Power tool
US8415922B2 · kind B2 · utility
2Cited by
7References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Jan 18, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D29/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a power tool which can supply electric power again from a battery even in a case where the supply of electric power from the battery is stopped by an over-discharge detection means. A power tool 1 includes an FET driving circuit 36 which permits the supply of electric power again to a motor 31 from a battery pack 2 in response to the turning-on of a trigger switch 33 even in the case where the battery pack 2 is placed in an over-discharge state and so the supply of electric power to the motor 31 from the battery pack 2 is stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.