Patent ID: 7819582
Filing Date: 2010-10-26
Classification: B65D,Y10S

Abstract:
1. A container blank comprising: a bottom-forming wall and two opposite side walls, said walls being joined along boundary lines to form an essentially flat container blank, the container blank having: an upper portion, a bottom portion, a central portion defined by the upper portion and the bottom portion and also by a front boundary line and an intermediate boundary line, said portions being arranged along a longitudinal axis of the container blank, and a handle portion defined by the intermediate boundary line and a rear boundary line, wherein the intersections between the front boundary line and a first geometrical line coinciding with a transition between the upper portion and the central portion, the front boundary line and a second geometrical line coinciding with a transition between the bottom portion and the central portion, the rear boundary line and said first geometrical line, and the rear boundary line and said second geometrical line constitute corners of a parallelogram comprising an angle of inclination defined by a lateral side of said parallelogram and the longitudinal axis, said angle being acute towards the bottom portion, the front boundary line and the intermediate boundary line along the longitudinal axis of the container blank give the central portion an essentially symmetrical, frustoconical shape, the front boundary line has a concave curvature relative to the central portion, the concave curvature of the front boundary line has an end point at the intersection between the front boundary line and said second geometrical line, and the intermediate boundary line has a concave curvature relative to the central portion, the concave curvature of the intermediate boundary line has an end point at the intersection between the intermediate boundary line and said second geometrical line.