US3177994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-actuated clutch and brake
Assignee: BUNTING BRASS AND BROAZE Co
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Filing: 1962-08-03
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Granted: 1965-04-13
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Expires: 1982-08-03
Abstract
No abstract record available.
Inventors
- 👤 Jewson Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:23
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02; F16D67/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A DRIVE AND BRAKE MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF (A) A MAIN HOUSING, (1) A DRIVEN SHAFT, (B) A STATIONARY BEARING MEMBER, (1) REMOVABLY MOUNTED IN AN END OPENING IN ONE WALL OF THE HOUSING AND ROTATABLY SUPPORTING A PORTION OF SAID DRIVEN SHAFT EXTENDING THERETHROUGH, (C) A DRIVING SHAFT EXTENDING INTO THE OPPOSITE END OF SAID HOUSING, (D) A CLUTCH IN SAID MAIN HOUSING OPERABLE TO CAUSE DRIVING ENGAGEMENT BETWEEN SAID DRIVING AND DRIVEN SHAFTS, (E) A BRAKE FOR SAID DRIVEN SHAFT DISPOSED IN SAID MAINHOUSING INCLUDING (1) PORTIONS COOPERATING WITH SAID STATIONARY BEARING MEMBER AND (2) PORTIONS KEYED TO SAID DRIVEN SHAFT, (F) AN ANNULAR TWO-FACED PISTON SURROUNDING THE DRIVEN SHAFT IN SAID HOUSING, (1) OPERATING IN ONE AXIAL POSITION TO CAUSE ENGAGEMENT OF SAID CLUTCH, (2) AND IN ANOTHER AXIAL POSITION TO CAUSE ENGAGEMENT OF SAID BRAKE,
Claim 2
Dependent Claim
144 words
IN A DRIVE AND BRAKE MECHANISM OF THE CHARACTER DESCRIBED, THE COMBINATION OF (A) A MAIN HOUSING, (1) A DRIVEN SHAFT, (B) A STATIONARY BEARING MEMBER, (1) REMOVABLY MOUNTED IN AN END OPENING IN ONE WALL OF THE HOUSING AND ROTATABLY SUPPORTING A PORTION OF SAID DRIVEN SHAFT EXTENDING THERETHROUGH, (C) A DRIVING SHAFT EXTENDING INTO THE OPPOSITE END OF SAID HOUSING, (D) A CLUTCH IN SAID MAIN HOUSING OPERABLE TO CAUSE DRIVING ENGAGEMENT BETWEEN SAID DRIVING AND DRIVEN SHAFTS, (E) A BRAKE FOR SAID DRIVEN SHAFT DISPOSED IN SAID MAINHOUSING INCLUDING (1) PORTIONS COOPERATING WITH SAID STATIONARY BEARING MEMBER AND (2) PORTIONS KEYED TO SAID DRIVEN SHAFT, (F) AN ANNULAR TWO-FACED PISTON SURROUNDING THE DRIVEN SHAFT IN SAID HOUSING, (1) OPERATING IN ONE AXIAL POSITION TO CAUSE ENGAGEMENT OF SAID CLUTCH, (2) AND IN ANOTHER AXIAL POSITION TO CAUSE ENGAGEMENT OF SAID BRAKE,
References Cited (Backward Citations)
US2159326A
Cited
US2386220A
Cited
US2701042A
Cited
US2909255A
Cited
US2966245A
Cited
US2930460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |