US3324979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Twin Disc Inc
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Filing: 1965-08-30
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Granted: 1967-06-13
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Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Conrad R Hilpert
- 👤 Raymond C Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:22
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; B; B66; B66D; B66D1/00; B66D1/02; B66D1/14; F16H45/00; B66D2700/00; B66D2700/01; B66D2700/0125; B66D2700/0158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
FOR USE WITH APPARATUS HAVING MEANS FOR HOISTING AND LOWERING A LOAD, A POWER TRANSMISSION CONNECTIBLE TO A POWER SOURCE AND INCLUDING HOISTING AND LOWERING POWER TRAINS HAVING A COMMON HYDRAULIC TORQUE CONVERTER AND AN OUTPUT CONNECTED TO THE CONVERTER, HYDRAULICALLY ACTUATED, FRICTION CLUTCH MEANS INTERPOSED BETWEEN THE CONVERTER AND POWER SOURCE, AND MEANS FOR SELECTIVELY AND MODULATINGLY DETERMINING OPPOSITE ROTATIONS, RESPECTIVELY,
Claim 2
Dependent Claim
62 words
FOR USE WITH APPARATUS HAVING MEANS FOR HOISTING AND LOWERING A LOAD, A POWER TRANSMISSION CONNECTIBLE TO A POWER SOURCE AND INCLUDING HOISTING AND LOWERING POWER TRAINS HAVING A COMMON HYDRAULIC TORQUE CONVERTER AND AN OUTPUT CONNECTED TO THE CONVERTER, HYDRAULICALLY ACTUATED, FRICTION CLUTCH MEANS INTERPOSED BETWEEN THE CONVERTER AND POWER SOURCE, AND MEANS FOR SELECTIVELY AND MODULATINGLY DETERMINING OPPOSITE ROTATIONS, RESPECTIVELY,
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |