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. 19, 1979
Filed:
Aug. 01, 1977
Applicant:
Inventors:
Assignee:
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 1043 ; 148148 ; 219 1071 ; 266113 ;
Abstract
In continuous induction heat treatment of an elongated metal member, additional local induction heating is applied to an end portion or portions of the metal member, thereby to obtain uniform induction heating temperature distribution over the whole length of the metal member. The additional local heating or preheating the end portion of the metal member is performed by the use of a preliminary induction heating coil which is maintained in predetermined relative relationship with the metal member for a predetermined period of time.