Plastic knuckle pin with annular relief grooves for preventing pin failure due to fatigue
US5145076A · kind A · utility
33Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1990 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A plastic knuckle pin for a coupler on a railway car which accepts bending fatigue, eliminates rust or corrosion, and reduces the coefficient of friction during opening and closing the coupler. The pin also protects the integrity of the coupler body and the knuckle to reduce coupler maintenance and further reduces the weight of the railway car and facilitates the use of a self-locking feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.