US3262528A
Expired / Lapsed
US
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Variable fluid torque coupling
Assignee: Schwitzer Corp
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Filing: 1964-03-18
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Granted: 1966-07-26
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:50
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/042; F16; F16D; F16D35/00; F16D35/02; F16D35/021; F16D35/022; F16D35/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A FLUID COUPLING DEVICE COMPRISING A DRIVE SHAFT, DRIVEN MEANS COMPRISING AN OUTER CASING ROTATABLY MOUNTED ON SAID SHAFT, AND DEFINING A DRIVE CHAMBER THEREIN, A DRIVE DISC MOUNTED ON SAID SHAFT WITHION SAID OUTER CASING, SAID DRIVE DISC HAVING A CENTRAL HUB PORTION LOCKED TO SAID SHAFT AND A BODY PORTION EXTENDING RADIALLY OUTWARDLY FROM THE HUB PORTION, THE PERIPHERAL AREA OF SAID BODY PORTION BEING FOLDED UPON ITSELF TO PROVIDE A RADIALLY INWARDLY PROJECTING FLANGE PORTION SPACED FROM SAID BODY PORTION THEREBY DEFINING AN ANNULAR FLUID STORAGE CHAMBER WITHIN SAID DRIVE DISC, THE OUTER SURFACES OF SAID FLANGE AND BODY PORTIONS BEING DISPOSED IN CLOSE FACE-TO-FACE RELATION WITH INTERIOR SURFACES OF SAID CASING,
Claim 2
Dependent Claim
115 words
A FLUID COUPLING DEVICE COMPRISING A DRIVE SHAFT, DRIVEN MEANS COMPRISING AN OUTER CASING ROTATABLY MOUNTED ON SAID SHAFT, AND DEFINING A DRIVE CHAMBER THEREIN, A DRIVE DISC MOUNTED ON SAID SHAFT WITHION SAID OUTER CASING, SAID DRIVE DISC HAVING A CENTRAL HUB PORTION LOCKED TO SAID SHAFT AND A BODY PORTION EXTENDING RADIALLY OUTWARDLY FROM THE HUB PORTION, THE PERIPHERAL AREA OF SAID BODY PORTION BEING FOLDED UPON ITSELF TO PROVIDE A RADIALLY INWARDLY PROJECTING FLANGE PORTION SPACED FROM SAID BODY PORTION THEREBY DEFINING AN ANNULAR FLUID STORAGE CHAMBER WITHIN SAID DRIVE DISC, THE OUTER SURFACES OF SAID FLANGE AND BODY PORTIONS BEING DISPOSED IN CLOSE FACE-TO-FACE RELATION WITH INTERIOR SURFACES OF SAID CASING,
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |