Power tool safety device
US7210542B2 · kind B2 · utility
8Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2004 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Sep 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A safety device for a power tool having an electric motor and a trigger to activate the motor via a primary trigger-activated switch, includes an auxiliary switch in circuit with the motor, an activator movable between a first position in which the auxiliary switch is opened by the activator and the activator prevents depression of the trigger, and a second position in which the auxiliary switch is closed by the activator and the activator allows depression of the trigger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.