US3390590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake operator including screw with stop means
Assignee: Universal Railway Devices Co
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Filing: 1966-10-03
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Granted: 1968-07-02
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Expires: 1986-10-03
Abstract
No abstract record available.
Inventors
- 👤 Eldred H Natschke
- 👤 Thomas J Macku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:29
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
198 words
IN A HAND BRAKE FOR RAILROAD CARS INCLUDING A HOUSING ADAPTED TO BE MOUNTED ON A CAR, AN OPERATING SHAFT JOURNALLED IN THE HOUSING, PINION AND RATCHET MEANS MOUNTED ON THE SHAFT WITH SAID PINION MEANS COMPRISING A PINION ROTATABLY MOUNTED ON THE SHAFT AND INCLUDING A THREADED PORTION, A NUT MOUNTED ON THE PINION THREADED PORTION AND A RATCHET WHEEL ROTATABLY MOUNTED ON THE PINION BETWEEN FRICTION CLUTCH FACES OF THE PINION AND NUT AND INCLUDING FRICTION CLUTCH FACES ON EITHER SIDE THEREOF ADAPETED FOR COOPERATION WITH THE FRICTION CLUTCH FACES OF THE PINION AND NUT RESPECTIVELY, A JAW CLUTCH SHIFTABLY KEYED TO SAID DRIVE SHAFT AND ADAPTED TO CLUTCH AND UNCLUTCH WITH RESPECT TO SAID NUT, BRAKE HOLDING MEANS INCLUDING PAWL MEANS MOUNTED IN SAID HOUSING FOR HOLDING SAID BRAKE, HAND LEVER RELEASE MEANS FOR CONTROLLING SAID PAWL MEANS AND FOR CLUTCHING AND UNCLUTCHING SAID JAW CLUTCH, A WINDING DRUM JOURNALLED IN SAID HOUSING AND COUPLED TO SAID PINION, AND MEANS FOR ROTATING SAID OPERATING SHAFT TO WIND UP THE BRAKE DRUM THE IMPROVEMENT WHEREIN: SAID PINION AND SAID NUT COMPRISES FORGED COMPONENTS FORMED TO DEFINE OPPOSED SURFACES IN CONCENTRIC RELATION TO SAID FRICTION CLUTCH SURFACES,
Claim 2
Dependent Claim
198 words
IN A HAND BRAKE FOR RAILROAD CARS INCLUDING A HOUSING ADAPTED TO BE MOUNTED ON A CAR, AN OPERATING SHAFT JOURNALLED IN THE HOUSING, PINION AND RATCHET MEANS MOUNTED ON THE SHAFT WITH SAID PINION MEANS COMPRISING A PINION ROTATABLY MOUNTED ON THE SHAFT AND INCLUDING A THREADED PORTION, A NUT MOUNTED ON THE PINION THREADED PORTION AND A RATCHET WHEEL ROTATABLY MOUNTED ON THE PINION BETWEEN FRICTION CLUTCH FACES OF THE PINION AND NUT AND INCLUDING FRICTION CLUTCH FACES ON EITHER SIDE THEREOF ADAPETED FOR COOPERATION WITH THE FRICTION CLUTCH FACES OF THE PINION AND NUT RESPECTIVELY, A JAW CLUTCH SHIFTABLY KEYED TO SAID DRIVE SHAFT AND ADAPTED TO CLUTCH AND UNCLUTCH WITH RESPECT TO SAID NUT, BRAKE HOLDING MEANS INCLUDING PAWL MEANS MOUNTED IN SAID HOUSING FOR HOLDING SAID BRAKE, HAND LEVER RELEASE MEANS FOR CONTROLLING SAID PAWL MEANS AND FOR CLUTCHING AND UNCLUTCHING SAID JAW CLUTCH, A WINDING DRUM JOURNALLED IN SAID HOUSING AND COUPLED TO SAID PINION, AND MEANS FOR ROTATING SAID OPERATING SHAFT TO WIND UP THE BRAKE DRUM THE IMPROVEMENT WHEREIN: SAID PINION AND SAID NUT COMPRISES FORGED COMPONENTS FORMED TO DEFINE OPPOSED SURFACES IN CONCENTRIC RELATION TO SAID FRICTION CLUTCH SURFACES,
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |