Railway car integral hopper structure
US4228742A · kind A · utility
8Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1977 |
| Grant date | Oct 21, 1980 |
| Priority date | — |
| Expiry date | Dec 29, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle hopper construction having longitudinally spaced hopper end slope sheets and hopper cross ridge slope sheets formed prior to assembly in the vehicle hopper so as to provide integral interior hopper corner plates with associated transversely spaced hopper side sheets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.