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:
Feb. 06, 2018
Filed:
May. 15, 2014
Tamotsu Toyoda, Tokyo, JP;
Hiroshi Hosokoshiyama, Tokyo, JP;
Mamoru Sato, Tokyo, JP;
Yasuhiro Ishizawa, Tokyo, JP;
Tamotsu Toyoda, Tokyo, JP;
Hiroshi Hosokoshiyama, Tokyo, JP;
Mamoru Sato, Tokyo, JP;
Yasuhiro Ishizawa, Tokyo, JP;
YOSHINO KOGYOSHO CO., LTD., Tokyo, JP;
Abstract
An injection molding device including a middle flow channel which forms an intermediate layer of a preform which is subject to biaxial stretch blow molding. The middle flow channel s segmented into a predetermined number of flow sub-channels by vertical blocking rib piece(s). Side wall's upstream portions of the vertical blocking rib piece are formed as angled surfaces whose distance from each other decreases from the downstream side to the upstream side, and/or, an end portion of the vertical blocking rib piece that is located on the downstream side is tucked in at least one of the inner flow channel and the outer flow channel.