Patent US2750393A successfully refreshed from Google Patents.
US3266601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway brake
Assignee: American Brake Shoe Co
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Filing: 1963-12-12
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Granted: 1966-08-16
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Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:42
CPC Classifications
B; B61; B61H; B61H13/00; B61H13/20; B61H13/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
152 words
IN A BRAKE UNIT ADAPTED TO BE SECURED TO THE TRUCK OF A RAILROAD CAR WHEREIN A BOLSTER IN THE TRUCK IS SPRING MOUNTED FOR VERTICAL MOVEMENT RELATIVE TO SIDE FRAMES OF A TRUCK, LIVE LEVER AND DEAD LEVER BRAKE BEAMS DISPOSED ON OPPOSITE SIDES OF THE TRUCK AND MOVABLE WITH RESPECT TO SAID SIDE FRAMES; A CYLINDER MEANS SECURED TO ONE SIDE OF THE BOLSTER HAVING SAID DEAD LEVER BRAKE BEAM AND HAVING A PISTON MEANS WITH AN OPERATIVE STROKE THROUGH SAID BOLSTER TO SUPPLY THE BRAKE OPERATING FORCE OF SAID LIVE LEVER BRAKE BEAM, SLACK ADJUSTER MEANS SECURED TO SAID BOLSTER ON SAID ONE SIDE OF SAID BOLSTER AND ENGAGEABLE BY SAID DEAD LEVER BRAKE BEAM, AND A LEVER MEANS ENGAGEABLE WITH SAID PISTON MEANS TO OPERATE SAID BRAKE BEAMS, SAID LEVER MEANS BEING DISPOSED ON THE OTHER SIDE OF THE BOLSTER OPPOSITE SAID CYLINDER MEANS AND SAID SLACK ADJUSTER.
References Cited (Backward Citations)
US283368A
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US2181041A
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US2885034A
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US2973840A
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US3043406A
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US3101814A
Cited
US3120881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |