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Class 277/549 - Peripheral radially sealing flexible projection (e.g., lip seal, etc.)


Subclass of Class 277 - Seal for a joint or juncture
Definition: Dynamic, circumferential contact seal wherein the seal is
No. of patents: 295
Last issue date: 04/28/2009


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NumberTitleIssue Date
7523945Sealing apparatus
By providing a projection 24 at the root of a seal lip 22, the mechanical loss caused by the seal lip is reduced while restraining the turn-over of the seal lip 22, while maintaining a stable sealing performance by letting the first side surface...
04/28/2009
7419165Seal assembly and method of manufacturing the same
A seal assembly and method for the manufacture thereof is provided. The seal assembly provides a dynamic fluid seal between a housing having a bore and a shaft having an outer running surface rotating within the bore. The seal assembly comprises a rigid carrier for ...
09/02/2008
7413164Sealing member
A rubber (elastic substance) is attached by vulcanization and an annular sealing member 4 is formed in an annular groove 3 having a step and provided in the bottom wall of a body 2 of a valve disc 1. The sealing member 4 has an ann...
08/19/2008
7401789Rack 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
7398975Rotation shaft seal
A rotation shaft seal provided with a rubber sealing portion which contacts a surface of a rotation shaft and an outer case to which the rubber sealing portion is unitedly fixed. The outer case has an inner brim portion on an inner end portion on a sealed fluid side...
07/15/2008
7384494Method of making seals from polymer laminated metallic constructions
The disclosure is directed to a method of forming a seal device. The method includes forming a laminate construction including a flexible material layer and a rigid material layer, patterning the rigid material layer after forming the laminate construction, and shap...
06/10/2008
7367739Two component seal
A pair of pivoting parts are held together with a pin, with a first part, such as a rod end of a hydraulic actuator, positioned between two flanges of a bracket, with the flanges having surfaces mating with sides surfaces of the rod end. A seal is placed in each of ...
05/06/2008
7367086String type air damper
A string type air damper includes a cylinder formed in a tubular shape, defining a guide hole at one end portion thereof, a piston, which moves in the cylinder, a helical spring for biasing the piston toward the other end portion of the cylinder, and a string member...
05/06/2008
7354191Mortar mixer and trunnion assembly
A mortar mixer includes a substantially cylindrical drum having end plates supporting trunnion assemblies, with housings, having an interior space defined by an interior surface around the paddle shaft. A first seal is located adjacent the end plate and is positione...
04/08/2008
7341258Cammed seal assembly with sealing ring having an angled leg portion and foot portion with elastomeric energizer element
A seal assembly seals first and second operational surfaces spaced apart by a gap. The first surface includes a seal groove having a base surface and first and second side surfaces. A sealing element in the seal groove has a foot portion extending parallel to the ba...
03/11/2008
7338384Propshaft boot with integrated bearing seal deflector
A power transmission device includes a housing, first and second shafts and a generally tubular boot. The housing has an aperture that at least the first shaft passes through. The first and second shafts are coupled together through a splined connection causing the ...
03/04/2008
7331919Centrifugal drum for a separator
A centrifugal drum for a separator having a vertical axis of rotation, including a drum bottom part and a drum cover fastened to the drum bottom part by a locking ring. Also included is a centering ring arranged between the drum bottom part and the drum cover such t...
02/19/2008
7326471Corner molding compositions for automotive sealant systems
An automotive sealant composite structure is provided. The composite structure includes a first piece comprising a first elastomeric component that includes an at least partially crosslinked rubber, a first olefinic thermoplastic resin component, and a second olefin...
02/05/2008
7318589Sealing device and rotation detector
A pulser ring and a second seal ring are separately formed. When a multipolar magnetic rotor of the pulser ring is bonded to an outer circumferential face of an outer cylindrical portion of an annular core portion, the multipolar magnetic rotor is opposed to a magne...
01/15/2008
7288323Vulcanized rubber composition and articles manufactured therefrom
The rubber compositions described herein have been found to have an exceptionally long life as a spring-biased actuator diaphragm material that maintains its position compressed, e.g., bolted, between opposed flanges, while maintaining excellent compressibility, low...
10/30/2007
7284526Ellipsoid roller bearing piston ring
An improved piston ring suitable for use in an internal combustion engine is disclosed comprising a plurality of races sized to receive elongate rollers disposed around the circumference thereof. The elongate rollers may be shaped as a prolate ellipsoid or other rou...
10/23/2007
7284759Mounting guard ring
A mounting guard ring for a sealing ring with at least one sealing lip, surrounding a sleeve-shaped protective ring with a supporting surface for the sealing lip disposed at the outer periphery and a holding device shaped as a grip, the protective ring being provide...
10/23/2007
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
7275701Adjustable discharge apparatus
Adjustable discharge apparatus include a first conduit apparatus with a first conduit section extending along an arcuate path about a pivot axis. A second conduit apparatus is pivotally mounted about the pivot axis in a telescoping relationship with the first condui...
10/02/2007
7264249Seal
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
7231951Tire with chafer
The present invention relates to a pneumatic tire having a pair of spaced apart bead components, a connecting carcass between said bead components, and a rubber chafer positioned around at least a portion of each of said bead components and intended for contacting a...
06/19/2007
7213660Washpipe seal
A controlled leakage seal assembly having a first stationary portion adapted to be connected in substantially fluid-tight relation to a source of drilling fluid and a second portion adapted to be connected in substantially fluid-tight relation to a rotary portion in...
05/08/2007
7207366Two-piece tire
The present invention relates to a two piece pneumatic tire comprising a carcass and a removable tread belt disposed radially about the periphery of the carcass, the tread belt and carcass meeting at an interface between a radially outermost surface of the carcass a...
04/24/2007
7201380Rotary shaft dynamic seal provided with an angular encoder device, a device including such a seal, and a method of fabricating such a seal
A dynamic seal for a rotary shaft, the seal comprising a sleeve for being constrained in rotation on the shaft and an annular lip of polymer having a low coefficient of friction to come into sliding rotary contact with a stationary casing surrounding said shaft so t...
04/10/2007
7198719Sealer holding member for membrane element and membrane element using the same
A sealer holding member for a membrane element is disposed at an end of a spiral-type membrane element on an outer circumference thereof, and allows a feed to flow into a membrane end of the membrane element. The sealer holding member includes a first annular portio...
04/03/2007
7195246Sealing material
A sealing material for sealing liquid composed of a seal main body of resin, having a U-shaped cross section and a concave groove opening to an axis direction, and an O-ring of rubber fit to the concave groove of the seal main body used for medical appliances and pa...
03/27/2007
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
7172697Seal ring holder for membrane element and membrane element
A seal ring holder for membrane elements which is capable of attaining an increase in the area of membranes packed per element; and a membrane element using the seal ring holder, are provided. The seal ring holder for membrane elements which is disposed at an end pa...
02/06/2007
7172201Sealing ring, especially radial shaft seal
A sealing ring has a sealing disk having a fastening part and a seal part. The fastening part is connected to a first stationary machine part and the seal part seals a movable machine part and is oriented in an axial direction toward an atmosphere side or a medium s...
02/06/2007
7156399Sealing device and sliding member
A sealing device comprises a sealing member brought into contact with a contact surface so as to be slidable in a predetermined sliding direction. The sealing member comprises a sliding contact portion containing a high polymer material to be brought into sliding co...
01/02/2007
7156400Slinger and wear sleeve seal assembly
A seal assembly provides a rotating portion and a rotationally fixed portion. The rotating portion includes a running sleeve, a slinger segment and an upper seal segment. The slinger segment radially extends outward of the fixed portion so as to protect the fixed po...
01/02/2007
7153029Sealing device for a wheel hub unit
Sealing device (1) for a wheel hub unit (2) which is connected to a differential (3) of a vehicle, and which is provided with a contact rolling bearing (9), the sealing device (1) being mounted in order to protect the bearing (9...
12/26/2006
7134671Lip seal having increased contact force at interface and apparatus incorporating the same
A seal having a body portion, at least one lip portion extending from the body portion, and a protrusion formed on the at least one lip portion. The lip portion and protrusion formed thereon may each include an arcuate segment wherein the arcuate segment of the prot...
11/14/2006
7131648Seal construction including a compressible spring mechanism for bearing preload
A seal assembly adapted for use in creating a seal between an axially extending shaft and a support member. The seal assembly defines an axial passage through which the shaft extends, wherein a bearing assembly is mounted to the support member and includes a station...
11/07/2006
7125020Vented high pressure shaft seal
A rotary fluid pressure device (11) having a housing (13,31), inlet and outlet ports (21,23), a gerotor gear set (15), a valve member (51) and an input-output shaft (49). A seal assembly (73) is disposed radially betw...
10/24/2006
7118114Dynamic sealing arrangement for movable shaft
A dynamic sealing arrangement for preventing leakage of a fluid along a shaft includes multiple seals and pressurized barrier sealant. According to one aspect, at least three seals are arranged along the shaft with pressurized barrier sealant between the first and s...
10/10/2006
7114726Pressurized chamber seal cartridge
A seal cartridge for a centrifugal pump includes a housing that fits within a conventional stuffing box of the pump and has a cylindrical internal surface receiving the shaft. A pair of annular grooves are provided internally of the housing adjacent respectively opp...
10/03/2006
7100924Elastomeric hinged seal
A hydrodynamic PTFE seal for a rotating part including a first portion supported by a flexible, elastomeric member and a second portion extending from the first portion past the elastomeric member along the rotating part. The second or trailing portion of the seal i...
09/05/2006
7093820Over center high deflection pressure energizing low leakage seal
A low leakage seal for separating two environments and contacting a component surface is provided. The seal includes a base and an annular rib. The annular rib is coupled to and extends from the base. The annular rib includes at least one contact surface configured ...
08/22/2006
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
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