Barrier spout and cap for flexible bags or pouches

Dispensing – Collapsible wall-type container – Nonmetallic

Patent

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Details

220358, 222542, 222563, B65D 3904

Patent

active

043622550

ABSTRACT:
A barrier spout and cap assembly mounted on a flexible bag or pouch of plastic laminate film having barrier material incorporated therein to prevent the permeation of various gases and especially oxygen. The structures of the spout and its cooperating removable and replaceable cap are such that they provide a barrier to gas permeation at the joint between the spout and bag and through the cap. The cap and associated barrier are removeable and replaceable to facilitate filling of the bag.

REFERENCES:
patent: 1037272 (1912-09-01), Lindsay
patent: 3093274 (1963-06-01), Galbierz
patent: 3260411 (1966-07-01), Dobson
patent: 3618814 (1971-11-01), Nagroski
patent: 3760969 (1973-09-01), Shimamoto et al.
patent: 4132331 (1979-01-01), Magerle
patent: 4280634 (1981-07-01), Wiesenberger et al.

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