Patent · US Expired

Locking trigger switch mechanism

US6812425B1 · kind B1 · utility

12Cited by
8References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 24, 2003
Grant dateNov 2, 2004
Priority date—
Expiry dateNov 24, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01H3/20
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A trigger mechanism for a power tool, comprises a chassis, a trigger mounted movably to the chassis, and an electrical switch mounted to the chassis and activated by movement of the trigger between ON and OFF positions to close and open an electrical circuit. A locking mechanism attached to the chassis is user-activated to unlock the trigger in the OFF position and trigger-activated to release the trigger in the ON position. The mechanism includes a single, spring-loaded locking pin arranged to lock the trigger in both the ON and the OFF positions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.