Patent ID: 8282876

Claim:
A method for extrusion blow molding a polyethylene terephthalate container, the method comprising: providing a mold set configured to form a container having a base for supporting the container upon a surface, the base including a support portion and a substantially flat elevated portion having a center and a major diameter; a body portion extending from the base; and an open neck portion extending from the body portion; the mold set including a plurality of pinch-offs, each pinch-off with a raised pinch, wherein the raised pinches are provided at different positions around the mold; providing an extruder including a die head, the die head including a head tooling coating; extruding a hollow tube comprised of polyethylene terephthalate; closing the mold set about the hollow tube; and injecting a gas into the hollow tube to form the container; wherein the center of the elevated portion is disposed at an elevated distance above said surface, the elevated distance being less than about 0.05 times the major diameter.