Railroad well car body including side sill reinforcing walkway structure
US5423269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D3/184
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railroad freight car including a cargo well for carrying optionally either intermodal cargo containers or highway semitrailers has a side sill structure including a deep rectangular top chord and a depending web, supporting a well floor structure. The well floor structure includes reinforcing longitudinal and transverse channel members and horizontal top and bottom plates attached to the channels. Large circular openings, aligned with one another, are defined in both the top and bottom plates, and a peripheral ring of vertical material interconnects the margins of the top and bottom plates around the openings, providing a light but stiff floor structure with a small vertical height. A side sill reinforcing walkway structure is located atop each side sill at each end of the cargo well, but is low enough to avoid interference with handling trailers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.