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.

Date of Patent:
Nov. 27, 1984

Filed:

Dec. 29, 1982
Applicant:
Inventors:

Mikio Kitano, Toyota, JP;

Hideaki Tobita, Toyota, JP;

Toshio Uno, Okazaki, JP;

Kyoichi Yamaguchi, Aichi, JP;

Ichiyoshi Tsuchiya, Okazaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72379 ; 72384 ; 72404 ;
Abstract

A beaded edge is formed on a plate member, which has an upstanding outer edge bent with a predetermined radius of curvature, by placing the plate member on a lower die and applying a uniform force against the free edge of the upturned portion at an approximately 45.degree. angle to turn the outer portion inwardly to form an angle of about 45.degree. with the plate member, and then pressing the free edge downward into contact with the plate member while maintaining a substantially constant curvature of the bend region to produce a beaded edge.


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