Patent ID: 6170739
Filing Date: 2001-01-09
Classification: B65D

Abstract:
A container comprising:a liquid-resistant planar blank, said blank having folding lines and edge flaps and a bottom folding line and a double foldable bottom portion, said bottom portion having halves which are adapted to be pulled in by an attached hand grip formed by a curved edge formed along the bottom folding line;wherein the container may be folded flat along said bottom folding line and said double foldable bottom portion;the container having a liquid-tight inner portion formed from said double foldable bottom portion and connected at opposite edges of the container inner portion to a container outer portion, which forms a bracing, enveloping outer portion for the inner portion, wherein a bottom bracing portion braces said double foldable bottom portion and opposite sides of the container in a direction across a central plane of the container through said bottom folding line of said double foldable bottom portion,said bottom bracing portion comprising a first permanent bracing section having a first and a second half which is rigidly fastened to said double foldable bottom portion on the one side of said bottom folding line, and a second readjustable bracing section, which, when the container is in a flattened position, projects freely outwards past said bottom folding line, said bottom bracing portion having inherent rigidity in a direction across said bottom folding line and having a longitudinal dimension across said bottom folding line corresponding to or substantially corresponding to the breadth of the ready-for-use container in a direction across said bottom folding line;the container being foldable to a flattened position and expandable to an expanded position for use.