Opening device for packaging containers

Details Opening device for packaging containers Opening device for packaging containers

1991-10-03

1993-02-23

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

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

229116, 229216, 229240, B65D 554

Patent

active

051882850

ABSTRACT:
In an opening device for tetrahedral-shaped or parallel piped-shaped packaging containers, a strip of packaging material is provided with tear perforation lines substantially parallel to the longitudinal direction of the strip of material. The tear perforation lines intersecting a transverse seam on the packaging material are located relative to one another such that they converge at a point in a finished packaging container.

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