| NOK CORPORATION Patent applications |
| Patent application number | Title | Published |
|---|
| 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 |
| 20090039010 | Hollow Fiber Membrane Module, and Method for Producing the Hollow Fiber Membrane Module - The structure can be made simple, and the reuse of a housing can be attained. | 02-12-2009 |
| 20090038907 | CANCEL PLATE - In order to prevents a crack from being generated in an end portion of stoppers ( | 02-12-2009 |
| 20090038906 | SEAL INTEGRAL TYPE PISTON - To maximize pressing area of a clutch pressing portion ( | 02-12-2009 |
| 20090032366 | PISTON FOR AUTOMATIC TRANSMISSION - To satisfy sealing ability and separation load between a seal ring and a piston main body | 02-05-2009 |
| 20090030133 | NBR Composition - An NBR composition, which comprises NBR, and white carbon having a specific surface area (BET method) of 30-110 m | 01-29-2009 |
| 20090018294 | Terminally Iodized Polyfluoroalkane Oligomer and Process for Producing the Same - A terminally iodized polyfluoroalkane oligomer represented by the following general formula: | 01-15-2009 |
| 20090014965 | Sealing material - A sealing material, which comprises a curing product of a composition comprising (A) an acrylic polymer having at least one alkenyl group capable of undergoing hydrosilylation reaction, (B) a hydrosilyl group-containing compound and (C) a hydrosilylation catalyst as essential components, is suitable for use as cam cover seals and oil pan seals for automobile engines, fuel cell cooling medium seals, automobile wire harnesses seals, HDD cover gasket or vibration-insulating HDD cover gasket seals, etc. | 01-15-2009 |
| 20090008885 | Waterproof Gasket - A waterproof gasket that ensures easy handling and maintains desirable sealing capability between two members of a resin material made housing of a mobile phone, the waterproof gasket being in contact with the members, is provided. The waterproof gasket to be fitted between the members as constituents of the electronic appliance housing comprises a gasket main body made of a rubbery elastic material and a surface layer resulting from treatment of the surface of the gasket main body with a reactive surface treating agent. | 01-08-2009 |
| 20080309016 | SEALING DEVICE - To prevent falling away of a backup ring ( | 12-18-2008 |
| 20080276799 | ALUMINUM PISTON WITH AN INCORPORATED SEAL - In order to reduce product weight, enhance design freedom, reduce production cost and improve productivity, an aluminum piston with an incorporated seal is provided, the piston comprising an aluminum die-cast piston main body ( | 11-13-2008 |
| 20080272558 | SEALING DEVICE - A sealing device in which a main seal lip used for a shock absorber is formed in a one-stage structure, wherein lattice-shaped projections that include a plurality of projections extending along a sliding direction and a plurality of projections extending along a direction perpendicular to the sliding direction are formed on a sliding surface of the main lip at a position apart a specified distance from a lip edge. | 11-06-2008 |
| 20080272556 | SEALING DEVICE - A sealing device in which a main seal lip used for a shock absorber is formed in a one-stage structure, wherein a satin finishing portion is formed on a sliding surface of the main lip at a position apart a specified distance from a lip edge. | 11-06-2008 |
| 20080203673 | Sealing Device With Sound Insulating Seal - To improve performance without increasing size, a sealing device comprises a seal body ( | 08-28-2008 |
