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:
Jun. 08, 1982
Filed:
Jun. 20, 1980
Applicant:
Inventors:
Assignee:
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148128 ; 148156 ; 266 87 ;
Abstract
Method and apparatus for compensating for local temperature difference of a steel product which has been previously heated above room temperature because of the preceding operation such as rolling and which is to be heat-treated. Upper, lower and edge burners are arranged in opposed relationship with a path of travel and are selectively ignited depending upon the surface temperature distribution of the steel product detected before it enters the apparatus, in such a way that the steel product is heated uniformly to a desired temperature.