Constant contact side bearing
US5601031A · kind A · utility
36Cited by
15References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1994 |
| Grant date | Feb 11, 1997 |
| Priority date | — |
| Expiry date | Jun 14, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/426
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved side bearing for installation between a railcar body and the bolster of the railcar track, said side bearing having an open cylindrical housing with a mounting plate, a top cap for vertically reciprocating within said cylindrical housing and a one piece compression spring resisting the reciprocation of the top plate, the compression spring being formed, of a copolymer elastomer having a ratio of plastic strain to elastic strain that is greater than 1.5 to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.