Motor system for dual voltage devices
US9427859B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | May 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power tool includes a housing, an output shaft supported by the housing for rotation about an axis, a battery terminal selectively operable to receive a DC power supply from a battery, and a receptacle selectively operable to receive an AC power supply from an AC power source. The power tool further includes a motor operable in a first power mode, in response to receipt of the DC power supply, to rotatably drive the output shaft, and also operable in a second power mode, in response to receipt of the AC power supply, to rotatably drive the output shaft. The power tool also includes a mechanical interlock movable between a first position in which the interlock inhibits the flow of the AC power supply to the motor and a second position in which the interlock inhibits the flow of the DC power supply to the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.