RETORTABLE PLASTIC CONTAINERS

摘要

A plastic container includes a sidewall defining a bottom portion, a main body portion and an upper rim. The main body portion of the sidewall has at least one groove defined therein that has a circumferential component. Reinforcement structure is provided on the portion of the sidewall that defines the groove for limiting vertical expansion and contraction of the main body portion in response to force that is applied to the sidewall.