Plastic container having an interactive pcr channel structure and moveable base

A beverage container, comprising:

• a base;
• a cylindrical sidewall extending from and integrally formed with the base;
• an upper region extending from the cylindrical sidewall and defining an upper opening, wherein the beverage container comprises a longitudinal axis extending in a direction from the base to the upper opening;
• and
• a plurality of continuous channels having a first as molded channel configuration formed in and extending around a circumference of the cylindrical sidewall, wherein the continuous channels are configured to resist vacuum compression in the radial or transverse direction of the beverage container;
• and
• wherein the base includes an outer wall portion extending from the lower end of the sidewall to a plurality of discontinuous footed portions having footed contact surfaces for supporting the container on a support surface perpendicular to the longitudinal axis and a plurality of webs extending from the sidewall radially along the base portion toward the longitudinal axis in the transverse direction to join a push up portion having a top surface, a side surface and a bottom surface, wherein each one of the webs define a web surface that is closer to the finish than the plurality of footed contact surfaces and comprises a downward surface from the sidewall to the footed contact surfaces and an upward surface within an inner wall portion extending from the footed contact surfaces toward the longitudinal axis;
• wherein after hot filling and capping and prior to cooling the sidewall and base are configured to move interactively and in differential amounts under changing pressure differential conditions, wherein the sidewall is configured to expand longitudinally from a first unpressurized configuration to a second pressurized configuration, and the base portion is configured to move to a different extent longitudinally from a first unpressurized configuration to a second pressurized configuration, and the push up portion is configured to move from a first height from the support surface to a second height in the second pressurized configuration, said second height being less than said first height;
• and
• wherein after cooling the sidewall is configured to contract longitudinally to a third pressurized configuration, and the base is configured to move to a different extent to a third pressurized configuration, and the push up portion is configured to move to a third height from the support surface in the third pressurized configuration, said third height being different than each of said first height and said second height wherein a vacuum exists within the container.