End panel for containers

An end panel for containers consisting of a panel having a substantially flat central panel portion, a first bead surrounding said central panel portion and comprising an inverted U-shaped arcuate portion extending from and raised above said central panel and extending downwardly into a first flat wall portion, said first bead having a first radius and said first flat wall portion defining an angle greater than 10.degree. and less than 16.degree. with respect to a plane extending perpendicular to said flat central portion, a second bead extending from the outer end of said first flat wall portion and comprising a U-shaped portion, said first flat wall portion having a length sufficient to locate said second bead entirely below the level of said central panel, a second flat wall portion extending upwardly from said second bead, said second flat wall portion defining an angle less than 4.degree. with respect to said plane, a third flat wall portion integral with an outer edge of said second flat wall portion, said third flat wall portion defining an angle in the range of 14 to 16.degree. with respect to said plane, said second bead and said second flat wall portion being dimensioned so that the distance along said plane between the juncture of said second and third flat wall portions and the peripheral edge of said second bead is in the range of 0.080 0.094 inches, and a peripheral curl on the periphery of said third flat wall portion adapted to be seamed to a container body so that pressure applied to said central panel portion will vary said angles and thereby increase the resistance of said end to buckling. --