Patent US3124228A successfully refreshed from Google Patents.
US3124228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprag clutch and energizing means therefor
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:41
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07; F16D2041/0605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A SPRAG CLUTCH COMPRISING COAXIAL RACES HAVING CYLINDRICAL RACE SURFACES IN RADIALLY SPACED RELATION TO ONE ANOTHER, CIRCUMFERENTIALLY SPACED SPRAGS ORIENTED SIMILARLY IN SUCCESSION IN THE RADIAL SPACE BETWEEN SAID RACES, SAID SPRAGS HAVING FIRST AND SECOND ARCUATE, RADIALLY SPACED SURFACES FOR WEDGING ENGAGEMENT WITH AND BETWEEN SAID RACE SURFACES, AND BEING PROVIDED WITH GENERALLY RADIALLY EXTENDING SIDE SURFACES OF DIFFERENT CONTOUR ON CIRCUMFERENTIALLY OPPOSITE SIDES OF THE SPRAG, AND INDIVIDUAL ENERGIZING LEAF SPRINGS ACTING IN THE CIRCUMFERENTIAL SPACES BETWEEN SUCCESSIVE SPRAGS AND ON SAID RESPECTIVE DIFFERENTLY CONTOURED SURFACES THEREOF TO URGE EACH SPRAG TOWARD WEDGING ENGAGEMENT WITH ONE OF THE RACE SURFACES, SAID LEAF SPRINGS EACH BEING OF A GENERALLY U-SHAPED OUTLINE HAVING A BIGHT PORTION BETWEEN SPACED, CONVEXLY OUT-
Claim 2
Dependent Claim
121 words
A SPRAG CLUTCH COMPRISING COAXIAL RACES HAVING CYLINDRICAL RACE SURFACES IN RADIALLY SPACED RELATION TO ONE ANOTHER, CIRCUMFERENTIALLY SPACED SPRAGS ORIENTED SIMILARLY IN SUCCESSION IN THE RADIAL SPACE BETWEEN SAID RACES, SAID SPRAGS HAVING FIRST AND SECOND ARCUATE, RADIALLY SPACED SURFACES FOR WEDGING ENGAGEMENT WITH AND BETWEEN SAID RACE SURFACES, AND BEING PROVIDED WITH GENERALLY RADIALLY EXTENDING SIDE SURFACES OF DIFFERENT CONTOUR ON CIRCUMFERENTIALLY OPPOSITE SIDES OF THE SPRAG, AND INDIVIDUAL ENERGIZING LEAF SPRINGS ACTING IN THE CIRCUMFERENTIAL SPACES BETWEEN SUCCESSIVE SPRAGS AND ON SAID RESPECTIVE DIFFERENTLY CONTOURED SURFACES THEREOF TO URGE EACH SPRAG TOWARD WEDGING ENGAGEMENT WITH ONE OF THE RACE SURFACES, SAID LEAF SPRINGS EACH BEING OF A GENERALLY U-SHAPED OUTLINE HAVING A BIGHT PORTION BETWEEN SPACED, CONVEXLY OUT-
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |