Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7310867 | Snap in place gasket installation method A pipe sealing gasket is shown which is designed to be received within a groove provided within a belled, socket end of a plastic pipe. The groove in the plastic pipe is preformed during manufacture and the gasket is installed thereafter. The gasket nominal diameter... | 12/25/2007 |
| 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 |
| 7249415 | Method of forming members for sealing or baffling There is disclosed a member for sealing, baffling and/or reinforcing components of an automotive vehicle. The assembly generally includes a carrier, an expandable material and at least one fastener. ... | 07/31/2007 |
| 7228915 | Device and method to seal boreholes Apparatus and methods are described that are particularly suited for creating a seal in a borehole annulus. In one embodiment, an outer surface 10s of an expandable conduit 10 is provided with a formation 20 that includes an elastomeric m... | 06/12/2007 |
| 6923998 | 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... | 08/02/2005 |
| 6834725 | Reinforced swelling elastomer seal element on expandable tubular An apparatus and method used for sealing a wellbore. The apparatus includes a swelling elastomer disposed around an outer surface of the tubular body. The swelling elastomer is isolated from wellbore fluid in an annulus. However, upon the application of an outwardly... | 12/28/2004 |
| 6832425 | Gasket singulation and insertion apparatus and methods A gasket singulation apparatus for separating one gasket from a web-connected stack of gaskets includes a mandrel for receiving the web-connected stack and an arrangement of cylinders which are used to support the web-connected stack of gaskets and to pull one gaske... | 12/21/2004 |
| 6782592 | Method for retrofitting a pressure molding system A system for pressure molding plastic material includes a source of hot flowable plastic material and a manifold for receiving hot flowable plastic material from the source and for transporting the hot flowable plastic material to a nozzle that is disposed within a ... | 08/31/2004 |
| 6726219 | Air damper with graphite coated lip seal The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is coated with a minimum of 0.5%/seal part weight graphite powder/molybdenum disulfide. This provides for increased smoothness of operation of the air d... | 04/27/2004 |
| 6667435 | Magnetic gasket for fastening electronic components A magnetic gasket that fastens together components in an electronic device. An adhesive, such as a pressure sensitive adhesive, is attached to a magnetic strip. An electrically conductive gasket, such as a soft foam core with a conductive fabric wrap, is ... | 12/23/2003 |
| 6659470 | Oil seal of hydraulic shock absorber In an oil seal of a hydraulic shock absorber, the oil seal is made of a nitrile rubber of a low nitrile, and an inner diameter of a second lip is set to be smaller within a range between 0.3 and 1.0 mm $c; than an outer diameter of a piston rod.... | 12/09/2003 |
| 6607830 | Composite material for metal gasket The composite material for a metal gasket includes a metal plate; a rubber layer fixed on the surface of the metal plate; and a solid lubricant layer fixed on the rubber layer. The solid lubricant layer contains polytetrafluoroethylene and a resin as main... | 08/19/2003 |
| 6578851 | Gasket assembly for sealing mating surfaces A pair of substantially opposed mating surfaces are joined to each other and sealed in place by means of an electrically-conductive member which is placed in proximity to the mating surfaces. The electrically-conductive member has at least one element sec... | 06/17/2003 |
| 6558782 | Flexible graphite sheet and method of producing the same Flexible graphite article of manufacture made by compressing a mixture of expanded graphite particle and a fluoro-resin including ethylene-tetrafluoroethylene (ETFE) copolymers after additional heat treatment. An article of manufacture of a gasket materia... | 05/06/2003 |
| 6551437 | Method for sealing tape production, and method of repairs with sealing tape The tape is free from any slack and separation even when it is applied and bonded to a metal joint portion while being bent. The tape, made of an unvulcanized material containing an unvulcanized rubber-base material, a vulcanization accelerator, an anti-o... | 04/22/2003 |
| 6517080 | Seal material having anisotropic properties A material comprised of two different polymers so that the material exhibits anisotropic properties. The anisotropic properties exhibit hardness and wear resistance along with flexibility. The anisotropic material is made up of a hard segment polymer and ... | 02/11/2003 |
| 6513810 | Sealing ring A sealing ring, including a support ring made of an impact-resistant material, and a lip ring made of PTFE, where the lip ring has a holding segment and a sealing segment, and where the holding segment is connected with the support ring by an intermediate... | 02/04/2003 |
| 6513811 | Air damper with graphite coated lip seal The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is made of rubber or thermoplastic elastomer impregnated with a minimum of 3% molybdenum/seal part weight, or a minimum of 2% polytetrafluoro... | 02/04/2003 |
| 6465731 | Through conductive EMI shielding gasket A gasket for electrical apparatus and the like, operation of which tends to generate or be adversely affected by electromagnetic and radio frequency interference (EMI/RFI), comprising a compressible, electrically conductive core. It may also comprise a fl... | 10/15/2002 |
| 6418959 | Rubber component for fuel seal A rubber component that provides a fuel seal is provided which includes a base formed principally of fluorosilicon rubber or hydrin rubber, and a coating layer applied by coating to the base and formed principally of nylon or fluorine-contained resin.... | 07/16/2002 |
| 6406030 | O-ring seal with lubricant additives for rock bit bearings O-ring seals for rock bit bearings comprise a body formed from an elastomeric material having one or more lubricant additive uniformly distributed throughout to reduce the coefficient of friction and stick slick amplitude at O-ring seal surfaces. The lubr... | 06/18/2002 |
| 6399204 | Flexible multi-layer gasketing product A substantially adhesive-free flexible multi-layer graphite based product comprising a first and second outer graphite layer and a layer intermediate to the first and second outer graphite layers, wherein said first and second outer graphite layers compri... | 06/04/2002 |
| 6398224 | Metal seal and coating material for metal seals The invention relates to a metal seal, which is fitted with a coating containing 10 to 60 wt. % of at least one elastomer, 5 to 50 wt. % of at least one inorganic fiber, 0.5 to 20 wt. % of at least one organic fiber, 10 to 80 wt. % filling material. The p... | 06/04/2002 |
| 6361055 | Cryogenic composite tank seals Sealed structural joints for use in manufacturing pressurized tank structures, and particularly cryogenic fuel tanks. In a preferred embodiment, the structural joints and seals comprise a strain-compliant material as applied to a joint or seam to provide ... | 03/26/2002 |
| 6357540 | Rotary drill bit with lip seal in roller cone bit A roller-cone drill bit in which a double lip seal, made of a self-lubricating elastomer, protects the bearings from the mud.... | 03/19/2002 |
| 6345825 | Sealing arrangement A sealing arrangement including a ring gasket having at least one dynamically stressed sealing lip which is in sealing contact with a first machine element. A multipole ring made of a magnetized elastomer material is connected to a carrier ring and is mov... | 02/12/2002 |
| 6341781 | Sealing element for a face seal assembly A sealing element for a face seal assembly including a bellows portion having mounting portions at its axial ends. One of the mounting portions is designed for non-rotational mounting on a component, e.g. a shaft, and the other for retaining an annular fa... | 01/29/2002 |
| 6334615 | Seal for rolling bearing The present invention provides a seal for rolling bearings having improved sealing properties, undergoing no separation between a core and a peripheral portion nor deformation even in long-term use. The seal comprises a flexible resin portion which comes ... | 01/01/2002 |
| 6305483 | Multi-piece rotary cone drill bit seal Multi-piece seals of this invention include an annular seal body that is formed from an elastomeric energizing material, and that has a static seal surface along one surface and a contacting surface along another surface. A remaining seal portion in the f... | 10/23/2001 |
| 6302405 | Anti-extrusion seal A seal assembly formed of a T-seal, a pair of back-up rings abutting each side of the T-seal, and a bearing abutting the side of each of the back-up rings. The T-seal is formed of a elastomer material, the back-up ring is formed of a PTFE (polytetraflouro... | 10/16/2001 |
| 6298908 | Heat exchange assembly and seal therefor A heat exchanger assembly suitable for use in a heating, ventilating and air conditioning system of a vehicle comprising a housing, a heat exchanger core disposed in the housing and spaced from the housing to provide a peripheral spacing between the core ... | 10/09/2001 |
| 6258457 | Metal-reinforced graphite multilayer sheet A multilayer sheet having high compressive strength, high heat resistance and low permeability relative to fluids, includes layers of graphite foils and metal foils disposed alternating one upon another and parallel, with the graphite foils joined to the ... | 07/10/2001 |
| 6254104 | Gasket for an aerosol valve stem An improved valve stem gasket comprising a flat-shaped gasket with a central aperture wherein the durometer of the gasket varies from a relatively low hardness value in the inner portion of the gasket extending radially outward from the central aperture t... | 07/03/2001 |
| 6241854 | Suction roll sealing strip A composite is provided for forming a sealing strip for use in a suction roll of a papermaking machine or other device for maintaining a seal when brought into contact with a surface and that has extended usability and wear. The composite is a blend of a ... | 06/05/2001 |
| 6237966 | Co-extruded dual durometer hardness pipe gasket A pipe joint is formed using a gasket made of coextruded materials of different durometer hardnesses. The gasket includes a relatively soft, thermoplastic elasomeric sealing portion joined to a harder, plastic substrate on one side of the substrate, usual... | 05/29/2001 |
| 6179296 | Dual functioning seal for rock bits Dual functioning seals for use in forming a lubricant seal in a rotary rock bit comprise an annular elastomeric seal body having a dynamic seal surface for sealing against a dynamic surface and a static seal surface for sealing against a static surface. T... | 01/30/2001 |
| 6170830 | Dual functioning seal for rock bits Dual functioning seals for use in forming a lubricant seal in a rotary rock bit comprise an annular elastomeric seal body having a dynamic seal surface for sealing against a dynamic surface and a static seal surface for sealing against a static surface. T... | 01/09/2001 |
| 6161841 | Vehicle O ring fuel cap gasket This invention discloses, as a manufacture, a vehicle O ring fuel cap gasket having a diagonally inverted modified C shape cross section and a groove extending for the full circumference of the O ring and in cross section the groove edges extend downward,... | 12/19/2000 |
| 6142483 | Gasket assembly for sealing mating surfaces A gasket assembly for securing a pair of surfaces together wherein an electrically conductive gasket base having a central opening is provided with a pair of layers secured to opposite sides of the gasket base, with the layers being a fusible alloy, a bra... | 11/07/2000 |
| 6139023 | Seal for movable structural components A seal for movable structural components, like piston rods or shafts, includes a carrier body made of thermoplastic material and a sealing member locked to said carrier body and made of polytetrafluoroethylene (PTFE) material. A form-lock connection is ac... | 10/31/2000 |
