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:
Jul. 21, 1981
Filed:
Oct. 24, 1978
Applicant:
Inventors:
George Havas, Youngstown, OH (US);
Fred D Esenwein, Columbiana, OH (US);
Assignee:
Ajax Magnethermic Corporation, Warren, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ; H02M / ;
U.S. Cl.
CPC ...
219 1077 ; 219 1041 ; 363 37 ; 363 97 ; 13 26 ;
Abstract
A method and apparatus for induction heating or melting furnaces of varying conductance, comprising controlled adjustment of the power factor angle in response to variations in load conductance to maintain constant power.