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US3258991A
Expired / Lapsed
US
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Quick release hand brake mechanism
Assignee: Unarco Industries LLC
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Filing: 1963-10-14
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Granted: 1966-07-05
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Frank A Bezlaj
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:10
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/02; B61H13/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20474; Y10T74/2048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A RAILWAY HAND BRAKE MECHANISM COMPRISING A LARGE GEAR, MEANS FOR CONNECTING SAID GEAR TO A BRAKE, A PINION ENGAGING AND DRIVING SAID GEAR, A SHAFT ROTATABLY CARRYING SAID PINION, MEANS FOR TURNING SAID SHAFT, MEANS FOR LOCKING SAID SHAFT IN A DESIRED TURNED POSITION, INCLUDING A COUPLING PLATE OPERATIVELY CONNECTING SAID PINION TO SAID TURNING MEANS, A PIVOTABLE YOKE MEMBER ENGAGING BOTH SIDES OF SAID COUPLING PLATE, SAID YOKE HAVING A SADDLE PORTION, A CAM SHAFT RECEIVING SAID SADDLE PORTION, A CAM ON SAID CAM SHAFT, SAID CAM BEING ALIGNED WITH SAID SADDLE PORTION, AND MEANS FOR ROTATING SAID CAM SHAFT FOR MOVING SAID YOKE MEMBER AND THEREBY SAID COUPLING PLATE IN RESPONSE TO THE MOVEMENT OF SAID CAM WHEREBY SAID COUPLING PLATE DISCONNECTS SAID PINION FROM SAID TURNING MEANS FOR RELEASING SAID BRAKE.
Claim 2
Dependent Claim
135 words
A RAILWAY HAND BRAKE MECHANISM COMPRISING A LARGE GEAR, MEANS FOR CONNECTING SAID GEAR TO A BRAKE, A PINION ENGAGING AND DRIVING SAID GEAR, A SHAFT ROTATABLY CARRYING SAID PINION, MEANS FOR TURNING SAID SHAFT, MEANS FOR LOCKING SAID SHAFT IN A DESIRED TURNED POSITION, INCLUDING A COUPLING PLATE OPERATIVELY CONNECTING SAID PINION TO SAID TURNING MEANS, A PIVOTABLE YOKE MEMBER ENGAGING BOTH SIDES OF SAID COUPLING PLATE, SAID YOKE HAVING A SADDLE PORTION, A CAM SHAFT RECEIVING SAID SADDLE PORTION, A CAM ON SAID CAM SHAFT, SAID CAM BEING ALIGNED WITH SAID SADDLE PORTION, AND MEANS FOR ROTATING SAID CAM SHAFT FOR MOVING SAID YOKE MEMBER AND THEREBY SAID COUPLING PLATE IN RESPONSE TO THE MOVEMENT OF SAID CAM WHEREBY SAID COUPLING PLATE DISCONNECTS SAID PINION FROM SAID TURNING MEANS FOR RELEASING SAID BRAKE.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |