Railroad freight car draft gear
US8590717B2 · kind B2 · utility
7Cited by
21References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Aug 18, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/445
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A railroad freight car multipiece spring seat assembly including a spring seat, a top plate, and a spring. The spring seat is adapted to operably engage one end of a spring assembly in a railroad freight car draft gear. The top plate is adapted to operably engage with each of a plurality of friction shoes arranged in the railroad freight car draft gear. The spring of the multipiece spring seat assembly is operably disposed between the spring seat and the top plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.