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:
Jul. 02, 1985
Filed:
Nov. 21, 1983
Yasunori Miyamatsu, Ayase, JP;
Yasuo Kaga, Yokohama, JP;
Masanori Aizawa, Yokohama, JP;
Kazuhisa Ishibashi, Tokyo, JP;
Hiroshi Ueno, Yokosuka, JP;
Toyo Seikan Kaisha Ltd., Tokyo, JP;
Abstract
Disclosed is an easily-openable vessel closure comprising a can end member having a preformed opening and an easily-tearable opening tab arranged on the outer side of the can end member to cover the opening and adhere closely to the peripheral portion of the can end member contiguous to the opening, wherein the opening of the can end member has such a size and shape that the opening is longer in the radial direction of the can end member, the opening extends from the inside of a circle concentric with the can end member, which has a diameter 0.35 time the seaming diameter of the can end member, to the point close to the outer periphery of the can end member and the portion defined by the contour of the opening and said circle involves a circle having a diameter of 5 mm, and wherein a thermoplastic resin coating having a -shaped section is formed on the cut edge of the opening of the can end member and the contiguous peripheral portion of the can end member and the opening tab is bonded to the can end member through said resin coating.