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:
Oct. 11, 2022

Filed:

Mar. 21, 2017
Applicant:

Yoshino Kogyosho Co., Ltd., Tokyo, JP;

Inventor:

Yusuke Ishii, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 49/42 (2006.01); B29C 49/12 (2006.01); B29C 49/46 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/4273 (2013.01); B29C 49/12 (2013.01); B29C 49/46 (2013.01); B29C 2049/4664 (2013.01); B29L 2031/7158 (2013.01);
Abstract

A container production method including a preform setup step of disposing a preform in a blow molding mold and engaging a filling nozzle with a mouth of the preform; a blow molding step of liquid blow molding the preform by supplying a pressurized liquid into the preform; a liquid discharge step of releasing the blow molding mold and pressing a trunk of the container after molding with a pressing portion that is inserted from a clearance between separated mold pieces adjacent to each other to discharge a liquid in the container to the outside of the container by a predetermined amount; and a headspace forming step of forming a headspace in the container by separating the filling nozzle from a mouth of the container.


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