Abstract: The bottom wall of a two-piece or three-piece container is extended outside the base of the container sidewall or chime. The extended bottom wall forms an opening for dispensing the contents of the container and for filling the container. A twistable cap fits over the container opening and defines a cap opening of similar size, which can be moved into a position registered with the container opening.

Abstract: A method is provided for forming an end closure for a surrounding sidewall of a container, such as an aluminum can. The method includes forming a central body panel oriented transversely to the central axis of the can and forming an outer surrounding margin portion joined to the sidewall such that the margin portion has a support section oriented longitudinally relative to the sidewall. A portion of the margin is corrugated to provide a rib structure having longitudinally extending first rib components located on the support section. This method can be accomplished during the ironing and doming of a can.