US3134471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure actuated clutch or brake
Assignee: Ford Motor Co
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Filing: 1960-06-29
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Granted: 1964-05-26
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Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 Howard L Croswhite
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:17
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/08; F16D41/086; F16D41/088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
AN OVERRUNNING COUPLING COMPRISING CONCENTRIC INNER AND OUTER RACES, ONE OF SAID RACES BEING FORMED WITH A RECESS, A CYLINDRICAL ROLLER DISPOSED IN SAID RECESS, SAID RECESS DEFINING A CAM SURFACE, SPRING MEANS FOR NORMALLY URGING SAID ROLLER INTO CAMMING ENGAGEMENT WITH SAID CAM SURFACE AND WITH THE OTHER RACE TO INHIBIT RELATIVE ROTATION OF SAID RACES IN ONE DIRECTION, SAID ROLLER COOPERATING WITH SAID RECESS TO PARTLY DEFINE A PRESSURE CHAMBER ON ONE SIDE OF SAID ROLLER AND AN EXHAUST CHAMBER ON THE OTHER SIDE THEREOF, PASSAGE STRUCTURE COMMUNICATING WITH SAID PRESSURE CHAMBER FOR PRESSURIZING THE SAME WHEREBY SAID ROLLER MAY BE SELECTIVELY URGED OUT OF CAMMING ENGAGEMENT WITH SAID CAM SURFACE TO ACCOMMODATE RELATIVE ROTATION OF SAID RACES IN SAID ONE DIRECTION, THE PRESSURIZED FLUID IN SAID PRESSURE CHAMBER BEING ALLOWED TO FLOW PAST SAID ROLLER INTO SAID EXHAUST CHAMBER WHEN THE LATTER IS OUT OF CAMMING ENGAGEMENT WITH SAID CAM SURFACE, AND AN EXHAUST PORT COMMUNICATING WITH SAID EXHAUST CHAMBER.
Claim 2
Dependent Claim
163 words
AN OVERRUNNING COUPLING COMPRISING CONCENTRIC INNER AND OUTER RACES, ONE OF SAID RACES BEING FORMED WITH A RECESS, A CYLINDRICAL ROLLER DISPOSED IN SAID RECESS, SAID RECESS DEFINING A CAM SURFACE, SPRING MEANS FOR NORMALLY URGING SAID ROLLER INTO CAMMING ENGAGEMENT WITH SAID CAM SURFACE AND WITH THE OTHER RACE TO INHIBIT RELATIVE ROTATION OF SAID RACES IN ONE DIRECTION, SAID ROLLER COOPERATING WITH SAID RECESS TO PARTLY DEFINE A PRESSURE CHAMBER ON ONE SIDE OF SAID ROLLER AND AN EXHAUST CHAMBER ON THE OTHER SIDE THEREOF, PASSAGE STRUCTURE COMMUNICATING WITH SAID PRESSURE CHAMBER FOR PRESSURIZING THE SAME WHEREBY SAID ROLLER MAY BE SELECTIVELY URGED OUT OF CAMMING ENGAGEMENT WITH SAID CAM SURFACE TO ACCOMMODATE RELATIVE ROTATION OF SAID RACES IN SAID ONE DIRECTION, THE PRESSURIZED FLUID IN SAID PRESSURE CHAMBER BEING ALLOWED TO FLOW PAST SAID ROLLER INTO SAID EXHAUST CHAMBER WHEN THE LATTER IS OUT OF CAMMING ENGAGEMENT WITH SAID CAM SURFACE, AND AN EXHAUST PORT COMMUNICATING WITH SAID EXHAUST CHAMBER.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |