Thermally insulated vessel, especially for liquefied gases

摘要

A thermally insulated storage or transport vessel for low-boiling point liquefied gases comprises a rigid self-supporting inner receptacle or tank and a nonself-supporting outer container. The outer container is formed from a pair of longitudinally spaced opposing rigid end shells interconnected by an intermediate shell provided with stiffening formations extending peripherally of the intermediate shell. The intermediate shell is longitudinally expansible or contractile and may be formed with angular-section on curved-section corrugations.