Patent ID: 6902103
Filing Date: 2005-06-07
Classification: B26D,B31F,B65D,Y10S

Abstract:
1. A paperboard blank having a predetermined thickness and having at least one score line formed in one surface thereof to form a corner of a container when the blank is folded about said score line, said score line comprising two spaced apart, substantially parallel cut lines extending more than half way through the thickness of the blank to delineate a section of material between the cut lines, and a V-shaped depression formed in the section of material between and substantially parallel to the cut lines, said V-shaped depression having a depth approximately one-half the thickness of the blank and defining a tuck portion between the depression and each respective adjacent cut line, whereby when the blank is folded about said score line to form a corner, said tuck portions are compressed and folded together at said V-shaped depression with said cut lines lying in substantial contiguous relationship to one another to form an interior corner that is essentially a line, free of material protruding into the interior corner.