Patent US3233747A successfully refreshed from Google Patents.
US3233747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Restoring mechanism for railway draft gear
Assignee: Halliburton Co
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Filing: 1964-01-22
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Granted: 1966-02-08
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Expires: 1984-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert E Abbott
- 👤 Timothy R Moody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:54
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/12; B61G9/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A MECHANISM FOR RESTORING RAILWAY CAR DRAFT GEAR TO THE NEUTRAL POSITION COMPRISING: (A) BRACKET MEANS FIXED TO SAID RAILWAY CAR ADJACENT ONE END THEREOF; (B) FIRST SPRING MEANS MOUNTED ON SAID BRACKET MEANS; (C) A COUPLING ROD ATTACHED ON ONE OF ITS ENDS TO SAID DRAFT GEAR AND EXTENDING REARWARDLY THROUGH A PORTION OF SAID BRACKET MEANS; (D) SECOND SPRING MEANS MOUNTED ON SAID COUPLING ROD PARALLEL TO SAID FIRST SPRING MEANS; (E) MEANS MOUNTING SAID SECOND SPRING MEANS ON SAID COUPLING ROD; (F) MEANS COUPLING SAID FIRST SPRING MEANS AND SAID SECOND SPRING MEANS, SAID COUPLING MEANS COACTING WITH SAID COUPLING ROD, SAID MEANS MOUNTING SAID SECOND SPRING ON SAID COUPLING ROD, AND SAID BRACKET MEANS WHEREBY REARWARD MOVEMENT OF SAID DRAFT GEAR PRODUCES COMPRESSION OF BOTH SAID FIRST SPRING MEANS AND SAID SECOND SPRING MEANS, WHILE FOWARD MOVEMENT OF SAID DRAFT GEAR PRODUCES COMPRESSION OF ONLY SAID SECOND SPRING MEANS.
Claim 2
Dependent Claim
153 words
A MECHANISM FOR RESTORING RAILWAY CAR DRAFT GEAR TO THE NEUTRAL POSITION COMPRISING: (A) BRACKET MEANS FIXED TO SAID RAILWAY CAR ADJACENT ONE END THEREOF; (B) FIRST SPRING MEANS MOUNTED ON SAID BRACKET MEANS; (C) A COUPLING ROD ATTACHED ON ONE OF ITS ENDS TO SAID DRAFT GEAR AND EXTENDING REARWARDLY THROUGH A PORTION OF SAID BRACKET MEANS; (D) SECOND SPRING MEANS MOUNTED ON SAID COUPLING ROD PARALLEL TO SAID FIRST SPRING MEANS; (E) MEANS MOUNTING SAID SECOND SPRING MEANS ON SAID COUPLING ROD; (F) MEANS COUPLING SAID FIRST SPRING MEANS AND SAID SECOND SPRING MEANS, SAID COUPLING MEANS COACTING WITH SAID COUPLING ROD, SAID MEANS MOUNTING SAID SECOND SPRING ON SAID COUPLING ROD, AND SAID BRACKET MEANS WHEREBY REARWARD MOVEMENT OF SAID DRAFT GEAR PRODUCES COMPRESSION OF BOTH SAID FIRST SPRING MEANS AND SAID SECOND SPRING MEANS, WHILE FOWARD MOVEMENT OF SAID DRAFT GEAR PRODUCES COMPRESSION OF ONLY SAID SECOND SPRING MEANS.
References Cited (Backward Citations)
US1971420A
Cited
US2944681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |