The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1995
Filed:
Jun. 07, 1993
Applicant:
Inventor:
William J Kelley, Jenks, OK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200510 ; 200522 ;
Abstract
A safety control for power tool includes a trigger responsive element coupled to the power tool drive apparatus. The trigger responsive element is operative to permit normal trigger movement between on and off positions. In addition, the trigger responsive element responds to excessive force upon the trigger in the on position to initiate a safety shutdown of the power tool drive apparatus. Upon release, the trigger responsive element returns the trigger to the off position without reactivating the power tool drive apparatus. Embodiments are shown for both electrical and internal combustion engine powered tools.