Patent FR752065A successfully refreshed from Google Patents.
Patent US3376756A successfully refreshed from Google Patents.
US3376756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain drive and housing arrangement
Assignee: Sanko Kiki Co Ltd
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Filing: 1965-04-07
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Granted: 1968-04-09
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Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 Yasue Setsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:00
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/30; F16H55/303; B; B66; B66D; B66D3/00; B66D3/12; F16H7/00; F16H7/06; B66D2700/00; B66D2700/02; B66D2700/023; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
CHAIN DRIVE APPARATUS FOR MOVING A CHAIN HAVING A PLURALITY OF LINKS, SAID APPARATUS COMPRISING A HOUSING HAVING CHAIN ENGAGING MEANS THEREIN; A ROTOR POSITIONED IN SAID HOUSING, SAID ROTOR HAVING A PERIPHERAL SURFACE HAVING CHAIN ENGAGING MEANS; MEANS POSITIONING SAID CHAIN IN SAID HOUSING BETWEEN THE CHAIN ENGAGING MEANS OF SAID HOUSING AND THE CHAIN ENGAGING MEANS OF SAID ROTOR WITH THE CHAIN ENGAGING MEANS OF SAID HOUSING IN ENGAGEMENT WITH SELECTED LINKS OF SAID CHAIN AND WITH THE CHAIN ENGAGING MEANS OF SAID ROTOR IN ENGAGEMENT WITH SELECTED OTHER LINKS OF SAID CHAIN; AND SHAFT MEANS TURNABLY MOUNTED IN SAID HOUSING AND HAVING AN ECCENTRIC PORTION EXTENDING INTO SAID ROTOR AND MOUNTING SAID ROTOR FOR ECCENTRIC ROTATION RELATIVE TO SAID HOUSING, SAID SHAFT MEANS BEING ROTATABLE TO DRIVE SAID CHAIN IN ONE OF A CLOCKWISE AND COUNTERCLOCKWISE DIRECTION BY ENGAGING AND DISENGAGING SAID CHAIN FROM SAID HOUSING AND ROTOR CHAIN ENGAGING MEANS.
Claim 2
Dependent Claim
154 words
CHAIN DRIVE APPARATUS FOR MOVING A CHAIN HAVING A PLURALITY OF LINKS, SAID APPARATUS COMPRISING A HOUSING HAVING CHAIN ENGAGING MEANS THEREIN; A ROTOR POSITIONED IN SAID HOUSING, SAID ROTOR HAVING A PERIPHERAL SURFACE HAVING CHAIN ENGAGING MEANS; MEANS POSITIONING SAID CHAIN IN SAID HOUSING BETWEEN THE CHAIN ENGAGING MEANS OF SAID HOUSING AND THE CHAIN ENGAGING MEANS OF SAID ROTOR WITH THE CHAIN ENGAGING MEANS OF SAID HOUSING IN ENGAGEMENT WITH SELECTED LINKS OF SAID CHAIN AND WITH THE CHAIN ENGAGING MEANS OF SAID ROTOR IN ENGAGEMENT WITH SELECTED OTHER LINKS OF SAID CHAIN; AND SHAFT MEANS TURNABLY MOUNTED IN SAID HOUSING AND HAVING AN ECCENTRIC PORTION EXTENDING INTO SAID ROTOR AND MOUNTING SAID ROTOR FOR ECCENTRIC ROTATION RELATIVE TO SAID HOUSING, SAID SHAFT MEANS BEING ROTATABLE TO DRIVE SAID CHAIN IN ONE OF A CLOCKWISE AND COUNTERCLOCKWISE DIRECTION BY ENGAGING AND DISENGAGING SAID CHAIN FROM SAID HOUSING AND ROTOR CHAIN ENGAGING MEANS.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |