Hopper rail car
US6244191A · kind A · utility
9Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 19, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Jan 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D7/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hopper car having smooth side walls being reinforced by a horizontal beam along a horizontal seam. The roof of the car has a plurality of extruded beams, including a pair of combining extrusion extending the length of a hatch opening. The coaming extrusions include tabs to which the hatch covers can be attached at any location. A hollow side sill is formed with tabs to attach the side sheets and the sloped floor panels. A four piece hood encases the center sill along its length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.