US3360087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically actuated friction clutch having torque control means
Assignee: Twin Disc Inc
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Filing: 1966-06-06
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Granted: 1967-12-26
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Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Conrad R Hilpert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:16
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; F16D25/02; F16D25/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A HYDRAULICALLY ACTUATED FRICTION CLUTCH HAVING INPUT AND OUTPUT MEMBERS A CARRIER ROTATABLY AND AXIALLY SHIFTABLY MOUNTED ON ONE OF SAID MEMBERS, TORQUE MEASURING MEANS BETWEEN SAID ONE MEMBER AND SAID CARRIER AND ADAPTED TO MEASURE TORQUE BY RELATIVE ROTATION THEREBETWEEN, INTERLEAVED FRICTION PLATES BETWEEN THE OTHER MEMBER AND SAID CARRIER AND FORMING A DISENGAGEABLE FRICTION CLUTCH CONNECTION THEREBETWEEN, AN AXIALLY SHIFTABLE PISTON MOUNTED ON SAID CARRIER FOR ROTATIONAL AND AXIAL SHIFTING RELATIVE THERETO AND ABUTTABLE AGAINST SAID PLATED TO CAUSE CLAMP-UP TO SAID PLATES; AND PISTON AND CARRIER DEFINING AN EXPANSIBLE FLUID, CLUTCH ACTUATING CHAMBER, PASSAGE MEANS FOR SUPPLYING PRESSURE FLUID TO SAID CHAMBER TO CAUSE EXPANSION THEREOF AND CONSEQUENT AXIAL SHIFTING OF SAID PISTON AND CLAMP-UP OF SAID PLATES,
Claim 2
Dependent Claim
121 words
A HYDRAULICALLY ACTUATED FRICTION CLUTCH HAVING INPUT AND OUTPUT MEMBERS A CARRIER ROTATABLY AND AXIALLY SHIFTABLY MOUNTED ON ONE OF SAID MEMBERS, TORQUE MEASURING MEANS BETWEEN SAID ONE MEMBER AND SAID CARRIER AND ADAPTED TO MEASURE TORQUE BY RELATIVE ROTATION THEREBETWEEN, INTERLEAVED FRICTION PLATES BETWEEN THE OTHER MEMBER AND SAID CARRIER AND FORMING A DISENGAGEABLE FRICTION CLUTCH CONNECTION THEREBETWEEN, AN AXIALLY SHIFTABLE PISTON MOUNTED ON SAID CARRIER FOR ROTATIONAL AND AXIAL SHIFTING RELATIVE THERETO AND ABUTTABLE AGAINST SAID PLATED TO CAUSE CLAMP-UP TO SAID PLATES; AND PISTON AND CARRIER DEFINING AN EXPANSIBLE FLUID, CLUTCH ACTUATING CHAMBER, PASSAGE MEANS FOR SUPPLYING PRESSURE FLUID TO SAID CHAMBER TO CAUSE EXPANSION THEREOF AND CONSEQUENT AXIAL SHIFTING OF SAID PISTON AND CLAMP-UP OF SAID 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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |