Patent US3280649A successfully refreshed from Google Patents.
US3280649A
Expired / Lapsed
US
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Rotary motion and power transmission by rotary members slidably splined or keyed on a shaft
Assignee: A Cazeneuve SA
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Filing: 1964-06-09
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Granted: 1966-10-25
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Bruet Henri Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:07
CPC Classifications
F; F16; F16H; F16H63/00; F16H63/02; F16H63/04; F16H63/06; F16H63/065; F16H55/00; F16H55/32; F16H55/52; F16H55/56
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
IN A SPEED CHANGING CONTRIVANCE INCLUDING A SHAFT, A V-BELT PULLEY SHEAVE PART HAVING A HUB KEYING MEANS SLIDABLY KEYING SAID HUB ON SAID SHAFT, A CHAMBER PROVIDED BETWEEN SAID HUB AND SHAFT AT ONE END OF SAID KEYING MEANS, THE LATTER HAVING AT LEAST ONE KEY HOLE IN COMMUNICATION WITH SAID CHAMBER, A FURTHER CHAMBER PROVIDED WITHIN SAID HUB AT THE OTHER END OF SAID KEYING MEANS, AND MEANS FOR SUPPLYING A LIQUID UNDER PRESSURE INTO SAID LATTER CHAMBER.
References Cited (Backward Citations)
US2779203A
Cited
US3081642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |