US3235045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch-brake device and actuating mechanism
Assignee: PEERLESS ELECTRIC DIVISION OF
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Filing: 1963-12-18
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Granted: 1966-02-15
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Stephen L Pop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:41
CPC Classifications
F; F16; F16D; F16D67/00; F16D67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
A CLUTCH-BRAKE UNIT COMPRISING A PAIR OF CONCENTRIC, RELATIVELY ROTATABLE SHAFTS IN END-TO-END RELATION, FIRST AND SECOND SETS OF FRICTION MEMBERS SPACED AXIALLY ALONG ONE OF SAID SHAFTS AND ONE FRICTION MEMBER OF EACH SET BEING ROTATABLE IN UNIT WITH SAID ONE SHAFT, THE OTHER FRICTION MEMBER OF SAID FIRST FRICTION MEMBER SET BEING HELD AGAINST ROTATION AND THE OTHER FRICTION MEMBER OF SAID SECOND FRICTION MEMBER SET BEING ROTATABLE IN UNIT WITH SAID OTHER SHAFT, THE FRICTION MEMBERS OF SAID FIRST FRICTION MEMBER SET BEING RELATIVELY AXIALLY MOVABLE TO ENGAGEMENT TO IMPEDE ROTATION OF SAID ONE SHAFT AND RELATIVELY AXIALLY MOVABLE AWAY FROM ENGAGEMEN TO PROVIDE FOR UNIMPEDED ROTATION OF SAID ONE SHAFT AND RELATIVELY MEMBERS OF SAID SECOND FRICTION MEMBER SET BEING RELATIVELY AXIALLY MOVABLE TO ENGAGEMENT THUS CONNECTING SAID SHAFTS FOR UNITARY ROTATION AND RELATIVELY AXIALLY MOVABLE AWAY FROM ENGAGEMENT THUS DISCONNECTING SAID SHAFTS FROM UNITARY ROTATION, MEANS FOR PRODUCING A MAGNETIC FIELD, A BODY DISPOSED INTERMEDIATE SAID FRICTION MEMBER SETS FOR ROTATION BY SAID MAGNETIC FIELD, AND A FIXEDLY POSITIONED SLEEVE MEMBER SURROUNDING SAID ONE SHAFT INTERMEDIATE SAID FRICTION MEMBER SETS AND SAID BODY HAVING SCREW THREADED ENGAGEMENT WITH SAID SLEEVE MEMBER WHEREBY ROTATION OF SAID BODY EFFECTS AXIAL MOVEMENT OF SAID BODY AND CONSEQUENT RELATIVE AXIAL MOVEMENT OF SAID FRICTION MEMBERS.
Claim 2
Dependent Claim
216 words
A CLUTCH-BRAKE UNIT COMPRISING A PAIR OF CONCENTRIC, RELATIVELY ROTATABLE SHAFTS IN END-TO-END RELATION, FIRST AND SECOND SETS OF FRICTION MEMBERS SPACED AXIALLY ALONG ONE OF SAID SHAFTS AND ONE FRICTION MEMBER OF EACH SET BEING ROTATABLE IN UNIT WITH SAID ONE SHAFT, THE OTHER FRICTION MEMBER OF SAID FIRST FRICTION MEMBER SET BEING HELD AGAINST ROTATION AND THE OTHER FRICTION MEMBER OF SAID SECOND FRICTION MEMBER SET BEING ROTATABLE IN UNIT WITH SAID OTHER SHAFT, THE FRICTION MEMBERS OF SAID FIRST FRICTION MEMBER SET BEING RELATIVELY AXIALLY MOVABLE TO ENGAGEMENT TO IMPEDE ROTATION OF SAID ONE SHAFT AND RELATIVELY AXIALLY MOVABLE AWAY FROM ENGAGEMEN TO PROVIDE FOR UNIMPEDED ROTATION OF SAID ONE SHAFT AND RELATIVELY MEMBERS OF SAID SECOND FRICTION MEMBER SET BEING RELATIVELY AXIALLY MOVABLE TO ENGAGEMENT THUS CONNECTING SAID SHAFTS FOR UNITARY ROTATION AND RELATIVELY AXIALLY MOVABLE AWAY FROM ENGAGEMENT THUS DISCONNECTING SAID SHAFTS FROM UNITARY ROTATION, MEANS FOR PRODUCING A MAGNETIC FIELD, A BODY DISPOSED INTERMEDIATE SAID FRICTION MEMBER SETS FOR ROTATION BY SAID MAGNETIC FIELD, AND A FIXEDLY POSITIONED SLEEVE MEMBER SURROUNDING SAID ONE SHAFT INTERMEDIATE SAID FRICTION MEMBER SETS AND SAID BODY HAVING SCREW THREADED ENGAGEMENT WITH SAID SLEEVE MEMBER WHEREBY ROTATION OF SAID BODY EFFECTS AXIAL MOVEMENT OF SAID BODY AND CONSEQUENT RELATIVE AXIAL MOVEMENT OF SAID FRICTION MEMBERS.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |