Method and apparatus for cooling during in-mold handle attachment
AssigneeGraham Packaging PET Technologies Inc.
InventorsSuppayan M. Krishnakumar, David Piccioli
Life of this patent
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Abstract
Method and apparatus for in-mold handle attachment, wherein a portion of a blow-molded container is formed about a retaining member on a handle during blow molding. After forming the container portion about the retaining member, a cooling medium is directed at the location of the container portion in order to accelerate the cooling rate at the container portion. There is achieved at least one of an improvement in the security of the attachment of the handle to the container, and a reduction in the blow-mold processing time.
Claims22
In a method of in-mold handle attachment wherein a portion of a blow-molded container is formed about a retaining member on the handle during blow-molding, the improvement comprising:
- after forming the container portion about the retaining member, directing a cooling medium at the location of the container portion in order to accelerate the cooling rate at the portion.
An improved method of in-mold handle attachment, wherein a portion of a blow-molded container is formed about a retaining member on the handle during blow-molding in a mold cavity, the improvement comprising:
- reducing the time for cooling the blow-molded container in the mold cavity by directing a cooling medium at the container portion in order to accelerate the rate at which the container portion is cooled.
A method of in-mold handle attachment, including steps of:
- expanding a preform in a blow mold to form a blow-molded container, wherein a portion of the blow-molded container is formed about a handle during blow-molding;
- and
- directing a cooling medium at the location of the container portion.
The method of claim, 8, wherein a slow exhaust is provided to promote flow of the cooling medium and a rapid exhaust is provided for exhausting an expansion medium.
The method of 8, wherein the cooling medium is directed at the container portion from within the blow-molded container.
Dependencies are inferred from the claim text.