Seal for a joint or juncture – Process of dynamic sealing – Peripheral radially sealing flexible projection
Reexamination Certificate
2006-01-31
2006-01-31
Pickard, Alison (Department: 3676)
Seal for a joint or juncture
Process of dynamic sealing
Peripheral radially sealing flexible projection
C277S402000, C277S562000, C277S572000
Reexamination Certificate
active
06991234
ABSTRACT:
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.
REFERENCES:
patent: 3022081 (1962-02-01), Kosatka
patent: 3086781 (1963-04-01), Hudson et al.
patent: 3135518 (1964-06-01), Carson et al.
patent: 3144558 (1964-08-01), Rhoads et al.
patent: 3356376 (1967-12-01), Bradfute et al.
patent: 3606351 (1971-09-01), Hallerback
patent: 3843139 (1974-10-01), Messenger
patent: 3847453 (1974-11-01), Herbert
patent: 4156531 (1979-05-01), Boucquey
patent: 4277072 (1981-07-01), Forch
patent: 4285526 (1981-08-01), Klinteberg et al.
patent: 4418919 (1983-12-01), Wentworth
patent: 4448426 (1984-05-01), Jackowski et al.
patent: 4457521 (1984-07-01), Morley
patent: 4491332 (1985-01-01), Zumbusch
patent: 4497495 (1985-02-01), Christiansen
patent: 4501431 (1985-02-01), Peisker et al.
patent: 4513976 (1985-04-01), Bentley et al.
patent: 4516783 (1985-05-01), Mitsue et al.
patent: 4526377 (1985-07-01), Hale et al.
patent: 4550920 (1985-11-01), Matsushima
patent: 4552367 (1985-11-01), Fedorovich et al.
patent: 4613005 (1986-09-01), Olsson
patent: 4667968 (1987-05-01), Nash et al.
patent: 4696479 (1987-09-01), Karcher
patent: 4721312 (1988-01-01), Hornberger
patent: 4808012 (1989-02-01), Otto
patent: 4819999 (1989-04-01), Livesay et al.
patent: 4856794 (1989-08-01), Boyers et al.
patent: 4936433 (1990-06-01), Kyle
patent: 4943068 (1990-07-01), Hatch et al.
patent: 5004248 (1991-04-01), Messenger et al.
patent: 5015001 (1991-05-01), Jay
patent: 5028054 (1991-07-01), Peach
patent: 5042822 (1991-08-01), Dreschmann et al.
patent: 5096207 (1992-03-01), Seeh et al.
patent: 5183269 (1993-02-01), Black et al.
patent: 5201529 (1993-04-01), Heinzen
patent: 5209499 (1993-05-01), Ruff, Jr. et al.
patent: 5209502 (1993-05-01), Savoia
patent: 5211406 (1993-05-01), Katzensteiner
patent: 5299811 (1994-04-01), Kershaw
patent: 5340125 (1994-08-01), Brown et al.
patent: 5348312 (1994-09-01), Johnston
patent: 5380015 (1995-01-01), Laflin et al.
patent: 5470157 (1995-11-01), Dougherty et al.
patent: 5480161 (1996-01-01), Borowski
patent: 5503408 (1996-04-01), Hermann et al.
patent: 5522600 (1996-06-01), Duckwall
patent: RE35309 (1996-08-01), Matsushima et al.
patent: 5577741 (1996-11-01), Sink
patent: 5582412 (1996-12-01), Sabo Filho
patent: 5607168 (1997-03-01), Dahll
patent: 5655781 (1997-08-01), Petrak
patent: 5676383 (1997-10-01), Chandler
patent: 5687972 (1997-11-01), Petrak
patent: 5716277 (1998-02-01), Reynolds
patent: 5836700 (1998-11-01), Wilkie, Jr. et al.
patent: 5944321 (1999-08-01), Niebling et al.
patent: 5975538 (1999-11-01), Krause et al.
patent: 6050572 (2000-04-01), Balsells et al.
patent: 6073933 (2000-06-01), Johnston
patent: 6149158 (2000-11-01), Tripathy
patent: 6168165 (2001-01-01), Sabo
patent: 6170833 (2001-01-01), Cox et al.
patent: 6199869 (2001-03-01), Furuyama et al.
patent: 6220600 (2001-04-01), Tripathy et al.
patent: 6257587 (2001-07-01), Toth et al.
patent: 6357751 (2002-03-01), Rentschler
patent: 6406026 (2002-06-01), Oldenburg
patent: 6450503 (2002-09-01), Dossena et al.
patent: 0 036 281 (1983-07-01), None
patent: 0 086 002 (1983-08-01), None
patent: 0 091 983 (1983-10-01), None
patent: 0 128 241 (1984-12-01), None
patent: 0 172 348 (1986-02-01), None
patent: 0 213 652 (1987-03-01), None
patent: 0 230 120 (1987-07-01), None
patent: 0 260 441 (1988-03-01), None
patent: 0 172 881 (1988-09-01), None
patent: 0 281 452 (1988-09-01), None
patent: 0 301 731 (1989-02-01), None
patent: 0 303 359 (1989-02-01), None
patent: 0 304 160 (1989-02-01), None
patent: 0 337 893 (1989-10-01), None
patent: 0 385 635 (1990-09-01), None
patent: 0 394 025 (1990-10-01), None
patent: 0 385 635 (1991-04-01), None
patent: 0 420 212 (1991-04-01), None
patent: 0 427 553 (1991-05-01), None
patent: 0 454 193 (1991-10-01), None
patent: 0 474 950 (1992-03-01), None
patent: 0 253 839 (1992-04-01), None
patent: 0 505 793 (1992-09-01), None
patent: 0 420 212 (1992-12-01), None
patent: 0 525 288 (1993-02-01), None
patent: 0 556 494 (1993-08-01), None
patent: 0 562 160 (1993-09-01), None
patent: 0 571 284 (1993-11-01), None
patent: 0 596 196 (1994-05-01), None
patent: 0 611 904 (1994-08-01), None
patent: 0 516 708 (1994-12-01), None
patent: 0 631 072 (1994-12-01), None
patent: 0 596 196 (1995-06-01), None
patent: 0 736 711 (1996-10-01), None
patent: 0 744 567 (1996-11-01), None
patent: 0 789 152 (1997-08-01), None
patent: 0 798 498 (1997-10-01), None
patent: 0 814 288 (1997-12-01), None
patent: 0 789 152 (1998-04-01), None
patent: 0 843 114 (1998-05-01), None
patent: 0 846 900 (1998-06-01), None
patent: 0 864 770 (1998-09-01), None
patent: 0 913 605 (1999-05-01), None
patent: 0 921 334 (1999-06-01), None
patent: 0 843 114 (1999-07-01), None
patent: 0 940 609 (1999-09-01), None
patent: 0 945 656 (1999-09-01), None
patent: 0 670 976 (1999-11-01), None
patent: 0 913 605 (2000-05-01), None
patent: 0 999 364 (2000-05-01), None
patent: 0 999 388 (2000-05-01), None
patent: 1 016 800 (2000-07-01), None
patent: 0 945 656 (2000-08-01), None
patent: 1 024 318 (2000-08-01), None
patent: 1 050 700 (2000-11-01), None
patent: 1 055 849 (2000-11-01), None
patent: 0 999 364 (2001-02-01), None
patent: 1 016 800 (2001-02-01), None
patent: 1 024 318 (2001-04-01), None
patent: 1 096 184 (2001-05-01), None
patent: 1 106 878 (2001-06-01), None
patent: 1 050 700 (2001-11-01), None
patent: 1 164 319 (2001-12-01), None
patent: 1 182 133 (2002-02-01), None
patent: 1 106 878 (2002-03-01), None
patent: 1 055 849 (2002-04-01), None
patent: 1 201 975 (2002-05-01), None
patent: 1 231 418 (2002-08-01), None
patent: 1 245 874 (2002-10-01), None
patent: 53-099156 (1978-08-01), None
patent: 54-132050 (1979-10-01), None
patent: 54-158556 (1979-12-01), None
patent: 55-082857 (1980-06-01), None
patent: 56-105157 (1981-08-01), None
patent: 56-138566 (1981-10-01), None
patent: 58-068552 (1983-04-01), None
patent: 59-126162 (1984-07-01), None
patent: 59-126164 (1984-07-01), None
patent: 60-139970 (1985-07-01), None
patent: 60-245874 (1985-12-01), None
patent: 62-037571 (1987-02-01), None
patent: 62-258266 (1987-11-01), None
patent: 63-071583 (1988-03-01), None
patent: 63-239314 (1988-10-01), None
patent: 2-102974 (1990-04-01), None
patent: 03-010993 (1991-01-01), None
patent: 03/020175 (1991-01-01), None
patent: 03020175 (1991-01-01), None
patent: 03-260478 (1991-11-01), None
patent: 03-265765 (1991-11-01), None
patent: 03260478 (1991-11-01), None
patent: 04-203658 (1992-07-01), None
patent: 05-223174 (1993-08-01), None
patent: 06-201054 (1994-07-01), None
patent: 06-300141 (1994-10-01), None
patent: 07-042848 (1995-02-01), None
patent: 07-071612 (1995-03-01), None
patent: 07-174238 (1995-07-01), None
patent: 07-291186 (1995-11-01), None
patent: 07-332377 (1995-12-01), None
patent: 08-004776 (1996-01-01), None
patent: 08-190268 (1996-07-01), None
patent: 08-254213 (1996-10-01), None
patent: 08-296743 (1996-11-01), None
patent: 08-338534 (1996-12-01), None
patent: 08338534 (1996-12
Dorsey & Whitney LLP
International Seal Company, Inc.
Patel Vishal
Pickard Alison
Wangerow Ronald W.
LandOfFree
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