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. 31, 1978
Filed:
Jul. 29, 1976
Applicant:
Inventors:
Susumu Hanyo, Yokohama, JP;
Jousuke Yamaguchi, Kanagawa, JP;
Yoshiyuki Morishita, Tokyo, JP;
Itoshi Noguchi, Kawasaki, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
72128 ; 72342 ; 72364 ; 72702 ; 72369 ;
Abstract
A means and method is provided for reducing radius expansion of bent, elongated materials due to 'spring-back' occurring after the material is released from the bender clamps of a hot bending apparatus, wherein the longitudinal axis of the unbent portion of the material is displaced by a small angle from a perpendicular to a line running through the center of the bend and the bender heating means.