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. 24, 1986
Filed:
Mar. 04, 1985
Applicant:
Inventors:
Hisatoshi Yoshii, Fukuoka, JP;
Hidekazu Watanabe, Fukuoka, JP;
Osamu Takemoto, Fukuoka, JP;
Hiromi Matsumoto, Fukuoka, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72241 ; 72243 ;
Abstract
A rolling mill stand in which at least one of the back-up rolls is given a convex crown around the roll body in an amount from 0.5 mm to 10 mm in diameter and at least one of the work rolls contacting the back-up rolls is given a concave crown around the roll body under the condition: