Patent ID: 6474496
Filing Date: 2002-11-05
Classification: B65D

Abstract:
A containment tank assembly comprising:an outer vessel having a continuous base wall and upright containment wall presenting an open upper margin; to an inner tank concentrically received in said outer vessel in nesting relationship, said inner tank having a bottom wall, an upright sidewall and a roof defining therein an enclosed storage chamber, said inner tank sidewall and said outer vessel containment wall being configured to present a plurality of circumferentially spaced apart engagement areas in which the sidewall and the containment wall are mutually relatively spaced, each of said engagement areas extending vertically for a distance along the inner tank sidewall to maintain the inner tank centered within the outer vessel; and a discharge outlet fluidically communicating with said chamber proximate the bottom wall and extending through said containment area and said containment wall for enabling discharge of liquid from said chamber therethrough.