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:
Sep. 04, 2018

Filed:

Mar. 05, 2013
Applicant:

Nippon Closures Co., Ltd., Tokyo, JP;

Inventors:

Katsuhito Ichimura, Kanagawa, JP;

Mitsuo Kumata, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 41/16 (2006.01); B65D 41/18 (2006.01); B23P 11/00 (2006.01); B21D 39/00 (2006.01); B65D 43/08 (2006.01); B65D 39/00 (2006.01); B21D 51/44 (2006.01); B21D 51/50 (2006.01); B65D 53/00 (2006.01); B21D 51/46 (2006.01); B65D 41/14 (2006.01); B65D 41/34 (2006.01); B21J 5/00 (2006.01);
U.S. Cl.
CPC ...
B21D 51/44 (2013.01); B21D 39/00 (2013.01); B21D 51/46 (2013.01); B21D 51/50 (2013.01); B21J 5/00 (2013.01); B65D 41/145 (2013.01); B65D 41/34 (2013.01); B65D 41/348 (2013.01); B65D 53/00 (2013.01); Y10T 29/49845 (2015.01);
Abstract

A method for manufacturing a cap, which can insert a sheet member easily into a predetermined position of an upper part inside a cap body, without causing deformation to the sheet member or the cap body. The sheet member does not separate when a container is brought to reduced pressure. An annular protruding portion protruding on a lower surface side is formed in an annular flat region of a sheet member of an inside plug. After or at the same time that the sheet member is inserted into and installed at a predetermined position within a cap body, the annular protruding portion is pressed axially toward a top panel wall and deformed so as to become close to a flat shape, to enlarge the outer diameter of the sheet member. The inside plug is thereby held to be inseparable from inside a skirt wall and to be axially movable.


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