Composition railroad friction material with synthetic fiber content
US4217255A · kind A · utility
9Cited by
5References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1979 |
| Grant date | Aug 12, 1980 |
| Priority date | — |
| Expiry date | Apr 16, 1999 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D69/026
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Composition railroad friction materials having low wear rates are characterized by the use of synthetic fiber and by the absence of lead and asbestos. These friction materials are particularly suitable for use in railroad brake shoes and contain, by approximate weight, 0.5-11% non-asbestos fiber, of which at least 0.5% is synthetic fiber, 66-81% filler and 14-21% organic binder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.