Mechanism for selectively operating hopper doors of a railroad car
US7389732B2 · kind B2 · utility
4Cited by
9References
20Claims
0Family size
Inventor
Key dates
| Filing date | May 26, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Apr 9, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mechanism for selectively operating hopper doors of a railroad car. A fulcrum coupled to the operating cylinder includes channels within which levers can be selectively activated to open specific doors of the car, thus allowing the contents of the railcar to be sequentially emptied. The mechanism can be installed on railcars having either transverse hopper doors or longitudinal hopper doors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.