US3129597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulleys
Assignee: SPEED SELECTOR Inc
•
Filing: 1962-02-16
•
Granted: 1964-04-21
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Expires: 1982-02-16
Abstract
No abstract record available.
Inventors
- 👤 William C Prior
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:36
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56; F16H55/563
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A VARIABLE PITCH PULLEY COMPRISING A SHAFT, A PAIR OF OPPOSED PULLEY HALVES ON SAID SHAFT, AT LEAST ONE OF SAID PULLEY HALVES BEING MOUNTED FOR AXIAL SLIDING MOVEMENT, AND SPRING BIASING MEANS FOR URGING SAID ONE PULLEY HALF TOWARD ONE END OF SAID SHAFT, SAID SPRING BIASING MEANS INCLUDING A PLURALITY OF SEPARATE LEVER FINGERS HAVING INNER FULCRUM ENDS CONTIGUOUS TO SAID SHAFT AND BEARING PORTIONS OPERATIVELY ENGAGING SAID ONE PULLEY HALF, AND A DISC SPRING CARRIED BY SAID LEVER FINGERS, SAID DISC SPRING BEING MOVABLE RELATIVE TO SAID FINGERS SO THAT SAID SPRING IS FREE TO DEFLECT WITHOUT DISTORTING SAID FINGERS.
Claim 2
Dependent Claim
103 words
A VARIABLE PITCH PULLEY COMPRISING A SHAFT, A PAIR OF OPPOSED PULLEY HALVES ON SAID SHAFT, AT LEAST ONE OF SAID PULLEY HALVES BEING MOUNTED FOR AXIAL SLIDING MOVEMENT, AND SPRING BIASING MEANS FOR URGING SAID ONE PULLEY HALF TOWARD ONE END OF SAID SHAFT, SAID SPRING BIASING MEANS INCLUDING A PLURALITY OF SEPARATE LEVER FINGERS HAVING INNER FULCRUM ENDS CONTIGUOUS TO SAID SHAFT AND BEARING PORTIONS OPERATIVELY ENGAGING SAID ONE PULLEY HALF, AND A DISC SPRING CARRIED BY SAID LEVER FINGERS, SAID DISC SPRING BEING MOVABLE RELATIVE TO SAID FINGERS SO THAT SAID SPRING IS FREE TO DEFLECT WITHOUT DISTORTING SAID FINGERS.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |