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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7341258 | Cammed seal assembly with sealing ring having an angled leg portion and foot portion with elastomeric energizer element A seal assembly seals first and second operational surfaces spaced apart by a gap. The first surface includes a seal groove having a base surface and first and second side surfaces. A sealing element in the seal groove has a foot portion extending parallel to the ba... | 03/11/2008 |
| 7331359 | Valve with bi-loading seal A fluid control valve has at its lower inlet end a bi-loading seal. The seal is generally ring shaped in top view. However, it has a first flexible load section for sealing the stationary disk with respect to the housing and a second load section having an annular i... | 02/19/2008 |
| 7246800 | Sealing mechanism for sealing a vacuum chamber A sealing mechanism comprises a support member forming part of the semiconductor producing apparatus which has a vacuum chamber, a rotation shaft rotatably received in the support member, and at least three seal rings axially spaced apart from each other between the... | 07/24/2007 |
| 7229102 | Fluid coolant union A coolant union includes a seal assembly having a first seal member and a non-rotating second seal member. At least one of the annular sealing surfaces presented by the rotating seal member and the non-rotating seal member is chamfered such that the chamfered sealin... | 06/12/2007 |
| 7223190 | Hydraulic chain tensioner In a hydraulic chain tensioner for an engine timing drive, an annular groove is formed on an outer circumferential surface of a plunger, and a friction ring is disposed in the groove. The friction ring is composed of an external resin ring and an internal steel ring... | 05/29/2007 |
| 7216871 | Non-contacting seal for rotating surfaces A non-contacting seal for sealing in high temperature applications includes at least one segment having an inner pad with a hydrodynamic/hydrostatic lift-off geometry enabling the seal to run in a non-contact mode, and at least one finger spring supported on the pad... | 05/15/2007 |
| 7195246 | Sealing material A sealing material for sealing liquid composed of a seal main body of resin, having a U-shaped cross section and a concave groove opening to an axis direction, and an O-ring of rubber fit to the concave groove of the seal main body used for medical appliances and pa... | 03/27/2007 |
| 7159857 | Multi spring ring A mechanical spring energized sealing device comprising in combination an elastomeric jacket and variety of resilient metallic springs inserted inside one uniform jacket casing, there are variety of energizer springs which are used for different needs in marketplace... | 01/09/2007 |
| 7131648 | Seal construction including a compressible spring mechanism for bearing preload A seal assembly adapted for use in creating a seal between an axially extending shaft and a support member. The seal assembly defines an axial passage through which the shaft extends, wherein a bearing assembly is mounted to the support member and includes a station... | 11/07/2006 |
| 7127912 | Multi-chambered container with collared O-ring A modified multi-chambered container including a container body defining a central (e.g., liquid) chamber, a neck defining an opening to the central chamber, a flange extending upward from the neck, and a groove formed in the neck around the first opening. A collare... | 10/31/2006 |
| 7110827 | Electrical connectors for medical lead having weld-less wiring connection Low resistivity, implantable electrical connectors and biomedical leads having the connectors mechanically coupled in a non-welded attachment to low resistivity wires to extend implanted device battery life. One electrical connector includes an electrically conducti... | 09/19/2006 |
| 7025357 | Shaft seal having lip supports A shaft seal includes an elastomeric annular body having an outwardly protruding annular lip. An annular outer case is embedded into the body. An annular insert is positioned adjacent the outer case. An annular inner case is embedded into the body adjacent the inser... | 04/11/2006 |
| 7004477 | Reduced load gasket A gasket is adapted to seal between a first member and a second member, and includes a first portion a second portion. The first portion includes a first elastomeric seal portion adapted to be in sealing engagement with the first member. The first portion may also i... | 02/28/2006 |
| 6994352 | Rotation shaft seal A rotation shaft seal to seal liquid, which is poor of lubricant liquid, stably for a long time. In a rotation shaft seal, provided with a rubber lip portion having a sliding inner peripheral edge portion which contacts a rotation shaft to seal liquid on a pressure ... | 02/07/2006 |
| 6918595 | Seal for high-pressure pumping system A high-pressure pumping system including an energizing seal component having an aperture extending therethrough and a seal jacket component having a base and a toroidally-shaped flared membrane extending from the base. The body and the flared membrane are monolithic... | 07/19/2005 |
| 6912993 | Throttle system To reduce the amount of air leakage from the air cleaner side of the throttle system into the engine side on an occasion where the throttle valve is set to a closed position, a seal material is installed in the air passage that runs from the upstream side of the suc... | 07/05/2005 |
| 6406029 | Seal assembly having an encapsulated cone spring A seal ring having a frustoconical spring completely encapsulated within an annular body provides a bias force to an annular lip seal of the annular body to assure positive contact with an opposed face of an adjacently disposed member of a joint assembly.... | 06/18/2002 |
| 6224322 | Seal assembly for centrifugal pumps with barrier ring In a centrifugal pump, a barrier ring in the form of a dynamic seal member is interposed between relatively rotating, generally circular wall portions which undergo relative axial movement to vary the width of a gap between the wall portions, the seal mem... | 05/01/2001 |
| 6173964 | Seal assembly with backup elements having coil springs positioned therein A seal assembly seals a cylindrical clearance space between first and second coaxial members, and is installed in a coaxial annular groove in the first member. The groove has a mouth, first and second side walls, and a base wall extending therebetween. An... | 01/16/2001 |
| 5979904 | Rotary reciprocating seals with exterior metal band A seal assembly is provided for rotary and reciprocating sealing between a shaft and a housing. The seal assembly includes a seal ring in the shape of an annulus having a body portion with an inside flange and an outside flange extending longitudinally th... | 11/09/1999 |
| 5799953 | Capped spring-energized seal The present invention involves a seal ring for sealing an annular space between two components. The seal ring includes an annular jacket, a spring, and a cap. The jacket includes an annular cavity defined by two annular lips. The spring is disposed within... | 09/01/1998 |
| 5791657 | Seals containing composite non-extrusion springs A wellhead seal assembly for sealing between first and second pipe members comprises an annular elastomeric body having, in cross-section, a generally rectangular shape comprising a first flat radial surface, a second flat radial surface, an inner circumf... | 08/11/1998 |
| 5730444 | Seal with embedded garter spring A fluid seal including a casing unit and an elastomeric lip body portion. Frustoconical air and oil side surfaces of the lip body meet at an inner diameter portion to form a fluid seal band contacting an associated shaft in use. A continuous, circumferent... | 03/24/1998 |
| 5597168 | Single split oil seal A single split oil seal is disposed between and completely encircles a rotating journal and a corresponding journal case to prevent unwanted fluid leakage. The seal includes an annular seal body with an inner radial periphery and an outer radial periphery... | 01/28/1997 |
| 5423557 | Flexible joint with jacket A flexible joint to ensure static imperviousness between one external medium and one internal medium, and dynamic imperviousness between the two portions of the internal medium. The joint includes a central core in the form of a spring surrounded by three... | 06/13/1995 |
| 5421591 | Sealing arrangement The invention concerns a sealing arrangement for use in steered axles of vehicles employed in agriculture and/or the building trade. The sealing arrangement (24) consists of separate seals (46, 47) which are assembled into a sealing set (48) by way of a s... | 06/06/1995 |
| 5337840 | Improved mud motor system incorporating fluid bearings An improved mud motor system for drilling or workover down hole which includes an upper stator portion housed within a stator body connectedly engaged to a drill or workover string. The stator receives a flow of drilling mud through the drill or workover ... | 08/16/1994 |
| 5330156 | Seal arrangement for valves A sealing arrangement for a valve or shaft is disclosed which is designed to respond to movements of a rotatable element in a particular manner and to increase sealing pressure with increasing fluid pressure. The seal undergoes a radial compressive type m... | 07/19/1994 |
| 5288086 | Composite rod wiper A composite rod wiper for an end cap of a hydraulic cylinder is disclosed for wiping the cylindrical exterior surface of an extensible and retractable rod extending through the end cap. The rod wiper includes a wiper ring of a first, hard and wear resista... | 02/22/1994 |
| 5269537 | Composite radial seal A composite radial seal for sealing the rod end of a hydraulic cylinder or suspension strut is disclosed. The composite seal includes a high abrasion resistant elastomeric seal ring having an elongated body. The body has a pressure end and a non-pressure ... | 12/14/1993 |
| 5163692 | One-piece composite lip seal A composite one-piece dynamic lip seal forms a dynamic ring seal between static and dynamic surfaces in a variety of applications requiring fluid sealing. The lip seal body is generally U-shaped in cross section and is principally made from a soft elastom... | 11/17/1992 |
| 4844485 | Lip seal assembly for a rotatable shaft An annular seal assembly for sealing an enclosed rotatable shaft. An annular sealing element is frictionally retained between portions of inner and outer metallic cases. The sealing element includes a sealing annulus and a reinforcing annulus which are di... | 07/04/1989 |
| 4789166 | Rotary shaft wave seal A seal for use about a rotatable shaft comprises an annular cylindrical elastic sealing element having a radially inwardly extending flange defining a sealing lip at its radially innermost edge. An axially undulatory wave spring molded internally of the f... | 12/06/1988 |
| 4589665 | Fluorocarbon resin seal and method of making same A sealing element is provided which is formed of a fluorocarbon resin sheet and radially slit into two annular overlapping flaps to receive a garter spring or the like therebetween at a location adjacent to that peripheral portion of the element which is ... | 05/20/1986 |
| 4426086 | Annular seal and method of use Seal comprising annular baseplate 5, carried on the surface of shaft 7, and main annular body 2, with annular metal reinforcement 3, comprising a continuous spring cast into the body, said annular body 2 being connected to baseplate 5 via flexible neck 4,... | 01/17/1984 |
| 4379558 | Anti-extrusion packing member A seal or packing for use in dynamic or static applications subject to stretching, twisting or deforming forces, includes a body member forming the sealing and packing surfaces, together with an anti-extrusion reinforcing element incorporated in the body ... | 04/12/1983 |
| 4212476 | Hydrodynamic seal Disclosed is a hydrodynamic seal comprising a sealing member of a fluorine resin including a sealing lip portion having a conical shape and a fixing portion extending from the sealing lip portion in the radial direction, a gripping support member for grip... | 07/15/1980 |
| 4190258 | Fluorocarbon resin seal and method of making same A sealing element is provided which is formed of a fluorocarbon resin sheet and radially slit into two annular overlapping flaps to receive a garter spring or the like therebetween at a location adjacent to that peripheral portion of the element which is ... | 02/26/1980 |
| 4116451 | Shaft seal assembly and seal ring therefor A seal is disclosed for use in high ambient temperatures. The seal includes a plurality of V-shaped seal rings having opposite convex and concave sides that are stacked or rested in the annular space provided between a shaft and a housing through which th... | 09/26/1978 |
| 4053030 | Piston seal and return spring A seal for use on a disc brake piston/caliper assembly which seals the piston and also functions as a piston-return spring. The seal has a seal-retaining portion, a sealing lip portion, and a radially extending flex portion therebetween for retracting the... | 10/11/1977 |
