Patent US6892230B1 successfully refreshed from Google Patents.
Patent US3117432A successfully refreshed from Google Patents.
US3117432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch arrangement
Assignee: ZF Friedrichshafen AG
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Filing: 1962-04-13
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Granted: 1964-01-14
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Expires: 1982-04-13
Abstract
No abstract record available.
Inventors
- 👤 Schleicher Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:09
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
237 words
IN A CLUTCH ARRANGEMENT FOR SELECTIVELY COUPLING DRIVING AND DRIVEN SHAFT MEANS, IN COMBINATION: (A) A DISK MEMBER HAVING AN AXIS AND TWO OPPOSITE RADIALLY EXTENDING FACES; (B) TWO PRESSURE MEMBERS AXIALLY MOVABLE RELATIVE TO SAID DISK MEMBER, SAID PRESSURE MEMBERS HAVING EACH A RADIALLY EXTENDING PRESSURE FACE OPPOSITE ONE OF THE FACES OF SAID DISK MEMBER, EACH FACE OF SAID DISK MEMBER AND THE OPPOSITE PRESSURE FACE CONSTITUTING A PAIR OF FACES; (C) RESILIENT MEANS PERMANENTLY URGING SAID FACES OF EACH PAIR TOWARD EACH OTHER. (D) THE FACES FO SAID DISK MEMBER EACH BEING FORMED WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED CIRCUMFERENTIALLY ELONGATED GROOVES, EACH GROOVE HAVING A PORTION OF GREATEST AXIAL DEPTH AND TAPERING CIRCUMFERENTIALLY IN A DIRECTION AWAY FROM SAID PORTION, THE GROOVES ON ONE FACE OF SAID DISK MEMBER BEING ANGULARLY OFFSET RELATIVE TO SAID AXIS FROM THE GROOVES ON THE OTHER FACE OF SAID DISK MEMBER IN SUCH A MANNER THAT EACH GROOVE ON SAID ONE FACE IS ANGULARLY INTERPOSED BETWEEN TWO GROOVES OF THE OTHER FACE; (E) A COUPLING MEMBER OF CIRCULAR CROSS SECTION CIRCUMFERENTIALLY MOVABLE IN EACH GROOVE IN SIMULTANEOUS AXIAL ABUTMENT AGAINST THE FACES OF THE CORRESPONDING PAIR; (F) ENGAGING MEANS ON SAID DISK MEMBER FOR CONNECTING THE SAME TO ONE OF SAID SHAFT MEANS FOR JOINT ROTATION; AND (G) CONNECTING MEANS FOR OPERATIVELY CONNECTING SAID PRESSURE MEMBERS TO THE OTHER ONE OF SAID SHAFT MEANS FOR JOINT ROTATION.
Claim 2
Dependent Claim
237 words
IN A CLUTCH ARRANGEMENT FOR SELECTIVELY COUPLING DRIVING AND DRIVEN SHAFT MEANS, IN COMBINATION: (A) A DISK MEMBER HAVING AN AXIS AND TWO OPPOSITE RADIALLY EXTENDING FACES; (B) TWO PRESSURE MEMBERS AXIALLY MOVABLE RELATIVE TO SAID DISK MEMBER, SAID PRESSURE MEMBERS HAVING EACH A RADIALLY EXTENDING PRESSURE FACE OPPOSITE ONE OF THE FACES OF SAID DISK MEMBER, EACH FACE OF SAID DISK MEMBER AND THE OPPOSITE PRESSURE FACE CONSTITUTING A PAIR OF FACES; (C) RESILIENT MEANS PERMANENTLY URGING SAID FACES OF EACH PAIR TOWARD EACH OTHER. (D) THE FACES FO SAID DISK MEMBER EACH BEING FORMED WITH A PLURALITY OF CIRCUMFERENTIALLY SPACED CIRCUMFERENTIALLY ELONGATED GROOVES, EACH GROOVE HAVING A PORTION OF GREATEST AXIAL DEPTH AND TAPERING CIRCUMFERENTIALLY IN A DIRECTION AWAY FROM SAID PORTION, THE GROOVES ON ONE FACE OF SAID DISK MEMBER BEING ANGULARLY OFFSET RELATIVE TO SAID AXIS FROM THE GROOVES ON THE OTHER FACE OF SAID DISK MEMBER IN SUCH A MANNER THAT EACH GROOVE ON SAID ONE FACE IS ANGULARLY INTERPOSED BETWEEN TWO GROOVES OF THE OTHER FACE; (E) A COUPLING MEMBER OF CIRCULAR CROSS SECTION CIRCUMFERENTIALLY MOVABLE IN EACH GROOVE IN SIMULTANEOUS AXIAL ABUTMENT AGAINST THE FACES OF THE CORRESPONDING PAIR; (F) ENGAGING MEANS ON SAID DISK MEMBER FOR CONNECTING THE SAME TO ONE OF SAID SHAFT MEANS FOR JOINT ROTATION; AND (G) CONNECTING MEANS FOR OPERATIVELY CONNECTING SAID PRESSURE MEMBERS TO THE OTHER ONE OF SAID SHAFT MEANS FOR JOINT ROTATION.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |