Patent ID: 8662332

Claim:
A blow molded plastic container, comprising: a main body portion, said main body portion being shaped so as to be substantially round in horizontal cross-section; and a champagne-type base portion, said base portion defining a generally circular standing ring and an elevated push-up portion that is positioned radially inward of said standing ring, and wherein said push-up portion has a bottom wall portion that is shaped to define: a central region; an annular, substantially straight and substantially vertical rise portion that is positioned immediately radially inward of said standing ring; and a plurality of radially oriented waves, each of said waves extending radially outwardly from said central region to said vertical rise portion, each of said waves further being shaped so as to subtend a substantially constant angle along its length from the central region to the vertical rise portion; and wherein each of said waves includes a peak portion that is convexly radiused to extend downwardly and a trough portion that is concavely radiused to extend upwardly, and wherein each of the peak portions and trough portions of the waves increases in both amplitude and width in proportion to the distance from the central region of the bottom portion.