Torsionally flexible railway truck frame
US4279202A · kind A · utility
4Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1979 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Jun 15, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A swivel truck frame of high torsional flexibility for rail vehicles is provided comprising a pair of generally straight longitudinal beams running parallel to one another, said longitudinal beams connected to one another by parallel running crossbeams to define a rectangular frame, said crossbeams being welded to said longitudinal beams, said crossbeams being disposed under said longitudinal beams, the lower chords of said longitudinal beams being welded to the upper chords of said crossbeams, said longitudinal beams being further interconnected by at least one middle crossbeam disposed between said parallel running crossbeams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.