Abstract: The purpose of the present invention is to prevent or minimize the damage to a carton caused by sudden impact. This damage results most often from the cartons being dropped from some height. The type of carton damage is usually corner fracture. The tensile forces applied to the corner as the carton hits causes a tear to form at the base of the vertical score line where the carton folds to make the bottom corner. A single score line is formed in and at the side of the side panels of a carton. Each score line extends outwardly from each side of the side vertical score lines which define the side panels of the carton. The purpose of these score lines is to induce a fold to form preferentially at the intersection of the score line and the vertical score line and away from the carton bottom corner when the carton is dropped or suddenly shocked. Each of the score lines should be long enough and placed a distance from the bottom wall to induce the fold line to form preferentially away from the bottom corner.

Abstract: A coated paperboard container and a blank for constructing same are disclosed as including a body portion having a side seam flap secured adjacent the edge portion of one of four side panels and an upper end that is closed by a folded top end closure which includes closure panels having a construction that enhances foldability and sealing. Front and back triangular gable panels of the top end closure are each flanked by a pair of triangular fold-back panels that have different sizes than each other so as to facilitate folding of the sealed top end closure from a vertical position in a direction toward the smaller of the fold-back panels. The lower score line portions adjacent the smaller inner roof panel are formed wider than the other score lines so as to further enhance the folding of the top sealed panels in the direction of the gable side bearing the side seam flap upper extension.