Yoke for a railway draft gear and method of making
US7926672B2 · kind B2 · utility
6Cited by
20References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 2008 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Sep 30, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G9/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Yokes utilized in railway coupling apparatus are designed according to the invention to have improved stress profiles and increased service life. Investment casting techniques used to make the yokes and other components of the coupling apparatus yield improved surface finishes and tighter dimensional tolerances of the parts without requiring hammering, coating or other post-casting treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.