METHOD AND APPARATUS FOR FORMING FINAL-SHAPED CONTAINERS USING LIQUID TO BE CONTAINED THEREIN

Title:

METHOD AND APPARATUS FOR FORMING FINAL-SHAPED CONTAINERS USING LIQUID TO BE CONTAINED THEREIN

Document Type and Number:

WIPO Patent Application WO/2019/136551

Kind Code:

A1

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.

Inventors:

BECK CHRISTOPHE SIMON PIERRE (FR)
WITZ JEAN-CHRISTOPHE (FR)
RASCHE SEBASTIAN (DE)

Application Number:

PCT/CA2018/051678

Publication Date:

July 18, 2019

Filing Date:

December 28, 2018

Export Citation:

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Assignee:

HUSKY INJECTION MOLDING SYSTEMS LTD (CA)

International Classes:

B29C49/18; B29C49/06; B29C49/10; B65B3/02; B67C3/02

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Other References: