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:
Sep. 20, 2011
Filed:
Jun. 12, 2006
Yutaka Yoshiike, Nagano-ken, JP;
Kazuhide Hasegawa, Nagano-ken, JP;
Shoji Miyashita, Nagano-ken, JP;
Yutaka Yoshiike, Nagano-ken, JP;
Kazuhide Hasegawa, Nagano-ken, JP;
Shoji Miyashita, Nagano-ken, JP;
A. K. Technical Laboratory, Inc., Nagano-ken, JP;
Abstract
In the hot parison method of stretch blow molding, the temperature distribution of the body wall of the injection molded preform is changed to a gentle gradient slope shape from a mountain shape not by the external application of heat, but by the preform itself, to prepare a bottle with an improved top load value. After the injection-molded preform is released from the mold, cooling of the inner side of the preform is continued by the injection core. Inner side cooling is terminated by release from the injection core. The preform is left in a hollow state for a time, the temperature-averaging time, until the outer surface temperature drops to the stretch blow molding temperature, after passing a peak temperature. While in the molding temperature region, stretch blow molding of the thin-wall hollow molded article is conducted.