Patent ID: 7748563
Filing Date: 2010-07-06
Classification: B21D,B65D

Abstract:
1. A stacking of can end members in axially stacked relationship, the stacking comprising: an upper can end member stacked on an identical lower stacked can end member, the upper and lower stacked can end members comprising: a central panel ( a countersink ( a stepped profile about an outer peripheral portion of the center panel joining the countersink with the center panel, the stepped profile comprising a first panel radius integral with an inner wall of the countersink interconnected to a second panel radius by a substantially horizontal segment, the second panel radius joined to a peripheral edge of the central panel wherein the second panel radius has a height greater than a height of the first panel radius; a chuckwall ( a bend ( wherein the bend on the lower can end member is adapted to position the chuckwall of the lower can end member outwardly from an approach point of the upper can end member, wherein the lowermost portion of the countersink of the upper can end member is positioned at least below the height of the second panel radius on the lower can end member and above a height of the bend on the lower can end member, and wherein the upper and lower can end members engage each other along respective seaming curl areas, and there is no interference generated by remaining portions of the upper and lower can end members wherein the upper and lower can end members further comprise a baseline ( wherein the baseline of the upper can end member is located at a third height (H