Patent ID: 8387857
Filing Date: 2013-03-05
Classification: B65D

Abstract:
1. A double walled cup comprising: an inner cup having an upper area and a lower skirt, with the lower skirt having a widening area with a diameter larger than a diameter of a portion of the upper area, a lower edge of the skirt forming a standing base for the cup; and an outer sleeve formed from a blank made of paper material and provided with an inwardly rolled curled part, whereby the blank is joined to form a tube shape by an overlap of two longitudinal edges of the blank; wherein a lower edge of the outer sleeve is folded or rolled so that an inner side of the lower edge of the outer sleeve is placed opposite an inner side of the outer sleeve, thereby forming the curled part; wherein the inner side of the lower edge of the curled part is glued or sealed onto the inner side of the outer sleeve at least in an area of the overlap; wherein a smallest diameter of the curled part is smaller than a largest diameter of the widening area of the skirt; and wherein a diameter of an upper edge of the curled part is larger than the largest diameter of the widening area of the skirt; and wherein the blank comprises a recess in the area of the overlap, so that at the overlap, an area of the curled part extending parallel to the outer sleeve results in an overall thickness which corresponds only approximately to three times a material thickness of the blank.