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Class 277/381 - Frustoconical shape


Subclass of Class 277 - Seal for a joint or juncture
Definition: Made of elastomeric material wherein the spring has a frustrum
No. of patents: 33
Last issue date: 05/13/2008


NumberTitleIssue Date
7370865Assembly including face seal sized to interference fit in housing
An assembly for a tracked vehicle includes a wheel defining a wheel cavity and a face seal including a rigid sealing ring and a flexible ring disposed on the sealing ring, the flexible ring having an outermost substantially cylindrical surface defining a maximum dia...
05/13/2008
7325889Track having rotatable bushing and link for the same
In a track with a rotatable bushing which is brought into engagement with a sprocket of a track-type vehicle, it is intended that strength is enhanced rationally by link functionality sharing and by combination of such assigned functional tasks for achieving further...
02/05/2008
7293778Systems and methods for sealing between stators and rotors
A seal is used between a housing and a shaft having an axis. The seal includes a first portion and a second portion engageable with each other and movable relative to each other. The first portion and the second portion are configured to be received in a cavity betw...
11/13/2007
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
7178806Cinchpac self-loading rotary shaft seal
A seal for a conveyor drive which has an elastomer which is compressed between a cap ring and a housing. ...
02/20/2007
7108418Bearing seal assembly for concrete auger mixer and method for using same
An auger mixer for mixing a concrete mix includes an elongated mixer housing having a mixing chamber for mixing the concrete mix therein. A mixing auger is rotatably mounted within the mixing chamber. A bearing assembly mounts one end of the auger shaft to the mixer...
09/19/2006
7032905Leak resistant seal
A seal includes a resilient carrier with opposed limbs holding sealing rings that engage sealing surfaces. The seal is oriented so that a space between the limbs is exposed to a higher than ambient pressure that biases the limbs apart to increase the force pressing ...
04/25/2006
7004479Metal seal and attachment method for the same and tight-seal construction
A metal seal of ring as a whole disposed between a first contact flat face portion and a second contact flat face portion parallel to each other. This metal seal has a middle base portion, a first contact convex portion, and a second contact convex portion. The firs...
02/28/2006
6976681Slide ring seal assembly including a radial, rotation preventing arrangement
A slide ring seal assembly includes a slide ring having an axially extending annular leg. The leg has radially outer and radially inner circumferential surfaces and a free axial end. A plurality of circumferentially spaced recesses are provided in leg at the free ax...
12/20/2005
6921078Slip ring seal
Slit ring seal, especially running gear seal, consisting of an angle-shaped slip and/or opposing ring with a circumferential surface designed to accent a ring-shaped, approximately cross-sectional plate-spring shaped sealing body, where the sealing body, as needed, ...
07/26/2005
6220601Mechanical face seal device
A mechanical face seal device includes a bellows assembly comprising a bellows member of resilient material having axially spaced mounting portions interconnected by an intermediate foldable portion, one of said mounting portions being adapted to be fixed...
04/24/2001
6053506Slide ring seal assembly including a supporting ring having an embedded reinforcing body
A slide ring seal assembly includes a slide ring having a radial slide face and a circumferential conical surface; a support ring, made of an elastic material, surrounding the slide ring and having a circumferential conical surface; an annular elastic rol...
04/25/2000
5527046Seal assembly having resilient load rings
A seal assembly for sealing the area between a stationary member and a rotatable member includes first and second mating metal seal rings and first and second resilient load rings. The load rings are adapted to apply a load to the metal seal rings. Each l...
06/18/1996
4819999End face seal assembly
An end face seal assembly is disclosed for use in severe service applications, such as for use in sealing a track joint. The seal assembly includes a rubber load ring, an L-shaped metal seal ring and a polyurethane seal ring. The polyurethane seal ring is...
04/11/1989
4703939Mechanical seal with radially disposed bias component
A mechanical seal assembly disposed within a pump housing for retarding the flow and leakage of fluids and other matter from being pumped along the motor drive shaft. The mechanical seal assembly of the present invention includes a non-rotating seal ring ...
11/03/1987
4688805Annular front-sealing gasket assembly
The gasket assembly comprises an annular gasket (20) and a coaxial thrust ring. The central portion of the ring (20) is bounded by two faces (35) and (36) which are parallel and inclined so that the thickness of the central portion remains constant. The f...
08/25/1987
4653980Mechanical seal for pumps and method of fabricating same
A mechanical seal assembly for use with centrifugal pumps including at least one unitized elastomer assembly for urging the seal faces of a pair of seal rings into sealing engagement with each other. The unitized elastomer assembly serves as a seal ring m...
03/31/1987
4573691Mechanical face seals
In a mechanical face seal for producing a fluid tight seal between a pair of relatively rotatable components a first sealing element is associated with one of said components and is fixed axially with respect thereto; a second sealing element is associate...
03/04/1986
4421327Heavy duty end face seal with asymmetrical cross-section
A mechanical end face seal assembly with first and second, relatively rigid, primary seal rings of a generally T-shaped cross-section and a pair of annular secondary elastomeric seal rings. The secondary rings provide a combination of radial compressive l...
12/20/1983
4386969Ferrous alloy and abrasion resistant articles thereof
An abrasion resistant alloy consists essentially of (by weight): with not substantially more than trace quantities of sulfur, phosphorous and tungsten. The alloy is suitable for forming into sealing rings of grit seal assemblies, which rotate relative to one a...
06/07/1983
4306727Dynamic seal for rolling cutter drill bit
A dynamic seal is disclosed for sealing between a rotating cutter and a drill bit journal in an underground formation drilling bit, which seal utilizes a static elastomeric seal ring abutting a metal seal ring having a dynamic sealing face....
12/22/1981
4262914End face seal assembly
PCT No. PCT/US79/01036 Sec. 371 Date Dec. 3, 1979 Sec. 102(e) Date. Dec. 3, 1979 PCT Filed An end face seal assembly (10) has a seal ring (36), a support ring (42), and a resilient load ring (44) having individual preselected properties. The load ring (44...
04/21/1981
4256315Mechanical end face seal with dirt excluder lip
A seal and sealed mechanism adapted to prevent dirt from entering portions of the seal cavity. The seal includes at least one annular primary seal ring of generally L-shaped cross-section and having a sealing surface formed on one side of the radial flang...
03/17/1981
4247123Seals
An end face seal has a sealing bush with an external circumferential shoulder and is surrounded by an elastomeric loading sleeve which has an inwardly-directed frusto-conical diaphragm abutting the shoulder to load the sealing bush and a radial web direct...
01/27/1981
4216972Unitized face type seal
A primary face type seal is maintained in face to face engagement by secondary elastomer seals. A multi-part retainer encircles the primary and secondary seals to provide a unitizing housing for permanently locating the enclosed seals in appropriate align...
08/12/1980
4195853Mechanical shaft seal
A mechanical shaft seal has a seal ring made of rubber or the like elastic material and disposed between a housing and a floating seat. The seal ring has a poly-arcuate shape consisting of continuous arcuate portions of different diameters. The maximum ou...
04/01/1980
4189159Unitized face type seal
A primary face type seal is maintained in face to face engagement by secondary elastomer seals. A multi-part retainer encircles the primary and secondary seals to provide a unitizing housing for permanently locating the enclosed seals in appropriate align...
02/19/1980
4183542Rotating face sealing gasket, particularly for use on tracked vehicles
A rotating face sealing gasket, particularly for use on tracked vehicles, constituted by a pair of facing metal rings in mutual sliding contact, and a pair of rings of resilient material mounted on the outside of each metal ring and forming a seal one aga...
01/15/1980
4182518Sealing arrangements
A sealing arrangement between rotary shafts and structure which surrounds them particularly propeller tailshafts and the stern boss of ships. The sealing arrangement comprises two rubbing seals mounted in series along the shaft between the shaft and struc...
01/08/1980
4111436Mechanical seal
A mechanical seal assembly for installation about a shaft includes at least one floating seat having intersecting axial and radial seat sections defining an L-shaped seat, the opening of the L-shape receiving a packing therein. The packing is of a rubbery...
09/05/1978
4094514Metal alloy composition with improved wear resistance
A ferrous metal alloy and a heavy-duty grit seal having an annular ring made from the alloy. In the preferred form, the alloy includes from about 3.10% to about 3.35% carbon, not more than 1.00% manganese, from about 0.75% to about 1.40% silicon, from abo...
06/13/1978
4083569Frontal seal, in particular for tracked vehicles
A frontal seal for tracked vehicles comprises two rings one of which slides on the other with a certain pressure exerted by resilient members coaxially mounted on each ring. The rings comprise a frusto-conical portion provided, in correspondence of the ma...
04/11/1978
3940154End face seal assemblies
An improved rotary end face mechanical seal assembly particularly adapted for intermittent use in severe service environments. The seal comprises at least one relatively stiff primary sealing ring having an axially facing, radially directed end face porti...
02/24/1976
 
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