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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.:

US 10994903 B1

PDFFull Text
Date of Patent:
May. 04, 2021

Filed:

Oct. 27, 2011

Plastic cap and production method thereof

Applicants:

Hideaki Kawamura, Tochigi, JP;

Takashi Uemura, Hiroshima, JP;

Inventors:

Hideaki Kawamura, Tochigi, JP;

Takashi Uemura, Hiroshima, JP;

Assignee:

DAIKYO SEIKO, LTD., Tochigi, JP;

Attorney:

Hamre, Schumann, Mueller & Schumann, P.C.

Primary Examiner:

Anthony D Stashick

Assistant Examiner:

Blaine G Neway

Int. Cl.
CPC ...
B65D 51/00 (2006.01); B29C 65/00 (2006.01); B29C 65/76 (2006.01); B65D 51/18 (2006.01); A61J 1/14 (2006.01); B29C 65/42 (2006.01); B29C 65/08 (2006.01); B29L 31/56 (2006.01);
U.S. Cl.
CPC ...
B65D 51/002 (2013.01); A61J 1/1406 (2013.01); A61J 1/1425 (2015.05); A61J 1/1431 (2015.05); B29C 65/42 (2013.01); B29C 65/76 (2013.01); B29C 66/126 (2013.01); B29C 66/131 (2013.01); B29C 66/21 (2013.01); B29C 66/542 (2013.01); B29C 66/545 (2013.01); B29C 66/61 (2013.01); B65D 51/18 (2013.01); B29C 65/08 (2013.01); B29C 66/71 (2013.01); B29C 66/712 (2013.01); B29L 2031/565 (2013.01); B65D 2251/009 (2013.01); B65D 2251/0015 (2013.01); B65D 2251/0056 (2013.01);
Abstract

Disclosed is a plastic cap useful for steadfastly maintaining a sealed state created in a container having a mouth with an opening by sealing the opening with a sealing member. The cap has a cap main body and a cover portion integrated with the main body via at least one bridge portion. The main body has a base portion and a top wall. The bridge portion is formed of a synthetic plastic filled in at least one fusion-bonding hole having a diameter of from 0.3 to 3 mm and arranged extending through at least one, preferably one of the main body or cover portion such that the main body and cover portion are integrally fusion-bonded by the bridge portion and the cover portion can be separated from the main body by breaking the bridge portion with hands. A production method of the plastic cap is also disclosed.

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