[특허]Retrofittable severe duty seal for a shaft

[미국특허] Retrofittable severe duty seal for a shaft 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/32 F16J-015/34
출원번호	US-0173250 (2002-06-17)
발명자 / 주소	Oldenburg, Michael R.
출원인 / 주소	Transcom, Inc.
대리인 / 주소	Dorsey & Whitney LLP
인용정보	피인용 횟수 : 7 인용 특허 : 65

초록 ▼

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 contacting the sleeve in addition to the main sealing lip. A garter spring encircling the main sealing lip may enable the seal to operate at moderately elevated pressures. The sleeve has a radial flange at the outermost end. Elastomeric lips extend between the sleeve flange and a faceplate that terminates the outside end of the seal housing. The seal is packed with water-resistant grease and can, when installed in association with grease-packed bearings can create a permanently lubricated bearing/shaft assembly that requires no re-greasing. Resilient coatings both protect the sleeve and case and also improve leak resistance, especially when the seal is retrofitted onto shafts that have been damaged. The design provides a seal having performance that is comparable to that of dual cone face seals at a much lower cost and in a much smaller assembly. Seals made according to this design can easily be made in standard sizes that can serve as direct replacements for previously available seals.

대표청구항 ▼

1. A seal for sealing a dynamic shaft assembly, comprising: a sleeve adapted to be disposed generally coaxially around a shaft;a casing adapted to be generally arranged to surround the sleeve;a first flange extending radially outwardly from and being generally perpendicular to the sleeve;a perimeter lip extending radially outwardly from the first flange, wherein the perimeter lip physically contacts the casing;a second flange extending radially inwardly from, and generally perpendicular to the casing;a main sealing lip attached to the second flange;a faceplate having an inside face and an outside face, the inside face operably coupled to and generally perpendicular to one end of the casing; andat least one undercut lip operably coupled to the sleeve and contacting the inside face of the faceplate.2. The seal of claim 1, wherein the at least one undercut lip and the perimeter lip are constricted at least in part with an elastomeric material.3. The seal of claim 1, wherein the at least one undercut lip is attached to the first flange.4. The seal of claim 1, wherein the main sealing lip is biased with a garter spring.5. The seal of claim 1, further comprising a triple lip seal.6. The seal of claim 1, further comprising at least one excluder lip.7. The seal of claim 1, further comprising a case skirt extending radially outwardly from, and generally perpendicular to one end of the casing.8. The seal of claim 7, wherein the faceplate is attached to the case skirt.9. The seal of claim 1, wherein the faceplate is made primarily of metal and has a wiper ring extending radially inward, proximate the shaft.10. The seal of claim 1, wherein an inside diameter area of the sleeve is coated at least in part with an elastomeric material, and has a radial channel formed generally medial the two ends of the sleeve.11. The seal of claim 1, wherein an outside diameter are of the casing is coated at least in part with an elastomeric material, and has a diameter relief channel in the coating proximate an outer end of the casing.12. The seal of claim 1, further comprising a water-resistant material that fills in all of the open space between the sleeve and casing.

이 특허에 인용된 특허 (65) 인용/피인용 타임라인 분석

Duckwall Brian N. (Oklahoma City OK), Annular lubricant seal assembly with spring member.
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Dougherty John D. (Stark OH) Moldovan Mark R (Stark OH) Otto Dennis L. (Carroll OH) Varonis Orestes J. (Stark OH), Bearing seal for sensing angular velocity.
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Luigi Dossena IT; Rodolfo Sbampato IT, Box-type seal assembly, in particular for vehicle axles.
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Seeh Reinhold (Weinheim DEX) Vogt Rolf (Oftersheim DEX) Drucktenhengt Rolf (Lampertheim-Hofheim DEX), Cartridge seal with dual lipped secondary seal.
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Sabo Filho Jose (San Paul BRX), Cartridge type water stopper.
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Johnston David E. (Weinheim DEX), Cassette seal.
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Hornberger Jrg (Schriesheim DEX), Cassette seal for a shaft.
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Sink Danny R. (Chester VA), Combination lip and sleeve seal and its method of manufacture.
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Peisker Glenn (Barrington IL) Christiansen Keith (Fox River Grove IL) Jaime Gil (West Dundee IL), Composite teflon helix seal.
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Savoia Michael A. (Manchester MI), Dual lip seal and method of forming the seal.
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Nash Stephen E. (Farmington Hills MI) Pichler Gerald P. (Dearborn MI) Brooks David R. (Milford MI), Dual-lip grease-retaining and dirt-excluding shaft seal.
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Livesay Richard E. (Peoria IL) Purcell Robert J. (Washington IL) Maust Blair A. (Dunlap IL), End face seal assembly.
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Otto Dennis L. (Malvern OH), Flap seal for anti-friction bearings.
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Brown Richard C. (336 Carthage Ave. Eugene OR 97404) Oldham Gary J. (86466 Lorane Hwy. Eugene OR 97405), Gasket for radially spaced pipes.
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Fedorovich, George; Kirkland, Kenneth C.; McGraw, Jim F., Hub seal and axle assembly and method for its assembly.
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Cox Jon A. ; Lovett C. Leon ; Gold Mark N. ; Winn Laurence B., Hub seal with machinable thrust ring and lay-down sealing lip.
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Chandler Jon (Powell OH), Hydrodynamic low-torque lubricant seal with pumping projections.
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Peach Samuel O. (Saltillo MS), Idler roller bearing and seal.
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Hemann Curtis B. (Breese IL) Heyduk Lucyna (Teutopolis IL) Forbes Joseph E. (Ramsey IL) Crotser John (Vandalia IL), Lip seal for a rotary shaft.
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Johnston David E., Load bearing washer and dirt excluder.
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Jay Richard D. (Plymouth MI), Low friction seal assembly.
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Tripathy Bhawani Sankar ; Toth David Michael ; Sedlar Brent Ryan, Low installation/removal force wear sleeve and method of use.
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Laflin William O. (Grass Lake MI) Smith Stanley N. (Farmington MI), Machined shaft seal encased in an elastomeric sleeve.
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Wentworth Robert S. (Temecula CA), Mechanical seals with setting block for use with slurry pumps.
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Boyers Douglas B. (Union Lake MI) Wilkening Steven R. (Redford MI), Oil seal with antirotation ribs.
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Matsushima, Noboru, Oil seal with main lip, subsidiary lip and dust lip.
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Klaus Rentschler DE, PROTECTIVE ELEMENT FOR A SEALING ARRANGEMENT WITH AT LEAST ONE SEALING RING, SEALING ARRANGEMENT WITH SUCH A PROTECTIVE ELEMENT AS WELL AS METHOD FOR KEEPING AWAY DIRT PARTICLES FROM SUCH A SEALING A.
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Toth David Michael ; Tripathy Bhawani Sanker ; Kapcoe John C., Radial lip seal having protected porous dust excluder.
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Krause Roger W. ; Spencer Scott C. ; Ulrich Donald C., Radial lip shaft seal.
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Nagasawa Shinji (Fukushima JPX), Radial oil seal.
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Morley James P. (Arlington Heights IL), Reinforced track pin assemblies and seals therefor.
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Michael R. Oldenburg, Retrofittable severe duty seal for a shaft.
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Oldenburg Michael R., Retrofittable severe duty seal for a shaft.
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Balsells Peter J. ; Schroeder John, Rotary cartridge seals with retainer.
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Bentley Gustavus A. (Ann Arbor MI) Nash Stephen E. (Farmington Hills MI) Pichler Gerald P. (Dearborn MI), Rotating-lip grease seal.
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Mitsue Naoki (Fujisawa JPX) Takahashi Hideki (Fujisawa JPX), Seal assembly with radially overlapping seal means.
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Reynolds James T., Seal for a universal joint trunnion.
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Forch Hans (Birkenau DEX), Seal for the gap between a revolving shaft and the bore of a housing against a mixture of a liquid and a gas.
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Dahll Hans H. (Williams Bay WI), Seal incorporating a resilient sealing element.
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Kershaw Peter A. (London CAX), Seal member mounted in housing pocket by resilient retaining member.
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Dreschmann Peter (Dittelbrunn DEX) Walter Wilhelm (Oberthulba/Reith DEX), Seal with two sealing rings.
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Niebling Peter,DEX ; Langer Roland,DEX ; Eck Rudi,DEX ; Breitenbach Rainer,DEX, Seal, in particular a rolling bearing seal.
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Furuyama Hideyuki,JPX ; Anzue Kaoru,JPX ; Mizunoya Kouichi,JPX ; Yamanaka Satoshi,JPX, Sealing device.
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Heinzen Stephen R. (Morton Grove IL), Sealing device.
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Matsushima Noboru (Fukushima JPX) Wada Noriyuki (Fukushima JPX), Sealing device.
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Klinteberg G. Rune (Landskrona SEX) Johansson N. A. Bertil (Landskrona SEX) Johansson B. Lennart (Landskrona SEX) Dahlgren Christer H. (Scalv SEX), Sealing device for bearings, especially roll bearings.
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Boucquey Paul E. (Berchem-Sainte-Agathe BEX), Sealing ring for flexible toothed coupling and couplings provided with such rings.
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Katzensteiner Josef R. (Passau DEX), Sealing-modular construction.
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Sabo Alfredo Miguel,BRX, Semi integrated sealing system.
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Zumbusch Steven J. (Eden Prairie MN), Shaft seal and means to effect radial movement of sealing lip.
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Borowski Richard (Rochester NY), Shaft seal with controlled porosity elements.
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Wilkie ; Jr. Robert C. ; Galewski Robert M. ; Slemp George E., Split bearing seal.
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Hale Richard A. (Downers Grove IL) Olsson Nils O. (Glen Ellyn IL) Reiff Thomas F. (Bridgeview IL), Turn-over seal.
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Petrak Gregory H. (16488 W. 55th Dr. Golden CO 80403), Unitary oil seal assembly.
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Hatch Frederick R. (Ann Arbor MI) Riley William M. (Milan MI) Banks Thomas M. (Ypsilanti MI), Unitized exclusion seal.
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Black David D. (Elgin IL) Vering Anthony W. (Arlington IL), Unitized grit seal with removable thrust bumper.
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Tripathy Bhawani S., Unitized oil seal with PTFE sealing disk split at radially outer edge and method of manufacture.
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Jackowski Ronald A. (Algonquin IL) Peisker Glenn W. (Barrington IL), Unitized oil seals.
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Ruff ; Jr. Donald N. (Sylvania OH) Migda Mark M. (Ann Arbor MI), Unitized polytetrafluoroethylene radial lip seal.
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Petrak Gregory H. (16488 W. 55th Dr. Golden CO 80403), Unitized radial and facial seal.
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Olsson Burton K. (Park Ridge IL), Unitized seal for severe service applications.
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Messenger Edward J. (Longview TX) Fedorovich George (Longview TX), Unitized seal with unitizing joint remote from seal lip.
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Karcher Merrill (Lake Geneva WI), Unitized shaft seal assembly.
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Christiansen Paul J. (Sandusky OH), Unitized wheel bearing seal with multiple lips.
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Kyle Robert J. (Battle Creek MI), Viscous damper with molded dynamic seal.
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이 특허를 인용한 특허 (7) 인용/피인용 타임라인 분석

Greca, Gerald A.; Toth, David M., Dynamic radial shaft seal assembly with combination dust exclusion thrust pad.
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Angiulli, Pasquale; Breusa, Luca; Barban, Massimo; Miletto, Stefano; Buro, Maurizio, Gasket.
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Hatch, Frederick R.; Toth, David M., Radial shaft seal assembly with lubrication retention and debris exclusion feature and method of construction thereof.
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Hatch, Frederick R., Radial shaft seal assembly with snap in auxiliary member.
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Vom Stein, Hans-Joachim; Korte, Wolfgang; Stojek, Marcus, Seal arrangement and hinge of a chain with the seal arrangement.
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Horvath,Michael Jason; Bowler,Frank James, Shaft seal assembly.
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Larson, Richard M.; Rupp, David C.; Fernandez, Reynaldo; Stark, John; Greca, Gerald A., Shaft seal assembly.
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[미국특허] Retrofittable severe duty seal for a shaft 원문보기

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[미국특허] Retrofittable severe duty seal for a shaft 원문보기

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이 특허에 인용된 특허 (65) 인용/피인용 타임라인 분석

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