US3135518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized radial shaft seals
Assignee: Federal Mogul Bower Bearings Inc
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Filing: 1962-04-23
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Granted: 1964-06-02
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Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Brian H Carson
- 👤 John G Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:14
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3248; F16J15/3252; F16J15/3256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
AN ANNULAR UNITIZED ASSEMBLY FOR PREVENTING LUBRICANT LOSS BETWEEN TWO RELATIVELY ROTATABLE MACHINE MEMBERS COMPRISING: A SEAL ASSEMBLY HAVING AN ANNULAR CASE WITH A RADIAL FLANGE AND AN ANNULAR RESILIENT MEMBER HAVING A SEALING LIP; AN OUTER ANNULAR CASE LOCKED TO SAID SEAL ASSEMBLY AND ADAPTED TO HAVE A STATIONARY LEAK-TIGHT FIT WITH ONE SAID MACHINE MEMBER AND HAVING AN ANNULAR RADIAL FLANGE SURROUNDING THE SECOND SAID MACHINE MEMBER AND STEPPED TO PROVIDE A RADIALLY OUTER PORTION ABUT TING THE RADIAL FLANGE OF SAID SEAL ASSEMBLY CASE AND AT AXIALLY OUTSTEPPED RADIALLY INNER PORTION SPACED AWAY THEREFROM; A METAL RING PROVIDING A GENERALLY CYLINDRICAL WEAR SLEEVE ENGAGED BY SAID SEALING LIP; AND A MOUNTING AND LOCKING RING HAVING A CYLINDRICAL ELALSTOMERIC PORTION HAVING A STATIONARY LEAK-TIGHT FIT AGAINST SAID SECOND SAID MACHINE MEMBER AND FITTING FLUSH AGAINST THE INNER PERIPHERY OF SAID WEAR SLEEVE FOR MOST OF ITS AXIAL EXTENT AND HAVING A RUBBER LIP AT ONE END ADAPTED TO ENGAGE ONE AXIAL EXTREMITY OF SAID WEAR SLEEVE AND A METAL MEMBER BONDED TO AND SUPPORTING THE OTHER END OF SAID ELASTOMERIC PORTION AND HAVING A RADIAL PORTION LYING BETWEEN SAID RADIAL FLANGE OF SAID SEAL ASSEMBLY AND SAID OUTSTEPPED IINNER RADIAL PORTION OF SAID OUTER CASE SO AS TO LOCK SAID MOUNTING AND LOCKING RING TO SAID CASES.
Claim 2
Dependent Claim
219 words
AN ANNULAR UNITIZED ASSEMBLY FOR PREVENTING LUBRICANT LOSS BETWEEN TWO RELATIVELY ROTATABLE MACHINE MEMBERS COMPRISING: A SEAL ASSEMBLY HAVING AN ANNULAR CASE WITH A RADIAL FLANGE AND AN ANNULAR RESILIENT MEMBER HAVING A SEALING LIP; AN OUTER ANNULAR CASE LOCKED TO SAID SEAL ASSEMBLY AND ADAPTED TO HAVE A STATIONARY LEAK-TIGHT FIT WITH ONE SAID MACHINE MEMBER AND HAVING AN ANNULAR RADIAL FLANGE SURROUNDING THE SECOND SAID MACHINE MEMBER AND STEPPED TO PROVIDE A RADIALLY OUTER PORTION ABUT TING THE RADIAL FLANGE OF SAID SEAL ASSEMBLY CASE AND AT AXIALLY OUTSTEPPED RADIALLY INNER PORTION SPACED AWAY THEREFROM; A METAL RING PROVIDING A GENERALLY CYLINDRICAL WEAR SLEEVE ENGAGED BY SAID SEALING LIP; AND A MOUNTING AND LOCKING RING HAVING A CYLINDRICAL ELALSTOMERIC PORTION HAVING A STATIONARY LEAK-TIGHT FIT AGAINST SAID SECOND SAID MACHINE MEMBER AND FITTING FLUSH AGAINST THE INNER PERIPHERY OF SAID WEAR SLEEVE FOR MOST OF ITS AXIAL EXTENT AND HAVING A RUBBER LIP AT ONE END ADAPTED TO ENGAGE ONE AXIAL EXTREMITY OF SAID WEAR SLEEVE AND A METAL MEMBER BONDED TO AND SUPPORTING THE OTHER END OF SAID ELASTOMERIC PORTION AND HAVING A RADIAL PORTION LYING BETWEEN SAID RADIAL FLANGE OF SAID SEAL ASSEMBLY AND SAID OUTSTEPPED IINNER RADIAL PORTION OF SAID OUTER CASE SO AS TO LOCK SAID MOUNTING AND LOCKING RING TO SAID CASES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |