Patent ID: 7472575
Filing Date: 2009-01-06
Classification: B21D

Abstract:
1. Tooling adapted to manufacture a non-circular can end for attachment to a container having walls which form a non-circular opening, said non-circular can end comprising: a recessed panel having a product side facing toward said container and a public side facing away therefrom; a number of safety folds integrally connected to the recessed panel; a non-circular score line adjacent to the safety folds that defines a severable panel portion in said recessed panel, said severable panel portion having a corner with a predetermined radius of curvature; a tab attached to said severable panel portion with a rivet at said corner thereof, said tab including a handle end and a nose end, said nose end structured to sever said scoreline at said corner when said handle end is lifted; a chuckwall having a first end and a second end, said first end of said chuckwall integral with said recessed panel; and a seaming portion integral with the second end of said chuckwall and structured to attach and secure said non-circular can end to the walls of said container with the scoreline located adjacent to the first end of the chuckwall, wherein said tooling comprises: upper tooling and lower tooling wherein one of at least some of said upper and lower tooling is adapted to be advanced towards the other of at least some of said upper and lower tooling in order to form an initial bubble bend for the formation of said integral rivet in said corner of said severable panel portion and to form at least one of said number of preliminary folds integral with said recessed panel.