Voltage sensing hand tool
US7468674B2 · kind B2 · utility
8Cited by
15References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2006 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jan 9, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/0857
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hand tool and an accessory which provide an alarm signal to a user as the tool or accessory approaches a live electrical wire are disclosed. The hand tool or accessory include a non-contact voltage sensing circuit. As the tool or accessory approaches a live electrical wire, the non-contact voltage sensing circuit detects the voltage, triggering an alarm circuit. The alarm circuit provides a visual or audio signal to the user. The hand tool can be selectively coupled to the tool head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.