the polyamide-based resin molded product being molded from a polyamide-based resin that is blended with 0 to 70 wt. % of a filler based on the total amount of the filler and the polyamide-based resin, and that comprises an aliphatic amine compound having an amine equivalent of 950 or less in an amount of 0.045 mmol or more, preferably 0.050 to 2.0 mmol, more preferably 0.065 to 1.5 mmol, per g of the polyamide-based resin. The rubber laminated resin composite is produced by molding a polyamide-based resin that is blended or not blended with a filler, after the addition of an aliphatic amine compound thereto, and then vulcanization bonding of fluororubber or acrylic rubber to the obtained polyamide-based resin molded product. | 01-15-2015 |
20150008648 | SEALING DEVICE - In a sealing device installed to an installation groove which is provided in an outer peripheral surface of one member among two members relatively moving, and sealing between the two members by coming into close contact with the other member which is positioned in an outer peripheral side of the installation groove and one side wall of the installation groove, the sealing device has a seal ring, a support ring having a pressing surface which comes into contact with an inner peripheral corner portion the seal ring, and a spring means which presses the support ring and the seal ring. A collapsing margin in relation to the taper surface shaped pressing surface in the support ring is normally set in an inner peripheral corner portion in the seal ring. According to the sealing device, it is possible to improve pressure resistance and sealing performance. | 01-08-2015 |
20140346106 | METAL SUBSTRATE GASKET WITH FILTER FUNCTION AND MANUFACTURING METHOD THEREFOR - Provided is a metal substrate gasket with a filter function that is easy to machine/assemble and is capable of reducing the number of parts as well as cost. To achieve said purpose, the metal substrate gasket with filter function, which is provided with a filter section in which holes have been drilled on a portion of the flat surface of the metal substrate and is provided with a sealing section around the filter section, is characterized in that in the sealing section, respective elastic rubber seals cover the two surfaces of the metal substrate in the thickness direction. The metal substrate gasket is also characterized in that a sealing bead section is formed in the metal substrate in the sealing section. | 11-27-2014 |
20140339775 | ENGINE REAR SEAL - In an engine rear seal installed to an engine rear portion having an end plate arranged in a motor exterior side of a housing, and a flywheel arranged in a motor exterior side of the end plate, the engine rear seal has an oil seal and a muddy water preventing seal. The muddy water preventing seal integrally has an attaching portion, and a seal lip directed to a diametrically outer side from the attaching portion and slidably coming into close contact with an end surface in the motor exterior side of the end plate. The seal lip has an inclined lip end back surface portion, and is structured such that a lip end comes into contact with the end surface at the low-speed rotating time and the lip end moves away from the end plate on the basis of an action of a centrifugal force at the high-speed rotating time. | 11-20-2014 |
20140301761 | MULTILAYER METAL MEMBER FOR IMAGE FIXATION - The invention provides a multilayer metal member for image fixation which does not readily undergo breakage due to bending stress during use thereof and which has improved durability. The multilayer metal member includes a metal substrate formed of at least three laminated metal layers, and a fluororesin layer disposed on the metal substrate, wherein the metal substrate has a first layer which is an electrocast seamless belt formed of nickel or a nickel alloy, a second layer which is an electrocast seamless belt formed of a metal having a Young's modulus smaller than that of the first layer, and a third layer formed of a metal having a corrosion resistance higher than that of the second layer; and the ratio (y) of the thickness of the third layer to that of the first layer satisfies the following formula: | 10-09-2014 |
20140291940 | GASKET - A gasket made of a rubber-like elastic material is mounted in a mounting groove provided in one of two opposing members and is gripped between the one member and the other member so as to be in pressure contact with the two members. The gasket includes: a body section inserted in the mounting groove; one support protrusion provided on one side of the body section so as to be located on the side of the body section, and mounted in a deep groove provided on the bottom; the other support protrusion extending in a tilted manner from the other end side, in the width direction, of the body section toward the bottom in the direction away from the one support protrusion; and a lip ridge protrusion provided on the side of the body section, and located so that the tip thereof does not overlap the one support protrusion. | 10-02-2014 |
20140284885 | DUST COVER FOR BALL JOINT - An elastic dust cover for a ball joint is structured such that a spherical head portion formed in one end of a ball stud is retained within a socket, a shaft in the other end of the ball stud is fastened and fixed to a knuckle, a one end large-diameter opening portion is fixed and retained to an outer peripheral surface of the socket, and the other end small-diameter opening portion is retained to the shaft. An annular step portion is formed in an inner peripheral side end portion coming into contact with the dust cover in the knuckle, a part of the small-diameter opening portion is inserted into a space formed by the annular step portion and an outer peripheral surface of the shaft, and an outer peripheral surface of the small-diameter opening portion is constrained by an inner peripheral surface of the annular step portion. | 09-25-2014 |
20140252722 | SEAL STRUCTURE - In order to prevent gaps from occurring in corner sections in a section where three surfaces are joined together, comprising the combination of a housing, grommet and cover, or the like, thereby improve sealing, a seal structure, which is provided with a housing in which a notch-shaped grommet-mounting section is disposed, a grommet, a cover and a metal substrate gasket, is provided, wherein the grommet is provided with a seal projection, and the seal projection forms a protruding section due to a portion of the seal projection protruding toward the metal substrate gasket when the seal projection makes intimate contact with the inner surface of the grommet-mounting section. The metal substrate gasket is provided with two seal lines and a groove-shaped recess between the seal lines. When nipped, the protruding section of the seal projection is tightly compressed inside the groove-shaped recess in the metal substrate gasket. | 09-11-2014 |
20140220472 | COMPONENT FOR CONSTITUTING FUEL CELL - A component for constituting a fuel cell having a gasket molded integrally with an MEA in which molding of the gasket is required once, the MEA requires no through hole and requires a small fastening force when the MEA is compressed. The component comprises the MEA arranged between a pair of separators and compressed when a cell is assembled; a rubber impregnated portion formed by impregnating the outer peripheral portion of the MEA with a gasket molding material, i.e. a part of rubber; a flat gasket portion composed of the rubber molded integrally on the outer circumferential side of the rubber impregnated portion; a lip formed on the flat gasket portion; and a recess as a clearance when the lip is compressed. The portion impregnated with rubber and the flat gasket portion has a thickness (d | 08-07-2014 |
20140203523 | SEAL STRUCTURE USING METAL GASKET - A seal structure has a metal gasket arranged between a pair of casings. The metal gasket is provided with a bead portion in an inner peripheral side of a planate outer peripheral portion, and a bent portion in an outer peripheral side. When the metal gasket is pinched by a pair of casings, the bead portion elastically deforms so as to reduce its height and the outer peripheral portion elastically deforms on the basis of the elastic deformation of the bead portion, and comes into contact its outer peripheral end portion with one casing, whereby any gap in which salt water stays is not formed between one casing and the outer peripheral portion, and the bent portion comes into contact with the other casing, whereby any gap in which the salt water stays is not formed between the other casing and the outer peripheral portion. | 07-24-2014 |
20140197605 | PLATE-INTEGRATED GASKET - The invention provides a plate-integrated gasket which can reduce a width necessary for installing seal members provided in a plurality of plates which are laminated on each other, and can achieve an improvement of productivity. In order to achieve this purpose, in the plate-integrated gasket, one plate and the other plate are laminated on each other, an outer peripheral surface of the one plate is fitted or loosely fitted to a stepped surface which is formed in the other plate, and a seal member made of an elastic material having a rubber-like elasticity is integrally formed astride both of the one plate and the other plate, and has a fixed portion filled in a seal fixing groove which is formed between the one plate and the other plate. | 07-17-2014 |
20140175759 | GASKET AND SEALING STRUCTURE - A gasket made of a rubber-like elastic body attached to an attaching groove provided in at least one out of two members to seal a gap between the two members includes a first sealing surface coming into surface contact with a surface of a first member. A second sealing surface comes into surface contact with a surface of a second member. A third sealing surface comes into surface contact with a side surface of the attaching groove, and a pressure receiving groove opened to a side receiving sealing fluid pressure which is on an opposite side of the third sealing surface and provided so as to be parallel to the first sealing surface and the second sealing surface. | 06-26-2014 |
20140163153 | FLUORORUBBER COMPOSITION - Provided is a fluororubber composition which does not deteriorate workability during roll kneading, does not cause foaming during crosslinking and molding, and is capable of giving a crosslinked molded article which exhibits desired hardness and sealing property without using a reinforcing inorganic filler such as carbon black and silica. The fluororubber composition includes, relative to 100 parts by weight of a vinylidene fluoride-copolymerized, fluorine-containing elastomer copolymer having a glass transition temperature and a melting point, no reinforcing inorganic filler, 5 to 100 parts by weight of a PTFE filler, 0.5 to 10 parts by weight of a polyol crosslinking agent, 1 to 15 parts by weight of magnesium oxide, and 0.1 to 2 parts by weight of hydrotalcite. Preferably, 0.1 to 10 parts by weight of a quaternary onium salt crosslinking accelerator is further included. | 06-12-2014 |
20140154497 | Gasket Material - The purpose of the present invention is to provide a gasket material that is capable of preventing corrosion caused by sulfur element, can be used as a seal part for a product that is easily damaged by corrosion, such as an electronic part, and is capable of forming a tight seal under low surface pressure with a material having low rigidity and inadequate reliability such as to have a blowhole, and that can prevent reduction in bolt axial load without producing plastic flow (setting) under pressure. The purpose is achieved by a gasket material in which a foamed rubber layer having a closed cell structure is formed, via an adhesive layer, on at least one side of a metal plate, wherein the foamed rubber layer comprises a carboxyl group-modified nitrile rubber, the expansion ratio of the foamed rubber layer is 2.0 to 3.0, and the foamed rubber layer is crosslinked with an epoxy compound. | 06-05-2014 |
20140106995 | SURFACE-TREATING AGENT FOR OIL SEAL LIP PORTION - Disclosed is a surface-treating agent for oil seal lip portion, comprising a lubricant filler and an adduct compound consisting of an adduct of toluene diisocyanate and trimethylolpropane, the surface-treating agent being applied to the surface of vulcanized rubber forming a lip portion of an oil seal comprising the lip portion and a metal ring. The application of the surface-treating agent of the present invention to the sliding surface of a seal lip portion of an oil seal effectively lengthens the service life of the oil seal, when used in a sliding part or a moving part, and leads to energy saving of equipment that uses the oil seal. | 04-17-2014 |
20140086652 | FIXATION MEMBER AND FIXATION APPARATUS HAVING THE FIXATION MEMBER - The present invention provides a fixation member which exhibits enhanced wear resistance and sliding property between the peripheral surface of the fixation member and a pressure member, which can reduce driving torque at a fixation unit, and which does not cause stick slipping even in a high-load operational mode, and a fixation apparatus having the fixation member. The fixation member employed in a fixation unit of the fixation apparatus has a metallic substrate having at least one layer of an electrocast seamless belt, and a slide layer disposed on the inner peripheral surface of the metallic substrate, wherein the slide layer is formed of at least one species of the group consisting of a polyamide-imide resin and a polyimide resin, and a fluororesin; the slide layer has a fluororesin content of 27.5 mass % to 50 mass %; and the slide layer has a surface roughness Ra of 0.4 μm or less. | 03-27-2014 |
20140077459 | VALVE STEM SEAL DEVICE - A valve stem seal device has a valve stem guide, a cylindrical metallic ring retained to an outer periphery of the valve stem guide, a rubbery elastic seal lip integrally formed in one end side of the metallic ring, and hermetically sliding to the valve stem, and a valve stem seal having the cylindrical metallic ring and the seal lip and fixed to the valve stem guide side. The valve stem seal device has a stop ring retained between a circular-truncated-cone-shaped surface which is expanded toward a side of the seal lip formed in an outer peripheral surface of the valve stem guide, and a cylindrical inner peripheral surface of the metallic ring. The stop ring has a cut part, and a movement limiting means for limiting a movement in an axial direction of the stop ring is provided in the other end side of the metallic ring. | 03-20-2014 |
20140031461 | FLUORORUBBER COMPOSITION - A fluororubber composition comprising 100 parts by weight of a peroxide-crosslinkable tetrafluoroethylene-vinylidene fluoride-hexafluoropropene ternary copolymer rubber having a fluorine content of 64 wt. % or more, (A) 5 to 90 parts by weight of carbon black having a specific surface area of 5 to 20 m | 01-30-2014 |
20140005339 | ACRYLIC RUBBER COMPOSITION | 01-02-2014 |
20140004363 | NBR Composition and Rubber-Metal Laminate | 01-02-2014 |
20130334775 | Sealing Device - An annular sealing device for a shaft and housing that can maintain sealing properties under fluid pressure load when creep occurs in a cut portion due to thermal expansion and the perimeter is shortened. The sealing device includes a seal ring unit configured to fit within an annular groove in the shaft, and has, on the side thereof where the outer periphery is located, a sliding surface on which the seal ring unit slides on the housing; and a lip portion on the inner periphery of the seal ring. The lip portion of tip is disposed on the side of the annular groove where a groove bottom thereof is located, in such a way that the tip thereof is deformable in a direction in which the tip increases the distance between the seal ring unit and the groove bottom of the annular groove when under pressure. | 12-19-2013 |
20130313781 | Seal Ring - Sandwiching of a foreign matter between a seal ring and a housing is suppressed, and abrasion of the housing and the seal ring is suppressed. The size of the diameter of a second seal portion | 11-28-2013 |
20130313739 | MEMBRANE-FORMING DOPE SOLUTION FOR CARBON MEMBRANES AND METHOD FOR PRODUCING CARBON HOLLOW FIBER MEMBRANES USING THE SAME - A membrane-forming dope solution for carbon membranes, comprising a polyphenyleneoxide polymer, ammonium nitrate, and a solvent having a boiling point of 100° C. or more and being capable of dissolving these components; the membrane-forming dope solution having a concentration of the polyphenyleneoxide polymer of 20 to 40 wt. %, and a concentration of the ammonium nitrate of 1 to 10 wt. %. The membrane-forming dope solution for carbon membranes is subjected to vacuum defoaming, and then subjected to a spinning step, thereby producing a carbon hollow fiber membrane. The use of the membrane-forming dope solution for carbon membranes can reduce yarn breakage during spinning or the formation of pinhole defects in the resulting polymer hollow fiber membranes. | 11-28-2013 |
20130287461 | FIXING PRESSURE ROLLER - The invention provides a fixing pressure roller having an elastic layer formed of a porous material produced from an emulsion, the roller having improved durability. The fixing pressure roller has a core, a rubber layer which has a thickness of 1.0 mm or less and which is provided around the core, and an elastic layer which is formed of a porous elastomer produced from an emulsion composition and which is provided around the rubber layer, the emulsion composition having a continuous phase of a liquid rubber material which forms an elastomer through curing. | 10-31-2013 |
20130287330 | CENTER BEARING SUPPORT - The invention provides a center bearing support ( | 10-31-2013 |
20130266354 | FIXING PRESSURE MEMBER AND PRODUCTION METHOD THEREFOR - The disclosed fixing pressure member has a simple structure, is produced through simplified production processes, causes no problem due to continued use thereof, and exhibits excellent durability. Also disclosed is a method for producing such. The fixing pressure member employed in a fixing unit of a fixing device includes a sliding sheet having a sliding surface which slides with respect to the inner peripheral surface of a belt of the fixing unit, and an elastic member provided inside the sliding sheet. The sliding sheet is formed of a resin fiber woven fabric, a resin fiber knitted fabric, a resin nonwoven fabric, or a resin film. The elastic member and sliding sheet are formed through integral molding such that the elastic member is bonded to at least the inner surface of the sliding sheet opposite the sliding surface. The sliding surface has thereon an embossment formed through an embossing process. | 10-10-2013 |
20130249173 | GASKET - In a gasket sealing a gap between two opposed surfaces, the gasket is constructed by a tabular main body portion, two lip-like projections which are provided in one surface of the main body portion, and extend in parallel to each other along the main body portion, two small projections which are provided in the other surface of the main body portion and extend in parallel to each other along the main body portion, through holes which are provided at a plurality of positions of the main body portion, and an annular seal portion which is provided in such a manner as to surround the through holes. Accordingly, it is possible to have a good installation property of the gasket and a good stability (seating property) after the installation, and the gasket can be compressed highly by a low reaction force, and has a high reliability. | 09-26-2013 |
20130241158 | SEAL STRUCTURE FOR FUEL CELL - A seal structure of the invention has a membrane electrode assembly provided with electrode layers in both surfaces of an electrolyte membrane, and separators sandwiching the membrane electrode assembly, plane dimensions of a pair of electrode layers are set to be equal to each other, a plane dimension of the electrolyte membrane is set to be larger than the electrode layer, and a plane dimension of the separator is set to be further larger than the electrolyte membrane. There are provided a first gasket retained to one separator and coming into close contact with the other separator, and a second gasket retained to the one separator and coming into close contact with the electrolyte membrane, and a reinforcing member separated from the electrode layer is provided for reinforcing the electrolyte membrane with which the second gasket comes into close contact, from a back surface side of the electrolyte membrane. | 09-19-2013 |
20130234398 | SEALING SYSTEM - A sealing system is provided which is intended to achieve an improvement in durability. A dust seal is composed of a first dust seal ( | 09-12-2013 |
20130228984 | GASKET AND METHOD FOR PRODUCING SAME - In order to inexpensively provide gaskets which have good sealing performance, and which fulfill various applications by simply stamping out sheet-like gaskets in accordance with specifications, a gasket is obtained by integrally forming, with a sheet-like base material, a gasket part made of a rubber-like elastic material on at least one surface of the base material, said gasket part being composed of continuous protrusions provided with a fixed pattern. The sheet-like gasket parts produced in this manner are capable of inexpensively providing gaskets which fulfill various applications by simply stamping out the sheet-like gasket parts in accordance with various specifications. | 09-05-2013 |
20130224514 | IMAGE-FIXATION MEMBER HAVING MULTI-LAYER METALLIC STRUCTURE - The present invention provides a fixation member having a multi-layer metallic structure, which member comprises a substrate employing electroformed nickel for preventing image quality failure. The fixation member of the present invention includes a metallic substrate including a first layer formed of an electroformed seamless belt made of nickel or a nickel alloy, and a second layer formed of an electroformed seamless belt made of a metal having a thermal conductivity greater than that of the first layer; an adhesion layer disposed on the surface of the second layer; and a fluororesin layer disposed by the mediation of the adhesion layer, wherein the ratio of the thickness of the second layer to the total thickness of the metallic substrate is 0.66 to 0.95. | 08-29-2013 |
20130207352 | GASKET - The invention provides a gasket which can be easily formed, can be highly compressed with a low reaction force, and is highly reliable. A gasket consisting of a rubber-like elastic material is mounted in a mounting groove formed in one of two mutually opposing members and is pinched between one member and another member so as to be in pressure-contact with both the members. The gasket has a body section inserted into the mounting groove, one support protrusion provided on the side of the body section which faces the bottom of the mounting groove, located on one end side of the body section in the width direction thereof, and in contact with the bottom, and a lip protrusion provided on the side of the body section which faces another member and having a tip located at substantially the center of the body section in the width direction thereof. | 08-15-2013 |
20130175764 | OIL SEAL - An oil seal has a first seal member including a main lip and a first dust lip, and a second seal member installed in a machine outer side of the first seal member. The second seal member integrally has an end surface covering section covering an end surface section of a housing, an outer peripheral insertion section inserted from one side in an axial direction to an outer peripheral surface of the housing and engaged with a stepped engagement section in the outer peripheral surface of the housing so as to prevent the second seal member from coming off from the housing, an inner peripheral insertion section inserted to an inner peripheral surface of the shaft hole in the housing from one side in the axial direction, and a second dust lip slidably coming into close contact with the shaft in the machine outer side of the first dust lip. | 07-11-2013 |
20130154150 | METHOD FOR PRODUCING MOLDED GASKET - In a method for producing a molded gasket having a surface treated layer on one surface of a substrate and integrally formed with a gasket body constructed by a rubber-like elastic body on the other surface, a first step of integrally molding the gasket body on the substrate, a second step of temporarily placing the molded piece on a placement stand, and a third step of removing a burr portion from a production portion by punching the molded piece are sequentially executed. For preventing foreign material attachment, pollution and scratching, the first step integrally forms a projecting leg portion constructed by a rubber-like elastic body at a position corresponding to the burr portion in the molded piece, the second step brings the molded piece into contact with the placement stand by the leg portion, and the third step removes the leg portion as a part of the burr portion. | 06-20-2013 |
20130119593 | REBOUND STOPPER - The present invention provides a rebound stopper which achieves reduction of hitting noise. | 05-16-2013 |
20130099450 | SEALING DEVICE - The present invention provides a sealing device in which frictional resistance is further reduced while a sealing property is maintained. | 04-25-2013 |
20130087978 | SEALING DEVICE - A sealing device ( | 04-11-2013 |
20130072610 | NBR Composition and Sealing Rubber Material - Providing an NBR composition substantially free of containment of an insolubilized substance-generating causative substance so as to prevent generation of an insolubilized substance due to extraction by a fuel while which composition is excellent in ozone resistance, ejectability from kneader, and which composition realizes a first compression set and a second compression set which are both 46% or less. An NBR composition including a polymer obtained by mixing an acrylonitrile-butadiene rubber (NBR) with polyvinyl chloride (PVC), wherein the NBR composition is obtained without blending an insolubilized substance-generating causative substance, or, in case of blending, by blending an insolubilized substance-generating causative substance at an upper limit of 0.15 parts by weight or less, into 100 parts by weight of the polymer having a PVC content of 15.70 to 17.50 wt %. | 03-21-2013 |
20130068921 | CENTER BEARING SUPPORT - The invention provides a center bearing support which can effectively suppress an inflow of a muddy water or the like into a center bearing side even at a time when a rotating shaft stops, without using a contact type seal such as an oil seal or the like. In a center bearing support in which an inner ring retaining a center bearing is provided in an inner periphery of an outer ring fixed to a vehicle body side via an elastic body made of a rubber-like elastic material, a rib guiding a flow of a muddy water or the like in a circumferential direction is formed on a convex surface constructed by a bellow-like bent portion of the elastic body. | 03-21-2013 |
20130065158 | GASKET - Provided is a gasket which can improve a handling property of the gasket by enhancing a rigidity of a carrier, can secure a space saving without increasing a thickness of the gasket, and can improve a yield ratio of a resin material, in the gasket of a type that a gasket body is integrated with the resin carrier. A planar gasket used by being pinched between two members superposed with each other has a gasket body achieving a seal action, and a carrier retaining the gasket body, the carrier is formed as a predetermined planar shape by a metal mold with a resin material, and is formed as a stepped shape by setting a partial portion which is superposed with the gasket body on a plane to a thin portion, and setting the other portion which is not superposed with the gasket body on the plane to a thick portion. | 03-14-2013 |
20130030103 | RUBBER COMPOSITION AND USE THEREOF - Provided is a rubber composition, which has excellent heat resistance, acid resistance, gas permeability resistance, and high-speed moldability, has low hardness and low counterforce, has excellent high-temperature compression set, and does not adhere to the metal of molds, etc. but is self-adhering with respect to organic resins. The rubber composition comprises: a predetermined ethylene/α-olefin/non-conjugated polyene copolymer [A]; a predetermined SiH group-containing compound [B-1] having two SiH groups per molecule and/or a predetermined SiH group-containing compound [B-2] having three SiH groups per molecule; and a predetermined methacrylic acid ester compound [C]. | 01-31-2013 |
20130026714 | Sealing Device - A sealing device in which a good lubricating oil film is formed along the entire circumference of a sliding surface. The sealing device ( | 01-31-2013 |
20130025337 | Gasket-Oriented Steel Plate Manufacturing Method, and Gasket - A method for manufacturing a gasket-oriented steel plate excellent in elasticity and formability, to allow for reduction of a breaking elongation of the steel plate to improve a formability (punchability) and improve a proof stress of the steel plate against a repeated stress from a discharge valve to maintain a higher elasticity of the steel plate and a gasket able to withstand the repeated stress from the discharge valve. | 01-31-2013 |
20130014639 | DIAPHRAGMAANM Takeshita; ShujiAACI AsoAACO JPAAGP Takeshita; Shuji Aso JPAANM Shigeta; KazumaAACI KariyaAACO JPAAGP Shigeta; Kazuma Kariya JPAANM Aoba; KojiAACI KariyaAACO JPAAGP Aoba; Koji Kariya JP - Disclosed is a diaphragm having a flexible film portion and an outer peripheral flange portion integrally provided on the peripheral edge of the film portion, said outer peripheral flange portion being provided between and held by a first housing and a second housing, wherein the film portion is prevented from rising upward when the diaphragm is attached to the housings. The outer peripheral flange portion has a first pressed surface which is one surface of the diaphragm in the thickness direction and which is in close contact with the first housing, and a three-dimensional shape composed of a projected portion or a recessed portion, on the first pressed surface. When the outer peripheral flange portion is attached to the first housing and the second housing while being compressed and deformed therebetween, the three-dimensional shape defines voids in the thickness direction between the outer peripheral flange portion and the first housing. | 01-17-2013 |
20120326396 | SEALING SYSTEM - There is provided a sealing system with improved durability. | 12-27-2012 |
20120319359 | SEALING APPARATUS - Provided is a sealing apparatus which can reduce the torque of a rotary portion while always exhibiting a stable and high sealing performance even when a high fluid pressure is being applied. A seal ring ( | 12-20-2012 |
20120308424 | SEALING DEVICE, AND PUMP DEVICE USING SAME - A sealing device is constructed by a seal ring and a back ring, the back ring is constructed by a lip packing provided with an inner lip and an outer lip in one end portion in an axial direction of an annular base portion, and is provided with an annular protrusion for setting a diametrical direction compression margin in the back ring in an outer peripheral surface of the annular base portion. The outer lip has a function of sealing the sealed fluid by coming into close contact with the cylinder and releasing the accumulated pressure by being pushed by a pressure at a time of a pressure accumulating phenomenon in the another space in the axial direction so as to be spaced from the cylinder. The annular protrusion is provided with a flow path for introducing the accumulated pressure to the outer lip. | 12-06-2012 |
20120294972 | SEAL-RING SHAPE FORMING METHOD, SEAL-RING SHAPE FORMING APPARATUS, AND SEAL RING - A seal ring whose abutment joint portion is opened is fitted into an annular gap while the abutment joint portion is substantially closed. The annular gap is formed between an inner circumferential surface of a hole portion provided in an outer circumferential jig and an outer circumferential surface of an inner circumferential jig disposed in the hole portion, and has a heating region and a cooling region. The seal ring is passed through the heating region and then passed through the cooling region in the annular gap. The outer circumferential jig and the inner circumferential jig are maintained at a constant temperature higher than a glass transition temperature of a resin material for the seal ring in the heating region, and maintained at a constant temperature lower than the glass transition temperature of the resin material for the seal ring in the cooling region. | 11-22-2012 |
20120274032 | SEAL-RING SHAPE FORMING METHOD, SEAL-RING SHAPE FORMING APPARATUS, AND SEAL RING - A seal ring whose abutment joint portion is opened is fitted into an annular gap while the abutment joint portion is substantially closed. The annular gap is formed between an inner circumferential surface of a hole portion provided in an outer circumferential jig and an outer circumferential surface of an inner circumferential jig disposed in the hole portion, and has a heating region and a cooling region. The seal ring is passed through the heating region and then passed through the cooling region in the annular gap. The outer circumferential jig and the inner circumferential jig are maintained at a constant temperature higher than a glass transition temperature of a resin material for the seal ring in the heating region, and maintained at a constant temperature lower than the glass transition temperature of the resin material for the seal ring in the cooling region. | 11-01-2012 |
20120172513 | FLUORORUBBER COMPOSITON - Disclosed is a fluororubber composition comprising (A) 100 parts by weight of a peroxide-crosslinkable fluororubber, (B) 1 to 15 parts by weight of ZnO, (C) at least one of a basic metal hydroxide and a metal oxide other than ZnO at a weight ratio of 0.5 or more with respect to the weight of ZnO, and (D) 0.5 to 10 parts by weight of an organic peroxide. When used for contact with biodiesel fuel, the peroxide-crosslinkable fluororubber composition effectively prevents material degradation shown in BDF while maintaining excellent compression set characteristics due to the addition of ZnO, as in conventional peroxide-crosslinkable fluororubbers, and therefore can be suitably used as, for example, a vulcanization molding material for sealing materials. | 07-05-2012 |
20120107718 | FUEL CELL SEALING STRUCTURE - A fuel cell sealing structure has a power generating body, and first and second separators arranged in both sides in a thickness direction of the power generating body. On a surface in one side in a thickness direction of the first separator, formed integrally first and second sealing protrusions respectively brought into close contact with an outer peripheral portion of the power generating body and the second separator in an outer peripheral side of the first sealing protrusion, and a short circuit prevention rib protruding in line with the first and second sealing protrusions by an electrically insulating rubber-like elastic material. On a surface in another side thereof, formed integrally a third sealing protrusion brought into close contact with a surface in an opposite side to the power generating body in the second separator, by the electrically insulating rubber-like elastic material. | 05-03-2012 |
20120091624 | Acrylic Rubber Composition - An acrylic rubber composition comprising 100 parts by weight of an ACM polymer, which contains monomers each having a carboxyl group(s) as crosslinking-site monomers, respectively, and 5 to 30 parts by weight of vein graphite or flake graphite. An acrylic rubber composition having 100 parts by weight of an ACM polymer, which contains monomers each having a carboxyl group(s) as crosslinking-site monomers, respectively, 5 to 30 parts by weight of vein graphite or flake graphite, and 0.5 to 1.5 parts by weight of a liquid paraffin. | 04-19-2012 |
20120064429 | SEALING STRUCTURE OF FUEL CELL - A sealing structure of a fuel cell has a first gasket made of an elastomer and provided integrally on a separator, and a second gasket made of an elastomer and provided integrally on other separator. A membrane-electrode assembly is sandwiched or pinched by the first and second gaskets. The first gasket has a main lip in which a top portion brought into close contact with the membrane-electrode assembly is formed flat. The second gasket has a flat seal portion and a sub lip protruding from this flat seal portion at a position opposing the main lip. The flat seal portion and the sub lip are brought into close contact with the membrane-electrode assembly. The width of the top portion of the main lip is narrower than the width of the flat seal portion, and larger than the width of the sub lip. | 03-15-2012 |
20120058660 | WATER SEAL PLUG AND CONNECTOR WITH THE WATER SEAL PLUG - A connector | 03-08-2012 |
20120043331 | WATER-PROOF STRUCTURE FOR OPENING OF CASE OF APPLIANCE - In a water-proof structure for an opening of a device case, which includes a packing installed in a peripheral groove around a cover and compressed between the inner periphery of the opening and the groove when the cover is inserted into the opening, the packing is configured to have a flat contact surface in contact with the bottom of the groove and have a cross section having a width larger than the height, and the cross section of the packing also has a flat bottom or an inner side to fit the groove bottom that is also flat in a cross section while the outer side has a convex shape so that the whole cross section has a D-shaped form, in order to prevent degraded sealing capability or improper installation due to twist of the packing in the groove. | 02-23-2012 |
20120032405 | SEALING STRUCTURE FOR CONTINUOUSLY VARIABLE TRANSMISSION - A sealing structure for a continuously variable transmission, which seals a clearance between a movable sheave and a cylinder. The continuously variable transmission may change a groove width of each pulley of the cylinder by moving a corresponding movable sheave though supply and discharge of a hydraulic pressure to and from the cylinder. The sealing structure includes an outer peripheral side seal member that is ring-shaped and disposed in a ring-shaped groove formed in one of the movable sheave and the cylinder; and an inner peripheral side seal member that is more elastic than the outer peripheral side seal member, ring-shaped, and disposed in a layered manner in the ring-shaped groove on an inner peripheral side with respect to the outer peripheral side seal member. A side of the outer peripheral side seal member where it contacts the inner peripheral side seal member is chamfered. | 02-09-2012 |
20120018957 | SEAL RING - A seal ring having a more stable torque reduction effect. A seal ring is adapted to seal the annular gap between a housing and a shaft which is inserted through the shaft hole of the housing, the housing and the shaft being provided so as to be rotatable relative to each other. The seal ring is mounted in an annular groove provided in the shaft, is configured so that the seal ring is pressed, by the pressure of fluid to be sealed, against a side surface of the annular groove and against the inner peripheral surface of the shaft hole, and has a recess ( | 01-26-2012 |
20120018927 | SEAL COMPONENT MANUFACTURING METHOD AND MOLD - To prevent defective molding, a base member is set between split molds of a metal mold, a molding rubber material is injected into an endless shape cavity defined between the base member and the split mold, an injection amount thereof is made such that the molding rubber material fills the cavity and thereafter flows from an air vent hole open to a confluence position in the cavity into a surplus material reservoir provided downstream but does not fill the surplus material reservoir, pressure drop due to flow resistance is caused to the molding rubber material flowing into the surplus material reservoir, and thereby pressure in the cavity is maintained to be not lower than pressure required to mold a gasket and lower than pressure causing leakage from the cavity. | 01-26-2012 |
20120007319 | SEALING DEVICE - To improve durability of a seal lip of a sealing device attached to a shaft hole in a housing so as to slidably contact with a shaft, the sealing device has a sealing device body integrally having a tubular fixation portion fixed to the inner periphery of the shaft hole and a seal lip in slidable contact with the shaft and an oil supply member integrally having a tubular fitting portion fitted to the inner peripheral side of the fixation portion and a flange-like oil supply portion provided so as to extend radially inward from the fitting portion, the oil supply portion is arranged at a sealing fluid side from the end of the seal lip, radially inwardly extending protrusions are provided at an inner peripheral edge of the oil supply portion, and oil transmission grooves are provided on the protrusions so as to extend toward their ends. | 01-12-2012 |
20120006438 | ACCUMULATOR - An outer gas type or inner gas type accumulator has a mechanism for reducing a pressure difference generated when liquid in a liquid chamber and gas expand thermally at a zero-down time, the pressure difference between the inside and outside of a bellows is reduced to suppress abnormal deformation of the bellows, a movable plate supported by spring means is provided at the bellows cap side of an oil port, the movable plate is supported by the spring means and away from a seal in normal operation, the movable plate is pushed by the bellows cap and contacts with the seal while elastically deforming the spring means, in a zero-down state, and when the liquid and the gas expand thermally in the zero-down state, the bellows cap moves to a position where the liquid pressure and the gas pressure balance, while the movable plate keeps contact with the seal. | 01-12-2012 |
20110315486 | RUBBER COMPOSITION - Disclosed is a rubber composition containing 100 parts by weight of a rubber blend comprising 99-85 by weight % of chloroprene rubber and 1-15 by weight % of chlorinated polyethylene rubber, (A) 10 to 30 parts by weight of a polyether ester-based plasticizer having a molecular weight of 450 to 650, or (B) 10 to 30 parts by weight of both of a polyether ester-based plasticizer having a molecular weight of 450 to 900 and an ester-based plasticizer having a molecular weight 350 to 500, and 3 to 10 parts by weight of two or more aromatic amine-based antioxidants. The rubber composition can simultaneously satisfy requirements for use as, for example, an automobile grease cup material, that is, heat resistance, ozone resistance, cold resistance, and adhesion to metal or resin. | 12-29-2011 |
20110305871 | Sliding Member and Process for Producing the Same - Object: To provide a sliding member with a low friction coefficient in which, when fine dents are formed in a surface of the sliding member by dimpling using a laser, no hard raised portions are gerenrated, and which does not damage a mating member; and to provide a process for producing the sliding member. | 12-15-2011 |
20110291365 | METHOD FOR PRODUCING ROTARY SHAFT SEAL AND ROTARY SHAFT SEAL - [Problem] To provide a method for producing a rotary shaft seal that exhibits improved eccentricity-conforming properties, in which each of the initial characteristics, i.e., a torque reduction (reduced friction) and sealing properties attributed to reduced oil leakage (oil pump rate when the seal member slides), can be improved, and degradation of these characteristics can be inhibited even after friction and abrasion; and the rotary shaft seal. | 12-01-2011 |
20110291364 | SEALING DEVICE - To prevent breakage of a sealing device having a main sealing body installed within an annular installing groove ( | 12-01-2011 |
20110278800 | SEALING DEVICE - A sealing device includes a stationary side installation ring fixed to a stationary side member, a rotation side installation ring fixed to a rotation side member, a stationary side lip integrally provided on the stationary side installation ring and slidably contacting the rotation side installation ring, rotation side lips integrally formed on the rotation side installation ring and slidably contacting the stationary side installation ring, and a pulsar ring for a rotary encoder integrally formed on the rotation side installation ring, and magnetized to be multipolar. The rotation side installation ring includes first and second rotation side installation rings which are attached to each other. The rotation side lips are provided on the first rotation side installation ring at a relatively inner side. The pulsar ring is provided on the second rotation side installation ring at a relatively outer side. | 11-17-2011 |
20110278799 | SEAL RING - The invention provides a seal ring capable of stably leaking a sealed fluid from an inner peripheral face side. | 11-17-2011 |
20110247908 | DYNAMIC DAMPER FOR HOLLOW ROTATING SHAFT - In order to secure an excellent dynamic vibration absorbing characteristic without sacrificing fixing force and improve an assembling property, a dynamic damper for a hollow rotating shaft is provided with a tube body fixed to an inner periphery of the hollow rotating shaft, a pair of end plates fixed to an inner periphery of the tube body so as to be away from each other in an axial direction, a mass body positioned between the end plates and floatingly inserted to the inner periphery of the tube body, and elastic bodies coupling the end plates and the mass body in the axial direction to each other and made of a rubber-like elastic material, whereby the elastic bodies come to shear springs with respect to a vibration in the axially orthogonal direction. | 10-13-2011 |
20110227295 | TWO-MATERIAL COMPOSITE GASKET - Disclosed is a two-material composite gasket, preferably a two-material composite annular gasket, for sealing a gap between two opposing surfaces, one of the surfaces having a concave gap portion, which is to be sealed by the gasket, the gasket having an oblong cross-sectional shape and having projections on the top end and bottom end thereof, the gasket including an upper low-hardness elastomer molded part formed of vulcanized rubber having a Shore A hardness of 5 to 35, a lower high-hardness elastomer molded part formed of vulcanized rubber having a Shore A hardness of 45 to 80, and a parting line bonding the low-hardness elastomer molded part and the high-hardness elastomer molded part, the parting line being positioned so that the height of the low-hardness elastomer molded part is 5 to 40% of the height of the entire gasket. The two-material composite gasket enables three-surface simultaneous sealing of a gap formed by three members, as typified in a joint structure composed of a cylinder block, a cylinder head, and a chain cover of an automobile engine. | 09-22-2011 |
20110221140 | SEALING DEVICE - To improve sealing performance, a sealing device comprises an oil seal ( | 09-15-2011 |
20110200911 | FUEL CELL SEALING STRUCTURE - To effectively prevent deformation of an MEA and shift of GDLs, first GDLs, second GDLs, and separators are layered in order at both sides of the MEA in the thickness direction thereof, the gaskets which sandwich an end portion of the MEA outside the first GDLs and the second GDLs are made from rubber or a synthetic resin material having rubber-like elasticity and integrally provided on the separators respectively, the first GDLs have end portions which are formed so as to protrude beyond outer peripheries of the second GDLs, and the gaskets have support step portions which can position and support the end portions of the first GDLs at the same height as the support height by the second GDLs. | 08-18-2011 |
20110193298 | GASKET - A gasket is provided which is intended to improve its sealing performance by attaining a further stabilization of the posture thereof in a groove. In a gasket ( | 08-11-2011 |
20110193294 | SEALING DEVICE - A sealing device for performing sealing by a throw off effect of a slinger ( | 08-11-2011 |
20110181003 | SEAL STRUCTURE - To provide a seal structure having seal members which can be easily inserted into insertion holes of a housing, and achieve an excellent sealing performance of the seal members, the seal structure is comprised of a housing provided with insertion holes to which a flexible wiring substrate is inserted, and seal members which are integrally formed on the flexible wiring substrate are made of a rubber elastic material in a bush-shape, and hermetically seal gaps between the insertion holes and the flexible wiring substrate, wherein projected portions are provided on parts of the flexible wiring substrate at positions where the seal members are integrally formed. | 07-28-2011 |
20110169226 | SEALING SYSTEM - A sealing system is provided which is intended to achieve an improvement in durability. A dust seal is composed of a first dust seal ( | 07-14-2011 |
20110162864 | HERMETIC SEALING DEVICE AND HERMETIC SEALING STRUCTURE - Provided are a hermetically sealing device and a hermetically sealing structure having improved shielding characteristics against electromagnetic waves. The hermetically sealing device is provided with a conductive seal member ( | 07-07-2011 |
20110159972 | DYNAMIC DAMPER FOR HOLLOW ROTATING SHAFT - In order to achieve downsizing, and to prevent a cleaning fluid from staying inside, a dynamic damper for a hollow rotating shaft is provided with a mass body floatingly inserted to an inner periphery of the hollow rotating shaft, of which a vibration is to be reduced, and an elastic body structured such that an inner diameter portion is fitly attached to an outer periphery of the mass body and an outer diameter portion is brought into pressure contact with an inner peripheral surface of the hollow rotating shaft, and made of a rubber-like elastic material, wherein grooves having both ends open to spaces at both sides in an axial direction of the elastic body are formed in one of fitted surfaces to each other of the mass body and the elastic body. | 06-30-2011 |
20110143124 | FLUORORUBBER-METAL LAMINATE SHEET - A fluororubber-metal laminate sheet, which comprises a metallic sheet and a vulcanized fluorocarbon layer, provided on the metallic sheet by applying thereto a fluororubber composition comprising (A) 100 parts by weight of a polyol-vulcanizable fluororubber, (B) 10-50 parts by weight of amorphous graphite, (C) 1-15 parts by weight of a phenol resin, (D) 1-4 parts by weight of a silane coupling agent, (E) 0.5-8 parts by weight of a polyol-based vulcanizing agent, and (F) 0.5-6 parts by weight of a vulcanizing accelerator, followed by vulcanization of the fluororubber composition to form laminate, where the metallic sheet is free from either a chromating treatment or a chromating substitute treatment, is distinguished in characteristics such as sealability, compression resistance, air-heated aging resistance, anti-freezing liquid resistance, oil resistance, sticking resistance, abrasion resistance, etc. | 06-16-2011 |
20110140375 | SEAL STRUCTURE FOR ELECTRONIC EQUIPMENT - In order to enhance a shape retaining property of a gasket consisting only of a rubber, prevent damage to a casing for an electronic equipment due to high reactive force of the gasket, and make assembling of the casing easy, a seal structure comprises a gasket installed in a non-adhesion manner between a case and a lid to be interposed in a compressed state when the case and the lid are assembled, and a resin film integrated with the gasket to enhance the shape retaining property of the gasket, the gasket has a portion compressed between the case and the lid when they are assembled, and a portion not compressed between them when assembled and the resin film is integrated with the portion which is not compressed. | 06-16-2011 |
20110127692 | METHOD OF MANUFACTURING SEAL PART - To form gaskets on both sides of a base material ( | 06-02-2011 |
20110114232 | Method for Producing Steel Sheet for Gasket, and Gasket - The present invention aims at providing: a method for manufacturing such a kind of gasket-oriented steel plate excellent in elasticity and formability, in a manner to allow for reduction of a breaking elongation of the steel plate to thereby improve a formability (punchability) thereof while improving a proof stress of the steel plate against a repeated stress from a discharge valve to thereby maintain a higher elasticity of the steel plate; and a gasket able to withstand the repeated stress from the discharge valve. The manufacturing method of a gasket-oriented steel plate of the present invention comprises the steps of: annealing a starting steel material having a composition of: Mn less than 0.5%, Ni less than 2.0%, and Cr less than 12.0%; and subsequently temper rolling the annealed starting steel material at a rolling reduction ratio of 10% or more; and the gasket of the present invention is formed by adopting a gasket-oriented steel plate obtained by the above manufacturing method. | 05-19-2011 |
20110111219 | Vulcanizable Adhesive Composition - A vulcanizable adhesive composition, which comprises 45-75% by weight of phenol resin, preferably a mixture of novolak-type and resol-type phenol resins, 5-25% by weight of halogenated polymer, and 10-30% by weight of a metal oxide, can improve an interlayer adhesiveness between the acrylic rubber and metal without surface treatment of metal, such as a chemical treatment, e.g. zinc phosphate treatment, etc., blast treatment, or primer treatment, and thus can be effectively used in the production of a metal/adhesive layer/acrylic rubber composite. | 05-12-2011 |
20110104583 | Fuel Cell Constituent Part And Manufacturing Method Thereof - A pair of gaskets is integrally formed with seal lips corresponding to each other and extending in the longitudinal direction of the gasket, and side portions disposed on either sides or one side of the seal lip and having a height lower than that of the seal lip. The plate-shaped attachment member includes a through-hole provided at a position where the side portions of the pair of gaskets communicate with each other so as to be formed therethrough in the thickness direction, and the pair of gaskets is integrally formed through the through-hole. An opening shape of the through-hole is set to be an elongated shape in the longitudinal direction of the gasket so as to make a width dimension of each of the side portions as small as possible. | 05-05-2011 |
20110097647 | Fuel Cell Sealing Structure And Manufacture Method - A fuel cell seal structure includes a GDL which is formed by a porous body and a gasket which is integrally formed with a peripheral edge of a GDL. The GDL includes a rubber impregnation portion and an impregnation stopping portion. The gasket is integrally formed with a gasket body portion having a thickness dimension larger than a thickness dimension of the GDL and an overlap portion overlapping with the GDL in a plane other than a portion impregnated by the GDL. The rubber impregnation portion of the GDL includes an inner portion which is provided between the impregnation stopping portion and an outer portion overlapping with the overlap portion of the gasket in a plane so as not to overlap with the gasket in a plane. | 04-28-2011 |
20110095486 | OIL SEAL - Ridge and groove sections ( | 04-28-2011 |
20110069913 | WATERPROOFING DEVICE FOR MOBILE APPARATUS AND METHOD OF MANUFACTURING THE SAME - A waterproofing device for a mobile apparatus, using a thin coaxial cable or an optical cable and capable of being applied to a portable telephone of bi-directionally openable/closable type. A waterproofing device for a mobile apparatus, adapted to connect housings to each other by a linear member. The waterproofing device is provided with seal members consisting of a rubber-like elastic material and sealing a gap between the housings, and also with a connecting member having opposite ends in the vicinities of which the seal members are integrated. The linear member is passed through the inside of the connecting member to electrically interconnect electronic parts of the housings. The connecting member has a circular tube-like shape consisting of a soft resin material. | 03-24-2011 |
20110068542 | SEALING DEVICE - A sealing device has a sealing device main body ( | 03-24-2011 |
20110054106 | RUBBER COMPOSITION AND USES THEREOF - It is an object of the present invention to provide a rubber composition which is excellent in sealing properties and acid resistance, has low reaction force, low hardness and low compression set and particularly has such high heat resistance that the rubber composition does not crack even when it is used under the conditions of high temperatures and high compression. It is another object of the present invention to provide uses of the rubber composition and main bodies on which the rubber composition has been mounted. The rubber composition of the present invention comprises an ethylene/α-olefin/non-conjugated polyene copolymer [A] and calcined talc [B]. | 03-03-2011 |
20110053048 | Fuel Cell Constituting Component - A fuel cell component integrates an attachment member | 03-03-2011 |
20110031703 | SEAL STRUCTURE - In order to provide excellent waterproofness at a low manufacturing cost to a seal structure comprising a housing to which a flexible wiring board ( | 02-10-2011 |
20110014541 | Fuel Cell Gas Diffusion Layer Integrated Gasket - A gas diffusion layer-integrated gasket | 01-20-2011 |
20110014540 | Fuel Cell Gas Diffusion Layer Integrated Gasket - To improve assembly precision of a fuel cell by improving a sealing property. A first gasket | 01-20-2011 |
20110012315 | FLUORORUBBER-METAL LAMINATE GASKET MATERIAL - A fluororubber-metal laminate gasket material, which comprises a metallic steel sheet, a zirconium element-, phosphorus element-, and aluminum element-containing surface-treating agent layer, a silica-containing thermosetting phenol resin-based vulcanizing adhesive layer, and a fluororubber layer, as successively laid upon one another on the metallic steel sheet, where the silica-containing thermosetting phenol-based vulcanizing adhesive is a thermosetting phenol resin-based vulcanizing adhesive comprising silica and cresol novolak-type epoxy resin or phenol novolak-type epoxy resin, and further containing 11-80 parts by weight of an aliphatic amine-based compound or a mixture thereof with an imidazole-based compound as a curing accelerator on the basis of 100 parts by weight of the thermosetting phenol resin, where the aliphatic amine-based compound and the imidazol-based compound are in a proportion of the former to the latter of 100-10 wt. % to 0-90 wt. %. | 01-20-2011 |
20110006485 | SEALING DEVICE - A sealing device ( | 01-13-2011 |
20110005584 | DYE-SENSITIZED SOLAR CELL - Provided is a dye-sensitized solar cell having a sealing means which is not impaired by electrolyte or sunlight because a gasket can be fixed to a photoelectrode or a counter electrode without using an adhesive so that long term reliability of the sealed state is ensured, wherein the dye-sensitized solar cell has a sealing means for sealing an electrolyte layer between a photoelectrode and a counter electrode, and the sealing means is a lip-shaped gasket made of an elastic material, sandwiched between the photoelectrode and the counter electrode, and fixed by a retaining means formed in the photoelectrode or the counter electrode so as to seal the electrolyte layer. | 01-13-2011 |
20110000842 | HUMIDIFYING MEMBRANE MODULE - To provide a humidifying membrane module that is reduced in weight, size and cost by making a case in a single layer structure, the humidifying membrane module has a hollow fiber membrane bundle constructed from plural hollow fiber membranes, a case accommodating the hollow fiber membrane bundle, a first flow passage extending through hollows of the hollow fiber membranes, and a second flow passage extending through the outer surface sides of the hollow fiber membranes, the membrane bundle and the case are simultaneously integrated at both ends of the membrane bundle by using potting members sealing gaps between the membrane bundle and the case, an inlet and an outlet constructing the first flow passage are formed at the both ends of the case respectively, and an entrance and an exit constructing the second flow passage are formed in side surfaces near the both ends of the case respectively. | 01-06-2011 |
20100330461 | Fuel Cell - In a fuel cell, an elastic body provides first protrusion T | 12-30-2010 |
20100314837 | Lip Type End Face Sealing Device - A lip type end face sealing device having excellent sealability to different kinds of liquids on both sides in the axial direction and having excellent durability. A case is tight fitted to an inner peripheral face of a housing and includes case members. One pair of seal lips is integrally fitted to inner peripheral flange parts, positioned oppositely each other in the axial direction, and opened in a tapered shape. One pair of the seal lips is slidably contacted with flange parts of slingers tight fitted to an outer periphery of a rotary shaft. Pressure in seal internal spaces between the seal lips is released through a vent hole. | 12-16-2010 |
20100308542 | HYDRAULIC CYLINDER - The hydraulic cylinder having a portion on a side of a lip tip end of an annular clearance between an inner circumferential face of a shaft hole of a cylinder and a piston is made up of a minute clearance in order to suppress protrusion of the lip, wherein an annular clearance area for suppressing occurrence of the cavitation and for shortening an axial distance of the annular clearance portion made up of the minute clearance is formed on an opposite side of the annular clearance portion from a mounting groove. | 12-09-2010 |
20100295253 | PACKING AND SEALING SYSTEM - A packing and a sealing system capable of enhancing an accumulation avoiding function. A packing fitted to an annular groove provided in one member out of a housing having a shaft hole and shaft to be inserted into the shaft hole to seal the annular gap between the two members, which comprise a base and a lip portion projecting from the groove bottom side of the annular groove in the base toward a sealed object side, and which is constituted such that, when the peripheral surfaces on the groove bottom side of the annular grooves in the base and the lip portion tightly contact the groove bottoms of the annular grooves and a pressure on a non-sealed object side goes higher than a pressure on a sealed object side, the base and the lip portion deform to allow the sealed object side to communicate with the non-sealed object side at contact portions with the groove bottoms of the annular grooves and thereby reduce a pressure on the non-sealed object side, wherein the base is provided with a pressure guide path for allowing a contact portion between the lip portion and the groove bottom of the annular groove to communicate with the non-sealed object side. | 11-25-2010 |
20100289226 | SEALING DEVICE FOR UNIVERSAL JOINT - To prevent damage and malfunction, a sealing device for a universal joint has a metal ring ( | 11-18-2010 |
20100285273 | ACRYLIC RUBBER-METAL COMPOSITE - An acrylic rubber-metal composite, which comprises an iron phosphate treated iron-based metal, and an adhesive layer comprising a phenol resin and a metal oxide, and preferably further a halogenated polymer, and an acrylic rubber layer, successively provided on the iron-based metal surface, has not only distinguished initial adhesiveness and water resistance, when the acrylic rubber is bonded to the metal owing to application of the iron phosphate treatment to the metal surface, but also can reduce the abrasion of the mating materials when brought into contact with rubber-unbaked parts of the sheet, because the surface roughness Ra[according to JIS 0601(1994)] of the surface treated steel sheet is 0.6 or less. | 11-11-2010 |
20100272841 | EXTRUDER - An extruder that can be cleaned more easily. An extruder in which a material is supplied from a supply opening ( | 10-28-2010 |
20100264606 | GASKET - To provide a gasket ( | 10-21-2010 |
20100261004 | Rubber-Metal Laminate - A rubber-metal laminate, which comprises a metallic sheet and a rubber layer formed on the metallic sheet, the rubber layer being formed from an NBR composition comprising (A) 100 parts by weight of nitrile rubber, (B) 0.1-5 parts by weight of sulfur, and (C) 0.5-10 parts by weight of at least one sulfur donor compound selected from tetrabenzylthiuram disulfide, tetrakis(2-ethylhexyl)thiuram disulfide, zinc tetrabenzyldithiocarbamate, and 1,6-bis(N,N-dibenzylthiocarbamodithio)-hexane, preferably the NBR composition further containing (D) 3-100 parts by weight of silica and (E) 60-200 parts by weight of aluminum oxide having an average particle size of 0.1-10 μm, as a rubber layer-forming composition, where the rubber layer can be formed on the metallic sheet without generating nitrosoamines as controlled items of TRGS552, PRTR, etc. and without lowering the vulcanizate physical properties or vulcanization rate. The rubber-metal laminate can be effectively used as a seal material. | 10-14-2010 |
20100259014 | SEALING DEVICE - To prevent muddy water intrusion into a sliding section (S | 10-14-2010 |
20100244388 | SEALING DEVICE - To prevent entry of muddy water, a sealing device ( | 09-30-2010 |
20100240828 | Silicone Rubber Composition - A silicone rubber composition, which comprises 100 parts by weight of vinyl group-introduced methylphenylvinyl-based silicone rubber obtained by copolymerization of dimethylsiloxane copolymerization units as the main component with 3-30 mol. % of methylphenylsiloxane copolymerization units, and 0.2-8 parts by weight of an organic peroxide, where introduction of vinyl groups into the silicone rubber can be attained generally by copolymerization of 0.1-5 mol. % of methylvinylsiloxane. When silica is used as a filler, it is desirable to use a surfactant for silica, and water together. Owing to distinguished low-temperature characteristics and blister resistance, the present silicone rubber composition can be used a suitable seal material for a high-pressure hydrogen gas storage tank, for example, to storage under 70 MPa, and particularly as suitable vulcanization-molding materials for O rings, packings, gaskets, oil seals, valves, etc. | 09-23-2010 |
20100225072 | SEAL-RING SHAPE FORMING METHOD, SEAL-RING SHAPE FORMING APPARATUS, AND SEAL RING - A seal ring whose abutment joint portion is opened is fitted into an annular gap while the abutment joint portion is substantially closed. The annular gap is formed between an inner circumferential surface of a hole portion provided in an outer circumferential jig and an outer circumferential surface of an inner circumferential jig disposed in the hole portion, and has a heating region and a cooling region. The seal ring is passed through the heating region and then passed through the cooling region in the annular gap. The outer circumferential jig and the inner circumferential jig are maintained at a constant temperature higher than a glass transition temperature of a resin material for the seal ring in the heating region, and maintained at a constant temperature lower than the glass transition temperature of the resin material for the seal ring in the cooling region. | 09-09-2010 |
20100222475 | AQUEOUS SURFACE-TREATING AGENT - An aqueous surface-treating agent, which comprises a silicone oil aqueous emulsion, a polyurethane resin aqueous emulsion, and a silane compound represented by the following general formula | 09-02-2010 |
20100212953 | SEALING STRUCTURE - To eliminate rubber burr formation at the time of molding and to make sealing members to be surely integrated with the flexible wiring board, a sealing structure consists of housings to which the flexible wiring board is inserted, and sealing members integrally formed on the flexible wiring board to seal gaps between the housings and the flexible wiring board, the flexible wiring board consists of a base board made of an elastic material, a conductive printed wiring layer formed on the surface of the base board, and a cover film covering the surface of the printed wiring layer, and dummy printed wiring layers are arranged in regions where the sealing members are integrated with the flexible wiring board, so as to make a shape as if the printed wiring layer exists substantially over the entire base board in the width direction. | 08-26-2010 |
20100201078 | SEALING DEVICE - A sealing device includes a side lip contacting with a surface angled to the axis. To optimize the cross sectional shape of the side lip, T | 08-12-2010 |
20100200355 | Seal Structure - A seal structure provided in an inner mechanism of an automatic shift gear includes: a housing; a piston; a canceller; a return spring; an opponent member which is disposed opposite to a centrifugal canceller chamber in the canceller and forms an oil path between the opponent member and the canceller; an outer circumferential seal unit which is provided on an outer circumferential portion of the canceller and comes into contact with the piston to seal an operating oil supplied to the canceller chamber; and a second outer circumferential seal unit which is provided on the outer circumferential portion of the canceller and comes into contact with the opponent member to seal an operating oil flowing through the oil path, in which the second circumferential seal unit has an axial seal shape which comes into contact with an inner circumferential shape of a cylindrical shape provided on the opponent member. | 08-12-2010 |
20100194059 | METAL FIXTURE FOR DUST COVER - To eliminate pins for specifying a vertical position of a metal fixture from a dust cover forming mold to suppress variation in product shape caused by wear of the pins, the ring-shaped metal fixture ( | 08-05-2010 |
20100194054 | SEALING DEVICE - A sealing device having a dust filter, in which sliding torque due to the dust filter is reduced with dust sealing performance of the dust filter maintained at a high level. The sealing device is provided with a seal lip ( | 08-05-2010 |
20100193059 | ACCUMULATOR - To restrain abnormal deformation of a bellows due to a pressure difference between the inside and outside thereof, an outside gas type accumulator includes a pressure difference regulation mechanism ( | 08-05-2010 |
20100190895 | RUBBER COMPOSITION - Cross-linked rubber obtained from a rubber composition, which comprises 100 parts by weight of EPDM, 5-120 parts by weight carbon black, 70-150 parts by weight of fine bituminous powder, and 0.2-8 parts by weight of an organic peroxide, has distinguished heat resistance and sealability, and can suppress blister generation due to pressure changes when used in contact with carbon dioxide, and is specifically distinguished foaming-resistance characteristics due to abrupt pressure reduction of carbon dioxide, which are the necessary characteristics of seal material for carbon dioxide refrigerant, and also distinguished compression set characteristics, which determine the product life at elevated temperatures, and thus is suitable for use as carbon dioxide seal materials, such as O rings, packings, gaskets, oil seals, valves, etc. | 07-29-2010 |
20100190018 | PROCESS FOR PRODUCING NITRILE RUBBER-METAL LAMINATE - A nitrile rubber solution prepared by dissolving and dispersing into an organic solvent a nitrile rubber composition comprising 100 parts by weight of nitrile rubber, 40 parts by weight or more of carbon black having a DBP oil absorption amount of 30-100 ml/100 g (according to ASTM D1765-91), 15-100 parts by weight of silica having particle sizes of 0.01-0.1 μm, 0-40 parts by weight of other inorganic filler than the carbon black and silica, and 5-20 parts by weight of an organic peroxide, and preferably further containing 2-10 parts by weight of a silane coupling agent is applied to an adhesive layer on one side or both sides of a metallic sheet, followed by vulcanizing the coated layer, thereby forming a rubber layer. | 07-29-2010 |
20100187231 | BREATHER - To perform exhaustion to regulate pressure in a case with surely recovering liquid in the case without draining it even when the pressure in the case rises rapidly, a breather for regulating internal pressure in a case by performing exhaustion to the outside when the internal pressure exceeds predetermined pressure thereby reducing the internal pressure, includes an exhaust passage leading from the inside of the case to the outside; a liquid recovery passage for recovering liquid discharged from the inside of the case to the inside of the case; and a discharge valve means which opens when the internal pressure in the case exceeds the predetermined pressure, wherein the liquid recovery passage is provided at the atmosphere side beyond the discharge valve means, and a recovery valve means is provided in the liquid recovery passage. | 07-29-2010 |
20100181733 | ROLLBACK SEAL - A rollback seal, which is used in a space between a piston and a housing of a hydraulic brake configured to brake a wheel by clamping a disc rotor fixedly attached to the wheel, is arranged in an annular groove of the housing, has a substantially rectangular sectional shape, has an annular recess formed in one end face thereof at the side where hydraulic pressure acts on the piston, and has a chamfered section formed at a piston side corner of the other end face thereof at the opposite side to that where the recess is formed, thereby to reduce total weight of brake system, secure sufficient amount of rollback at low temperature, and reliably return a piston from brake position to release position with improved sealing characteristics over a longer service life. | 07-22-2010 |
20100181089 | SEALING STRUCTURE - To minimize thermal influence when integrally forming the sealing member on a flexible wiring board, a sealing structure includes a housing, a flexible wiring board inserted therethrough, and a sealing member integrally formed with the flexible wiring board to airtightly seal a gap between the housing and the flexible wiring board, the flexible wiring board includes a base substrate made of an elastic material, an electrically conductive printed wiring layer formed on a surface of the base substrate, and a cover film covering a surface of the printed wiring layer, and the printed wiring layer which crosses the sealing member is formed as a plurality of divided print wiring layers at only a crossing region with the sealing member and its vicinity. | 07-22-2010 |
20100176533 | SEAL MANUFACTURING METHOD - The invention provides a method for manufacturing a seal integrally provided with conducting members, the method capable of suppressing generation of burrs even if the conducting members have complicated structures, e.g., when the conducting members are laid on each other while displaced from each other. | 07-15-2010 |
20100170390 | HYDRAULIC CYLINDER - A hydraulic cylinder includes a cylinder having a shaft hole, a piston inserted into the shaft hole so as to have clearance with respect to an inner circumferential surface of the shaft hole, and seal members arranged in annular grooves formed in an inner circumference of the shaft hole to seal an annular gap between the inner circumference of the shaft hole and the piston, wherein in the hydraulic cylinder in which cavitation could occur in a portion of the clearance accompanying motion of the piston, an expansion part obtained by expanding a portion of a sidewall surface of the annular grooves on an inner circumferential edge side outward from an arrangement area of the seal members is provided to make a distance from a location where cavitation occurs to the seal members longer by a space formed by the expansion part. | 07-08-2010 |
20100140881 | SEALING STRUCTURE - A sealing structure having a gasket installed in an installation groove in one member. The gasket has a body section whose width is less than the width of the installation groove. On opposite ends, in the depth direction of the installation groove, there is provided a pair of seal surfaces that contact a surface of another member and the bottom of the installation groove. The bottom surface of the installation groove is a curve that is deepest at its center in the width direction of the groove. On the gasket body section, on the side corresponding to the bottom of the installation groove, there is formed a pair of groove bottom-side projections extending along the longitudinal direction of the gasket with the seal surface between the projections, projecting from opposite ends in the width direction of the body section, and coming into contact with the surface of the installation groove. | 06-10-2010 |
20100136352 | COATING AGENT - A coating agent, which comprises a cellulose derivative, an isocyanate group-containing 1,2-polybutadiene, a synthetic wax having a softening point of 100°-150° C., a fatty acid amide having a softening point of 60°-170° C., and graphite, can satisfy desired performances, when applied to rubbery elastomers, etc. such as prevention of sticking, adhesion and blocking, and improvement of abrasion resistance, and also can serve as a surface-treating agent for vulcanized rubber without peeling of coating films due to adhesion under high-temperature compression or friction-abrasion under high specific pressure. | 06-03-2010 |
20100133757 | SEALING DEVICE - A sealing device in which a good lubricating oil film is formed along the entire circumference of a sliding surface. The sealing device ( | 06-03-2010 |
20100123292 | GASKET - A gasket has an annular metallic frame, and a seal portion made of an elastic material which extends annularly along an inner peripheral portion of the metallic frame, and which is connected to the metallic frame. The metallic frame has a penetration hole through which a shaft portion of a bolt that fastens two surfaces of an appliance that faces each other penetrates, and a seat surface-corresponding portion that is formed around the penetration hole, and that corresponds to a seat surface of the bolt. | 05-20-2010 |
20100109252 | OIL SEAL - For an oil seal ( | 05-06-2010 |
20100108168 | ACCUMULATOR - To prevent plastic deformation of a bellows due to a pressure difference between inner and outer sides of the bellows in an outside gas type or inside gas type accumulator, a disc-like gasket is held in a float able state to a surface close to a stay in a bellows cap by a gasket holder, so that, the disc-like gasket moves together with the bellows cap at a steady operation time, the disc-like gasket moves together with the bellows cap to contact with an end surface portion of the stay, thereby closing the liquid chamber at a zero-down time, and the bellow cap moves toward a position where liquid pressure and gas pressure balance while the disc-like gasket keeps contacting with the stay due to a difference of pressure receiving areas in both the surfaces when the liquid in the liquid chamber is thermally expanded at a zero-down time. | 05-06-2010 |
20100102519 | Sealing Structure And Gasket - There is provided a sealing structure and a gasket which can seal both of a portion where a groove for mounting the gasket is formed and a portion where a groove for mounting the gasket is not formed when the portions are connected. | 04-29-2010 |
20100086769 | RUBBER-METAL LAMINATE - A hydrogenated nitrile rubber-metal laminate, which comprises a metallic sheet subjected to a hexavalent Cr ions-free chemical conversion treatment, a defatting treatment, a surface-roughening treatment, a primer treatment, or a combination of the treatment, and an adhesive layer and a rubber layer successively laid on one or both surfaces of the metallic sheet, wherein the rubber layer is a vulcanizate of a hydrogenated nitrile rubber compound comprising 100 parts by weight of a hydrogenated nitrile rubber, 50-250 parts by weight of an inorganic filler containing not more than 20% by volume, on the basis of total compound, of a non-reinforcing inorganic filler having an average particle size of not more than 5 μm, 4-20 parts by weight of an organic peroxide, and preferably furthermore 2-10 parts by weight of N,N′-phenylene dimaleimide. The rubber-metal laminate has a vulcanized rubber layer(s) distinguished in the heat resistant at elevated temperatures of 150° C. or higher, the heat bending resistance, e.g. at 200° C. for 100 hours, and the rubber bulging resistance (rubber flow resistance) when used at elevated temperatures and surface pressures. | 04-08-2010 |
20100084820 | SEALING DEVICE AND PRODUCTION METHOD THEREOF - A sealing device is provided which is capable of reducing its sliding resistance. In a sealing device | 04-08-2010 |
20100066030 | HERMETIC SEALING DEVICE - To provide a sealing device having a side lip in slidably contact with a mate member like a slinger, wherein a contact state of the side lip is stabilized and sliding resistance of the side lip is reduced when lip tightening margin becomes maximum, a contact surface ( | 03-18-2010 |
20100066029 | SEALING DEVICE - To avoid interference of a side lip when plural sealing devices are piled up, a sealing device installed on one member of two members rotating relatively is constructed by combining a mounting ring fitted on the one member and a rubber-like elastic body attached on the mounting ring, and has a side lip formed by the elastic body, the mounting ring has a cylinder portion at a position fitted on the peripheral surface of the one member, the elastic body has a rubber step part provided at axially one side of the cylinder portion, the cylinder portion and the rubber step part have a positional relationship that the former of an upper sealing device is placed on the latter of the one sealing device when piled up, and the side lip of the one sealing device is dimensioned not to interfere with the upper sealing device even when they are in such a positional relationship. | 03-18-2010 |
20100061012 | RAMP FOR MAGNETIC DISC APPARATUS - For cushioning a shock to prevent problems such as a reading error, a ramp for a magnetic disc apparatus is made of a resin material for forming a ramp main body and a material having higher rigidity than the resin material, disc facing surfaces in the disc insertion portion for inserting a magnetic disc is provided with disc contact portions made of the high rigidity material, a bottom surface portion of a concave portion of the disc insertion portion is constructed by a combination of a bottom surface portion made of the resin material and a bottom surface portion made of the high rigidity material, and a step structure is provided by arranging the bottom surface portion made of the high rigidity material at a position moved rearward in a depth direction of the concave portion in comparison with the bottom surface portion made of the resin material. | 03-11-2010 |
20100052266 | SEALING DEVICE - To enhance lubricating oil supply function, a sealing device ( | 03-04-2010 |
20100038864 | SEALING DEVICE - A sealing device with a side lip contacting with a surface angled relative to its axis in which the cross sectional shape of the side lip is optimized. Where the thickness of the tip end ( | 02-18-2010 |
20100038863 | SEALING DEVICE - A sealing device in which oil (O) is supplied by ejection to a sealing device body ( | 02-18-2010 |
20100036039 | Fluororubber Composition, Crosslinked Fluororubber Product, Process For Producing The Crosslinked Fluororubber Product, And Crosslinked Fluororubber Product For O-Rings - [Problem] To provide a fluororubber composition that does not suffer from deposition, during extrusion, of a talc component contained in a heat- and low-temperature-resistant colorable fluororubber, that is capable of providing products having performance equal to that of conventional mass-produced materials, and that is capable of substantially reducing the rejection rate in the preparation of green stock; and a process for producing a crosslinked fluororubber product. | 02-11-2010 |
20100024195 | Process for Production of Gaskets - The invention provides a process for producing gaskets that is capable of improving the wettability of the metal surface to thereby enhance the tackiness when rubber is anchored to a metal core material without using an adhesive. | 02-04-2010 |
20100007090 | SEALING DEVICE - To secure stability of the stacked sealing devices, a magnetic encoder-equipped sealing device has the slinger attached to either of two relatively rotating members and the lip seal attached to the other, the slinger has a magnetic encoder at one end face in the axial direction, the lip seal is formed by attaching a seal lip to an attachment ring and is slidably in contact with the slinger, an adhesion prevention projection, formed from a rubbery elastic body, is provided on the other end face in the axial direction of the attachment ring to prevent mutual adhesion of sealing devices when they are stacked, and the adhesion prevention projection ( | 01-14-2010 |
20090326122 | Silicone Rubber Composition - A silicone rubber composition, which comprises 100 parts by weight of a vinyl group-introduced methylfluoroalkylvinyl-based silicone rubber obtained by copolymerization of a dimethylsiloxane copolymerization unit as the main component with 5-50% by mole of a methylfluoroalkylsiloxane copolymerization unit, and 0.2-8 parts by weight of an organic peroxide. When silica is used as a filler, it is desirable to use a surfactant for silica, and water at the same time. The present silicone rubber composition can give distinguished low-temperature characteristics and blister resistance, and thus can be used for seal materials directed to high-pressure hydrogen gas storage tanks, for example, to storage under 70 MPa, and particularly as suitable vulcanization-molding materials for O-rings, packings, gaskets, oil seals, valves, etc. High-pressure gases for storage are not limited only to hydrogen gas, but also to oxygen gas, nitrogen gas, helium gas, etc. likewise. | 12-31-2009 |
20090322037 | Seal Ring - There is provided a seal ring that makes it possible to improve attachability and sealability. | 12-31-2009 |
20090322032 | SEALING DEVICE - In a sealing device ( | 12-31-2009 |
20090302549 | Lip Type Seal - A resin lip type seal ( | 12-10-2009 |
20090283972 | BONDED PISTON SEAL - A bonded piston ring, which comprises a metal ring, and a rubbery elastomer seal as vulcanization-bonded thereto except the sliding site along which a mating seal member slides, where the rubbery elastomer seal in partially bonded to the metal ring through an adhesive layer, wherein the adhesive layers comprise (a) an underlayer adhesive layer comprising a phenol resin and an epoxy resin, and (b) an overlayer adhesive layer comprising a phenol resin, a halogenated polymer, and a metal oxide. Not only the distinguished initial adhesiveness, but also the distinguished water-resistance can be obtained by providing (a) the underlayer adhesive layer of the afore-mentioned components and (b) the overlayer adhesive layer of the afore-mentioned components. | 11-19-2009 |
20090267595 | MAGNETIC ENCODER - A magnetic encoder, which is formed annularly of a magnetic rubber material, is magnetized to be multipolar in the circumferential direction and has a detected surface read by a magnetic sensor, is provided with a three-dimensional shape ( | 10-29-2009 |
20090267306 | Lip Type Seal - To provide a resin lip type seal having first inner and outer peripheral seal lips slidably contacting with an operation member and a fixed member and a second inner peripheral seal lip formed at the second sealed fluid side, wherein second inner peripheral seal lip is not forcibly bent and reduction in fastening due to creep can be compensated, a second inner peripheral seal lip ( | 10-29-2009 |
20090258980 | HYDROGENATED NBR COMPOSITION - A hydrogenated NBR composition, which comprises 100 parts by weight of a blend of a hydrogenated NBR having an acrylonitrile content of 25-44% by weight and an iodine number of 32-65, with such an amount of an NBR as to make the iodine number of the blend of 40-160, 2-23 parts by weight of an ester-based plasticizer, and 0.5-10 parts by weight of an organic peroxide, preferably which further contains 0.5-10 parts by weight of a polyfunctional, unsaturated compound, has a distinguished cost performance because of blending an expensive hydrogenated NBR with a cheap NBR, can give cross-linked products having a distinguished oil resistance (resistance to such oil as No. 3 oil and other general-purpose, commercially available engine oil, etc.) and a distinguished fuel oil resistance (resistance to such fuel oil as fuel oil C, and other general-purpose, commercially available gasoline, etc.) and thus can serve as suitable molding materials for intake manifold gaskets of automobile engine or automobile sealing parts, particularly sealing parts around engines and transmission systems. | 10-15-2009 |
20090256316 | Sealing Device - To prevent grease applied to seal lips of sealing device from adhering to an attaching ring of an adjacent sealing device when the sealing devices are stacked in the axial direction, a sealing device ( | 10-15-2009 |
20090256315 | SEALING DEVICE - To provide a sealing device in which a spring retainer portion integrally provided on a metal ring is neither worn away nor damaged, whereby it is made possible to achieve an easy production and a cost reduction, a sealing device is constructed by a cylindrical metal ring, a seal lip provided on one end of the metal ring and made of a rubber-like elastic material, a spring retainer portion provided on the other end of the metal ring, and a spring seated on the spring retainer portion, and the spring retainer portion is provided with an engaging means for preventing a rotating motion of the spring. | 10-15-2009 |
20090250261 | SEAL STRUCTURE - To provide a seal structure which has a seal member integrally formed on a flexible wiring board without peeling off an insulating layer (top coat) of the flexible wiring board, has excellent sealing performance and can be manufactured at a low cost, the seal structure is composed of a housing, to which the flexible wiring board is inserted, and the seal member, which is integrally formed with the flexible wiring board and seals a gap between the housing and the flexible wiring board, the flexible wiring board is composed of a base FPC composed of an elastic material, a patterned copper foil and an adhesive layer, conductive electromagnetic shielding layers formed on surfaces of the base FPC, and insulating layers covering surfaces of the electromagnetic shielding layers, and the seal member is integrally formed directly on the insulating layers by using a self-adhesive liquid rubber. | 10-08-2009 |
20090242474 | Hollow fiber membrane module | 10-01-2009 |
20090235815 | PISTON WITH BUILT-IN SEAL - A piston with a built-in seal comprises a piston body ( | 09-24-2009 |
20090230630 | Lip type seal - To provide such a resin lip type seal ( | 09-17-2009 |
20090230629 | PTFE Resin Composition - A PTFE resin composition, which comprises PTFE resin, and metal carbide powder having a Vickers hardness of 1,200HV, or more, and which preferably further contains an inorganic filler other than the metal carbide powder, for example, carbon fibers, glass fibers, etc., has an improved abrasion resistance, when molded into resin seal rings, etc., by reducing a self-abrasion amount of the resin against hard mating metals having a rough surface (Rz of about 6.3 to about 9.0 according to JIS B0601-1994), and by polishing the mating material roughness rapidly. | 09-17-2009 |
20090206553 | Sealing Device - A sealing device ( | 08-20-2009 |
20090200750 | Oil Seal and Process for Producing the Same - To maintain an excellent friction reducing function over a long period of time, with having excellent abrasion resistance and excellent sealing properties, the oil seal has a seal lip ( | 08-13-2009 |
20090174153 | Mold for Gasket, Method for Manufacturing the Gasket, and Gasket - This invention provides a mold for a gasket, which can render the planar shape of a mold for integral molding of a large-diameter gasket as small as possible to reduce the size of the manufacturing equipment and, at the same time, by virtue of integral molding, does not require labor and time in the manufacture thereof and does not cause a lack of strength in the connecting part. To this end, a mold ( | 07-09-2009 |
20090174151 | Sealing Device - A sealing device comprises a stationary-side installation ring ( | 07-09-2009 |
20090166982 | Plunger seal for pump - There is provided a plunger seal ( | 07-02-2009 |
20090166981 | Plunger seal for pump - There is provided a plunger seal ( | 07-02-2009 |
20090153136 | Pulsar Ring for Rotary Encoder - A pulsar ring for a rotary encoder has a mounting ring ( | 06-18-2009 |
20090151799 | CHECK VALVE - A check valve in which a valve opens to allow a fluid to flow out when a differential pressure of a pressure in one area with respect to that in the other area becomes large and remains closed even when the pressure in the other area becomes higher than that in the one area includes a lip in contact with an opposed face provided at a position opposite to the check valve, wherein the lip is constructed so as to be in contact with the opposed face in such a way that the tip of the lip is bent to a side of the other area and a satin finish is given to the whole area of a surface of the lip that could be brought into contact with the opposed face. | 06-18-2009 |
20090140498 | Sealing Device - To avoid strict control of flatness of a pressing portion, while keeping stability, in a sealing device comprising a metal ring and a seal portion, a metal ring ( | 06-04-2009 |
20090140496 | Sealing Device - For reliable assembling, a sealing device has an oil seal ( | 06-04-2009 |
20090133768 | Metal Bellows Accumulator - To prevent breakage by abnormal deformation when seal function of a seal section becomes ineffective to cause pressurized liquid remaining in the liquid chamber to be lost, a metallic bellows-type accumulator having a metal bellows, a bellows cap, an outer gas chamber and an inner liquid chamber, in a shell is structured to have a bellows constructed such that, when pressure in the liquid chamber ( | 05-28-2009 |
20090130245 | Metal Mold For Blow Molding - A metal mold for blow molding which may prevent a mold biting while maintaining a blowing performance and may mold a thermoplastic-elastomer article having a stable shape. In a blow molding metal mold provided with an annular loosely surrounding part for loosely surrounding an end part of a parison, a clearance between an outer peripheral surface of the end part and an inner peripheral surface of the loosely surrounding part at a parting line of the metal mold is larger than a clearance at the other parts than the parting line. | 05-21-2009 |
20090127796 | Sealing device - To improve sealing performance by a labyrinth to inhibit entry of dust, a sealing device ( | 05-21-2009 |
20090121443 | Sealing Device - To reduce a shaft insertion load and prevent extrusion of a seal ring to the low pressure side, a sealing device ( | 05-14-2009 |
20090118404 | Rubber Composition and Used Thereof - It is an object of the present invention to provide a rubber composition which has been improved in mechanical properties with maintaining excellent various properties and is favorably used for a fuel cell sealing member, a hard disc drive top cover gasket member and an electric wire connector sealing member. It is another object of the present invention to provide main bodies mounted with the above respective members obtained by the use of the rubber composition. The rubber composition of the invention comprises a specific ethylene/α-olefin/non-conjugated polyene copolymer in which the non-conjugated polyene is a norbornene-based compound, a specific SiH group-containing compound, and if necessary, an organopolysiloxane. Such a rubber composition of the invention is excellent in mechanical properties and can be particularly favorably used for a fuel cell sealing member, a hard disc drive top cover gasket, an electric wire connector sealing member, etc. | 05-07-2009 |
20090115138 | Gasket - A first gasket | 05-07-2009 |
20090096444 | Pulsar Ring of Magnetic Rotary Encoder - To hold a pulsar ring ( | 04-16-2009 |
20090088522 | EPDM Composition - The present invention is to provide an EPDM composition from which molding material excellent in low outgassing property and low gas permeability (low water vapor permeability) can be obtained even if the EPDM composition contains a mass of plasticizer blended in. | 04-02-2009 |
20090085306 | Gasket - A gasket having a cross sectional shape longer than it is wide and is prevented from falling over and buckling. The gasket | 04-02-2009 |
20090062445 | Hydrogenated NBR Composition - A hydrogenated NBR composition, which comprises 100 parts by weight of a hydrogenated NBR having an acrylonitrile content of 25-44% by weight and an iodine number of 32-65, or a blend of the hydrogenated NBRs themselves, 2-23 parts by weight of an ester-based plasticizer, and 0.5-10 parts by weight of an organic peroxide, and preferably further contains 0.5-10 parts by weight of a polyfunctional unsaturated compound, can give molding products having distinguished oil resistance and fuel oil resistance as well as distinguished heat resistance and cold resistance, and thus can be used as suitable molding materials for intake manifold gaskets of automobile engines. | 03-05-2009 |
20090062444 | Hydrogenated NBR Composition - A hydrogenated NBR composition, which comprises a 100 parts by weight of hydrogenated NBR having an acrylonitrile content of 25-45% by weight and an iodine number of 20-65, or a blend of the hydrogenated NBRs themselves, 10-70 parts by weight of furnace black having a nitrogen adsorbable specific surface area of 30-130 (×10 | 03-05-2009 |
20090056871 | METHOD FOR PRODUCING STEEL COMPONENT INTEGRALLY HAVING RUBBER PORTION - To provide a method for producing a steel component integrally having a rubber portion without necessity to remove by a lathe turning a film formed on the surface of a steel component by a chemical conversion treatment and without deterioration of water-resistant adhesive property and anti-corrosion property during production steps due to omission of the chemical conversion treatment, the method for producing a steel component integrally having a rubber portion includes the steps of subjecting a surface of a steel component to a chemical conversion treatment with iron phosphate as a ground treatment (step S | 03-05-2009 |
20090051354 | PULSAR RING FOR MAGNETIC ENCODER - A pulsar ring for a magnetic encoder comprises an annular holder attached to an outer periphery of a rotary side member, and a pulsar main body made of a rubber-like elastic material mixed with magnetic powder, magnetized to have multiple poles, and adhered integrally to the holder, wherein a plurality of notches are formed at predetermined intervals in a circumferential direction on a peripheral edge of the holder, and the pulsar main body is adhered to the holder so that a peripheral edge of the pulsar main body covers the peripheral edge including the notches of the holder, thereby to improve adhesive strength between the annular holder and pulsar main body. | 02-26-2009 |