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| Number | Title | Issue Date |
| 7172371 | Method of sealing casings of subsurface materials management system Systems, components, and methods relating to subterranean containment barriers. Laterally adjacent tubular casings having male interlock structures and multiple female interlock structures defining recesses for receiving a male interlock structure are used to create... | 02/06/2007 |
| 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 |
| 6543785 | Packing structure A packing structure has a core element of a material having a high fluid impermeability, and a thin coated rubber layer formed thereon to cover at least its sealing surface and having a glass transition temperature which is lower than the lowest temperatu... | 04/08/2003 |
| 6540264 | Quick connector for piping In a quick connector for piping 10 for detachably connecting a male member 12 to a female member 11, an O-ring 15 is interposed between the female member 11 and the male member 12 so as to form a seal therebetween, and the O-ring 15 is subjected to a low-... | 04/01/2003 |
| 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 |
| 6322086 | Seal structure of compressor, and the compressor In a seal structure of a compressor according to the present invention, two O-rings 6 and 7 are disposed at a joint portion between a front housing 2 and a cylinder block 3 constituting a housing of a compressor 1. The inner O-ring 6 uses a material excel... | 11/27/2001 |
| 6299805 | Boron nitride sealing element A sealing member is produced from form-pressed boron nitride powder, while adding an inorganic or organic binding agent. Such boron nitride powder is obtained during the machining of boron nitride blocks composed of hexagonal boron nitride. This powder ca... | 10/09/2001 |
| 6189890 | Sealing joint for sheet piles A method of sealing sheet pile joints using a paraffinic product to seal the gripping elements of the sheet piles. The paraffinic products usable for sealing the gripping elements of sheet piles have a drop point lying between 100 and 140° C. and a cone ... | 02/20/2001 |
| 6164422 | Method for assembling a disk brake with a lacquer-coated sealing ring and a disk brake assembly A brake (10) for a hydraulic vehicle brake system has a housing (14) with a bore (18) which is formed therein and in which a brake piston (20) is received in a sealingly and slideably displaceable manner. The brake piston (20) is adapted to press a brake ... | 12/26/2000 |
| 5882012 | Oil seal ring An oil-submerged sliding member which has a good sealability and wear resistance and low attack to the mating member and which can be used with either a soft or a non-soft mating member. It is made from a resin composition comprising 30-88% by weight of a... | 03/16/1999 |
| 5862995 | High pressure fluid passage sealing for internal combustion engine fuel injectors and method of making same A fuel injector assembly for an internal combustion engine includes an injector body having a control valve in fluid communication with a source of fuel. A fuel nozzle assembly is employed to disperse fuel from the assembly. A high pressure fuel passage p... | 01/26/1999 |
| 5804316 | Baked packing for sealing shafts and valve stems A packing having a flexible core and a skin of expanded intercalated graphite with an adhesive layer, baked for a predetermined period at a predetermined temperature for reduced adhesive flowability while maintaining tack for holding the skin wrapped arou... | 09/08/1998 |
| 5791654 | Corrosion resistant gasket in combination with aircraft antenna A corrosion resistant gasket combined with an aircraft antenna, and more particularly to encapsulation of a conductive mesh in a pliable fluorosilicone compound that will not become bonded to mating surfaces and will also migrate upon compression during i... | 08/11/1998 |
| 5654071 | Anti-dust gel sheet An anti-dust gel sheet characterized in being formed from layers of a silicone gel, having a penetration of 20-130 after curing, coated on both sides of a sheet like reinforcing material is disclosed. Since the sheet has a suitable penetration, damage of ... | 08/05/1997 |
| 5628520 | Sealing material made of expanded graphite having opened thin-leaf surface structure An expanded graphite sealing material is provided in which the adaptability of the principal face of an expanded graphite base member is improved, the bonding strength to a coating layer and the like can be increased, and the sealing properties can be enh... | 05/13/1997 |
| 5536020 | Magnetic fluid seal apparatus with electroplated and non-electroplated coatings A spindle motor comprising a stationary member, a hub rotatably supported on the stationary member via a pair of bearing members, and a magnetic fluid seal disposed outwardly of at least one of the pair of bearing members. A conduit hole is provided to co... | 07/16/1996 |
| 5362073 | Composite seal for rotary cone rock bits An elastomeric o-ring rock bit seal is disclosed with two or more integrally bonded elastomers or phenolic type materials joined together to form the seal. The dynamic sealing face adjacent the journal bearing is fabricated from an elastomer/phenolic engi... | 11/08/1994 |
| 5328179 | Furnish composition Gasketing paper is commonly made by the beater addition process. In the beater addition process a furnish composition is prepared by mixing latex into a fiber slurry which also typically contains one or more fillers. The beater addition process is current... | 07/12/1994 |
| 5149055 | Shut-off valve A piston type of shut-off valve with a sealing ring made of expanded graphite. A plurality of ring-shaped lamellae are each stamped from a foil of expanded graphite and then joined to form a sealing ring. A peripheral edge surface of the sealing ring, rat... | 09/22/1992 |
| 5072952 | Sealing element The present invention refers to a sealing element, particularly for the sealing of joints, having a foam element which is elastically expandable with delay as a result of impregnation and a substantially air-tight cover. In order to obtain improved tightn... | 12/17/1991 |
| 5040803 | Cavity sealing arrangement and method A vehicle body pillar has a cavity therein through which air flow creating undesirable noise and in which moisture and fluids such as water are not to be collected. An expandable sealant plug is inserted therein and retained in place. The sealant material... | 08/20/1991 |
| 4872911 | Stop leak composition A method of using a particulate matter formed of a tri-dimensional cross-linked superabsorbent hydrogel for stopping leaks in a cooling system of a vehicle. The hydrogel is added to a filled coolant system and the engine is run for a period of time until ... | 10/10/1989 |
| 4807891 | Electromagnetic pulse rotary seal An rotary seal for protection against electromagnetic interference and electromagnetic pulses is disclosed. An electrically conductive resilient bellows surrounds a shaft extending through an opening in an enclosure. The bellows is attached at one end to ... | 02/28/1989 |
| 4635947 | UV-cured automotive seal component The sliding contact surface of the main body of a seal component, such as an automotive weather strip or glass run, is provided with the lubricating coating formed from a UV-curing coating material, whereby the drawbacks of the prior art seals, such as th... | 01/13/1987 |
| 4524159 | Leak stopping composition and method A leak stopping composition for use in heat exchange systems comprising a dispersion of a fibrillated fiber in a liquid medium.... | 06/18/1985 |
| 4519619 | High temperature resistant gasket having improved recovery characteristics A gasket of improved compressibility and recovery characteristics, and high temperature resistance. The gasket has a central annular core having upper and lower generally flat face portions, and first and second annular sheet members having an upwardly pr... | 05/28/1985 |
| 4402516 | Fully consumable remotely operated seal A method for sealing ports, ducts and the like using a fully consumable mrial as the sealing medium and utilizing the consumable capability to provide remote removal of the seal without damage to the sealed areas and with no remaining obstruction in the ... | 09/06/1983 |
| 4317408 | Wear resistant pump packing cup A packing is provided with a multilayered construction and a cup-like shape. The packing is configured to be carried in a packing holder for reciprocating motion within a pump cylinder. Some of the layers in the packing terminate on the convex face of the... | 03/02/1982 |
| 4175753 | Mechanical seal In mechanical seals adapted to perform in high temperature environments, fragile gaskets characterized by poor elasticity and conformability are used to perfect a seal between adjacent parts. Gaskets may be made of graphite, carbon, asbestos and/or fiberg... | 11/27/1979 |
| 4168838 | Bulkhead fitting A bulkhead fitting for use with plastic material for conducting fluid through an aperture in the material and comprising coupling components on either side of the material which interfaces with the plastic material by an abrasive element pressed against t... | 09/25/1979 |
| 4109921 | Seal for pistons and piston rods of cylinder-type actuators An annular seal for pistons and piston rods of cylinder-type actuators, especially hydraulic actuators, where a first sealing ring of highly elastic material is received inside an annular groove in such a way that a sharp edge of the ring exerts an elevat... | 08/29/1978 |
| 4083570 | Gasket reinforced by slit grommet The gasket has a grommet about its holes and the grommet has a slit in the narrow area between the adjoining or adjacent holes where superior sealing is required. The gasket may have, when necessary, a sheet of a heat resisting material in said area.... | 04/11/1978 |
| 4075114 | Flexible graphite material containing boric acid A process for producing flexible graphite material comprises incorporating expanded graphite material with boric acid, compression molding the resulting mixture and, if desired, heating the resulting molding while under compression. This invention also re... | 02/21/1978 |
