| abstract |
Tanks for the storage of liquefied gases at cryogenic temperatures are disclosed. The disclosed tanks comprise two concentric shells with dished ends. The internal shell is fabricated from layers of glass fabric with organosiloxane treatment. A layer of high tensile wire fabric is incorporated as one of the integral laminae of the internal and external shells. The internal shell is covered with an insulating layer of flexible and rigid urethane foam. This foam is fabricated in contoured or flat blocks of suitable size and shape to conform to the inner shell. The blocks may be separated from the inner shell by multiple layers of metallized polyethylene terephthalate (Mylar), or other material which will reflect radiant heat. |