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:
Sep. 26, 1978
Filed:
Mar. 25, 1977
Applicant:
Inventors:
Yuzo Takahashi, Iwatsuki, JP;
Yoshimi Wazima, Iwatsuki, JP;
Akira Nakada, Iwatsuki, JP;
Yasuyuki Tanaka, Iwatsuki, JP;
Katsumi Nagai, Iwatsuki, JP;
Nobuo Takahashi, Iwatsuki, JP;
Hiroshi Matsuda, Iwatsuki, JP;
Eizi Aizawa, Iwatsuki, JP;
Shiro Oyama, Iwatsuki, JP;
Assignee:
Hokkai Can Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B65D / ; B65D / ;
U.S. Cl.
CPC ...
428 36 ; 138145 ; 138156 ; 220 79 ; 220 83 ; 428129 ; 428130 ; 428188 ;
Abstract
A lapped seam can having a high safety characteristic used as containers of soft drinks or beer wherein the cut-burrs at the end of the inner end portion of the can blank are completely removed so that micro-leak passages apt to occur in the lapped seam can are shut off, thereby permitting a long term storage of the can content without deterioration by preventing metal from being dissolved out from said inner end portion.