US3217848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free wheel transmission
Assignee: Individual
•
Filing: 1962-11-19
•
Granted: 1965-11-16
•
Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Tout-Kowsky Pierre
- 👤 Vernet Jean-Francois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:14
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/20; F16D41/206; F16D41/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A FREE WHEEL TRANSMISSION, COMPRISING IN COMBINATION, A DRIVING SHAFT, A DRUM KEYED UPON SAID DRIVING SHAFT, A PULLEY HAVING A HUB ROTATABLY MOUNTED UPON SAID SHAFT, SAID DRUM AND SAID PULLEY HAVING CONTINUING INNER RECESSES, SAID RECESSES HAVING OUTER SURFACES COMPRISING CYLINDRICAL END PORTIONS AND OUTWARDLY DIRECTED CONICAL PORTIONS, AND A HELICAL SPRING LOCATED IN BOTH SAID RECESSES AND HAVING END TURNS CONTACTING SAID CYLINDRICAL END PORTION.
Claim 2
Dependent Claim
68 words
A FREE WHEEL TRANSMISSION, COMPRISING IN COMBINATION, A DRIVING SHAFT, A DRUM KEYED UPON SAID DRIVING SHAFT, A PULLEY HAVING A HUB ROTATABLY MOUNTED UPON SAID SHAFT, SAID DRUM AND SAID PULLEY HAVING CONTINUING INNER RECESSES, SAID RECESSES HAVING OUTER SURFACES COMPRISING CYLINDRICAL END PORTIONS AND OUTWARDLY DIRECTED CONICAL PORTIONS, AND A HELICAL SPRING LOCATED IN BOTH SAID RECESSES AND HAVING END TURNS CONTACTING SAID CYLINDRICAL END PORTION.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |