US3276282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioning devices
Assignee: Morse Chain Co
•
Filing: 1963-12-26
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Granted: 1966-10-04
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Duncan Ian Gair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:21
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H2007/0802; F16H2007/0808; F16H2007/0863; F16H2007/0872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A TENSIONING DEVICE FOR A DRIVING CHAIN COMPRISING A BLADE HAVING A WIDTH SUBSTANTIALLY EQUAL TO THE WIDTH OF THE CHAIN AND ATTACHED AT ONE END THE FIXED FULCRUM, THE OTHER END OF SAID BLADE BEING A FLOATING FULCRUM RESTING AGAINST A GUIDE, AND A TENSIONING SPRING INTERCONNECTING THE FLOATING FULCRUM AND SAID BLADE AT SOME POINT INTERMEDIATE THE ENDS OF SAID BLADE, SAID BLADE MADE OF SYNTHETIC PLASTICS MATERIAL HAVING A HIGH COEFFICIENT OF FRICTION TO DAMPEN VIBRATION THEREOF AND THE ENDS THICKER THAN THE CENTRAL PORTION THEREOF, AND THE BODY OF SAID BLADE TAPERING ALONG THE LENGTH THEREOF.
Claim 2
Dependent Claim
100 words
A TENSIONING DEVICE FOR A DRIVING CHAIN COMPRISING A BLADE HAVING A WIDTH SUBSTANTIALLY EQUAL TO THE WIDTH OF THE CHAIN AND ATTACHED AT ONE END THE FIXED FULCRUM, THE OTHER END OF SAID BLADE BEING A FLOATING FULCRUM RESTING AGAINST A GUIDE, AND A TENSIONING SPRING INTERCONNECTING THE FLOATING FULCRUM AND SAID BLADE AT SOME POINT INTERMEDIATE THE ENDS OF SAID BLADE, SAID BLADE MADE OF SYNTHETIC PLASTICS MATERIAL HAVING A HIGH COEFFICIENT OF FRICTION TO DAMPEN VIBRATION THEREOF AND THE ENDS THICKER THAN THE CENTRAL PORTION THEREOF, AND THE BODY OF SAID BLADE TAPERING ALONG THE LENGTH THEREOF.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |