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:
Dec. 14, 2021

Filed:

Dec. 28, 2018
Applicant:

Husky Injection Molding Systems Ltd., Bolton, CA;

Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 49/12 (2006.01); B29C 49/46 (2006.01); B29C 49/06 (2006.01); B29C 49/42 (2006.01); B29C 49/58 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/06 (2013.01); B29C 49/12 (2013.01); B29B 2911/1402 (2013.01); B29C 2049/1238 (2013.01); B29C 2049/4294 (2013.01); B29C 2049/4664 (2013.01); B29C 2049/5827 (2013.01); B29L 2031/7158 (2013.01);
Abstract

A method, system, and preform for liquid forming of the preform into a final-shaped container using the liquid to be contained in the final-shaped container. The preform undergoes a stretching step to a size less than the size of a base of the final-shaped container, before being relocated and stretched to the final shape by the liquid. A stretch rod sealably connects with an interior surface of the preform to partially isolate a gate portion of the preform. The isolation is effected by a portion of the inner surface of the preform extending inwardly, or by a deformable member on the stretch rod which can selectively extend outwardly to contact the interior surface of the preform. The stretch rod includes a selectively heatable tip to heat the gate portion of the preform. The gate portion of the preform includes inner, outer, and core layers which comprise a material configured to affect the thermal properties of the gate portion.


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