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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


1                    
NumberTitleIssue Date
7334942Dual seal assembly for bearing
A dual seal assembly for a bearing, the assembly comprising a first seal frame (12) coupled to a tip end of an opening in a space formed between an inner ring and an outer ring of the bearing and press-fitted to the outer ring; a second seal frame (14)...
02/26/2008
7282908Surveying device for the running parameters of railway bearings
Surveying device (1) for the running parameters of railway contact bearings (2) which is provided with a rotating race (3) and a non-rotating race (4) which are coaxial to a rotation axis (A) of the railway contact bearing (2) itse...
10/16/2007
7226133Environment protector air compressor pressurized wheel hub
A pressurized wheel hub formed from an air-tight sealing arrangement located on each end of a wheel hub to form a closed air system in the interior of the wheel hub. The closed air system fluidly coupled to a DC power air compressor for receiving pressurized air. A ...
06/05/2007
7182346Multistage oil seal against different cutting fluids for a machine tool motor
A multistage oil seal (4) includes a plurality of lips (7a, 7b, 7c) in a plurality of stages disposed around a motor shaft (1) of a machine tool along the axis of the motor shaft to protect internal members of ...
02/27/2007
7174990Tangential stress reduction system in a loudspeaker suspension
The invention is a suspension element having an outer edge and an inner edge. The suspension element, such as a spider or surround, varies in shape along at least a portion of the suspension element to help relieve both the radial and tangential stress placed on the...
02/13/2007
7159871Retrofittable severe duty seal for a shaft
A unitary sleeve lip seal can be used to provide permanently lubricated sealed bearings in severe service conditions such as the track pins of track-driven vehicles and agricultural equipment. The seal has a labyrinthine exclusion path and multiple dust lips contact...
01/09/2007
7125084Environment protector-pressurized wheel hub
A hub cap for a wheel hub having a cylindrical housing with a closed first end and an open second end adapted for attachment in an air-tight sealing arrangement to the outer end of a wheel hub to form a closed air system in the interior of the wheel hub. An air pres...
10/24/2006
7066467Sealing device for water pump bearings
A sealing device for a water pump bearing employs a seal member without an axial lip, and having only a radial lip. The sealing device includes an annular seal member which is fixed to a shoulder portion of one end in an axial direction of an outer race of a water p...
06/27/2006
7055828Shaft seal
A lubricant seal assembly has an outer seal component and a separate inner wear sleeve. The outer seal component has a carrier and a PTFE seal element which lays down against the wear sleeve to provide a seal collar extending to an oil side of the seal assembly. The...
06/06/2006
7017723Electromagnetic clutch and rotation transmission device
The magnetic attraction force of an electromagnetic coil in an electromagnetic clutch is increased in a limited installation space, thereby improving reliability of operation. The dimensions of a field core housing the electromagnetic coil and a rotor are optimized ...
03/28/2006
7017974Rotary door operator
A cover arrangement for a rotary door operator of a transit vehicle includes a cover with a cavity for encasing the components of the rotary door operator and with an aperture for engaging an elastomer seal coupled around an output shaft of the rotary door operator....
03/28/2006
7004474Seal for an endless track
A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross se...
02/28/2006
6991234Retrofittable severe duty seal for a shaft
A unitary sleeve lip seal can be used to provide permanently lubricated sealed bearings in severe service conditions such as the track pins of track-driven vehicles and agricultural equipment. The seal has a labyrinthine exclusion path and multiple dust lips contact...
01/31/2006
6953193Sealing apparatus
To reduce a sliding resistance to the rotation member, and whereby to reduce a torque, a thickness of an inner diameter side lip is formed to be larger than a thickness of an outer diameter side lip, and the outer diameter side lip is formed thinner than the inner d...
10/11/2005
6951337Shaft seal with elastic sealing lip
A V-ring seal is disclosed for sealing between relatively rotatable surfaces in which the V-ring seal comprises PTFE and includes a body with an inner side for abutting against a first surface and a lip extending from the body towards a second surface, the lip inclu...
10/04/2005
6814668Universal joint with venting seal assembly
A universal joint includes a pair of bifurcated yokes interconnected by a cruciform. The cruciform includes four orthogonal trunnions each including a lubricant passage. A seal includes a plurality of protrusions engaging a portion of the trunnion to provide a purgi...
11/09/2004
6783129Sealing 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 (33B) in sliding contact with a...
08/31/2004
6736731Cross member unit for universal joints having a trunnion seal
A cross member unit for universal joints has a cross member (6) with four trunnions (17). Each two trunnions define a common longitudinal axis (7). Each trunnion (17) has an end face (18), a first sealing face (21) and a pre...
05/18/2004
6726212Retrofittable severe duty seal for a shaft
A unitary sleeve lip seal can be used to provide permanently lubricated sealed bearings in severe service conditions such as the track pins of track-driven vehicles and agricultural equipment. The seal has a labyrinthine exclusion path and multiple dust lips contact...
04/27/2004
6682076Combination seal ring encoder
A combination seal ring with an encoder for use to close off the opening of the space between a fixed ring and a rotational ring and to detect a rotational speed of the rotational ring, comprising a seal ring secured to the fixed ring, a metal slinger sec...
01/27/2004
6620361Method of manufacturing a composite seal
A method of fabricating a fluid seal for sealing a relatively rotatable member, wherein the fluid seal has an elastomeric sealing member bonded to a PTFE insert. A wafer of PTFE material has a body portion and an end portion of a greater thickness than th...
09/16/2003
6497514Sealing device for a flanged bearing
Sealing device for a flanged bearing for a wheel hub in which the flanged ends (13) of the outer race (11) have the metallic rings (14) of a sealing device (15) pressed on to their internal surfaces; each metallic ring (14) incorporates a rubber element (...
12/24/2002
6464228Method of using a retrofittable severe duty seal for a shaft
The present invention discloses a method of sealing dynamic shaft applications. The method comprises providing a dynamic shaft assembly containing a bore for receiving a seal, providing a unitized seal, and placing the unitized seal on the shaft, thus sea...
10/15/2002
6460635Load responsive hydrodynamic bearing
A load responsive hydrodynamic bearing is provided in the form of a thrust bearing or journal bearing for supporting, guiding and lubricating a relatively rotatable member to minimize wear thereof responsive to relative rotation under severe load. In the ...
10/08/2002
6443459Sealing arrangement between two components rotating relative to one another
Sealing arrangement between relatively rotatable components that includes a first component having a cylindrical circumferential surface on one of an interior and exterior circumference, and a second component having a ring groove open toward the circumfe...
09/03/2002
6435515Seal assembly for installation on shafts of mixers for concrete, mortar and similar mixtures
The present invention relates to a seal assembly for installation on shafts of mixers for concrete, mortar and similar mixtures, of the type comprising sliding rings in oil bath, characterised in that it also comprises, on the side facing the inside of th...
08/20/2002
6422818Lubricating system for thermal medium delivery parts in a gas turbine
Cooling steam delivery tubes extend axially along the outer rim of a gas turbine rotor for supplying cooling steam to and returning spent cooling steam from the turbine buckets. Because of the high friction forces at the interface of the tubes and support...
07/23/2002
6406026Retrofittable severe duty seal for a shaft
A unitary sleeve lip seal can be used to provide permanently lubricated sealed bearings in severe service conditions such as the track pins of track-driven vehicles and agricultural equipment. The seal has a labyrinthine exclusion path and multiple dust l...
06/18/2002
6375195Sealing assembly
The present invention relates to a sealing assembly for use in a rolling mill in which a reliable and rigid mounting surface on the seal end plate and a detachable seal retaining plate improves the efficiency of the coolant seal without need of separate f...
04/23/2002
6315296Flangeless retrofittable severe duty seal for a shaft
A unitary sleeve lip seal can be used to provide permanently lubricated sealed bearings in severe service conditions such as the track pins of track-driven vehicles and agricultural equipment. The seal has a labyrinthine exclusion path and multiple dust l...
11/13/2001
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
6293374Drum brake seal structure for all-terrain vehicle wheel
A drum brake includes a brake drum attached to an axle, and a brake panel. The brake drum includes a disc portion and a cylindrical portion extending from an outer peripheral end portion of the disc portion towards the brake panel. On an outer peripheral ...
09/25/2001
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
6254366Replaceable seal having a friction fit
A replaceable seal for a rotor in a rotary fluid machine has a unitary body with integrally formed longitudinal and radial seal portions secured by a friction fit in grooves in the rotor. The longitudinal seal portion includes an outwardly biased seal lip...
07/03/2001
6217219Bearing 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...
04/17/2001
6209880Auger hopper seal
An auger hopper seal for a pivotable auger is provided according to the invention. The auger hopper seal includes a hopper for a pivotable auger at an intake end of the auger, the hopper having a rear wall located underneath a storage tank, side walls ext...
04/03/2001
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
6196551Radial lip seal with integral splash lip
A seal structure has a seal lip and a splash lip. The splash lip is disposed to contact a rotating shaft at an axial location intermediate the seal lip and a support bushing to prevent a high velocity oil stream, departing between the bushing and the shaf...
03/06/2001
6173961Seal assembly
An improved seal assembly (142) is used in a power steering system (10) having an axially reciprocatable shaft (36). The seal assembly (142) has an inner side (164) which is exposed to hydraulic fluid. The seal assembly (142) includes a flexible lip (148)...
01/16/2001
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
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