Hand-held tool with an electric motor and wearing shells for supporting the same
US4638196A · kind A · utility
14Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1985 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Mar 18, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/66
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a hand-held machine tool, a housing formed of two shells accommodates an electric motor, a motor bearing assembly and electric structural components. A brush-side motor bearing includes a bearing support which carries thereon the electric structural components, such as carbon brush holders, chokes for spark quenching, an inductive receiver and light-emitting diodes. The bearing support can be preassembled with these structural components outside the housing and inserted into one of the housing shells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.