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:
Jan. 03, 1978
Filed:
Sep. 02, 1975
Applicant:
Inventor:
Klaus Voss, Stuttgart, DT;
Assignee:
Robert Bosch G.m.b.H., Stuttgart, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
173 12 ; 7313 / ; 73139 ; 81 5 / ;
Abstract
To prevent accidents due to high torque of hand tools, such as drills, and the like, which, when the tool bit stalls, may tend to twist the tool handle from the user's hand, a torque measuring element is located on the tool body at the junction of the tool body and the handle and connected to the power supply of the tool to discontinue or interrupt power supply thereto upon sensing of deformation between the tool body and the handle thereof due to excessive strain on said junction; preferably, the handle is joined to the tool body by a section of material of reduced cross-sectional size to accentuate any deformation between the tool handle and the body.
Published as: