US3381630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guide rail structure for railway flat cars
Assignee: ACF Industries Inc
•
Filing: 1966-10-31
•
Granted: 1968-05-07
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Dallas W Rollins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
B; B61; B61D; B61D3/00; B61D3/16; B61D3/18; B61D3/187; B61D3/188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A RAILWAY FLAT CAR ADAPTED TO TRANSPORT A TRAILER SECURED THEREON COMPRISING, A GENERALLY FLAT DECK, A HITCH MOUNTED ON THE DECK ADAPTED TO ENGAGE AND SECURE THE KINGPIN OF THE TRAILER, A PAIR OF SPACED, GENERALLY PARALLEL GUIDE RAILS ON THE DECK EXTENDING LONGITUDINALLY OF THE RAILWAY CAR WITH SAID HITCH BEING POSITIONED BETWEEN THE GUIDE RAILS, EACH RAIL HAVING A RAIL SECTION GENERALLY ADJACENT THE HITCH MOUNTED FOR MOVEMENT BETWEEN AN ERECT POSITION PROJECTING ABOVE THE DECK AND A RETRACTED POSITION CLOSELY ADJACENT THE UPPER SURFACE OF THE DECK, AND MEANS BIASING THE MOVABLE RAIL SECTIONS TO ERECT POSITION, SAID RAIL SECTIONS BEING MOVED TO RETRACTED POSITION AGAINST SAID BIASING MEANS UPON A GENERALLY DOWNWARD FORCE BEING EXERTED AGAINST THE RAIL SECTIONS AND BEING RETURNED TO ERECT POSITION UNDER THE INFLUENCE OF SAID BIASING MEANS AFTER SAID DOWNWARD FORCE IS REMOVED.
Claim 2
Dependent Claim
143 words
A RAILWAY FLAT CAR ADAPTED TO TRANSPORT A TRAILER SECURED THEREON COMPRISING, A GENERALLY FLAT DECK, A HITCH MOUNTED ON THE DECK ADAPTED TO ENGAGE AND SECURE THE KINGPIN OF THE TRAILER, A PAIR OF SPACED, GENERALLY PARALLEL GUIDE RAILS ON THE DECK EXTENDING LONGITUDINALLY OF THE RAILWAY CAR WITH SAID HITCH BEING POSITIONED BETWEEN THE GUIDE RAILS, EACH RAIL HAVING A RAIL SECTION GENERALLY ADJACENT THE HITCH MOUNTED FOR MOVEMENT BETWEEN AN ERECT POSITION PROJECTING ABOVE THE DECK AND A RETRACTED POSITION CLOSELY ADJACENT THE UPPER SURFACE OF THE DECK, AND MEANS BIASING THE MOVABLE RAIL SECTIONS TO ERECT POSITION, SAID RAIL SECTIONS BEING MOVED TO RETRACTED POSITION AGAINST SAID BIASING MEANS UPON A GENERALLY DOWNWARD FORCE BEING EXERTED AGAINST THE RAIL SECTIONS AND BEING RETURNED TO ERECT POSITION UNDER THE INFLUENCE OF SAID BIASING MEANS AFTER SAID DOWNWARD FORCE IS REMOVED.
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |