Method of installing plastic window in a box cover

Details Method of installing plastic window in a box cover Method of installing plastic window in a box cover

1978-03-03

1980-01-08

Coan, James F.

93 366, B31B 182

Patent

active

041822242

ABSTRACT:
A method of installing a flexible, transparent plastic film in a box cover, where the box cover is made of a single blank having a top panel and four hingedly connected side flap panels, and with a central opening that is cut into the top panel as well as portions of each side flap panel includes the steps of opening the box cover blank to a flattened condition, and applying a selective pattern of adhesive on the inside surface of the blank. Next, the sheet of flexible transparent plastic is bonded to the inside surface of the paperboard blank by means of the adhesive, and then the side flap panels are folded upwardly and bonded together to form the box cover. During the folding operation, and by virtue of the placement of the adhesive connecting the flexible transparent plastic film to the blank of the box cover, the folded edges of the plastic film are rounded so as to result in the desired aesthetically pleasing box.

REFERENCES:
patent: 2147614 (1939-02-01), Sidebotham
patent: 2223770 (1940-12-01), Nagle
patent: 3038650 (1962-06-01), Asman
patent: 3040961 (1962-06-01), Meyers

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