US3077637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making multiple-lip seals
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1959-09-21
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Granted: 1963-02-19
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Expires: 1979-09-21
Abstract
No abstract record available.
Inventors
- 👤 Vasalie L Peickii
- 👤 Andrew M Seemann
- 👤 Robert N Haynie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:08
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0053; B29C; B29C37/00; B29C37/0003; B29C37/0014; B29C43/00; B29C43/02; B29C43/027; B29C43/18; B29C43/32; B29C43/36; B29C43/42; B29C70/00; B29C70/68; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/26; B29L2031/712
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A METHOD FOR MOLDING MULTIPLE-LIP INTEGRAL SHAFT SEALS OF THE RADIAL TYPE COMPRISING, APPLYING A COMPRESSIVE FORCE AT HIGH TEMPERATURE THROUGH AN ELASTOMERIC STOCK AGAINST ONE OF THE END MEMBERS OF A STACK OF ANNULAR CONCENTRIC PLATE-LIKE MEMBERS IN SURFACE CONTACTING RELATION HAVING THEIR PERIPHERAL MARGINS AXIALLY SPACED FROM EACH OTHER TO FORM ANNULAR RADIALLY EXTENDING LIP-FORMING CAVITIES TO THUS INDUCE FLOW OF THE STOCK FROM SAID ONE END PLATE-LIKE MEMBER TO A LOCATION ABOUT THE PERIPHERIES OF THE MEMBERS AND RADIALLY OF THE STACK TOWARD THE OPEN ENDS OF THE CAVITIES WHILE PERIPHERALLY CONFINING THE STOCK ABOUT THE STACK TO PERMIT ESCAPE OF GAS FROM BETWEEN THE SURFACES OF THE MEMBERS, AND CONTINUING THE APPLICATION OF SAID FORCE DIRECTLY AGAINST THE STOCK AND MEMBERS TO PREVENT PARTING OF THE MEMBERS IN AN AXIAL DIRECTION AS THE LIPS OF THE SEAL ARE COMPRESSED AGAINST THE END WALLS OF THE CAVITIES.
Claim 2
Independent Claim
150 words
A METHOD FOR MOLDING MULTIPLE-LIP INTEGRAL SHAFT SEALS OF THE RADIAL TYPE COMPRISING, APPLYING A COMPRESSIVE FORCE AT HIGH TEMPERATURE THROUGH AN ELASTOMERIC STOCK AGAINST ONE OF THE END MEMBERS OF A STACK OF ANNULAR CONCENTRIC PLATE-LIKE MEMBERS IN SURFACE CONTACTING RELATION HAVING THEIR PERIPHERAL MARGINS AXIALLY SPACED FROM EACH OTHER TO FORM ANNULAR RADIALLY EXTENDING LIP-FORMING CAVITIES TO THUS INDUCE FLOW OF THE STOCK FROM SAID ONE END PLATE-LIKE MEMBER TO A LOCATION ABOUT THE PERIPHERIES OF THE MEMBERS AND RADIALLY OF THE STACK TOWARD THE OPEN ENDS OF THE CAVITIES WHILE PERIPHERALLY CONFINING THE STOCK ABOUT THE STACK TO PERMIT ESCAPE OF GAS FROM BETWEEN THE SURFACES OF THE MEMBERS, AND CONTINUING THE APPLICATION OF SAID FORCE DIRECTLY AGAINST THE STOCK AND MEMBERS TO PREVENT PARTING OF THE MEMBERS IN AN AXIAL DIRECTION AS THE LIPS OF THE SEAL ARE COMPRESSED AGAINST THE END WALLS OF THE CAVITIES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |