US3271010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible hand winch
Assignee: Individual
•
Filing: 1963-11-26
•
Granted: 1966-09-06
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Robert H Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:10
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/12; B66D3/14; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/2048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A REVERSIBLE HAND WINCH COMPRISING A HOUSING, A SHAFT JOURNALED IN SAID HOUSING, A WINDING DRUM ON SAID SHAFT, A GEAR WHEEL OPERABLY CONNECTED FOR ROTATION WITH SAID DRUM, A PAWL PIVOTALLY MOUNTED IN SAID HOUSING AND HAVING A TOOTHED END ENGAGEABLE WITH SAID GEAR WHEEL, SAID PAWL BEING ARRANGED TO PROVIDE RATCHETED MOVEMENT OF SAID GEAR WHEEL IN ONE DIRECTION, A FIRST SPRING ENGAGED WITH SAID PAWL AND HAVING A PAIR OF OVERCENTER POSITIONS ONE OF WHICH URGES SAID PAWL INTO ENGAGEMENT WITH SAID GEAR WHEEL AND THE OTHER OF WHICH URGES AND IS ADAPTED TO HOLD SAID PAWL OUT OF ENGAGEMENT WITH SAID GEAR WHEEL, A SECOND SPRING ENGAGED WITH SAID PAWL AND ARRANGED TO URGE SAID PAWL INTO RATCHETING ENGAGEMENT WITH SAID GEAR WHEEL, SELECTOR MEANS ROTATABLE BETWEEN SET POSITIONS, AND A CAM ON SAID SELECTOR MEANS ENGAGEABLE WITH SAID SECOND SPRING, SAID CAM IN ONE POSITION OF THE SELECTOR MEANS DISTORING SAID SECOND SPRING SUFFICIENT TO OVERRIDE THE FORCES OF SAID FIRST SPRING TO CAUSE THE PAWL TO PIVOT INTO ENGAGEMENT WITH SAID GEAR WHEEL AND IN ANOTHER POSITION RELEASING SAID SECOND SPRING TO PERMIT OPERATING INFLUENCE OF SAID FIRST SPRING ON SAID PAWL.
Claim 2
Dependent Claim
198 words
A REVERSIBLE HAND WINCH COMPRISING A HOUSING, A SHAFT JOURNALED IN SAID HOUSING, A WINDING DRUM ON SAID SHAFT, A GEAR WHEEL OPERABLY CONNECTED FOR ROTATION WITH SAID DRUM, A PAWL PIVOTALLY MOUNTED IN SAID HOUSING AND HAVING A TOOTHED END ENGAGEABLE WITH SAID GEAR WHEEL, SAID PAWL BEING ARRANGED TO PROVIDE RATCHETED MOVEMENT OF SAID GEAR WHEEL IN ONE DIRECTION, A FIRST SPRING ENGAGED WITH SAID PAWL AND HAVING A PAIR OF OVERCENTER POSITIONS ONE OF WHICH URGES SAID PAWL INTO ENGAGEMENT WITH SAID GEAR WHEEL AND THE OTHER OF WHICH URGES AND IS ADAPTED TO HOLD SAID PAWL OUT OF ENGAGEMENT WITH SAID GEAR WHEEL, A SECOND SPRING ENGAGED WITH SAID PAWL AND ARRANGED TO URGE SAID PAWL INTO RATCHETING ENGAGEMENT WITH SAID GEAR WHEEL, SELECTOR MEANS ROTATABLE BETWEEN SET POSITIONS, AND A CAM ON SAID SELECTOR MEANS ENGAGEABLE WITH SAID SECOND SPRING, SAID CAM IN ONE POSITION OF THE SELECTOR MEANS DISTORING SAID SECOND SPRING SUFFICIENT TO OVERRIDE THE FORCES OF SAID FIRST SPRING TO CAUSE THE PAWL TO PIVOT INTO ENGAGEMENT WITH SAID GEAR WHEEL AND IN ANOTHER POSITION RELEASING SAID SECOND SPRING TO PERMIT OPERATING INFLUENCE OF SAID FIRST SPRING ON SAID PAWL.
References Cited (Backward Citations)
US2917278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |