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| Number | Title | Issue Date |
| 8104773 | Block fitting and seal structure An air conditioner system fitting is disclosed including a first seal portion with a metal material adapted to provide a primary scat, and a second seal portion attached to a free edge of said first seal portion and adapted to provide a secondary seal, wherein the f... | 01/31/2012 |
| 7967299 | Body to bonnet seal on a blowout preventer A seal comprises a metal seal ring with a first slanted mating surface for sealing engagement with a mating surface on a body and a second slanted mating surface for sealing engagement with a mating surface on a bonnet. The mating surfaces are the same angle as meas... | 06/28/2011 |
| 7905497 | Ring seal and retainer assembly The ring seal and retainer assembly includes an annularly shaped ring seal defining a radial inner surface, a radial outer surface, first and second axial end surfaces and a central bore for fluid or gas passage. A retainer is provided for affixing and positioning a... | 03/15/2011 |
| 7845647 | Multi-layer gasket or seal member A gasket or seal member constructed of elastomeric material has at least one slot extending lengthwise of the member and across its thickness at an oblique angle to the sealing faces. There may be a plurality of slots spaced apart across the width of the member. In ... | 12/07/2010 |
| 7717434 | Sealing system A sealing system has a gasket (25) which in the undeformed state can be placed against a component (1) to be sealed. In the deformed state, the gasket engages the component (1) such that the gasket (25) is captively held on the component ... | 05/18/2010 |
| 7540502 | Serpentine metal gasket A metallic seal or gasket for use in the joining of cryogenic fluid conduits, the seal or gasket having a generally planar and serpentine periphery defining a central aperture. According to a preferred embodiment, the periphery has at least two opposing elongated se... | 06/02/2009 |
| 7472911 | Gasket for pipe coupling and pipe coupling incorporating same The present invention relates to leak preventing gaskets contemplated for use with segmented pipe couplings, which include a pair of coupling segments adapted to receive a gasket which surrounds a pair of pipe ends to join pipes together or to join a nipple or fitti... | 01/06/2009 |
| 7469905 | Permanently lubricated film gasket and method of manufacture A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship.... | 12/30/2008 |
| 7455299 | Elastic sealing member for fuel tank A sub sealing projection of an elastic sealing member for a fuel tank is entirely angled, and shaped so as to satisfy 20° ≦ θ1 (angle defined by its upper surface and a cylindrical sealing portion)≦ 35°, 50° ≦ θ2(angle defined by its... | 11/25/2008 |
| 7441319 | Snap fit sealing gasket with precisely located internal retainer ring for triangular pipe grooves A pipe sealing gasket is shown which is designed to be received within a groove provided within the belled, socket end of a plastic pipe. The sealing gasket has a body formed of resilient material and has a retainer ring embedded therein which circumscribes the gask... | 10/28/2008 |
| 7393020 | Connection of two pipes and sealing ring for the connection In a pipe connection, a first pipe has a first flange of sheet metal provided with a first wall connected circumferentially to the first pipe. A second pipe has an end section shaped as a second flange. A clamp engages across the first and second flanges and has con... | 07/01/2008 |
| 7364166 | Seal and retainer for a fluid connection A seal/retainer unit (10) comprising an annular sealing gasket (12) and a plurality of retaining legs (14) extending generally perpendicularly therefrom. The sealing gasket (12) and the retaining legs (14) are formed in one piece (... | 04/29/2008 |
| 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 |
| 7360768 | Intake gasket An intake gasket to be inserted between a cylinder head and a manifold, comprising an intermediate rib member with a three-layer structure formed from a central thin metal plate and rubber layers provided on first and second sides of the central thin metal plate, fi... | 04/22/2008 |
| 7361398 | Low stress to seal ePTFE gasket material A low stress-to-seal gasket material is described. Gaskets made according to the present invention comprise at least two tapes of porous PTFE and a substantially air impermeable layer at the interface of the two tape layers. The tape layers each have a non-porous re... | 04/22/2008 |
| 7350833 | Self-aligning aseptic flanged joint A flanged joint system connects two pipes disposed along a common axis. A flange having a mating surface terminates each pipe. A gasket assembly comprising an outer annular, substantially rigid retaining ring and a peripheral alignment rim, an inner deformable annul... | 04/01/2008 |
| RE39973 | Metallic seal A metallic seal is provided that concentrates the available load over a narrow band to produce a sealing dam over a sufficient width to minimize leakage on a molecular level. The metallic seal has a first annular beam section, a second annular beam section, and inne... | 01/01/2008 |
| 7309663 | Asymmetric porous polytetrafluoroethylene membrane for clothing The present invention provides an asymmetric porous PTFE membrane for clothing having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric... | 12/18/2007 |
| 7309068 | Rubber gasket for separator of fuel cell A rubber gasket to be disposed in a compressed state between separators of a fuel cell includes a sealing portion having a sectional shape of a two-projection structure with a first projection having a curved slope of a first curvature radius (D), and a second proje... | 12/18/2007 |
| 7282097 | Slit valve door seal Embodiments of the invention generally provide a slit valve door seal. In one embodiment, a slit valve door seal includes a ring-shaped base having a center axis and at least one finger extending from the base. The finger is oriented substantially parallel to the ce... | 10/16/2007 |
| 7278639 | Edge coated gaskets and method of making same An edge coated gasket includes a base sheet made of compressible gasket material and having opposed faces and an interior edge surrounding and defining an aperture. An edge coating of polymer or other material is disposed on and seals the interior edge of the base s... | 10/09/2007 |
| 7272204 | Method and apparatus for clamping a riser brace assembly in nuclear reactor An apparatus and method are provided which are designed to structurally replace welds that attach a riser brace assembly to a jet pump riser pipe. The riser brace assembly may include an upper clamp assembly, a lower clamp assembly, and a plurality of mechanical fas... | 09/18/2007 |
| 7258942 | Multilayer compressive seal for sealing in high temperature devices A mica based compressive seal has been developed exhibiting superior thermal cycle stability when compared to other compressive seals known in the art. The seal is composed of compliant glass or metal interlayers and a sealing (gasket) member layer composed of mica ... | 08/21/2007 |
| 7234706 | Sealing system for multiple fluids A seal (301) has a first surface capable of contacting a valve cover (101) over a first fluid while a second surface, opposed to the first surface, is capable of contacting a seal seat (303). The seal (301) also has a third surface capabl... | 06/26/2007 |
| 7222406 | Methods for making a multi-layer seal for electrochemical devices Multi-layer seals are provided that find advantageous use for reducing leakage of gases between adjacent components of electrochemical devices. Multi-layer seals of the invention include a gasket body defining first and second opposing surfaces and a compliant inter... | 05/29/2007 |
| 7210846 | Thermostat housing assembly A thermostat housing assembly (10, 100) includes a housing (12, 102) having a flange (16, 106) for mounting the housing (12, 102) on a support structure and a tubular spout (18, 108) extending from the flange (16, 106) and d... | 05/01/2007 |
| 7207220 | Fluid coupling for a chromatograph A fluid coupling comprises a compliant material, a seal gland having at least one projection configured to contact the compliant material, and a cover plate configured to compress the compliant material into the gland, thus forcing the compliant material against the... | 04/24/2007 |
| 7201241 | Self relieving seal Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal... | 04/10/2007 |
| 7195289 | Fluid distribution system A fluid distribution system comprising a hollow pipe section having at least one bore extending longitudinally therethrough. At least one longitudinal boss extends along the pipe section. An end fitting comprises a body configured to be received in the bore and a sh... | 03/27/2007 |
| 7179525 | Low stress to seal expanded PTFE gasket tape A low stress to seal, unitary gasket tape is provided that is particularly suited for use in form-in-place gaskets. The gasket tape preferably comprises at least two joined porous expanded polytetrafluoroethylene (ePTFE) tapes aligned along tape side surfaces and a ... | 02/20/2007 |
| 7168707 | Method for sealing threaded pipe joints A material for sealing threaded pipe joints includes a multifilament yarn ready-coated with a joint sealing composition. The material is packaged in a dispenser from which the coated yarn may be supplied for direct application to a threaded area of a pipe. ... | 01/30/2007 |
| 7159652 | Drilling flange and independent screwed wellhead with metal-to-metal seal and method of use A drilling flange and an independent screwed wellhead provides a metal-to-metal seal that supplements the traditional elastomeric O-rings for providing a fluid seal between the drilling flange and the wellhead. The metal-to-metal seal may be achieved using a metal r... | 01/09/2007 |
| 7140618 | Socket with dual-functional composite gasket A gasketed pipe joint including a dual-functional, composite gasket, which in addition to forming a seal between a pipe bell and a spigot provides a molding surface for forming a bent retainer in the hub of the pipe or fitting. The dual-functional composite gasket c... | 11/28/2006 |
| 7137790 | Sealing structure of pump A sealing structure for an underwater pump comprises an elbow pipe having a first flange formed at an inlet thereof with an inclined inner surface; an underwater pump having a second flange formed at an outlet thereof; a guide member attached to the second flange an... | 11/21/2006 |
| 7134287 | Turbine combustor endcover assembly The endcover assembly for a combustor includes an endcover having an aperture, an insert disposed in the stepped bore opening through an internal face of the endcover, a fuel cartridge extending through the insert and aperture and a seal cover on the external face o... | 11/14/2006 |
| 7121556 | Molded plastic gasket A gasket is provided having a body including at least one service aperture and an integrally formed sealing bead portion. In an embodiment, the sealing bead portion includes a first outwardly extending bead and a first concave channel opposite the first outwardly ex... | 10/17/2006 |
| 7114522 | Adapter manifold with dual valve block An adapter manifold comprising a first dual valve block having a first diaphragm valve and a second diaphragm valve; a first, a second, and a third low dead space connector for connecting the adapter manifold with dual valve block to the remaining portions of the ch... | 10/03/2006 |
| 7097179 | Apparatus and method for manufacturing rubber-wrapped spiral wound gaskets A spiral wound gasket made of an elongate band with a portion of the elongate band jacketed by a resilient filler material, the jacketed elongate band wrapped in a plurality of overlapping turns to define a radially thick reinforcing member with the band in each tur... | 08/29/2006 |
| 7097178 | Gasket with integral channel and port seal A novel gasket is provided for filling the space between two mating surfaces on components in an automotive transmission. The gasket includes one or more patches of silicone integrated into a portion of the gasket for providing one or more channels through the gaske... | 08/29/2006 |
| 7080841 | Hub seal adapter A hub seal adapter has an outer diameter and thickness dimensioned to removably fit into the internal bore of a standard automotive hub in the same position that the grease seal would normally occupy, and be retained in the hub by the same snap ring as would be used... | 07/25/2006 |
