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1. (WO2009117805) A PREFORM AND A MOLD STACK FOR PRODUCING THE PREFORM

Pub. No.:    WO/2009/117805    International Application No.:    PCT/CA2009/000153
Publication Date: Oct 1, 2009 International Filing Date: Feb 13, 2009
IPC: B29B 11/14
B29B 11/08
B29C 45/26
Applicants: HUSKY INJECTION MOLDING SYSTEMS LTD.
WITZ , Jean-Christophe
MAI , Arnold
SIGLER, Laurent Christel
Inventors: WITZ , Jean-Christophe
MAI , Arnold
SIGLER, Laurent Christel
Title: A PREFORM AND A MOLD STACK FOR PRODUCING THE PREFORM
Abstract:
Disclosed herein are a preform (500) and a mold stack for producing the preform (500). The preform (500) is suitable for blow-molding into a final-shaped container. The preform (500) comprises a neck portion (502); a gate portion (506); and a body portion (504) extending between said neck portion (502) and said gate portion (506); the neck portion (502) including a support ledge (512), the support ledge (512) being associated with a metal contacting surface (520) and a weight, and wherein a ratio of the metal contacting surface (520) to the weight modulated for a base line support ledge thickness curve is selected in a range of between 0.1 and 1000.