Preform for use in blow molding plastic bottles.

摘要

A preform (22) for use in blow molding plastic bottles for carbonated beverages and the like, wherein the preform (22) is made materially shorter than prior art preforms (10) with a double wall thickness configuration wherein the body portion (30) of the preform (22) flares in wall thickness from the shoulder forming portion (26) towards the rounded end portion (28). The body portion of a resultant bottle may be thinner than before possible while at the same time it is of sufficient thickness to resist internal pressures.