Constant contact side bearing
US7546807B2 · kind B2 · utility
12Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2006 |
| Grant date | Jun 16, 2009 |
| Priority date | — |
| Expiry date | Mar 1, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A long travel constant contact side bearing for railway cars provides better handling characteristics, achieving improved tracking and curving through use of various combinations of features. The side bearing comprises a base and a generally cylindrical wall section extending upwardly from the base. A cup-shaped cap comprises a generally circular top section and a generally cylindrical wall section extending downwardly therefrom. The cap extends into the wall section of the base. At least one coil spring is provided within the base and extends to the underside of the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.