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Personal, closed-cycle cooling and protective apparatus and thermal battery therefor

United States Patent

July 20, 2004
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A closed-cycle apparatus for cooling a living body includes a heat pickup body or garment which permits evaporation of an evaporating fluid, transmission of the vapor to a condenser, and return of the condensate to the heat pickup body. A thermal battery cooling source is provided for removing heat from the condenser. The apparatus requires no external power and provides a cooling system for soldiers, race car drivers, police officers, firefighters, bomb squad technicians, and other personnel who may utilize protective clothing to work in hostile environments. An additional shield layer may simultaneously provide protection from discomfort, illness or injury due to harmful atmospheres, projectiles, edged weapons, impacts, explosions, heat, poisons, microbes, corrosive agents, or radiation, while simultaneously removing body heat from the wearer.
Klett; James W. (Knoxville, TN), Klett; Lynn B. (Knoxville, TN)
UT-Battelle, LLC (Oak Ridge, TN)
10/ 359,892
February 6, 2003
This invention was made with Government support under Contract No. DE-AC05-00OR22725 awarded by the United States Department of Energy. The Government has certain rights in the invention.