Light weight gondola type railway car
US4633787A · kind A · utility
29Cited by
6References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1984 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Apr 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T30/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A light weight, aerodynamically efficient gondola car for hauling bulk cargo, such as coal, ores and grains, has a cargo carrying structure formed of welded aluminum. A side sill member formed of extruded aluminum has side and bottom connective portions which are continuously welded to the sides and bottom respectively, and a strength portion which remains substantially unwelded in assembly to thereby retain its full strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.