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Class 277/402 - Flexible projection (e.g., lip seal, etc.)


Subclass of Class 277 - Seal for a joint or juncture
Definition: Particular sealing face member configuration wherein the
No. of patents: 373
Last issue date: 02/26/2008


  2                  
NumberTitleIssue Date
6056293Sealing assembly for a rotary shaft, in particular of an automotive engine water pump
A sealing assembly for a pump shaft, having a metal supporting structure, and a sealing ring in turn having a main sealing lip and a secondary lip, which extend axially in opposite directions and define an annular cavity together with a lateral surface of...
05/02/2000
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
6019571Side channel compressor
Side channel compressor, in which the gap (7) existing between the rotor (2) and the housing parts (1) surrounding the rotor (2) is sealed off using a sealing tape (8) introduced into a peripheral groove (9) provided in the corresponding wall regions of t...
02/01/2000
6015153Labyrinth sealing device and method of assembly
A dynamic labyrinth sealing device which includes a stator having an annular engagement flange on a radially inner portion thereof and a rotator having an annular engagement flange on a radially outer portion thereof. The stator annular engagement flange ...
01/18/2000
5997005Hub seal with machinable thrust ring
A hub seal for installation on the wheel end of a heavy duty trailer or truck is disclosed which includes an annular casing defining a radially outer circumferential canal, a thrust ring defined by a ring of polymeric material disposed within the circumfe...
12/07/1999
5980115Bearing seal with uniform fluid purge
A bearing seal includes a bearing housing which houses a rotatable shaft, with a flange of the shaft located outside the housing and an internal annular volume residing between the bearing housing and the shaft, the annular volume bounded at one axial end...
11/09/1999
5975534Sealing device
A sealing device designed to minimize accumulation of a fluid medium trapped therein to thereby increase a sealing performance and adapted to seal a space between inner and outer peripheral members rotatable relative to each other. The sealing device incl...
11/02/1999
5908195Labyrinth sealing device and method of assembly
A dynamic labyrinth sealing device which includes a stator having an annular engagement flange on a radially inner portion thereof and a rotator having an annular engagement flange on a radially outer portion thereof. The stator annular engagement flange ...
06/01/1999
5887875Unitary axle seal for a motor vehicle
A unitary axle seal (52) for use in an axle assembly of a motor vehicle to reduce the flow of contaminants from an exterior source (92) to an interior region (93) of the axle assembly is disclosed. The unitary axle seal (52) may be used in combination wit...
03/30/1999
5794940End 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, having a radially extending flange with a portion for conta...
08/18/1998
5725095Golf bag with putter well and lift handle
A golf bag comprising a top formed in a generally cylindrical configuration with a lower surface and an upper surface. The top is formed with spacers forming openings and with a smaller front opening constituting a generally triangular putter well. The lo...
03/10/1998
5716277Seal for a universal joint trunnion
An elastomeric seal assembly for use with a bearing cup mounted on a trunnion of a universal joint cross member includes an elastomeric seal attached to a metallic support ring. The metallic rings are pressed into the open ends of the bearing cups and are...
02/10/1998
5713579Dynamic seal
A radial seal and facial excluder seal are mounted on separate rings but installed in combination so that the excluder seal always maintains sealing engagement with its intended counterface notwithstanding wide axial assembly tolerances between the shaft ...
02/03/1998
5697620Seal assembly having first and second seals acting in series
To provide a better seal for example in an indexing arm for a machine tool to prevent swarf getting to the rubber seal, an outer spring seal is provided. The seal takes the form a closely wound coil spring formed into a ring and positioned in a slightly e...
12/16/1997
5695198Seal containing age resistors for rolling bearing
In a seal for a rolling bearing, the seal has a molding member formed from a rubber material, the molding member including a lip portion, the molding member having 0.3 to 5.0 MPa of tensile stress at 10% strain and no less than 50% of elongation at break ...
12/09/1997
5685548Seal for track-chain link having lubricant filled pockets
A track-chain link has a pin extending along and defining an axis and having a pair of ends and a radially outwardly directed cylindrical outer surface and a bushing coaxially surrounding the pin and having ends set axially inward of the pin ends and form...
11/11/1997
5655781Unitized radial and facial seal
A unitized radial and facial seal assembly intended for use between radially inner and outer relatively rotationally and axially movable members includes a facial seal which is disposed between axially spaced, radially extending flanges of a counterface a...
08/12/1997
5653448Slinger seal
Slinger seal assembly for sealing an annular space between two relatively rotatable members, i.e., an inner member, such as a rotatable shaft, and an outer member, such as a stationary housing. The slinger seal assembly shown and described includes a firs...
08/05/1997
5649710Unitized oil seals
A unitized oil seal (10) includes a wear sleeve element (12) and a seal element (14). The wear sleeve element (12) is configured to include an axially outwardly and radially inwardly tapered dust sealing surface (38). The seal element (14) is provided wit...
07/22/1997
5639099Constant velocity joint seal
A seal for use with a constant velocity joint and a transmission output component. The seal comprising a main seal body having a central axis of rotation, the main seal body including an inner wall and an outer wall and opposing first and second sides. Th...
06/17/1997
5618116Sealed thrust bearing
In a sealed thrust bearing providing a case which is formed of a corrosion resisting material and fixedly fitted to an outer race, an outer seal ring which is fixedly fitted to the outer peripheral edge of an inner race, and an inner seal ring which is fi...
04/08/1997
5613691Sealing device for universal joint with integral sealing lips and cover portion
A sealing device for an universal joint includes a lip portion arranged to be in close contact with an outer peripheral edge of a bearing cap, and a dust cover portion arranged at the outer periphery of the lip portion substantially in parallel thereto wi...
03/25/1997
5611545Bearing seal with integral encoder, equipped with an information sensor
A seal for a rolling element bearing or rolling element bearing seat wherein a packing with sealing lips is in contact with two reinforcements to which the sensor and encoder are fastened. The reinforcements have a cylindrical mounting surface. One of the...
03/18/1997
5607240Bearing sealing device and bearing sealing mechanism capable of preventing the leakage of grease
There is provided a bearing sealing device capable of substantially completely preventing a leak of grease. A taper end portion of an axial extension of the bearing sealing device has an opposite surface and a rake face that forms a specified rake angle w...
03/04/1997
5605337Pivoting seal for oil-filled rotating machine
A rotating machine has a splined primary shaft rotatably mounted in an opening of an oil-filled housing and a primary seal carried by the housing for sealingly engaging with a mating splined secondary shaft upon insertion of the secondary shaft into the h...
02/25/1997
5522600Annular lubricant seal assembly with spring member
An annular lubricant seal assembly for providing a seal between a shaft extending through a bore formed in a housing and the housing, wherein the shaft and the housing are rotatable relative to one another. The seal assembly includes an annular outer case...
06/04/1996
5492337Rotary spring loaded seal assembly
A seal assembly for a vehicle wheel assembly is provided for use between its two relatively rotatable coaxial parts, to seal the bearing chamber. The seal assembly includes a pair of nested casings forming a C-shaped recess in cross section. An annular wa...
02/20/1996
5492340Floating disk seal assembly
A seal assembly for a wheel spindle bearing is provided for use between its two relatively rotatable coaxial parts, and thus to seal the bearing chamber. The seal assembly includes an inner and outer annular casing, with at least one of the casings includ...
02/20/1996
5468209Sealing for a folding blade shaft
A reliable, wear-resistant sealing for a collecting and folding cylinder includes, on each folding blade shaft, a disk (4) which has a sealing ring (13) arranged on the collar of the side facing the oil space (6) of the folding cylinder (1). The disk (4) ...
11/21/1995
5463883Textile treating machine
There is disclosed a textile treating machine having an outer shell in which textile treating liquids may be contained, and a perforated drum for receiving textiles to be treated and having a shaft extending through an opening in one end of the shell. A b...
11/07/1995
5462290Seal means between a rotating cylinder and stationary chute
A seal device between the infeed end of a rotating cylinder and the discharge end of a stationary chute wherein the discharge end of the stationary chute is received within an opening in the infeed end of the rotating cylinder. The seal device includes a ...
10/31/1995
5454647Seal for package bearing
A package bearing includes outer and inner rings, provided with opposing raceways, and rolling elements located between the raceways. The inner ring has a flange which projects outwardly past one end of the outer ring and is provided with a radially direc...
10/03/1995
5454759Sealing assembly for a universal joint
A sealing assembly for the arms (6) of a cross member (5) of a universal joint has a seal (16) with a fixing portion (17) including a bore (18) which rests on the arm (6). In the region of its bore (18), the fixing portion (17) includes axially extending ...
10/03/1995
5441386Lubricating system for cooling fans
A lubricating system for cooling fans is provided and mainly consists of a self-lubricating bearing, an oil retaining cap, and an oil retaining ring. The oil retaining ring has a central hole, an inner portion adjacent to the central hole and having a rou...
08/15/1995
5431413Seal incorporating an encoder
A disk mountable on a rotating support has one side at least partially covered with an elastomer loaded with magnetic particles to form an encoder while the other side of said disk axially limits an annular chamber. A sealing structure attached to the dis...
07/11/1995
5407213Pack seal having passive pulser ring
A pack seal apparatus formed with a first rigid ring having a radial leg portion and an axial leg portion in an L-shaped cross section, a second rigid ring having a radial leg portion and an axial leg portion in an L-shaped cross section, the first and se...
04/18/1995
5398942Annular lubricant seal assembly
An annular lubricant seal assembly for an annular lubricant seal assembly for providing a seal between a shaft extending through a bore formed in a housing and the housing, wherein the shaft and the housing are rotatable relative to one another. The seal ...
03/21/1995
5390997End face sealing assembly device for track shoe coupling
An end face sealing assembly device (S2) comprises a seal ring (15) having an approximately parallelogrammatic cross section so that an annular lip (15c) contacts a bushing end face (4a); a support ring (14) having an approximately L-shaped cro...
02/21/1995
5370400Fluid environment sealing system
A sealing system for effecting a seal around a rotatable cylindrical shaft. The system is intended to be employed with a shaft which extends through a wall, such as a boat hull, into an aqueous environment. The system employs an elastomeric seal which def...
12/06/1994
5366358Oil free scroll vacuum pump
The invention relates specifically to a simplified and subsequently improved method to produce a scroll type vacuum pump that is capable of achieving vacuum pressures below 1 torr through the placement of at least one dynamic orbital vacuum seal between t...
11/22/1994
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