US3232443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cushion arrangement for railway car
Assignee: Pullman Standard Inc
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Filing: 1964-07-24
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Granted: 1966-02-01
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Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:00
CPC Classifications
B; B61; B61D; B61D45/00; B61D45/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A CUSHION ARRANGEMENT FOR A RAILWAY CAR COMPRISING A CENTER SILL ASSEMBLY WHICH INCLUDES A HOLLOW STATIONARY SILL, A HOLLOW SLIDING SILL DISPOSED WITHIN SAME, AND FIRST AND SECOND POCKET FORMING STRUCTURES LONGITUDINALLY SPACED FROM EACH OTHER, A SILL RETURN SPRING DISPOSED IN SAID FIRST POCKET FORMING STRUCTURE FOR MAINTAINING SAID STATIONARY AND SLIDING SILLS IN A NORMAL RELATIONSHIP, AND BEING COMPRESSED BY SAID POCKET FORMING STRUCTURE UPON RELATIVE MOVEMENT OF SAID SILLS, AND A HYDRAULIC CUSHION LOCATED IN SAID SECOND POCKET FORMING STRUCTURE
Claim 2
Dependent Claim
84 words
A CUSHION ARRANGEMENT FOR A RAILWAY CAR COMPRISING A CENTER SILL ASSEMBLY WHICH INCLUDES A HOLLOW STATIONARY SILL, A HOLLOW SLIDING SILL DISPOSED WITHIN SAME, AND FIRST AND SECOND POCKET FORMING STRUCTURES LONGITUDINALLY SPACED FROM EACH OTHER, A SILL RETURN SPRING DISPOSED IN SAID FIRST POCKET FORMING STRUCTURE FOR MAINTAINING SAID STATIONARY AND SLIDING SILLS IN A NORMAL RELATIONSHIP, AND BEING COMPRESSED BY SAID POCKET FORMING STRUCTURE UPON RELATIVE MOVEMENT OF SAID SILLS, AND A HYDRAULIC CUSHION LOCATED IN SAID SECOND POCKET FORMING STRUCTURE
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |