A profiled bottom wall for a drawn and ironed container having a cylindrical side wall and integral bottom wall is disclosed herein. The bottom wall and side wall merge with each other along an annular outwardly directed bead and the bottom wall has an annular inwardly directed bead located within the outwardly directed bead. The adjacent ends of the two beads are interconnected by an arcuate portion that produces a convex surface within the container and the portion of the container bottom wall within the inwardly directed bead is generally flat and merges with the adjacent end of the inwardly directed bead along a further arcuate portion that defines a concave surface within the container.

A drawn and ironed easily hand-held metallic container construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall. The bottom wall has a first substantially frustoconical portion adjoining the sidewall and extending downwardly and toward the longitudinal axis, a second frustoconical portion interconnected to the first frustoconical portion and extending upwardly therefrom toward the longitudinal axis. The bottom wall also has a substantially semi-torroidal inwardly convex bead adjoining the second frustoconical portion and a dished portion adjoining the semi-torroidal bead with the dished portion having a flat central part. The semi-torroidal bead improves the capability of bottom wall to withstand internal pressure while the dished portion with its flat central part is positioned at precisely controlled position based on the desired volume of the container construction and enables wear of tooling employed to make the container construction to be taken into account in determining the controlled position.

A generally dome-shaped end closure for a receptacle, such as, the bottom end wall of a beverage container is roll-formed in a closely coordinated sequence of steps wherein the receptacle is fixed in position so that the external surface of the end wall to be formed is disposed in facing relation to a yieldable support, and rotatable bearing surfaces are simultaneously advanced into engagement with the end wall while being continuously rotated about a common axis whereby to form one or more annular ribs in the end wall while forcing the end wall to assume a generally convex or dome-shaped configuration as it is expanded outwardly against the yieldable support. A roll-forming apparatus for carrying out the method of the present invention permits a succession of end walls to be roll-formed on a revolving turret which carries a plurality of roller assemblies, each roller assembly defining the rotatable bearing surfaces which are rotated by a spindle drive, the spindle drive being axially advanced by a cam member as it is rotated to cause the associated roller assembly to advance axially through the interior of each receptacle for the roll-forming operation followed by retraction away from the receptacle whereupon the yieldable support is operative to release the can from its fixed position for unloading into a separate stacking area.

This bowling ball carrying container resembles a large can of a sportsman's favorite brand of beverage, such as soda or beer. Primarily, it consists of a main body imprinted with a brand name of soda or beverage, and the bottom wall includes a curved recess for fitting the contour of a bowling ball received in the container. The main body further includes a lid, having a pair of locking mechanisms for retaining it in place, so as to enable the user to carry the container, and room is provided in the container for the bowler's shoes and other equipment.

A drawn and ironed easily hand-held metallic container construction is provided and has a central longitudinal axis, a sidewall, and a high-performance bottom wall. The bottom wall has a first substantially frustoconical portion adjoining the sidewall and extending downwardly and toward the longitudinal axis, a second frustoconical portion interconnected to the first frustoconical portion and extending upwardly therefrom toward the longitudinal axis. The bottom wall also has a substantially semi-torroidal inwardly convex bead adjoining the second frustoconical portion and a dished portion adjoining the semi-torroidal bead with the dished portion having a flat central part. The semi-torroidal bead improves the capability of bottom wall to withstand internal pressure while the dished portion with its flat central part is positioned at a precisely controlled position based on the desired volume of the container construction and enables wear of tooling employed to make the container construction to be taken into account in determining the controlled position.