US3670664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable cover for railway flat cars
Assignee: ACF Industries Inc
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Filing: 1970-02-02
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Granted: 1972-06-20
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Expires: 1990-02-02
Abstract
Abstract A cover adapted to fit over lading carried on the deck of a flat car. A hoist is provided on a vertically extending support at each end of the flat car to raise the cover to permit loading and unloading of lading from the sides of the flat car, such as by a forklift truck or the like. For movement of the cover to a raised position, one end of the cover is first raised and then the opposite end is raised. Extensions on the ends of the cover guide the cover during raising and lowering thereof to minimize any lateral tilting of the cover.
Inventors
- 👤 Duane V Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
B; B61; B61D; B61D39/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
220 words
A railway flat car comprising, a generally flat deck adapted to support lading thereon, an end support at each end of the deck each including a pair of posts extending in a generally vertical direction a substantial distance above the deck, a cover positioned between the supports and being generally channelshaped in cross section adapted to fit over lading on the deck while resting on the upper surface of the deck, a cross member extending horizontally between each pair of posts generally adjacent their upper ends, separate lift means supported on each cross member and connected to the cover for raising the cover from the surface of the deck upon actuation thereof, a pair of horizontally extending extensions at each end of said cover projecting outwardly from the adjaceNt end of the cover alongside the associated pair of posts and restraining lateral movement of the cover by contact with the associated posts during raising and lowering of the cover by the lift means, and stop means on the end supports to engage the extensions and stop the upward movement of the cover, each lift means being independently actuated for selectively lifting one end of the cover, the opposite end of the cover being supported on the extensions of said opposite end when said one end of the cover is lifted.
Claim 2
Dependent Claim
220 words
A railway flat car comprising, a generally flat deck adapted to support lading thereon, an end support at each end of the deck each including a pair of posts extending in a generally vertical direction a substantial distance above the deck, a cover positioned between the supports and being generally channelshaped in cross section adapted to fit over lading on the deck while resting on the upper surface of the deck, a cross member extending horizontally between each pair of posts generally adjacent their upper ends, separate lift means supported on each cross member and connected to the cover for raising the cover from the surface of the deck upon actuation thereof, a pair of horizontally extending extensions at each end of said cover projecting outwardly from the adjaceNt end of the cover alongside the associated pair of posts and restraining lateral movement of the cover by contact with the associated posts during raising and lowering of the cover by the lift means, and stop means on the end supports to engage the extensions and stop the upward movement of the cover, each lift means being independently actuated for selectively lifting one end of the cover, the opposite end of the cover being supported on the extensions of said opposite end when said one end of the cover is lifted.
Claim 3
Dependent Claim
63 words
A railway flat car as set forth in claim 1 wherein said lift means comprises a pair of sprockets connected in driving relation to each other, an output shaft extending from the driven sprocket, a gear reduction unit connected to said output shaft, and means connecting the gear reduction unit to the cover for lifting the cover upon actuation of the lift means.
References Cited (Backward Citations)
US2899912A
Cited
US2587027A
Cited
US2977900A
Cited
US2949867A
Cited
US3132600A
Cited
US3098456A
Cited
US3526194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |