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SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL)

Subclass of:

277 - Seal for a joint or juncture

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
277500000 Circumferential contact seal for other than piston 334
277358000 Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.) 149
277409000 Close proximity seal (e.g., contactless, fluent, etc.) 123
277434000 Piston ring or piston ring expander or seat therefor 116
277355000 Brush seal 51
277346000 Diverse and distinct dynamic seals 46
277354000 Helically threaded part 2
20100295249Ball screw lubricative sealing device - The invention provides a ball screw lubricative sealing device having a simplified lubrication mechanism. It is attachable to an installed standard ball screw nut, capable of retaining larger amount of lubricant and long supply of lubricant to the contacting screw parts, and further includes a sealing function. It includes: generally cylindrical case members having attachment part to be attached to both ends of a screw nut, respectively; plural thin seal plates made of lubricating oil impregnated felt-like fiber material which is a three-dimensionally crosslinked plastic fiber and resilient rubber members, and having a hole each and fitted inside said case member in such a state that they circumferentially overlap with each other, the hole having a shape corresponding to a lateral cross-sectional shape of a screw groove of ball screw shaft; and a plastic wiper fitted with a space from the thin seal plates inside each of the case member.11-25-2010
20100301565Ball screw lubricative sealing device - The invention provides a ball screw lubricative sealing device having a simplified lubrication mechanism. It is attachable to an installed standard ball screw nut, capable of retaining larger amount of lubricant and long supply of lubricant to the contacting screw parts, and further includes a sealing function. It includes: generally cylindrical case members having attachment part to be attached to both ends of a screw nut, respectively; plural thin seal plates made of lubricating oil impregnated felt-like fiber material which is a three-dimensionally crosslinked plastic fiber and resilient rubber members, and having a hole each and fitted inside said case member in such a state that they circumferentially overlap with each other, the hole having a shape corresponding to a lateral cross-sectional shape of a screw groove of ball screw shaft; and a plastic wiper fitted with a space from the thin seal plates inside each of the case member.12-02-2010
277357000 For rotary piston 1
20090194949Shaft for viscous sealant systems - A sealing system for sealing between an aperture of a machine housing and a rotating machine-shaft protruding through the aperture, said sealing system comprising: (i) a stuffing box for encasing the aperture of the machine housing and a segment of said shaft and, (ii) a viscous fluid type sealant within said stuffing box, wherein the shaft is concentric about its axis of rotation and said segment has at least one variation in its effective external diameter thereby increasing the surface area thereof, in contact with the liquid sealant.08-06-2009
277356000 For journal box (e.g., railway car journal, etc.) 1
20080203672PRESSURE-ENERGIZED SHAFT SEAL - A generally cylindrical shaft seal with an axial opening is disclosed having annular “lips” or “legs” on one or both ends that are separated by a fluid-filled cavity. The seal is adapted to seal between a support or housing holding the seal and a generally cylindrical shaft passing axially through the seal. Fluid, under pressure, may enter the cavity and urge the lips or legs in a radial direction which enhances the sealing engagement of the seal member to the shaft and the housing. In certain embodiments, the seal has a concave inner surface to minimize the contact area (and hence the friction) between the seal and the movable shaft. The outer circumference of the seal may be equipped with one or more O-ring seals for sealing to the housing or support. The seal may be fabricated from natural or synthetic polymers, metal or composite materials.08-28-2008
Entries
DocumentTitleDate
20090194948Locking Joint Seal - A locking joint seal includes a ring-shaped body made from poly tetra fluoroethylene and having a first end and a second end. The first and second ends each include mutually engageable first and second locking features. The first locking feature including a first axially extending portion overlapping a second axially extending portion of the second locking feature in an assembled condition.08-06-2009
20100044966COUPLING GUARD SYSTEM - A guard system for a coupling that connects a first component to a second component in a pressurized machinery system includes a coupling guard moveable between an open position, which allows access to an internal region of the coupling, and a closed position, which forms a seal surrounding the coupling from the first component to the second component. The system also includes a guide for directing movement of the coupling guard.02-25-2010
20130056936METHOD AND DEVICE FOR PRODUCING SEALING RINGS - The invention relates to a method for producing sealing rings open to the outside or to the inside, which method comprises the steps of providing a tube, arranging the wall of the tube between at least one first roller that is parallel to the tube and has a first outside contour, and at least one second roller that is parallel to the tube and has a second outside contour; carrying out a relative movement of the at least one first roller and the at least one second roller towards each other; forming at least one sealing ring by a relative movement of the wall of the tube between the at least one first roller and the at least one second roller, wherein the cross-section of the at least one sealing ring is defined substantially by the space between the first and second outside contours; and severing the at least one sealing ring from the tube. The invention also relates to a device for carrying out the method and to a selling ring produced in said manner.03-07-2013
20090267304Flight surface seal - A seal for sealing a gap between a first (10-29-2009
20130062833DEVICE FOR FIXING ELASTIC ELEMENTS - The invention relates to a device for sealing a gap between parts that are moved relative to one another, namely a fixing part, for fixing at least one elastic sealing element at an edge thereof, and a stop part along which another edge of at least one elastic sealing element runs, wherein the fixing part comprises, running along the gap, at least one groove in which are inserted one or more anchoring parts that engage through or around the sealing element and/or a retaining element that retains same.03-14-2013
20130134679NON-CONTACTING SEAL ARRANGEMENT, ELECTROMECHANICAL SYSTEM HAVING A NON-CONTACTING SEAL ARRANGEMENT, AND METHOD OF FABRICATING A NON-CONTACTING SEAL ARRANGEMENT - Disclosed is a non-contacting seal arrangement, an electromechanical system having a non-contacting seal arrangement, and a process of fabricating a non-contacting seal arrangement. The non-contacting seal arrangement includes a shape-memory alloy portion, a non-contacting seal, and an ingress gap. The ingress gap is between the non-contacting seal and the shape-memory alloy portion, between a surface of an electromechanical system and the non-contacting seal, or between the surface of the electromechanical system and the shape-memory alloy. An increase in temperature expands the non-contacting seal and the shape-memory alloy portion substantially maintains the ingress gap. The electromechanical system includes a rotating component and a surface extending around at least a portion of the rotating component and forming the ingress gap. The process includes securing the shape-memory alloy portion, securing the non-contacting seal, and forming the ingress gap.05-30-2013
20090066031Compound sliding seal unit suitable for atmosphere to vacuum applications - The present invention is a compound sliding seal unit of markedly reduced size and height dimensions which is employed as a discrete assembly for both the passage across and the at-will height adjustment of a mounted, rotatable shaft which extends from the atmospheric environment portion into the vacuum environmental portion of an ion implanter apparatus. The extended, rotatable shaft is typically fashioned as either a rotatable hollow tube or conduit (suitable for the passage of electrical components) and/or as a rotatable support suitable for the mounting of a pivotal scanning radial arm translation system.03-12-2009
20090315270Seal Arrangement - The invention relates to a sealing arrangement for an internal combustion engine (12-24-2009
20120292857Multiple Stiffness Seal for Imaging Component Surfaces - An end seal for use in an image forming apparatus that provides increased contact pressure using projecting ribs at nip locations formed between an end of a roll and the ends of other components such as a doctor blade or flap seal and lower contact pressure along the end of the roll. Contact pressure may be varied by changing the thickness along portions of the projecting ribs or the use of transverse ribs between each of the projecting ribs and a second surface of the end seal.11-22-2012
20120292856BLADE OUTER SEAL FOR A GAS TURBINE ENGINE HAVING NON-PARALLEL SEGMENT CONFRONTING FACES - A blade outer air seal for a gas turbine engine includes an arcuate first seal segment and an arcuate second seal segment. The first seal segment extends circumferentially to a first confronting face. The second seal segment extends circumferentially to a second confronting face. The first confronting face is positioned adjacent the second confronting face defining a gap therebetween. The confronting faces are radially non-parallel at a first engine operating point where each seal segment has a first temperature distribution profile and a first pressure distribution profile. The confronting faces are substantially radially parallel at a second engine operating point where each seal segment has a second temperature distribution profile and a second pressure distribution profile, which second profiles are different than the first profiles.11-22-2012
20080258402Sealing device for joint section of robot and articulated robot having the same - A sealing device provided to a joint section of a robot. The sealing device includes overlapped seal portions having a multi-stage configuration, provided for a driving mechanism incorporated into the joint section. The overlapped seal portions include a first seal portion including a first contact seal element sealing a first inter-member gap defined adjacent to a lubricant retaining section provided in the driving mechanism; and a second seal portion arranged outside the first seal portion and including a second contact seal element sealing a second inter-member gap defined in a circumferential wall of the joint section, the circumferential wall defining an accommodation space for accommodating the driving mechanism.10-23-2008
20100194051BELT DISCHARGER - The invention relates to a belt discharger (08-05-2010
20080309016SEALING DEVICE - To prevent falling away of a backup ring (12-18-2008
20130147122SEALING MEMBER COMPRISING WOVEN FABRIC - A sealing member for preventing leakage of powder from a rotating body, can prevent escape of powder under low load and with little yarn, which has excellent wear resistance.06-13-2013
20090096174BLADE OUTER AIR SEAL FOR A GAS TURBINE ENGINE - An air seal assembly includes a featherseal engaged between adjacent turbine engine components to close a gap therebetween. The featherseal includes a first lateral tab and a second lateral tab which defines a tab space therebetween. The tab space locks the featherseal into the turbine engine component to prevent fore-aft movement thereof.04-16-2009
20100308541STRIP-SEALING GATE - The invention relates to a strip sealing gate (12-09-2010
20110133411SEAL06-09-2011
20120153574CHAMBER INCLUDING A SEALED CONNECTION ASSEMBLY SLIDING INSIDE A TRANSLATION PLANE - A chamber includes a sealed connection assembly sliding inside a translation plane, having two rigid parts, one of which comprises a groove. A planar seal and at least one O-ring seal are positioned in the groove, with the O-ring seal under the planar seal. An active surface of the planar seal, which projects above the groove, is compressed against a planar bearing surface of the other rigid part. The chamber can be used in a device for applying a plastic film onto a spectacle lens, in order to move the lens inside a variable-pressure space.06-21-2012
20100259011SEAL RING OF A MECHANICAL SEAL ASSEMBLY - The invention relates to a seal ring of a mechanical seal assembly, comprising a base body made of a material including at least one carbide material and a coating provided at the base body and creating a sliding surface, said coating consisting of a diamond material. The inventions is characterized in that the base body is formed of a two-component material by embedding particulate regions made of a diamond material compatible with the diamond material of the coating into the material comprising at least one carbide.10-14-2010
20120080850WATERPROOFING DEVICE FOR AN ACTUATOR - Device for sealing an actuator includes a drive shaft (04-05-2012
20120139185SEAL MECHANISM - According to an aspect of the present invention, there is provided a seal mechanism, including: a plate spring having a main body portion which has a curved shape and a pair of hook portions which are formed by bending the main body portion; and a seal member having a seal surface and a pair of projecting portions which are formed on an opposite side of the seal surface to catch the hook portions.06-07-2012
20110148045HOLLOW SEALING STRUCTURE AND MANUFACTURING METHOD FOR HOLLOW SEALING STRUCTURE - A manufacturing method for a hollow sealing structure, includes, a process for filling a recessed portion in a principal surface of a substrate with a first sacrificial layer, a process for forming a functional element portion on the principal surface of the substrate, a process for forming a second sacrificial layer on the functional element portion so as to be connected to a part of the first sacrificial layer, a process for forming a covering portion over respective surfaces of the first and second sacrificial layers, a process for circulating a fluid for sacrificial layer removal through an opening in the covering portion in contact with the first sacrificial layer, thereby removing the first and second sacrificial layers, and a process for closing the opening.06-23-2011
20130020769Sealing Member and Its Manufacture - A sealing member is obtained by molding a carbon fiber composite material (01-24-2013
20110272890FIRESEAL - A fireseal for sealing around a cylindrical shaft or pipe. The fireseal is helical and has an expanded cross-section in a central portion intermediate its ends.11-10-2011

Patent applications in class SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL)

Patent applications in all subclasses SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL)