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:
Aug. 09, 1988
Filed:
Mar. 18, 1987
Applicant:
Inventors:
Hiroshi Matsubayashi, Kamakura, JP;
Naoto Watanabe, Yokohama, JP;
Seishichi Kobayashi, Yokohama, JP;
Toshio Sue, Tokyo, JP;
Kazuo Taira, Tokyo, JP;
Assignee:
Toyo Seikan Kaisha, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q / ;
U.S. Cl.
CPC ...
220269 ; 220270 ; 428 64 ; 428 66 ;
Abstract
A score line defining a portion to be opened is formed on a chromated surface treated steel plate coated with an epoxy type primer so that the score line is cut to the middle of the steel plate in the thickness direction thereof, and an opening tab is bonded and secured to the portion to be opened of the steel plate through a bonding fulcrum composed of a thermoplastic adhesive consisting of amide recurring units and/or ester recurring units so that the push-tearing top end of the opening tab is located on the score line.