Easily openable paperboard carton for foodstuffs

Details Easily openable paperboard carton for foodstuffs Easily openable paperboard carton for foodstuffs

1990-04-09

1991-07-09

Elkins, Gary E.

Special receptacle or package

With pallet feature

Knockdown or collapsible type

206626, 229134, B65D 554

Patent

active

050297147

ABSTRACT:
A paperboard carton formed from a unitary blank of paperboard. A side flap of the carton bottom is overlapped with and sealed to a side flap of the top cover. At least one of these flaps is provided with spaced abseal (adhesion resistant) areas. The interabseal areas are provided with adhesive to seal against the other, overlapping flap. The interabseal areas are bordered by cut lines extending partially through the paperboard, and are preferably embossed so as to be raised from the remaining flap area. The other front and side flaps are conventionally sealed together by an adhesive, such as a heat activated PET coating on the paperboard surface. To effect opening, these two flaps are pulled apart with the adhered together, interabseal are a of one of these flaps delaminating by virtue of the cut lines, the latter extending completely through the PET coating.

REFERENCES:
patent: 1776923 (1930-09-01), Nemoede
patent: 2114134 (1938-04-01), Weiss
patent: 2154475 (1939-04-01), Shearer
patent: 2259822 (1941-10-01), Kienlen
patent: 2828060 (1958-03-01), Brown
patent: 2844297 (1958-07-01), Holmes
patent: 3015432 (1962-01-01), Tyrseck
patent: 3096918 (1963-07-01), Van Dyke et al.
patent: 3423005 (1969-01-01), Leibson et al.
patent: 3491937 (1970-01-01), Brastad
patent: 4250994 (1981-02-01), Focke

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