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:
Apr. 20, 1999
Filed:
Mar. 05, 1996
Applicant:
Inventors:
Billy Reese Masten, Shallowater, TX (US);
Darrell Vines, Lubbock, TX (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
388811 ; 318254 ; 388934 ;
Abstract
A dc motor speed control circuit is provided. A first circuit utilizing an opto-electric sensor for providing an input signal corresponding to a desired dc motor speed is connected to a second circuit and the second circuit is connected to the dc motor, wherein the second circuit responds to the input signal and causes current to flow through the dc motor corresponding to the input signal. A temperature circuit, voltage level circuit and current level circuit may also be connected to the second circuit to control the dc motor.