US3610055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain drive assembly
Assignee: Rotary Hoes Ltd
•
Filing: 1970-04-30
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Granted: 1971-10-05
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Expires: 1990-04-30
Abstract
Abstract A CHAIN DRIVE ASSEMBLY PARTICULARLY FOR USE IN TRANSMITTING DRIVE TO A ROTOR CARRIED ON AN AGICULTURAL IMPLEMENT INCLUDES CHAIN SPROCKETS WHICH ARE INTERCONNECTED BY A DRIVE CHAIN. THE SPROCKETS AND CHAIN ARE LOCATED IN A SEALED CASING AND THE SPROCKETS HAVE DIFFERENT NUMBERS OF TEETH. THE CASING IS MOUNTED ON THE IMPLEMENT AND CAN BE TURNED ABOUT ITS MOUNTING POINT TO ENGAGE ONE OR OTHER OF THE SPROCKETS WITH A DRIVING SHAFT AND THEREBY VARY THE RELATIVE SPEEDS OF THE DRIVING AND DRIVEN SHAFTS.
Inventors
- 👤 David Reginald Parris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:38
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/58; B60T13/12; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |