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:
Dec. 23, 1980
Filed:
Jan. 22, 1979
Applicant:
Inventors:
Harold L Trammell, Jr, Hurst, TX (US);
Jerry W Swafford, Dallas, TX (US);
Assignee:
Teccor Electronics, Inc., Irving, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318 17 ; 200 / ; 200 / ; 200157 ; 3183 / ; 3183 / ; 338309 ;
Abstract
An improved compact electronic switch for controlling an electric motor comprising a housing into which a trigger actuator reciprocates for selecting motor speed and a reversing switch mounted on the housing and interlocked with the trigger actuator for selecting motor direction. Improvements include; an improved switch contact arrangement which reduces arcing on switching from full power to variable power motor control, an improved printed variable resistor for the electronic speed control circuitry, and an improved and simplified reversing switch unit.