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US 5,782,344 AGranted
Liquid plastic film pouch with inner straw
AssigneeGlopak Inc.
InventorsJohn Edwards, Raymond L. Larson
Life of this patent
Estimating the term…
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AssigneeGlopak Inc.
InventorsJohn Edwards, Raymond L. Larson
Estimating the term…
A liquid product carrying plastic film pouch (10) having a straw (12) free-floating in the liquid product (11) is described. The liquid product (11) contained within the inner chamber (13) of the pouch occupies from about 60% to about 90% of the volume of the inner chamber (13) of the pouch and a portion of air from the remaining volume is evacuated in sufficient quantity to permit the side walls (14,15) of the pouch to be collapsed against one another when the pouch is grasped by the hand of a user person. By collapsing the side walls (14,15) together the straw (12) located within the liquid can be grasped and manipulated to puncture the plastic film pouch (1) to extend a portion (12') of the straw (12) exteriorly of the pouch whereby to extract liquid therefrom. The pouch (10) is made of a multilayer resin film having an inner sealant layer (26) formed of a linear low density ethylene-octene copolymer or very low density ethylene copolymer (octene or other copolymers) such that when the straw punctures the film, the inner sealant layer (26) forms a membrane about the straw which exhibits a self-sealing behavior so as to prevent leakage in the punctured region as liquid is extracted from the pouch (10) through the straw (12).
A plastic film pouch for containing a liquid product, said film pouch having opposed side walls sealed about a peripheral edge thereof to define a sealed inner chamber, at least a portion of at least one of said side walls being formed of transparent film for visual access to said inner chamber, a straw of predetermined rigidity located within said inner chamber, said straw having a length shorter than said side wall, a liquid within said inner chamber, said straw being free floating in said liquid and displaceable in said liquid across said side walls of said chamber, said liquid contained within said inner chamber occupying from about 60% to about 90% of the volume of said inner chamber, the remaining volume of said inner chamber having a portion of air evacuated therefrom in sufficient quantity to permit said liquid to be displaced within said inner chamber when said side walls are collapsed towards one another to grasp said free floating straw in said liquid and manipulate it to puncture said plastic film pouch whereby to extend a portion of said straw exteriorly of said pouch to extract liquid from said pouch.
Dependencies are inferred from the claim text.