US3154309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary seal
Assignee: Bank of America Illinois
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Filing: 1961-05-31
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Granted: 1964-10-27
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Robert M Voitik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:49
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3464; F16J15/348
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
IN A SHAFT ASSEMBLY HAVING A ROTATABLE SHAFT PASSING THROUGH A HOUSING, A SEAL COMPRISING, IN COMBINATION, AN ANNULAR CUP SURROUNDING SAID SHAFT AND MOUNTED IN SAID HOUSING, AN ANNULAR STATOR SEALED WITHIN SAID CUP AND DEFINING AN ANNULAR SURFACE CLOSELY SURROUNDING SAID SHAFT AND DISPOSED SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE SHAFT, A SEALING RING FITTED ON SAID SHAFT WITHIN SAID CUP, SAID RING HAVING AN ANNULAR SURFACE ABUTTING SAID STATOR WALL SURFACE, SAID CUP HAVING A LIP GENERALLY FACING SAID STATOR WALL SURFACE, A RETAINING RING SECURED ABOUT SAID SEALING RING, SAID RETAINING RING HAVING A CAMMING SURFACE FACING SAID LIP AND DISPOSED AT AN ACUTE ANGLE WITH RESPECT TO THE AXIS OF SAID SHAFT, SAID LIP BEING SPACED FROM SAID SHAFT SUFFICIENTLY FAR TO PERMIT SAID SEALING RING AND RETAINING RING TO BE REMOVED FROM SAID CUP, AND A GARTER SPRING INTERPOSED BETWEEN SAID CAMMING SURFACE AND SAID LIP SO AS TO RESILIENTLY URGE SAID ANNULAR SURFACES TOGETHER AND RELEASABLY SECURE SAID SEALING RING WITHIN SAID CUP.
Claim 2
Dependent Claim
171 words
IN A SHAFT ASSEMBLY HAVING A ROTATABLE SHAFT PASSING THROUGH A HOUSING, A SEAL COMPRISING, IN COMBINATION, AN ANNULAR CUP SURROUNDING SAID SHAFT AND MOUNTED IN SAID HOUSING, AN ANNULAR STATOR SEALED WITHIN SAID CUP AND DEFINING AN ANNULAR SURFACE CLOSELY SURROUNDING SAID SHAFT AND DISPOSED SUBSTANTIALLY PERPENDICULAR TO THE AXIS OF THE SHAFT, A SEALING RING FITTED ON SAID SHAFT WITHIN SAID CUP, SAID RING HAVING AN ANNULAR SURFACE ABUTTING SAID STATOR WALL SURFACE, SAID CUP HAVING A LIP GENERALLY FACING SAID STATOR WALL SURFACE, A RETAINING RING SECURED ABOUT SAID SEALING RING, SAID RETAINING RING HAVING A CAMMING SURFACE FACING SAID LIP AND DISPOSED AT AN ACUTE ANGLE WITH RESPECT TO THE AXIS OF SAID SHAFT, SAID LIP BEING SPACED FROM SAID SHAFT SUFFICIENTLY FAR TO PERMIT SAID SEALING RING AND RETAINING RING TO BE REMOVED FROM SAID CUP, AND A GARTER SPRING INTERPOSED BETWEEN SAID CAMMING SURFACE AND SAID LIP SO AS TO RESILIENTLY URGE SAID ANNULAR SURFACES TOGETHER AND RELEASABLY SECURE SAID SEALING RING WITHIN SAID CUP.
References Cited (Backward Citations)
US2251195A
Cited
DE1040859B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |