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. 29, 2000
Filed:
Feb. 26, 1999
Applicant:
Inventors:
David N Corson, Tulsa, OK (US);
Mark A Baker, Collinsville, OK (US);
Steven B Schrand, Cincinnati, OH (US);
Assignee:
Whirlpool Corporation, Benton Harbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219506 ; 219412 ; 219448 ; 219483 ; 219508 ; 337363 ;
Abstract
A temperature control system for electric range surface heating elements including an infinite switch electrically coupled to a surface heating element and a second switch, which selectively couples 120 VAC or 240 VAC power across the infinite switch and heating element. Alternatively, the second switch selectively couples either the infinite switch or an electronic controller to a surface heating element, wherein the electronic controller has timing circuits for cycling power supplied to the surface heating element according to a preset timing scheme within the timing circuits.