Method of reforming a can end

摘要

A method is disclosed for reforming a metallic can end to increase the pressure holding capabilities of the container to which the can end is seamed comprising the steps of increasing the depth of an annular groove with respect to a substantially planar center wall and reducing the radius of curvature of a curved portion at the bottom of the annular groove between an inner wall on the inside of the annular groove and an integral chuckwall on the outside of the annular groove.