US3117463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing gear chain tensioning device
Assignee: Ford Motor Co
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Filing: 1961-10-26
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Granted: 1964-01-14
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Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Brian N Brindle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:29
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/0848; F16H2007/0802; F16H2007/081; F16H2007/0853
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A TENSIONING DEVICE FOR A MECHANISM HAVING A ROTATING MEMBER DRIVEN BY AN ENDLESS FLEXIBLE MEMBER COMPRISING PRELOAD MEANS ENGAGING SAID ENDLESS FLEXIBLE MEMBER FOR EXERTING A TENSIONING FORCE THEREON, A PIVOTALLY SUPPORTED CAM MEMBER OF PROGRESSIVELY INCREASING RADIUS COOPERATING WITH SAID PRELOAD MEANS FOR INCREASING THE TENSION ON SAID ENDLESS FLEXIBLE MEMBER, AND BIASING MEANS EXERTING A ROTATIONAL FORCE UPON SAID CAM MEANS FOR MAINTAINING A UNIFORM TENSIONING FORCE UPON SAID ENDLESS FLEXIBLE MEMBER, SAID TENSIONING DEVICE INCLUDING LOCKING MEANS FOR PERMITTING PIVOTAL MOVEMENT OF SAID CAM MEMBER IN A FIRST DIRECTION AND FOR PRECLUDING PIVOTAL MOVEMENT OF SAID CAM MEMBER IN A SECOND DIRECTION.
Claim 2
Dependent Claim
106 words
A TENSIONING DEVICE FOR A MECHANISM HAVING A ROTATING MEMBER DRIVEN BY AN ENDLESS FLEXIBLE MEMBER COMPRISING PRELOAD MEANS ENGAGING SAID ENDLESS FLEXIBLE MEMBER FOR EXERTING A TENSIONING FORCE THEREON, A PIVOTALLY SUPPORTED CAM MEMBER OF PROGRESSIVELY INCREASING RADIUS COOPERATING WITH SAID PRELOAD MEANS FOR INCREASING THE TENSION ON SAID ENDLESS FLEXIBLE MEMBER, AND BIASING MEANS EXERTING A ROTATIONAL FORCE UPON SAID CAM MEANS FOR MAINTAINING A UNIFORM TENSIONING FORCE UPON SAID ENDLESS FLEXIBLE MEMBER, SAID TENSIONING DEVICE INCLUDING LOCKING MEANS FOR PERMITTING PIVOTAL MOVEMENT OF SAID CAM MEMBER IN A FIRST DIRECTION AND FOR PRECLUDING PIVOTAL MOVEMENT OF SAID CAM MEMBER IN A SECOND DIRECTION.
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) | 1967-01-13 | 1967-07-15 | 1968-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-13 | 1971-07-15 | 1972-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-13 | 1975-07-15 | 1976-01-14 | $7700.00 | Window Closed / Lapsed |