Method of Controlling the direction of rotation of a power tool
US7318485B2 · kind B2 · utility
34Cited by
15References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2005 |
| Grant date | Jan 15, 2008 |
| Priority date | — |
| Expiry date | Feb 4, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention discloses a power tool for screwing or drilling having a motor for driving a drive shaft, a controller for controlling the power tool, a motor switch for switching the motor on and off, switch for reversing the power tool between clockwise and counter-clockwise rotation, and vice versa, and a timer that permits reversal of the power tool between clockwise/counter-clockwise rotation, and vice versa, within a predefined period of time between actuation of the switch for clockwise/counter-clockwise rotation and for operation of the motor switch to start the power tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.