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. 02, 1981
Filed:
Aug. 03, 1979
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22F / ; C21D / ;
U.S. Cl.
CPC ...
148153 ; 148155 ; 148156 ; 266102 ; 266103 ; 266110 ; 266111 ; 432-8 ; 432 58 ; 432145 ;
Abstract
During the process in which a metal strip is moved in a floating condition, the metal strip is first heated, and thereafter cooled and annealed. In heating the metal strip, the metal strip is heated so that a central portion widthwise thereof is increased in temperature more than that of both edges widthwise thereof. The metal strip is heated in a manner as described whereby a great thermal stress is not introduced in the metal strip and consequently, there is less possibility to produce wrinkles in the metal strip.