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:
May. 10, 1977
Filed:
Jan. 21, 1976
Applicant:
Inventors:
Shizuo Serizawa, Kitakyushu, JA;
Seiichi Sasahira, Kitakyushu, JA;
Assignee:
Nippon Steel Corporation, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72161 ; 72164 ;
Abstract
In straightening steel sections, a machine is used having straightening rollers and pressing rollers each formed with a contact surface and arranged oppositely on vertical line of the straightening rollers. The cross-section of the steel section to be straightened is held between the contact surfaces of the rollers, and the pressing rollers are displaceable in the reduction direction as well as in the axial direction to adjust the amount of displacement.
Quick Actions:
Serizawa, Shizuo. (1977). Method of and apparatus for straightening steel sections (U.S. Patent No. 4022046). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4022046
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile