Patent ID: 6036043
Filing Date: 2000-03-14
Classification: B65D

Abstract:
Easily-opened can lid comprising a cover ring formed by shaping of a sheet metal blank and stamping out the sheet metal portion surrounded by the cover ring, and which has on its outer edge an outer rim for forming a double seam, and on its inner edge an annular flange formed by a flat-pressed roll curl, surrounding a lid opening, a tear-off portion closing the lid opening being attached by heat-sealing to the annular flange, wherein the cover ring and the tear-off portion are manufactured from the same sheet metal blank provided on one side with a heat-sealable coating, wherein the tear-off portion is formed by the stamped-out sheet metal portion stamped out from the common sheet metal blank when forming the cover ring and wherein the roll curl is so shaped and pressed flat to the annular flange, that the final can opening is smaller-than said stamped-out sheet metal portion forming the tear-off portion and its lateral area and the annular flange mutually overlap.