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:
Jun. 07, 2022
Filed:
Sep. 28, 2018
Applicant:
Nissei Asb Machine Co., Ltd., Nagano, JP;
Inventors:
Assignee:
NISSEI ASB MACHINE CO., LTD., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 49/18 (2006.01); B29C 49/12 (2006.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/18 (2013.01); B29C 49/12 (2013.01); B29K 2067/003 (2013.01); B29L 2031/7158 (2013.01);
Abstract
A blow molding method includes: performing a primary blowing on a resin preform to form an intermediate molded product; and performing a final blowing on the intermediate molded product to form a final molded product, and at least one step of performing the primary blowing and the final blowing includes a thinning step of continuously repeatedly performing, within a predetermined time, steps of: stretching an object by blowing; and contracting stretched parts of the object by exhausting blown air.