Patent US3136170A successfully refreshed from Google Patents.
US3136170A
Expired / Lapsed
US
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Automatic tensioner
Assignee: Individual
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Filing: 1962-12-26
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Granted: 1964-06-09
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 James J Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:44
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1254; F16H7/1281; F16H2007/0802; F16H2007/081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A BASE PLATE, A PIVOT SHAFT SECURED TO SAID BASE, AN ARM PIVOTALLY SUPPORTED ON SAID SHAFT, AN IDLER ON THE FREE END OF SAID ARM, AN ANCHOR PIN SECURED TO SAID BASE PLATE, A SECOND PIN SECURED TO SAID ARM, AND MOVABLE THEREWITH, A COIL SPRING SURROUNDING SAID SHAFT AND HAVING ITS RESPECTIVE ENDS POSITIONED ON OPPOSITE SIDES OF SAID ANCHOR PIN AND SAID SECOND PIN AND ARRANGED SO THAT UPON A PIVOTAL MOVEMENT OF SAID ARM AND SAID SECOND PIN IN EITHER DIRECTION ON SAID SHAFT, TENSION IS BUILT UP IN SAID SPRING.
Claim 2
Independent Claim
102 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A BASE PLATE, A PIVOT SHAFT SECURED TO SAID BASE, AN ARM PIVOTALLY SUPPORTED ON SAID SHAFT, AN IDLER ON THE FREE END OF SAID ARM, AN ANCHOR PIN SECURED TO SAID BASE PLATE, A SECOND PIN SECURED TO SAID ARM, AND MOVABLE THEREWITH, A COIL SPRING SURROUNDING SAID SHAFT AND HAVING ITS RESPECTIVE ENDS POSITIONED ON OPPOSITE SIDES OF SAID ANCHOR PIN AND SAID SECOND PIN AND ARRANGED SO THAT UPON A PIVOTAL MOVEMENT OF SAID ARM AND SAID SECOND PIN IN EITHER DIRECTION ON SAID SHAFT, TENSION IS BUILT UP IN SAID SPRING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |