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. 06, 2015
Filed:
Dec. 25, 2009
Applicants:
Keinosuke Iguchi, Tokyo, JP;
Hideyuki Nakamura, Tokyo, JP;
Inventors:
Keinosuke Iguchi, Tokyo, JP;
Hideyuki Nakamura, Tokyo, JP;
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyon, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D 5/08 (2006.01); B21D 5/12 (2006.01);
U.S. Cl.
CPC ...
B21D 5/08 (2013.01); B21D 5/12 (2013.01);
Abstract
A roll former for steel plate () which enables edge corner deformation of steel plate edges () to be avoided, that is, a roll former for steel plate comprised of a top roll () and a bottom roll (), the roll former for steel plate characterized by forming convex curved parts () having a bending direction opposite to a bending direction of the steel plate () in regions of the bottom roll (), which forms the outer side of the steel plate (), which contact the steel plate edges ().