US3335831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bi-directional no-back drive device
Assignee: Formsprag Co
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Filing: 1965-10-23
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Granted: 1967-08-15
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Kalns Ilmars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
F; F16; F16B; F16B1/00; F16B1/02; F16B1/04; F16D; F16D3/00; F16D3/02; F16D3/50; F16D51/00; F16D51/16; F16D51/18; F16D51/20; F16D59/00; F16D67/00; F16D67/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19074; Y10T74/19079; Y10T74/19088; Y10T74/19102; Y10T74/20; Y10T74/20207; Y10T74/20213; Y10T74/20238
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN ANTI-REVERSE FEED-BACK DEVICE, COMPRISING MEANS PROVIDING A CIRCULAR BRAKE SURFACE, A ROTARY INPUT MEMBER COAXIAL WITH SAID SURFACE AND HAVING A DRIVE AND BRAKE CONTROL PIN PROJECTING THEREFROM IN LATERALLY SPACED RELATION TO THE ROTATIVE AXIS THEREOF, A BRAKE SHOE RELEASABLY ENGAGEABLE IN BRAKING RELATION TO SAID BRAKE SURFACE, SAID HOLE HAVING A HOLE OF LARGER DIAMETER THAN SAID PIN ECCENTRICALLY RECEIVING AND BEING WEDGED BY THE LATTER TO URGE THE SHOE OUT OF SAID BRAKING RELATION IN A DRIVING PHASE OF SAID INPUT MEMBER AND PIN, AND AN OUTPUT MEMBER COAXIAL WITH SAID INPUT MEMBER AND HAVING A DRIVEN AND BRAKE CONTROL ELEMENT PROJECTING AXIALLY THEREOF AND ENGAGEABLE WITH SAID SHOE TO URGE THE LATTER TO SAID BRAKING RELATION IN A PHASE OF OPERATION OF THE DEVICE IN WHICH THE OUTPUT MEMBERS IS UNDER TORQUE IN A DIRECTION REVERSE OF THE DIRECTION OF THE INPUT MEMBER DRIVING PHASE.
Claim 2
Dependent Claim
150 words
AN ANTI-REVERSE FEED-BACK DEVICE, COMPRISING MEANS PROVIDING A CIRCULAR BRAKE SURFACE, A ROTARY INPUT MEMBER COAXIAL WITH SAID SURFACE AND HAVING A DRIVE AND BRAKE CONTROL PIN PROJECTING THEREFROM IN LATERALLY SPACED RELATION TO THE ROTATIVE AXIS THEREOF, A BRAKE SHOE RELEASABLY ENGAGEABLE IN BRAKING RELATION TO SAID BRAKE SURFACE, SAID HOLE HAVING A HOLE OF LARGER DIAMETER THAN SAID PIN ECCENTRICALLY RECEIVING AND BEING WEDGED BY THE LATTER TO URGE THE SHOE OUT OF SAID BRAKING RELATION IN A DRIVING PHASE OF SAID INPUT MEMBER AND PIN, AND AN OUTPUT MEMBER COAXIAL WITH SAID INPUT MEMBER AND HAVING A DRIVEN AND BRAKE CONTROL ELEMENT PROJECTING AXIALLY THEREOF AND ENGAGEABLE WITH SAID SHOE TO URGE THE LATTER TO SAID BRAKING RELATION IN A PHASE OF OPERATION OF THE DEVICE IN WHICH THE OUTPUT MEMBERS IS UNDER TORQUE IN A DIRECTION REVERSE OF THE DIRECTION OF THE INPUT MEMBER DRIVING PHASE.
References Cited (Backward Citations)
US2881635A
Cited
US2394384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |