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| Number | Title | Issue Date |
| 7401789 | Rack bushing for rack and pinion steering assembly The invention contemplates a rack bushing and a rack and pinion steering assembly for use in a vehicle that includes such a rack bushing. The steering assembly may include a housing having a tubular rack portion with a tubular end, a rack mounted in the tubular rack... | 07/22/2008 |
| 7322501 | Fastener driving tool A cylinder is constituted such that the cylinder includes a large diameter portion constituted by forming a portion thereof brought into contact with an O ring by a diameter larger than a diameter of other portion when a piston is disposed at an upper dead center an... | 01/29/2008 |
| 7281412 | In-situ seal integrity monitoring A high-temperature seal having in-situ integrity monitoring capability includes a quantity of dielectric material sealing an interface between adjacent structures and an electrical transmission line embedded within the dielectric material. A signal injection port is... | 10/16/2007 |
| 7264249 | Seal A hub unit including a hub and a flange integrally formed with the hub, and a seal including a core metal and an elastic body integrally molded with the core metal. The elastic body includes one or more lips in sliding contact with one or both of the hub and the fla... | 09/04/2007 |
| 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 |
| 7225897 | Structure of receiving and delivering oil A structure is provided for receiving and delivering oil from a first oil path in a wall of a casing to a second oil path within a rotating shaft supported by the casing on an inner side surface of the casing. A recess is formed in which the first oil path is opened... | 06/05/2007 |
| 6776419 | Seal for a reciprocating plunger A seal for a reciprocating plunger is formed of a hard polyimide plastic, rather than the relatively soft elastomers of earlier seals. The present seal has a conical section, with the tapered face fitting closely within the mating conical face of a hard metal retain... | 08/17/2004 |
| 6653556 | Conductive gasket A conductive gasket includes: a non-conductive, elastic core; a flexible conductive cloth enclosing an outer surface of the core; a hot-melt adhesive inserted between the core and the conductive cloth to attach the core and the conductive cloth; a pressur... | 11/25/2003 |
| 6505837 | Compliant foil seal A compliant foil seal comprising at least one smooth resilient foil for facing a rotor and at least one bump foil for providing film riding stiffness and controlled deformation of the smooth resilient foil for providing an effective seal which is capable ... | 01/14/2003 |
| 6450503 | Box-type seal assembly, in particular for vehicle axles A seal assembly to be inserted between two members in relative rotation, including a bushing that is fitted to the first member and is connected with a gasket, wherein both connections form fluid-tight seals. The gasket includes a rigid reinforcement that... | 09/17/2002 |
| 6338491 | Rotary shaft seal An improved rotary shaft seal assembly is disclosed herein. The seal assembly is disclosed in combination with an example of transmission components with which it may be used. The assembly provides a rotary seal for fluid flow between a stationary cylinde... | 01/15/2002 |
| 6129358 | Unidirectional rod sealing ring for a hydraulic cylinder A unidirectional rod sealing ring adapted for forming a sealed condition in association with a member such as a piston rod or shaft axially movable in a bore of a hydraulic cylinder, the sealing ring including an elastomeric ring member having an axially ... | 10/10/2000 |
| 6098987 | Machinery seal A seal assembly for a groove or seal gland in a relatively stationary machine part for sealing an axially displaceable machine part extending therethrough comprises a relatively flexible seal element supported by a relatively rigid support element. The se... | 08/08/2000 |
| 6036191 | Rotary valve seal assembly A seal assembly for providing a seal between a cylindrical member and a bore formed in a housing, the housing and cylindrical member being rotatable relative to one another, the seal assembly being located within an annular groove formed in the cylindrica... | 03/14/2000 |
| 5988649 | Fractured seal ring A seal ring for placement in the space between a radial groove of a cylindrical member and a housing forming a bore in which the cylindrical member is movably positioned, which is free of scoring and has a fracture line through its thickness to form oppos... | 11/23/1999 |
| 5957462 | Seal structure between a rotatable member and a stationary member A seal structure includes a stationary member, a rotatable member disposed within the stationary member to divide an interior of the stationary member into two chambers, a seal member mildly pressed to the stationary member and the rotatable member, and a... | 09/28/1999 |
| 5941534 | Hydraulic seal system A hydraulic seal system includes a seal ring groove and a seal ring mounted in the seal ring groove. The seal ring and seal ring groove are rotatable relative to each other, and have sealing sides, respectively, which are put into pressure contact with ea... | 08/24/1999 |
| 5865443 | Seal ring In the manufacture of a seal ring having a cut portion at one position on the circumference by injecting a molten molding material from a gate into a cavity of a forming die, the gate is provided at a position apart from the opposite position to the cut p... | 02/02/1999 |
| 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 |
| 5785323 | Seal with electrical conductor wear indicator A seal for preventing leakage of fluid from between a first member and a second member, the second member is capable of moving toward and away from the first member, the seal is adapted for engaged contact with the first member and the second member so as... | 07/28/1998 |
| 5772259 | Slide assembly with telescoping fluid conduits with improved sealing arrangement An actuating slide assembly for an automatic assembly machine, wherein the slide assembly includes telescoping fluid conducting conduits interconnected between the slide body and associated end block mounted for relative reciprocal movement relative to th... | 06/30/1998 |
| 5713578 | Hydraulic sealing device One end of a seal ring retained in a seal ring groove is formed in such a manner that it is offset radially inwardly from the other end, so that oil is permitted to leak by opening an abutment joint formed by the two ends in a condition in which no hydrau... | 02/03/1998 |
| 5660398 | Hydraulic sealing device In a sealing device, a crank-shaped oil channel is defined in an abutment of a sealing ring for sealing between a shaft member and a housing which surrounds the shaft member and is rotatable relative the shaft member. The crank-shaped oil channel is compr... | 08/26/1997 |
| 5121930 | Piston seal cartridge for a reciprocating needle An air operated dispense head for dispensing of hot melt and related adhesives is provided which utilizes a drop-in seal cartridge assembly in which a hardened needle is sealed using a pair of quad seals along with soft back up rings. Improved life is obt... | 06/16/1992 |
| 4947811 | Floating valve stem seal A valve stem seal assembly includes a rigid cylindrical shell and an annular resilient seal body supported within an endwall of the shell. The resilient seal body includes an exterior circumferential groove, and the endwall contains an aperture adapted fo... | 08/14/1990 |
| 4917390 | Hydraulic seal assembly An improved seal for use in a hydraulic system such as a piston rod in a housing, the seal having a stressing member and sealing member in which the latter is in point contact with, for example, a piston rod under low fluid pressure and has an additional ... | 04/17/1990 |
| 4844484 | Floating lip seal with reinforced flexible portion An annular shaft seal including a continuous lip sealing element for sealing against oil flow between a bore and a shaft extending through the bore includes a convoluted elastomeric flexible section which connects the sealing element with a rigid case sup... | 07/04/1989 |
| 4706971 | Seal ring for piston rods with partings For sealing-off a piston rod moistened with lubricating oil, for example of a 2-stroke diesel engine, several seal rings, some of which only act as wiper rings and some of which also act as seal rings for a gas-tight seal, depending on their design, are a... | 11/17/1987 |
| 4588195 | Floating lip seal assembly with convoluted flexible section An annular shaft seal of the type including a continuous lip seal element for sealing against oil flow through and between a bore and a shaft extending therethrough includes a convoluted elastomeric flexible section which connects the sealing element with... | 05/13/1986 |
| 4577874 | Seal assembly A two element, high and low pressure seal assembly to be used in a hydraulic or pneumatic sealing environment between two relatively movable machine parts, the seal assembly comprising a spring element, circular or rectangular in cross-section and made of... | 03/25/1986 |
| 4553763 | Seal ring having an axis parallel intermediate ring A seal ring has a lip ring which is at least radially resilient and has a sealing lip for sealing about a reprocating or rotating machine part and a support surface axially spaced from the sealing lip. A reinforcing ring is radially spaced from the lip ri... | 11/19/1985 |
| 4537422 | Sealing system for road wheel suspension A hydropneumatic suspension unit includes a large diameter flanged road arm spindle which is bolted to the vehicle hull; a road arm has one end rotatably mounted on the road arm spindle and another end mounting a road wheel; a gravity oriented oil barrier... | 08/27/1985 |
| 4458717 | Cylinder cushion seal A synthetic plastic cushion seal for an expansible chamber motor usable with either an air or oil pressurized medium, the seal having reduced friction characteristics, being of a concise configuration and utilizing radial and axial channels to facilitate ... | 07/10/1984 |
| 4448425 | Shaft seal assembly with inflatable annular member An annular seal assembly disposed between a shaft surface and a surrounding ousing, for example, a seal assembly for an aft-stern tube seal of a sea-going vessel, comprises a nonrotating annular seal element having a circumferentially segmented constructio... | 05/15/1984 |
| 4448429 | Elastomer energized seal An expander ring for use in elastomer energized seal assemblies. The expander ring includes two annular lobe portions interconnected by an integral center portion. Each lobe portion is provided with annular pressure ridges for providing localized annular ... | 05/15/1984 |
| 4428687 | Floating seal for earth boring bit An earth boring bit has a bearing seal that floats to accommodate angular and axial movement of the cutter with respect to the shaft. The seal is located in an annular groove formed in the shaft. A supporting ring is located in the groove. The supporting ... | 01/31/1984 |
| 4426090 | Pressure relief exclusion seal An exclusion seal for being removably mounted in a bearing mount is formed with an annular housing with an internal sealing means having a sealing ring is constructed to prevent a "blow-out" of the seal due to the high lubricant pressure. The annular hous... | 01/17/1984 |
| 4389003 | Sliding inlet seal for an atomizing pump dispenser In an atomizing pump dispenser which includes a pump body having a pump chamber with a piston disposed for reciprocal motion therein for dispensing a fluid from the pump chamber upon depression of a dispensing stem which is operatively coupled to the pist... | 06/21/1983 |
| 4284019 | Lubricant sealing device for sewing machines A lubricant sealing element for the slide members which actuate the feed dogs in a sewing machine fabricated from a resilient wear resistant material and having lubricant scraping surfaces formed by spaced walls defining an opening conforming in size to t... | 08/18/1981 |
| 4203607 | High pressure, fluid tight seal A system for effecting a fluid tight seal between two surfaces where one of the surfaces has an annular recess for receiving an annular sealing element which typically is an elastomeric sealing element. The sealing element is compressed when disposed betw... | 05/20/1980 |
