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:
Aug. 25, 1987
Filed:
Oct. 07, 1983
Applicant:
Inventors:
Hans Gerber, Luterbach, CH;
Markus Reber, Zollikofen, CH;
Assignee:
Scintilla AG, Solothurn, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318305 ; 310 47 ; 310 50 ;
Abstract
The electrically driven hand tool such as hand-operated drilling, milling or sawing machine includes a universal driving electromotor controlled via electric circuits by means of a plurality of switches, the control elements of which are in the form of pushbuttons arranged in a matrix or rectangular array on the top surface of the tool housing. The pushbuttons are illuminated when actuated and include a digital keyboard connected to a microprocessor to enter digital data corresponding to the desired value of speed or torque, and the microprocessor adjusts, via a power circuit, the electromotor to the entered data.