US3105582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil pressure actuated clutch
Assignee: Twin Disc Inc
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Filing: 1961-03-13
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Granted: 1963-10-01
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Ziabicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:21
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/02; F16D48/0206; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; F16D25/10; F16D2048/0212; F16D2048/0227; F16D2048/0233; F16D2048/0257; F16D2048/0281; F16D2048/0284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A CLUTCH COMPRISING A PLURALITY OF ANNULAR FRICTION PLATES, PISTON MEANS MOVABLE BETWEEN POSITIONS RELEASING AND ENGAGING THE PLATES, A PASSAGE FOR CONDUCTING COOLING OIL UNDER PRESSURE TO THE INNER EDGES OF THE FRICTION PLATES, A VALVE FOR CONTROLLING FLOW THROUGH THE PASSAGE AND ADAPTED FOR MOVEMENT IN AN OPENING DIRECTION RELATIVE TO THAT OF THE PISTON MEANS IN ENGAGING DIRECTION, AND MEANS OPERABLE BY THE PISTON MEANS WHEN IN PLATE RELEASE POSITION FOR SUBSTANTIALLY CLOSING THE VALVE AND FOR FREEING THE VALVE FOR OPENING BY THE COOLING OIL PRESSURE WHEN THE PISTON MEANS IS MOVED TO ENGAGE THE PLATES.
Claim 2
Dependent Claim
100 words
A CLUTCH COMPRISING A PLURALITY OF ANNULAR FRICTION PLATES, PISTON MEANS MOVABLE BETWEEN POSITIONS RELEASING AND ENGAGING THE PLATES, A PASSAGE FOR CONDUCTING COOLING OIL UNDER PRESSURE TO THE INNER EDGES OF THE FRICTION PLATES, A VALVE FOR CONTROLLING FLOW THROUGH THE PASSAGE AND ADAPTED FOR MOVEMENT IN AN OPENING DIRECTION RELATIVE TO THAT OF THE PISTON MEANS IN ENGAGING DIRECTION, AND MEANS OPERABLE BY THE PISTON MEANS WHEN IN PLATE RELEASE POSITION FOR SUBSTANTIALLY CLOSING THE VALVE AND FOR FREEING THE VALVE FOR OPENING BY THE COOLING OIL PRESSURE WHEN THE PISTON MEANS IS MOVED TO ENGAGE THE PLATES.
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |