Pack comprising an outer rigid envelope and an inner flexible en

Details Pack comprising an outer rigid envelope and an inner flexible en Pack comprising an outer rigid envelope and an inner flexible en

1986-09-18

1987-12-29

Little, Willis

Receptacles

Receptacle having flexible, removable inner liner

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

220404, 229 31, B65D 554

Patent

active

047155116

ABSTRACT:
A pack is constructed of a rigid outer envelope with flaps, a flexible inner envelope and means for immobilizing the flexible inner envelope in relation to the outer envelope. The immobilization means extends over one face of the outer envelope and to at least one flap, is designed to form an opening opposite a cut-out or a corresponding cutting line of said face and an opening to the flexible inner envelope and is fixed at least at the opening to the flexible inner envelope to form a tamper-proof membrane.

REFERENCES:
patent: 2352503 (1944-06-01), Walton
patent: 3065894 (1962-11-01), Lipschultz et al.
patent: 3112047 (1963-11-01), Weinreich et al.
patent: 3233817 (1966-02-01), Casady
patent: 3955743 (1976-05-01), Tanneberger

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