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US 6,495,089 B1Granted
Blow-molded container and closure, and method and apparatus for making same
AssigneeGraham Packaging Company, L.P.
InventorMatthew A. Crider
Life of this patent
Estimating the term…
Abstract
A blow-molded plastic container and reinforced lid are simultaneously produced in a blow mold. A lid is reinforced by having a portion of the lid formed by blow molding techniques and another portion of the lid formed by compression molding techniques. The container and lid combination, a method for making the combination and apparatus for making the combination are provided.
Claims10
A method of manufacturing a plastic container and associated closure, comprising the steps of:
- extruding a parison within an open set of mold blocks which, when closed, cooperate to form a container forming cavity and a separate closure forming cavity;
- closing said mold blocks on said parison such that said parison extends through said container forming cavity and said closure forming cavity of said mold blocks;
- blow-molding said parison located in said container forming cavity to form a container body;
- separately blow molding a portion of said parison located in said closure forming cavity to form at least a part of a closure;
- and
- compression molding a remaining portion of said parison located in said closure forming cavity to form a remaining part of said closure integral with said blow molded part of said closure.
3 more elements
Dependencies are inferred from the claim text.