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| Number | Title | Issue Date |
| 7828301 | Self-energized backup ring for annular seals An apparatus is disclosed in one embodiment of the invention as including an annular seal (e.g., an o-ring) and a backup ring to provide support to the annular seal. A gland is provided to accommodate the backup ring and the annular seal. The gland has a contact sur... | 11/09/2010 |
| 7793944 | Sealing device In a sealing device (1) installed in an installation groove (4) provided in one member (2) of two members (2, 3) facing to each other so as to be brought into close contact with the other (3), the sealing device has a seal ring ( | 09/14/2010 |
| 7722053 | Outer ring and clamp-type joint for vacuum apparatus An outer ring of a clamp-type joint for vacuum apparatus is disclosed. The joint includes a base forming an outer circumferential side and a pair of brims respectively extending from the top and bottom of the base toward the center axis of the joint, the inner side ... | 05/25/2010 |
| 7520511 | O-ring and clamp-type joint for vacuum apparatus An O-ring used in a clamp-type joint for a vacuum apparatus, which engages with a concave groove in the outer circumference edge of the center ring and is sandwiched by an outer ring having a U-shaped outer circumference, wherein the radius of the circular arc in th... | 04/21/2009 |
| 7458587 | Sealing joint with laminated internal structure for very high temperatures A sealing joint comprises, compressed between two parts, a stack of flexible strips separated by offset supports (9); an envelop (1) surrounds this structure (7) and ensures its sealing. Under compression, the strips distort around the supports ... | 12/02/2008 |
| 7373973 | Packer element retaining system A bridge plug having a segmented backup shoe, and at least one split cone extrusion limiter, the extrusion limiter comprising a two part conical retainer positioned between packer elements and the segmented backup shoe to block packer element extrusion though spaces... | 05/20/2008 |
| 7364167 | Injector The invention relates to an injector for a common rail injection system of an internal combustion engine, having an injector housing, a valve element disposed in the injector housing, a sealing ring acting as a seal between a high-pressure region and a low-pressure ... | 04/29/2008 |
| 7314590 | Method of preparing a coated molded plastic article A gasket (1) having a reversibly compressible lower portion (17), and an upper portion (14) having at least one upwardly extending extension, is described. The upper portion (14) of the gasket (1) includes a first (34) and o... | 01/01/2008 |
| 7252293 | Two-part gasket for pipe-to-pipe connections A gasket for pipe-to-pipe connections, which is closely received within a rectangular-shaped annular groove in the bell end of a pipe, and provides a compressive, fluid-tight seal with the spigot end of another pipe. The gasket includes a two-part body having a subs... | 08/07/2007 |
| 7201382 | Sealing element The present disclosure relates to a sealing element for a pressed connection that includes an essentially ring-shaped body constructed of elastic material. Also included is at least one sealing edge formed on an interior side and an exterior side of the ring-shaped ... | 04/10/2007 |
| 7100925 | Pressure energized metallic seal A pressure-energized, annular metallic seal is provided that includes a central annular portion and a pair of annular leg portions extending from the central portion. Each leg portion includes a convex sealing surface lying in sealing plane. One of the leg portions ... | 09/05/2006 |
| 7059612 | Gasket A gasket comprises a ring member made of a metal material, and a covering section composed of an elastic material, wherein the covering section integrally covers side surfaces and an inner circumferential surface of the ring member respectively. First to third protr... | 06/13/2006 |
| 7055829 | Antiextrusion device An elastomeric seal having an antiextrusion device molded integrally into or onto the low pressure side of the seal. The antiextrusion of a corrugated strip into an elastomeric seal. One embodiment of the invention has the strip positioned with the midplane of its c... | 06/06/2006 |
| 7029013 | Seal member, and substrate storage container using the same A seal member for a substrate storage container disposed between an opening end portion of a container body and a cover, which container body and cover form the container and which container body has the opening end portion and stores substrates, is disclosed. The s... | 04/18/2006 |
| 7025358 | Metallic gasket A metallic gasket comprising a base plate having a first thickness-increased portion 3 formed at a peripheral edge on a combustion chamber opening 3 side of a base plate, and a first seal line SL1 and a second seal line SL2 arranged on th... | 04/11/2006 |
| 7004474 | Seal for an endless track A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross se... | 02/28/2006 |
| 6979028 | Pipe joint A pipe joint is made up of a hollow cylindrical joint body made of an elastic material with a prescribed length, a circular flange embedded into each of the ends of the joint body, through holes provided axially at prescribed intervals in the direction of the circum... | 12/27/2005 |
| 6957814 | Metal gasket Disclosed is a metal gasket which is capable of securing a sealing properties by strongly pressing a portion of a bead thereof, which faces a portion where a pressuring surface of one joining surface of one of an intake manifold and an EGR plate does not exist, to t... | 10/25/2005 |
| 6945098 | Hydrocyclone wear-detection sensor Wear-detection sensor has a body of electrically insulating material with an opening through which a flowable substance can pass, and one or more electrical conductors surrounding the opening and adapted to undergo a discernable change in conductivity as the insulat... | 09/20/2005 |
| 6921090 | Diaphragm for sealing openings in pressure vessels An improved diaphragm for use with a gasket to prevent leakage of a pressurized fluid. The diaphragm has an internal groove which uses strong spring back and the pressure of the fluid to increase the gasket seating load, thereby providing a self-energizing seal whic... | 07/26/2005 |
| 6869081 | Constant seating stress gasket system A gasket system for sealed interfaces utilizes a carrier ring having inner and outer compression stops to account for and control flange rotation effects in order to achieve a uniform and constant gasket seating stress across the sealing region. The inner compressio... | 03/22/2005 |
| 6857638 | Gasket for sanitary fittings A gasket for establishing a seal between the flanges of sanitary pipe fittings having a lumen of pre-determined diameter which comprises an O-ring portion of elastomeric material and an incompressible ring member bonded to said O-ring portion, said ring member havin... | 02/22/2005 |
| 6814358 | Sealing array A sealing arrangement (14) has a housing gap, to be sealed, between two components (15, 16) and a seal (1) which consists of two interconnected sealing components (2, 3), a first extrusion-resistant, deformable sealing component (2... | 11/09/2004 |
| 6685197 | Silicone rubber gasket with perforated metal core and method A valve cover gasket has a perforated central core of metal including protrusions extending from planar sides of the core. Silk screened on each side of the core is a silicone foam rubber layer adapted to replace traditional cork gasket structures used fo... | 02/03/2004 |
| 6663112 | Sealing device A sealing device for sealing a joint which is constituted by two sealing surfaces facing each other. The sealing surfaces are displaceable in parallel in relation to each other. The sealing device comprises a sealing element consisting of elastomeric mate... | 12/16/2003 |
| 6631910 | Elastic metal gasket with offset projecting parts The open circular section gasket is not deformed under flattening while nevertheless ensuring the leaktightness of the two spaces to seal. Each contact surface (16) is slightly inclined and has a slightly offset projecting part (15) such that the summits of th... | 10/14/2003 |
| 6623047 | Tube coupling Couplings and coupling components which prevent relative rotation between tubular members when break away torque forces are applied to the tubular members. In one embodiment, the invention is a locking ring for preventing relative axial rotation between t... | 09/23/2003 |
| 6588767 | Mat gasket for fluid conduits A mat gasket for use with a tapping saddle is disposed about an aperture in a main fluid conduit and is further disposed between and in sealed contact with the main fluid conduit and an outer sleeve member. The mat gasket includes an aperture aligned with... | 07/08/2003 |
| 6547253 | Gasket attachment structure for refrigerant-seal In an attachment structure of a gasket for a refrigerant-seal, both first and second connection members are disposed to define a seal space by first and second opposite surfaces and first and second wall surfaces, and the gasket having a beam portion is d... | 04/15/2003 |
| 6499744 | Pipe gasket with dual purpose tail The present invention is a pipe sealing gasket designed for receipt within a bell pipe groove, the bell pipe also having an inside surface. The gasket fitted within the groove allows a spigot pipe having an outside surface to be inserted therein to form a... | 12/31/2002 |
| 6457726 | Stamped sealing arrangement for a flat flanged joint The sealing arrangement for a flat flanged joint comprising a preferably metallic base body 1 has bearing surfaces 7, 7' on each of its two sides for ring-shaped supports (11, 12) made of a soft material, the bearing surfaces (7, 7') being flat over a lar... | 10/01/2002 |
| 6402159 | Dielectric gasket A dielectric gasket (10) includes an outer annular disk (50) and an inner annular disk (56) both formed, at least in part, from electrically non-conducting materials. A seal (54) is disposed between an inside diameter (58) of the outer annular disk (50) a... | 06/11/2002 |
| 6371224 | Threaded spacer An improved thin walled threaded spacer for use in preventing thread galling in adjacent sections of drill pipe in a drill string is formed by mechanically deforming a strip of copper/beryllium alloy containing 2% beryllium to form a preform having a holl... | 04/16/2002 |
| 6361052 | Seal for preventing leakage of fluids between irregular areas on mating surfaces A seal for preventing the flow of fluid under high pressure, between a carrier and a mating element adapted to engage the carrier is provided by a resilient elastomeric sealing element which is disposed in an arcuate groove in the carrier and deformed whe... | 03/26/2002 |
| 6357759 | Jacket seal In order to achieve constantly stable, high seal performance without requiring high machining accuracy, and in order to provide a reusable jacket seal, the present invention discloses a jacket seal, wherein a projection is formed at a position of a metal ... | 03/19/2002 |
| 6286839 | Ring seal including a core surrounded by a metal jacket A ring seal contains a core made from an elastic organic polymer and a metal jacket having a U-shaped sectional shape, which jacket surrounds the core to prevent transfer of a substance generated from the core into the sealed space. The seal of the presen... | 09/11/2001 |
| 6234545 | Clamped flange fitting and assembly A clamped flange pipe or tube fitting assembly includes a resilient seal ring compressed in a chamber formed by cooperating recesses in opposed flanges. The chamber and seal ring are dimensionally related in a manner to produce circumferentially continuou... | 05/22/2001 |
| 6224065 | Face seal with inner and outer seal retainer members A face seal for forming a sealed condition between two spaced, opposed surfaces. The face seal includes an inner seal retainer member and an outer seal retainer member each defining an area having an axis therethrough. The inner and outer seal retainer me... | 05/01/2001 |
| 6206376 | Apparatus and method of sealing a valve against increasing fluid pressure A double lobed seal comprises first and second annular seals, each having a radially inwardly projecting annular lobe that engages against a sealing surface of a valve element in a valve housing to seal the valve element in its closed position. With incre... | 03/27/2001 |
| 6032958 | Bi-directional pressure-energized metal seal A seal system for sealing between a pair of members is provided wherein a pair of substantially aligned walls on inner faces of the members have internal frustoconical portions. A metal ring includes a pair of lips with external frustoconical portions whi... | 03/07/2000 |
