Packaging container

Details Packaging container Packaging container

1978-06-20

1980-04-15

Shoap, Allan N.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

229 31, 229 17R, 229 37R, B65D 558

Patent

active

041979621

ABSTRACT:
A packaging container which can be liquid tight or hermetically sealed is formed from a flat blank comprising an outer member which can be formed into a tubular body with closure flaps at each end and a filling and dispensing aperture, and a flexible membrane fixed to the inside of the outer member along a continuous peripheral seal line. The membrane covers at least 50% of the body portion of the outer member in the widthwise direction and extends over uninterrupted flap portions adjacent the covered body portion and over the filling and dispensing aperture so that after erection in conventional manner filling causes the membrane to move away from the body portion covered in the flat blank.

REFERENCES:
patent: 2177918 (1939-10-01), Vogt et al.
patent: 2713963 (1955-07-01), Andrews et al.
patent: 3021043 (1962-02-01), Phin
patent: 3460739 (1969-08-01), Asman

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