Power tool
US11075564B2 · kind B2 · utility
0Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2020 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Jan 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power tool includes a brush holder with a brush positioned more accurately with respect to a commutator. A grinder as a power tool includes a housing, a stator fixed to the housing, a rotor rotatable relative to the stator and including a commutator and a coil, a brush that comes in contact with the commutator, a brush-holding metal plate having a screw hole and holding the brush, and a screw extending through the screw hole and directly fastened to the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.