Railcar having cold formed center sill with stiffness enhancing structure
US11338831B2 · kind B2 · utility
1Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jun 17, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F1/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railcar comprising: a plurality of truck assemblies, each truck assembly having at least one wheel an underbody supported on said truck assemblies, said underbody including a cold formed center sill extending substantially the length of said railcar, wherein said center sill includes a top wall, a pair of side sections joined to the top wall by a pair of upper curved sections, bottom sections coupled to the side sections through curved connecting sections, wherein the center sill includes an upwardly extending stiffening longitudinal rib centered within the top wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.