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7637508 |
High temperature high pressure seal stack having run-dry capability
A long life high pressure seal stack provides a reliable and efficient seal between a plunger and housing of a plunger type pump. The seal stack includes a high pressure sealing element and a low...
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7578495 |
Leak prevention system
The present invention is a leak prevention system that monitors and detects loosening of a valve. The leak prevention system includes a biasing member, a tightening member, and a pulling member....
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7563079 |
Bore and shaft assembly
An exemplary system for a turbomachine includes a bore extending from an inner end to an outer end with an inner seat proximate to the inner end and an outer seat proximate to the outer end, a...
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7549836 |
Bearing seal with backup device
A bearing seal assembly includes a pair segmented circumferential or a carbon ring seals to contain oil in the bearing compartments of a gas turbine engine or other mechanical device. The pair of...
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7543822 |
Composite rotary seal assembly
A composite seal assembly for providing a seal between a rotating shaft and a static surface. The composite seal assembly includes first and second axially adjacent annular seal elements. The first...
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7478981 |
Concealed glandular seal
Disclosed herein is a contamination protection apparatus that includes a concealed linear glandular seal for providing continuous protection along an entire length of a movable table of a precision...
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7396019 |
Valve gasket
A valve gasket for sealing a fluid dispenser device comprising a valve, in particular a metering valve, mounted on a fluid reservoir, said gasket being characterized in that it comprises an alloy...
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7389991 |
Leakage seal for gas path of gas turbine
A leakage seal for use in a gas path between two relatively rotatable members of a gas turbine comprises a foil layer and a cloth layer. The foil layer has two expansive surfaces, a single one of...
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7217036 |
Sealed ball bearing
In a seal-type rolling bearing, between an inner ring and an outer ring, contact-type seal plates are respectively interposed on the counter-water-drenchable side and on the water-drenchable side....
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7168147 |
Method for manufacturing a drilling tool with an elastomer seal having graded properties
A method of forming a seal for a subterranean drilling tool employs irradiation. The seal is formed of a single homogeneous elastomeric material. The seal has an exterior surface with at least one...
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7140616 |
Sealing device
The invention relates to a sealing device which is provided with an annular circumferential groove in a preceding sealing washer and having a sealing body disposed in the groove. The width and...
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7125018 |
Low-friction seal
A low-friction seal comprising a quasi dimensionally stable sealing ring ( 44 ) that is accommodated with radial and axial clearance in a groove ( 30; 76 ) of one of two surface, whereby said...
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7121553 |
Bushing for a hydraulic valve
A bushing for a hydraulic valve has a bushing wall having openings allowing passage of a hydraulic medium to and from an interior of the bushing. The openings have an opening wall that at least...
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6945535 |
Seal
A seal, especially for shafts movable in a translational direction, has at least one static sealing area and at least one dynamic sealing area and another sealing point outside of the dynamic...
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6913266 |
Sealing device
A sealing device for a shaft ( 2 ) or rod which is movably disposed in a guide arranged between a high-pressure space ( 10 ) and a low-pressure area ( 11 ) of a pressure-resistant housing ( 1 )...
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6871858 |
Shaft sealing apparatus
A shaft sealing apparatus is provided which can easily be assembled and arranged to prevent leakage of a dope from an acetylator or the like system. A screw sleeve having a spiral groove provided...
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6783129 |
Sealing device
A seal device ( 31 ) for a bearing system ( 21 ) is constituted by first and second seal rings ( 32 ) and ( 35 ). The first seal ring ( 32 ) is constituted by a lip seal ( 33 ) having a lip portion...
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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...
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6742782 |
Seal of non-hermetic design
A seal of non-hermetic design for installation between two components which can move relative to one another, includes a multiplicity of flexurally elastic sealing elements which each have an end...
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6702293 |
Seal member mounted between cylinder head cover and ignition plug tube
A seal member adapted to be mounted between a cylinder head cover and an ignition plug tube comprises a mount portion interposed radially movably between an upper surface of an annular stepped...
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6692008 |
Sealing arrangement
A sealing arrangement for closing off an end of a chamber formed between a plurality of rollers of a pressing apparatus, comprises a seal member made of a hard seal material such as carbon fiber...
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6672594 |
High temperature coating of exhaust components
A coating used to seal together surfaces of components is disclosed. The coating reduces costs associated with using gaskets and fine machining of metal components, and has slip characteristics...
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6659468 |
Rotary seal
A seal includes an annular seal body and an annular lip attached to the seal body and extending radially outwards from the seal body. The annular lip has a stem and a tip and is attached to the...
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6626437 |
Wiper seal
A wiper seal for a hydraulic component is provided. The wiper seal includes a support member and a body portion. The support member includes a first leg having an inner surface, a first end, and a...
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6622832 |
Hydraulic shock absorber
A rod guide is press-filted to an inner periphery of an outer cylinder and to an inner periphery of an inner cylinder. A rod seal is provided at an inner periphery of a cover member for covering...
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6607196 |
Sealing washer
The invention concerns a device for sealing off a ring-formed opening between the rings in a ball bearing. According to the invention the device is designed like a washer ( 9 ) comprising an outer...
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6585270 |
Hydrogen seal ring having seal at ring intersegment
A seal is provided at the intersegments of hydrogen seal rings for preventing oil leakage through this potential gap between the seal ring segments. By minimizing leakage through the gaps between...
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6578850 |
Dynamic seal for a drive shaft
A dynamic seal for a drive shaft including a seal housing with at least one inlet for injecting a fluid, (i.e., a liquid or gas) into the seal. The seal also has an expeller device, such as an...
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6561520 |
Hydrodynamic rotary coupling seal
A rotary seal is provided that operates hydrodynamically in response to relative rotation even when subjected to exposure to a high fluid pressure from either side, and provides low breakout and...
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6547256 |
Cloth ring seal
A seal assembly including a low flow cloth ring seal having a cloth assemblage is provided for sealing a tubular cavity disposed between a tubular member and a mating body. The density of the cloth...
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6527276 |
Sealing system for shaft-mounted speed reducers
A sealing system for a gear reducer includes a compound sealing arrangement disposed in a bore of the reducer housing through which a rotating member extends. The sealing arrangement includes an...
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6520507 |
Sealing sleeve, especially for small-dimension installation spaces
A sealing sleeve made of a polymer material especially for small-dimension installation spaces, the sealing sleeve having a retaining segment and a sealing segment, the retaining segment being...
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6502827 |
Sealing device and a method of repairing/replacing sealing devices
A sealing device (20, 80, 90), optionally in the form of a kit is provided for sealing about a rotatable member such as a shaft (22). The sealing device or the kit includes a follower housing (32)...
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6497415 |
Elastomer energized rod seal
The present seal system is in two parts. First is that of an elastomer energizer, which may be in the shape of a square ring, o-ring, or an other custom design for energizing the seal system....
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6454270 |
Low leakage snout sealing system
A low leakage sealing system is provided between a steam pipe and a housing comprised of a pair of shells and a nozzle box movable relative to one another. The sealing system includes large and...
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6435516 |
Neck seal with v-groove spring
An improved neck seal having an interior surface being concave throughout and shaped to entirely conform to the circumference of a roll surface of a roll. The concave surface further defines the...
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6412785 |
Oil seal for a door closing device
A door closing device. The device includes a main body, a shaft, an annular cover mounted in the main body, and a planar gasket. Two ends of the shaft are rotatably supported in the annular cover...
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6367809 |
Seal cage
The present invention provides an improved seal cage which is useful, for example, for injectable sealing compound systems. In preferred embodiments the dimensions of the seal cage can be adjusted...
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6336638 |
Radial shaft seal
A radial shaft seal with a sealing disk made of a polymer material which curves towards a space that is sealed as the sealing disk radially approaches a shaft with respect to which it forms a seal....
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6325386 |
Rotatable seal assembly for a bicycle hub transmission
A seal for a bicycle transmission includes an annular housing and an annular seal member. The housing includes a side wall defining a plurality of circumferentially disposed slots. The seal member...
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6318727 |
Apparatus for maintaining a fluid seal with a moving substrate
An apparatus is disclosed for maintaining a fluid seal with a moving substrate. The apparatus includes an enclosure and a cap. The enclosure has a first surface and a second surface with the first...
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6217031 |
Sealing arrangement for a rolling bearing
Sealing arrangement for a rolling bearing exhibiting at least one row of rolling elements 7 between a first ring 1 or 2 and a second ring 2 or 1 which are concentric and radially separated from one...
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6202668 |
Valve with fire-resistant seal
A valve with fire-resistant seal for use in industrial piping applications. The valve includes a valve body with a valve element therein. The valve is illustrated as a ball valve, but other valve...
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6003407 |
Sealing device for motorcycle toe shift mechanism
A tubular sealing spacer is disclosed which is an improvement on the standard toe shift mechanism for connecting a toe shift lever to the transmission of a motorcycle for shifting gears during...
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5984315 |
Reclamation system for a hydraulic pump system
A hydraulic pump system is provided with a leakage fluid reclamation sub-system having connected eductor and fluid line elements that function to return hydraulic fluid leaked from around the...
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5846391 |
Seal for a sensor element of a gas sensor
A seal for a sensor element for a gas sensor for determining the oxygen content in a gas to be measured including exhaust gases of internal combustion engines, the seal including a metallic housing...
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5810553 |
Pump provided with at least one rotary shaft
In order to reduce the requirements for cleaning and provide a structure which is also easy to disassemble for cleaning without the use of tools, a pump, which has a rotary element such as an...
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5794940 |
End face seal with sacrificial wear-in excluder
An end face seal especially adapted for use in severe service environments such as for sealing track pins or track rollers of crawler type tractors. The seal includes a primary annular seal ring,...
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5791653 |
Sealing ring for sliding units operating at very low temperatures
Sealing ring (1) for sliding units (3,7) operating both at very low temperatures and at high pressures, comprising at least one pair of layers (1a) of graphite-based material alternating with at...
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5785156 |
Sliding brake caliper system
A slidable brake caliper system includes a retaining pin that is slip fit within a bore of a mounting bracket to slidably retain a caliper relative to the mounting bracket. A resilient cylindrical...
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