Patent US3667575A successfully refreshed from Google Patents.
US3667575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double acting free wheel
Assignee: Individual
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Filing: 1969-09-12
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Granted: 1972-06-06
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Expires: 1989-09-12
Abstract
Abstract The invention relates to stopping device for disconnecting two shafts, which comprises input drive means, an output driven shaft, displaceable wedging cam means releasably coupling said input drive means to said output driven shaft, means to displace said wedging cam means thereby to release said input drive means and said output driven shaft, means sensitive to the torque resisting rotation of said output driven shaft, said torque sensitive means being associated with said displacing means whereby when the resistance to torque reaches a predetermined value said displacing means is actuated to displace said wedging cam means.
Inventors
- 👤 Marcel Pierre Alexis Bouhot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:32
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/20; F16D43/202; F16D43/204; F16D43/208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
A mechanical torque limiter comprising an input drive shaft, a driver keyed to said drive shaft and axially displaceable therealong, a cam Block mounted on and relatively rotatable about said input drive shaft, said driver and said cam block being provided respectively with male and female abutment surfaces inclined with respect to the axis of said shaft and curved therearound, spring means biasing said driver against axial displacement away from said cam block, an output drive shaft, gearing coupling said output drive shaft to said cam block, a fixed annular bowl surrounding, in spaced relation, said cam block, at least one pair of wedging rollers mounted between said cam block and said bowl and adapted to bear against the inner surface of said bowl and inclined surfaces at the periphery of said cam block, means biasing the said rollers apart circumferentially with respect to said cam block, and a disconnecting ring concentrically disposed around said cam block within the bowl and loosely mounting said rollers, said ring being rotatable relative to said cam block and being releasably engaged with said driver for rotation therewith, engagement of said ring with said driver being released upon axial displacement of said driver away from said cam block.
Claim 2
Dependent Claim
204 words
A mechanical torque limiter comprising an input drive shaft, a driver keyed to said drive shaft and axially displaceable therealong, a cam Block mounted on and relatively rotatable about said input drive shaft, said driver and said cam block being provided respectively with male and female abutment surfaces inclined with respect to the axis of said shaft and curved therearound, spring means biasing said driver against axial displacement away from said cam block, an output drive shaft, gearing coupling said output drive shaft to said cam block, a fixed annular bowl surrounding, in spaced relation, said cam block, at least one pair of wedging rollers mounted between said cam block and said bowl and adapted to bear against the inner surface of said bowl and inclined surfaces at the periphery of said cam block, means biasing the said rollers apart circumferentially with respect to said cam block, and a disconnecting ring concentrically disposed around said cam block within the bowl and loosely mounting said rollers, said ring being rotatable relative to said cam block and being releasably engaged with said driver for rotation therewith, engagement of said ring with said driver being released upon axial displacement of said driver away from said cam block.
References Cited (Backward Citations)
US3367456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |