Railway friction wheel
US4431227A · kind A · utility
7Cited by
16References
11Claims
0Family size
Inventor
Key dates
| Filing date | Mar 24, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Mar 24, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60B39/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Method and device for enhancing the adhesion qualities of vehicle wheels through the use of a plurality of embedded members having exposed high frictional surfaces, which are capable of automatically being caused to attain frictional contact with a wheel bearing surface in response to slippage. Under normal conditions where enhanced friction is not needed, the embedded members lie in a relative retracted position from which they may respond to slippage conditions as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.