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:
Oct. 31, 2017
Filed:
Feb. 13, 2013
Nissei Asb Machine Co., Ltd., Nagano, JP;
Masayuki Usami, Komoro, JP;
Hiroyuki Tsukamoto, Komoro, JP;
Kazuyuki Yokobayashi, Komoro, JP;
Yoichi Tsuchiya, Komoro, JP;
NISSEI ASB MACHINE CO., LTD., Nagano, JP;
Abstract
A blow molding method includes a primary blow molding step that molds a preform () in a primary blow mold (A) that includes a primary temperature control section () to obtain an intermediate molded article (), a shrinkage step that discharges blow air from the intermediate molded article to shrink the intermediate molded article, and a secondary blow molding step that blow-molds the intermediate molded article () that has shrunken in a secondary blow mold that includes a secondary temperature control section () to obtain a final molded article. The primary blow molding step cools a first intermediate molding region of the intermediate molded article that follows a neck using a first primary temperature control section, and the shrinkage step shrinks a second intermediate molding region of the intermediate molded article of which the temperature is controlled by a second primary temperature control section.