Title:
BLOW-MOLDED CONTAINER AND METHOD OF MANUFACTURE
Document Type and Number:
WIPO Patent Application WO2006055979
Kind Code:
A3
Abstract:
A plastic container includes a body of one-piece integrally blow-molded construction. The body has an hourglass shape in side elevation with a waist, a base and a shoulder, and at least one helical external rib extending at least one full turn around the waist. The hourglass shape provides as a result of the blow molding operation minimum hoop stretch and extra thickness and strength at the waist, and maximum hoop stretch and minimum thickness at the shoulder and base. The helical rib at the waist of the container gives mechanical stiffness and resiliency for gripping and squeezing the container at the waist, yet allows angular movement of the shoulder with respect to the base to enhance flexibility.
Inventors:
CHISHOLM BRIAN J (US)
Application Number:
PCT/US2005/042678
Publication Date:
October 19, 2006
Filing Date:
November 22, 2005
Export Citation:
Assignee:
GRAHAM PACKAGING CO (US)
CHISHOLM BRIAN J (US)
CHISHOLM BRIAN J (US)
International Classes:
B65D23/10; B65D1/02
Foreign References:
| US6145681A | 2000-11-14 | |||
| US5908127A | 1999-06-01 | |||
| US6669040B2 | 2003-12-30 | |||
| US20040069740A1 | 2004-04-15 |
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