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Patent US3274384A successfully refreshed from Google Patents.
US3274384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway car counter
Assignee: Westinghouse Air Brake Co
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Filing: 1962-07-12
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Granted: 1966-09-20
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Expires: 1982-07-12
Abstract
No abstract record available.
Inventors
- 👤 Jr William A Robison
- 👤 Adolf G Pokrant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:59
CPC Classifications
B; B61; B61L; B61L17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A RAILWAY CAR COUNTING SYSTEM FOR A STORAGE TRACK COMPRISING, MEANS FOR PRODUCING A SIGNAL REPRESENTATIVE OF EACH AXLE OF EACH RAILWAY CAR ENTERING THE STORAGE TRACK, SOLID STATE ELECTRONIC MEANS RESPONSIVE TO EACH SIGNAL FOR COUNTING THE NUMBER OF CARS ROUTED TO SAID STORAGE TRACK, AND MEAND INCLUDING A MOTOR HAVING A PAIR OF STATOR WINDINGS AND A ROTOR RESPONSIVE TO SAID COUNTING MEANS FOR PRODUCING AN OUTPUT REPRESENTING THE NUMBER OF EMPTY CAR SPACES REMAINING IN SAID STORAGE TRACK.
Claim 2
Dependent Claim
81 words
A RAILWAY CAR COUNTING SYSTEM FOR A STORAGE TRACK COMPRISING, MEANS FOR PRODUCING A SIGNAL REPRESENTATIVE OF EACH AXLE OF EACH RAILWAY CAR ENTERING THE STORAGE TRACK, SOLID STATE ELECTRONIC MEANS RESPONSIVE TO EACH SIGNAL FOR COUNTING THE NUMBER OF CARS ROUTED TO SAID STORAGE TRACK, AND MEAND INCLUDING A MOTOR HAVING A PAIR OF STATOR WINDINGS AND A ROTOR RESPONSIVE TO SAID COUNTING MEANS FOR PRODUCING AN OUTPUT REPRESENTING THE NUMBER OF EMPTY CAR SPACES REMAINING IN SAID STORAGE TRACK.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |