Wall construction for containers
AssigneeNational Can Corporation
InventorsSeung W. Lyu, Donald Martin
Life of this patent
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Abstract
A drawn and ironed container with a profiled bottom wall is disclosed herein. The profiled bottom wall includes an ellipsoidal dome surrounded by a substantially vertical wall portion which merges with the side wall of the container along an outwardly directed bead. The configuration of the bottom wall substantially increases the resistance to buckling when the container is filled with pressurized product.
Claims10
A container having a cylindrical side wall and an integral bottom wall at the lower end thereof, said bottom wall and side wall being joined by an annular outwardly directed bead having one end joined to said side wall and an opposite end, said bottom wall having an ellipsoidal dome within said opposite end of said bead, said ellipsoidal dome having a central spherical portion defining a first radius having its center located on the center line of the container, said ellipsoidal dome having an annular portion surrounding said spherical portion, said annular portion having a second radius which is less than said first radius, and a substantially vertical portion between the outer periphery of said annular portion and said opposite end of said bead.
Dependencies are inferred from the claim text.