Closure mechanism for bottom dump hopper cars
US4011956A · kind A · utility
7Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1975 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Aug 15, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A side of track closure mechanism is provided for engaging and exerting an inwardly directed lateral thrust against bottom dump doors of a hopper car for hingedly moving the doors inwardly to a closed position. The actuating mechanism includes a rotating arm having actuating apparatus at one end which when placed in an index position is adapted to engage the doors of bottom dump hopper cars as they move along a track adjacent to which the closure mechanism is positioned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.