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:
Jan. 28, 2025

Filed:

Apr. 06, 2021
Applicant:

Nissei Asb Machine Co., Ltd., Nagano, JP;

Inventors:

Toshiteru Oike, Nagano, JP;

Yoichi Tsuchiya, Nagano, JP;

Daizaburo Takehana, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 49/00 (2006.01); B29C 45/16 (2006.01); B29C 49/02 (2006.01); B29C 49/06 (2006.01); B29C 49/22 (2006.01); B29L 9/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/071 (2022.05); B29C 45/16 (2013.01); B29C 49/062 (2013.01); B29C 49/22 (2013.01); B29C 2049/023 (2013.01); B29C 2949/0715 (2022.05); B29C 2949/078 (2022.05); B29C 2949/0781 (2022.05); B29C 2949/3008 (2022.05); B29C 2949/3012 (2022.05); B29C 2949/3016 (2022.05); B29C 2949/3022 (2022.05); B29L 2009/001 (2013.01); B29L 2031/7158 (2013.01);
Abstract

In a manufacturing method for a delamination container, in a first injection molding, a first recess portion is formed by a first protrusion portion in at least part of a first layer. In a second injection molding, a second recess portion which penetrates the first layer and through which a surface of a second layer is exposed is formed in a preform by inserting a second protrusion portion into the first recess portion. During a blow molding, the second recess portion is stretched to form an air introduction hole in an outer layer of the delamination container.


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