Accession Number : ADD002120

Title :   Inflatable Ice Igloo.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Stachiw,Jerry D

Report Date : 07 Oct 1975

Pagination or Media Count : 7

Abstract : The patent concerns a rapidly erectable shelter to protect men and equipment. Three flexible layers are arranged to define a pair of hemispherical shell-shaped chambers. Pressurized gas is vented to the inner chamber, which serves as a molding form for water being pumped into the outer chamber. The freezing of the water creates a rigid shell of ice and the inner gas filled chamber insulates the interior and prevents melted droplets of the ice shell from dripping into the interior. In warmer climates or under water, self-polymerizing thermoset resins or a concrete slurry is substituted for the pumped water with identical results. Irrespective which material is chosen, the shelter is quickly erected by unskilled labor and provides an air insulation inside the rigid shell.

Descriptors :   *Patents, *Shelters, *Polar regions, Thermal insulation, Flexible structures, Shells(Structural forms), Pressurization, Gases, Ice, Layers, Protection, Thermoplastic resins, Polymerization, Concrete, Slurries, Assembly

Subject Categories : Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE