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. 23, 1987
Filed:
Feb. 18, 1986
Applicant:
Inventors:
Makoto Toyoshima, Tokyo, JP;
Kikuo Kawamukai, Yokohama, JP;
Assignee:
Toyo Seikan Kaisha, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ; B23K / ;
U.S. Cl.
CPC ...
2191 / ; 72 51 ; 228151 ; 228 443 ; 219 64 ;
Abstract
A method of making a can body is provided. The method comprises forming a ferromagnetic metal blank into a can body preform having adjacent confronting side edges whose edge faces are spaced, magnetizing the confronting edges to have a reverse polarity to each other, so that the confronting edge faces be attracted to each other and brought into abutting relationship to form an abutting portion, and joining the abutting portion. An apparatus for making a can body according to the method is also provided.