Multifaceted product tank

摘要

A plastic product tank for containing product under pressure has a lower funnel portion including a product outlet and an upper container portion having a product-containing capacity substantially greater than the lower funnel portion. The lower funnel portion and upper container portion are in substantially gas-tight communication with each other and the upper container portion of the tank includes side walls formed by a plurality of substantially planar surfaces adjacent to each other. Each interior angle between adjacent side walls of the upper container portion is greater than ninety degrees.