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Class 277/352 - Relatively rotatable radially extending contacting sealing members (e.g., face, mechanical, etc.)


Subclass of Class 277 - Seal for a joint or juncture
Definition: Diverse and distinct dynamic seals including at least one
No. of patents: 61
Last issue date: 02/01/2011


1    
NumberTitleIssue Date
7878508Compact restictive seal for bearing housings
This invention relates to a restrictive seal of the labyrinth type of reduced external size. The invention has an inner deflector which is capable of retaining the lubricating oil within the bearing housing with great efficiency, and a highly accurate system for adj...
02/01/2011
7581734Peek coated seal surfaces
A sealing apparatus is combined in a housing, such as a motor protector housing, having a hole extending therethrough. A shaft is movably disposed through the hole. A lip is disposed about the shaft and a ring is movably disposed about the shaft between the section ...
09/01/2009
7344356Mechanical seal with bellows seating alignment
A mechanical seal having a stationary ring and a rotating portion. The rotating portion includes a runner adjacent the stationary ring, an elastomer bellows adjacent the runner, a spring retainer plate and a spacer positioned between the elastomer bellows and the sp...
03/18/2008
7311307Seal seat assembly with specialized features
A seal seat assembly utilizes a positive mechanical drive between a seal seat and the bore of a pump component, which in turn is mounted to and driven by the shaft by means of a positive mechanical engagement therebetween. The grommet accommodates the positive mecha...
12/25/2007
7275800Printing cartridge having IC device for interfacing with printing system
A printing cartridge for a printing system is provided. The printing cartridge comprises a housing configured so as to be insertable within a printing system and an integrated circuit device positioned on the housing so as to interface with the printing system when ...
10/02/2007
7258491Bearing seal assembly for agricultural applications
A contaminant-resistant bearing assembly includes a multi-lip seal with an extended shroud supported from the outer ring and projecting adjacent a stepped inner ring shoulder. A steel slinger supported from the inner ring is offset outwardly adjacent the shroud and ...
08/21/2007
7234923Scroll fluid machine having a dust seal fitted within annular groove and having ends overlapped in the wider portion of the annular groove
In a scroll fluid machine, an orbiting scroll engages with a stationary scroll to form a sealed chamber in which fluid can be compressed toward a center with revolution of the orbiting scroll with respect to the stationary scroll. An annular groove is formed near th...
06/26/2007
7204490Shaft-sealing device having an inner modular structure for combining with a rotary machine
A shaft-sealing device includes a shaft tube, a retaining ring member, a rotary ring member, a resilient ring member and a sealing ring member. The shaft tube provides with an annular end flange and engaging notches thereon. The rotary ring member also provides with...
04/17/2007
7188691Metal seal with impact-absorbing ring
Disclosed is a seal assembly for dynamically sealing between rotatable members, such as employed to seal the rolling cone of a rock bit. One preferred assembly includes an energizer, first and second seal rings, and a cushioning ring having an L-shaped cross-section...
03/13/2007
7182345Hydrodynamic brush seal
A hybrid brush seal is provided having two bundles of axially spaced seal bristles each of which are mounted in a ring shape on a first machine component with bristle ends directed at a sealing surface of the second, rotating machine component. The bristle ends are ...
02/27/2007
7090221Seal device
A seal contact surface of a seal lip member and a protruding lip member of an end face seal are separated from each other and frictional heat generated at the seal lip member due to sliding motion is prevented from being transferred to the end face seal for softenin...
08/15/2006
7014192Multistage shaft sealing apparatus
A plurality of seal units are provided between a seal housing and a rotating shaft. An inside seal unit, an outside seal unit, and at least one pair of intermediate seal units are aligned in an axial direction. The inside seal unit contacts fluid to be sealed. The o...
03/21/2006
6916022Shaft seal
A sealing assembly for extending around a rotating shaft for preventing the transmission of fluids along the shaft, in which a sealing element is biased towards the rotary sealing part; and a pusher sleeve extends between the sealing element and a housing. ...
07/12/2005
6905123Seals
A gas seal for providing a seal between a pair of relatively rotatable components is provided with a stand-still seal which will seal between the components when the components are stationary, the stand-still seal having a sealing element mounted in sealing relation...
06/14/2005
6902168Sliding element
A primary objective of the present invention is to decrease the friction coefficient of the sliding face of a sliding element and to improve its seal performance. The sliding element disposes a plurality of elongate dimples in the outer circumferential region and th...
06/07/2005
6840358Floating rod guide for monotube strut
A motor vehicle strut and a rod guide assembly for the same. The strut includes a body, a rod slidable within the body, and a guide assembly. The guide assembly includes a housing assembly with a compliant member positioned adjacent a sleeve. An aperture is formed w...
01/11/2005
6685191Mechanical seal for rotating shaft
An improved mechanical seal for a pump includes a seal cartridge slidably received inside an end plate. The cartridge includes an outer cylindrical stator member which is slidably received in the end plate and an inner cylindrical rotor which is rotatable...
02/03/2004
6629816Non-contacting clearance seal for high misalignment applications
An improved oil seal is provided for sealing passage of a rotatable shaft through an end wall of a bearing housing in a turbomachine or the like, wherein the shaft is rotatably supported within the bearing housing by oil-lubricated bearings. The improved ...
10/07/2003
6416057Brush seal
A brush seal arrangement for sealing cooperation between a shaft and a surrounding member which is relatively rotatable with respect to the shaft. The brush seal includes an annular rotor disposed in surrounding relationship to the shaft and sealed with r...
07/09/2002
6398223Mechanical face seal
A mechanical face seal comprising two seal rings for use in water pumps and other fluids, including a resilient bellows for providing a secondary seal between one seal ring and either a housing or a rotating shaft extending through an aperture in the hous...
06/04/2002
6325380Face seal assembly
A face seal assembly comprises a pair of co-operating seal rings of which one is provided for mounting on a rotary component and the other on a stationary component. The seal rings have substantially radially aligned seal faces between which during operat...
12/04/2001
6318526Compliant rod guide and seal assembly
A compliant rod guide and seal assembly for use in a damper includes an annular outer casing having a through hole and a support ring received in the outer casing. The support ring has an outer radius that is less than the inner radius of the outer casing...
11/20/2001
6299173Mechanical end face seal ring having a compliant seal face
A mechanical end face seal includes one seal ring having two elements, a seal face extension portion immediately adjacent a sealing face and a seal ring body removed from the sealing face. Each of the ring elements has a radial outer diameter dimension an...
10/09/2001
6273428Annular seal assembly, in particular for the drive shaft of a vehicle
A seal assembly which includes first and second annular screens, mounted facing each other coaxially; the first screen carries a seal member made of an elastomeric material which includes a main annular sealing lip, which extends axially from a root porti...
08/14/2001
6247545Single energizer face seal for rocks bits with floating journal bearings
The present invention is a self adjusting, volume balanced, single energizer rigid face seal for rolling cutter drill bits with floating journal bearings. Volume balancing is accomplished by utilizing a floating static seal between the rigid face seal rin...
06/19/2001
6244599Floating brush seal
A seal assembly which cooperates between relatively rotatable members for creating a sealing relationship between areas of high and low pressures. The assembly includes a face seal arrangement nonrotatably associated with one of the relatively rotatable m...
06/12/2001
6224060Pump gas seal with particle exclusion device
A gas seal construction for use on a pump to create a seal between a relatively rotatable pump shaft and housing. A flow barrier arrangement is disposed in close surrounding relationship to the shaft and cooperates with the surrounding housing axially bet...
05/01/2001
6209879Sealing apparatus
A sealing apparatus has a metal ring having a cylindrical portion and an inward flange portion bending from the open-air side end of the cylindrical portion radially inward; a first sealing member formed integral with the metal ring, and having a first ru...
04/03/2001
6183369Sealing assembly for a cross member unit for universal joints
A cross member unit for universal joints has a cross member (6) with four arms (17). Each opposing two arms (17) define a common longitudinal axis 7. A bearing bush (9) is provided per arm (17) which covers the arm (17). Rolling contact members (29), in t...
02/06/2001
6149158Unitized oil seal with PTFE sealing disk split at radially outer edge and method of manufacture
A unitized oil seal assembly (20, 220, 320,420) has a sealing disk (34, 234, 334, 434) fabricated of a single water of PTFE-based material that is split along its radially outer edge to define a pair of split sections, one of which (48, 248, 348, 438) is ...
11/21/2000
6073933Load bearing washer and dirt excluder
A washer and dirt excluder for use with a seal. The washer and dirt excluder includes a flexible ring where that ring is in contact with an outer flange. The washer and dirt excluder further includes a stopper member located at a center point of the flexi...
06/13/2000
6027122Sealing assembly for a rolling element bearing
A sealing assembly for a rolling element bearing includes first and second screens fixed respectively to first and second rings of the bearing, with each screen including a respective rigid reinforcement and a respective elastomeric covering. The first sc...
02/22/2000
5997004Hybrid floating brush seal
A hybrid floating brush seal (10) generally includes a brush (30) that encircles a rotating shaft (12). The brush (30) includes a bristle portion (32) that is carried by a holder (34). A self acting film device such as a spiral groove seal (52) is dispose...
12/07/1999
5954177Oil seal for automatic transmission
An oil seal member is compressed between a connecting pipe for supplying oil to an oil chamber of a hydraulic servo and the cylinder drum of the hydraulic servo. The cylinder drum has an interior oil chamber and turns through a predetermined angle upon op...
09/21/1999
5899460Refrigeration compressor seal
A refrigeration compressor seal for inhibiting the loss of refrigerant between a compressor shaft and a compressor housing. The seal includes a face seal comprising a seal nose and a mating ring positioned in opposing relation to the seal nose. The mating...
05/04/1999
5826884Track joint sealing assembly for sealing a track joint having ceramic and elastomeric seal portions
A track seal assembly adapted to seal a track joint includes a track link and a first ceramic seal member. The track seal further includes a first elastomeric member positioned between the track link and the first ceramic seal member. The track seal furth...
10/27/1998
5823756Scroll fluid discharging apparatus
In a scroll fluid discharging apparatus including a stationary scroll and a revolving scroll, each of the mutually engaging laps and of these scrolls and each has a first lap portion without a tip seal in contact with the mirror-finished opposed scroll su...
10/20/1998
5816784Electromagnetic actuator mechanism for centrifugal pump
An electromagnetic actuating mechanism is provided for a centrifugal pump in which a solenoid ring includes a radially inwardly projecting annular seal movable between open and closed positions with respect to a rotary seal which is mounted for rotation w...
10/06/1998
5529315Tandem seal arrangement for mechanical face seals
A three-part seal comprising an inboard, an intermediate and an outboard seal and defining two chambers, a mixing chamber between the inboard seal and the intermediate seal and a buffer chamber between the intermediate seal and the outboard seal, provides...
06/25/1996
5326074Enhanced sealing arrangement for a rotary valve shaft
A valve has an actuating shaft packing assembly for located in a valve enclosure cover for preventing leakage of process fluid into the space between the actuating shaft and the cylindrical sidewall of a bore in the cover. The assembly includes an annular...
07/05/1994
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