Non-asbestos friction material
US7740698B2 · kind B2 · utility
10Cited by
16References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2007 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Dec 21, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2200/0073
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A non-asbestos friction material not containing a heavy metal and a heavy metallic compound as the blending ingredients of the friction material is provided with graphite and coke in total from 5 to 25 vol % in volume of friction material. A volume ratio of the graphite/coke is preferably from 2/1 to 7/1. An average particle size of the coke is preferably from 150 to 400 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.