Metal-graphite brush
US7294166B2 · kind B2 · utility
1Cited by
7References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 24, 2002 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jun 17, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush body 4 of a metal-graphite brush 2 is composed of a commutator side portion 6 which contains graphite, copper and a metal sulfide solid lubricant, and a lead side portion 8 which contains graphite and copper but does not contain any metal sulfide solid lubricant. A lead wire 10 is attached to the lead side portion 8 containing no metal sulfide solid lubricant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.