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:
Oct. 20, 1992
Filed:
Jan. 16, 1991
Applicant:
Inventors:
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 / ; 219 1071 ; 219 1067 ; 219 1075 ;
Abstract
In an electromagnetic induction heater for use in heating a strip by electromagnetic induction between a pair of magnetic-pole elements, a plurality of guide rollers are arranged between the magnetic-pole elements to guide the strip. The strip may be guided on the guide rollers in a staggered manner. Each guide roller may comprise a roll element of a ferromagnetic material. Each end surface of the magnetic-pole elements may be concave so that each end surface surrounds each guide roller with a gap left therebetween.