US3213984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo-operated clutch transmission having friction brake means
Assignee: Borg Warner Corp
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Filing: 1961-12-29
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Granted: 1965-10-26
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Expires: 1981-12-29
Abstract
No abstract record available.
Inventors
- 👤 Leo W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/02; F16D67/00; F16D67/02; F16D67/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE COMBINATION COMPRISING: A HOUSING HAVING AN INTERIOR PORTION DRIVING AND DRIVEN SHAFTS EXTENDING INTO SAID HOUSING, CLUTCH MEANS IN SAID HOUSING COMPRISING INTERENGAGEABLE FRICTION ELEMENTS DRIVINGLY CONNECTED TO ONE OF SAID DRIVING OR DRIVEN SHAFTS AND A HYDRAULICALLY OPERATED ACTUATING ASSEMBLY ADAPTED TO PROVIDE FOR SELECTIVE ENGAGEMENT OF SAID FRICTION ELEMENTS AND A UNITARY CASING DRIVINGLY CONNECTED TO SAID DRIVING SHAFTS AND ADAPTED TO MOUNT CERTAIN OF SAID FRICTION ELEMENTS AS WELL AS SAID ACTUATING ASSEMBLY, SAID ACTUATING ASSEMBLY PARTICULARLY INCLUDING A HYDRAULICALLY ACTUATED PISTON AND AN ANNULAR BELLEVILLE DIAPHRAGM ADAPTED TO IMPART THRUST OF SAID PISTON TO SAID FRICTION ELEMENTS TO PROMOTE CLUTCH ENGAGEMENT, BRAKE MEANS MOUNTED ON SAID DRIVEN SHAFT AND HAVING AN ANNULAR PORTION SPACED RADIALLY OUTWARDLY OF SAID UNITARY CASING AND ADAPTED TO ENGAGE THE INTERIOR
Claim 2
Dependent Claim
131 words
THE COMBINATION COMPRISING: A HOUSING HAVING AN INTERIOR PORTION DRIVING AND DRIVEN SHAFTS EXTENDING INTO SAID HOUSING, CLUTCH MEANS IN SAID HOUSING COMPRISING INTERENGAGEABLE FRICTION ELEMENTS DRIVINGLY CONNECTED TO ONE OF SAID DRIVING OR DRIVEN SHAFTS AND A HYDRAULICALLY OPERATED ACTUATING ASSEMBLY ADAPTED TO PROVIDE FOR SELECTIVE ENGAGEMENT OF SAID FRICTION ELEMENTS AND A UNITARY CASING DRIVINGLY CONNECTED TO SAID DRIVING SHAFTS AND ADAPTED TO MOUNT CERTAIN OF SAID FRICTION ELEMENTS AS WELL AS SAID ACTUATING ASSEMBLY, SAID ACTUATING ASSEMBLY PARTICULARLY INCLUDING A HYDRAULICALLY ACTUATED PISTON AND AN ANNULAR BELLEVILLE DIAPHRAGM ADAPTED TO IMPART THRUST OF SAID PISTON TO SAID FRICTION ELEMENTS TO PROMOTE CLUTCH ENGAGEMENT, BRAKE MEANS MOUNTED ON SAID DRIVEN SHAFT AND HAVING AN ANNULAR PORTION SPACED RADIALLY OUTWARDLY OF SAID UNITARY CASING AND ADAPTED TO ENGAGE THE INTERIOR
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |