Blow mold shell and shell assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 3, 2002
Grant Date -
Dec 13, 2001
app pub date -
May 4, 1999
filing date -
May 4, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved blow mold shell, and a blow mold shell assembly, for use in blow molding containers is disclosed. The blow mold shell comprises an elongate unitary blow mold shell body defining a partial molding cavity, the partial molding cavity having a container neck forming portion and a container body forming portion. A first continuous cooling circuit is defined within the shell with respect to the neck forming portion of the molding cavity. A second separate, and independent, continuous cooling circuit is defined within the shell with respect to the body forming portion of the molding cavity. So constructed, the neck and body portions of a blow mold container may be separately cooled, and/or heat-treated, as desired, during the molding process to allow the sidewall portion of the container to be molded in as thin a sidewall section as possible in contrast to the neck portion of the container. The shell assembly is comprised of two substantially identical ones of the blow mold shells releasably mated to one another, and also includes a base assembly received at the second end of the blow mold shells. The base assembly defines a base portion of the molding cavity, and has a separate cooling circuit for cooling the base forming portion of the molding cavity.
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