Patent ID: 6386813
Filing Date: 2002-05-14
Classification: B21D,B65D

Abstract:
Method of fabricating a safe container end closure comprising:positioning a shell in a fabricating machine, the shell including a bottom wall and a sidewall extending upwardly from the bottom wall; forming first and second folds in the sidewall of the shell, the first fold opening inwardly and the second fold opening outwardly; pressing a V-shaped die element having a rounded nose possessing a radius against the sidewall of the shell at a place on the sidewall located radially inwardly of the radially outermost extent of the first fold to form in the sidewall a V-shaped score line having a rounded nose possessing a radius, the V-shaped score line dividing the sidewall of the shell into a central lid portion positioned on an inner side of the score line and a peripheral lid portion positioned on an outer side of the score line, the V-shaped score line permitting the central lid portion to be severed from the peripheral lid portion; and securing an opening tab to the bottom wall of the shell so that a nose of the opening tab is positioned adjacent the score line.