Friction wedge liner with backing plate
US6701850B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Aug 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/122
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A friction wedge assembly for use in a suspension system of railroad car trucks. The friction wedge assembly comprises a cast metal wedge having a bottom face, a vertical face that is substantially perpendicular to the bottom face and a sloped face for contacting a mating surface on a bolster of such railroad car truck. There is a metal backing plate that has a first side removably engageable with the vertical face of the cast metal wedge, a means for securing the metal backing plate to the cast metal wedge and a composition liner disposed on a second side of the metal backing plate for engaging such metal wear liner on such side frame of such railroad car truck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.