Envelopes – wrappers – and paperboard boxes – Paperboard box – Including a polygonal – nonrectangular wall
Patent
1995-06-06
1997-05-13
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Including a polygonal, nonrectangular wall
220443, 229406, 229906, 229939, B65D 134, B65D 144
Patent
active
056284519
ABSTRACT:
A method for forming a corrugated paperboard and a container made therefrom is provided. The corrugated paper is formed with a first layer of flat paperboard to which a second layer of contoured paperboard is attached. The contoured layer of paperboard is further formed with a plurality of flutes, each flute including a first flute tip and a second flute tip, the flute being substantially vertical at the midpoint between the flute tips. The method of forming the corrugated paperboard container comprises placing the corrugated paperboard into a stamping dye which has a male dye portion and a female cavity shaped in the shape of which the paperboard is to be formed. The paperboard is then pressed between the dye and the cavity to apply a pressure to the paperboard. Heat is also applied to the paperboard simultaneously with the application of pressure. The dye is then removed from the cavity and the paperboard container is formed. The paperboard container is formed from a continuous sheet of paperboard, and no cuts are made in the paperboard when forming the paperboard container.
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Elkins Gary E.
Newark Group Industries, Inc.
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