Anti-bowing easy opening carton

Details Anti-bowing easy opening carton Anti-bowing easy opening carton

1998-05-18

2000-08-22

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Having means to facilitate opening the box by severing box...

229102, 229222, 229244, 493128, B65D 554

Patent

active

061058572

ABSTRACT:
A carton having one or more closure flaps with a delaminating window formed by lines which are not substantially straight in a direction parallel to the fold line separating the flap from the panel of the carton. Preferably, the delaminating window is formed from an undulating curve. The lack of straight lines tends to minimize the risk that bending will occur and interfere with the sealing of the carton. The invention also includes a process of sealing the cartons by adhering the delaminating window to another flap.

REFERENCES:
patent: 1992222 (1935-02-01), LaGrua
patent: 2259822 (1941-10-01), Kienlen
patent: 2828060 (1958-03-01), Brown
patent: 2852180 (1958-09-01), Inman
patent: 2881968 (1959-04-01), Inman
patent: 2884180 (1959-04-01), Inman
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patent: 2992767 (1961-07-01), Inman
patent: 3015432 (1962-01-01), Tyrseck
patent: 3113713 (1963-12-01), Green
patent: 3163347 (1964-12-01), Bixler
patent: 3182887 (1965-05-01), Larson
patent: 3194474 (1965-07-01), Rumerger
patent: 3261536 (1966-07-01), Bixler
Agreement between Graphic Packaging Corporation and Lever Brothers Company.

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