US3238803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission mechanisms incorporating play take-up means
Assignee: Individual
•
Filing: 1964-03-30
•
Granted: 1966-03-08
•
Expires: 1984-03-30
Abstract
No abstract record available.
Inventors
- 👤 Durand Francois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:22
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/12; F16H57/02; F16H57/02004; F16H2057/121; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19565; Y10T74/19575; Y10T74/1958; Y10T74/19623
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PLAY TAKE-UP TRANSMISSION MECHANISM FOR DRIVING A TOOTHED WHEEL, COMPRISING IN COMBINATION TWO DRIVING PINIONS IN MESHING ENGAGEMENT WITH SAID WHEEL; A PAIR OF SUPPORTS INDEPENDENT OF EACH OTHER, EACH ONE OF SAID SUPPORTS CARRYING ONE OF SAID PINIONS; ON THE OUTER PERIPHERY OF SAID TOOTHED WHEEL AT LEAST ONE GUIDE TRACK; ON EACH ONE OF SAID SUPPORT, BEARING MEMBERS ENGAGING SAID GUIDE TRACK; TWO REDUCTION GEARINGS EACH ADAPTED TO DRIVE ONE OF SAID PINIONS, SAID REDUCTION GEARING COMPRISING EACH AN INPUT SHAFT; A CONNECTING SHAFT OF VARIABLE LENGTH DISPOSED BETWEEN SAID INPUT SHAFTS OF SAID REDUCTION GEARINGS; AT LEAST ONE ARTICULATED COUPLING BETWEEN SAID CONNECTING SHAFT AND ONE OF SAID INPUT SHAFTS; A MOTOR COUPLED TO THE INPUT SHAFT OF ONE OF SAID REDUCTION GEARINGS;
Claim 2
Dependent Claim
127 words
A PLAY TAKE-UP TRANSMISSION MECHANISM FOR DRIVING A TOOTHED WHEEL, COMPRISING IN COMBINATION TWO DRIVING PINIONS IN MESHING ENGAGEMENT WITH SAID WHEEL; A PAIR OF SUPPORTS INDEPENDENT OF EACH OTHER, EACH ONE OF SAID SUPPORTS CARRYING ONE OF SAID PINIONS; ON THE OUTER PERIPHERY OF SAID TOOTHED WHEEL AT LEAST ONE GUIDE TRACK; ON EACH ONE OF SAID SUPPORT, BEARING MEMBERS ENGAGING SAID GUIDE TRACK; TWO REDUCTION GEARINGS EACH ADAPTED TO DRIVE ONE OF SAID PINIONS, SAID REDUCTION GEARING COMPRISING EACH AN INPUT SHAFT; A CONNECTING SHAFT OF VARIABLE LENGTH DISPOSED BETWEEN SAID INPUT SHAFTS OF SAID REDUCTION GEARINGS; AT LEAST ONE ARTICULATED COUPLING BETWEEN SAID CONNECTING SHAFT AND ONE OF SAID INPUT SHAFTS; A MOTOR COUPLED TO THE INPUT SHAFT OF ONE OF SAID REDUCTION GEARINGS;
References Cited (Backward Citations)
US1769957A
Cited
US3149499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |