Rail car end door positioning keeper assembly
US4263853A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 15, 1979 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Jan 15, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T292/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A railway car having an end opening includes a swingable folding door assembly provided with a keeper mechanism carried by the door assembly and the adjacent side wall of the railway car. As the panels of the door assembly are folded from a flat, closed position overlying the car end opening to a collapsed, open position disposed substantially longitudinally extended away from the end of the car side wall, a guide rod carried by the door assembly is arcuately displaced to simultaneously horizontally shift a vertical locking pin to a position overlying an aperture in a lock plate whereupon gravity concurrently drops the connected rod and pin to secure the open door assembly in a fixed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.