Patent US5697196A successfully refreshed from Google Patents.
Patent US3324980A successfully refreshed from Google Patents.
US3324980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomer cage for sprag members
Assignee: Borg Warner Corp
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Filing: 1965-07-06
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Granted: 1967-06-13
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Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 John A Rojic
- 👤 Daniel M Wade
- 👤 Robert J Curran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:19
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A SPRAG CLUTCH ASSEMBLY COMPRISING: A DRIVING MEMBER AND A DRIVEN MEMBER, RELATIVELY ROTATABLE IN DRIVING AND OVERRUNNING DIRECTIONS WITH RESPECT TO EACH OTHER, AND DISPOSED CONCENTRICALLY ABOUT AN AXIS IN SPACED RELATION TO EACH OTHER DEFINING AN ANNULAR SPACE THEREBETWEEN; AN ANNULAR CARRIER MEMBER DISPOSED BETWEEN SAID DRIVING AND DRIVEN MEMBERS PROVIDED WITH A SERIES OF ARCUATELY SPACED APERTURES EXTENDING RADIALLY THROUGH SAID CARRIER COMMUNICATING WITH SAID DRIVING AND DRIVEN MEMBERS; A PLURALITY OF SPRAGS EACH ROCKINGLY DISPOSED IN A RESPECTIVE APERTURE OF SAID CARRIER HAVING WEDGING END SURFACES ADAPTED TO INTERLOCK SAID MEMBERS RESPONSIVE TO ROCKING MOVEMENT IN ONE DIRECTION AND BEING DISENGAGEABLE FROM SAID MEMBERS RESPONSIVE TO ROCKING MOVEMENT IN THE OTHER DIRECTION, EACH SPRAG HAVING AN INDENTED SIDE PORTION: AND A PLURALITY OF ELASTICALLY RESILIENT ENERGIZING TABS OF RUBBERLIKE MATERIAL IN SAID CARRIER; EACH PROJECTING INTO A RESPECTIVE APERTURE FOR ENGAGEMENT WITH THE INDENTED SIDE PORTION OF A RESPECTIVE SPRAG, SAID TAB RESILIENT URGING SAID SPRAG INTO ENGAGEMENT WITH SAID MEMBERS WHEN ROTATING IN THE DRIVING DIRECTION AND PROVIDING A RESILIENT STOP FOR SAID SPRAG WHEN SAID MEMBERS ARE ROTATING IN THE OVERRUNNING DIRECTION.
Claim 2
Dependent Claim
188 words
A SPRAG CLUTCH ASSEMBLY COMPRISING: A DRIVING MEMBER AND A DRIVEN MEMBER, RELATIVELY ROTATABLE IN DRIVING AND OVERRUNNING DIRECTIONS WITH RESPECT TO EACH OTHER, AND DISPOSED CONCENTRICALLY ABOUT AN AXIS IN SPACED RELATION TO EACH OTHER DEFINING AN ANNULAR SPACE THEREBETWEEN; AN ANNULAR CARRIER MEMBER DISPOSED BETWEEN SAID DRIVING AND DRIVEN MEMBERS PROVIDED WITH A SERIES OF ARCUATELY SPACED APERTURES EXTENDING RADIALLY THROUGH SAID CARRIER COMMUNICATING WITH SAID DRIVING AND DRIVEN MEMBERS; A PLURALITY OF SPRAGS EACH ROCKINGLY DISPOSED IN A RESPECTIVE APERTURE OF SAID CARRIER HAVING WEDGING END SURFACES ADAPTED TO INTERLOCK SAID MEMBERS RESPONSIVE TO ROCKING MOVEMENT IN ONE DIRECTION AND BEING DISENGAGEABLE FROM SAID MEMBERS RESPONSIVE TO ROCKING MOVEMENT IN THE OTHER DIRECTION, EACH SPRAG HAVING AN INDENTED SIDE PORTION: AND A PLURALITY OF ELASTICALLY RESILIENT ENERGIZING TABS OF RUBBERLIKE MATERIAL IN SAID CARRIER; EACH PROJECTING INTO A RESPECTIVE APERTURE FOR ENGAGEMENT WITH THE INDENTED SIDE PORTION OF A RESPECTIVE SPRAG, SAID TAB RESILIENT URGING SAID SPRAG INTO ENGAGEMENT WITH SAID MEMBERS WHEN ROTATING IN THE DRIVING DIRECTION AND PROVIDING A RESILIENT STOP FOR SAID SPRAG WHEN SAID MEMBERS ARE ROTATING IN THE OVERRUNNING DIRECTION.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |