초록 ▼

The invention consists of disposable temperature changing devices which can be stored for unlimited periods without losing their temperature changing potential. Water boiling in an air-evacuated chamber serves as the working liquid. A dessicant in a separate container communicates with the vapor pha

The invention consists of disposable temperature changing devices which can be stored for unlimited periods without losing their temperature changing potential. Water boiling in an air-evacuated chamber serves as the working liquid. A dessicant in a separate container communicates with the vapor phase of the water, and removes the vapor generated by the boiling water. Unlimited storage of the temperature changing potential of the invention is obtained by the closing of the communication between the containers.

대표청구항 ▼

A disposable cooler consisting of a double-wall container, water in an interspace between said walls, at least a partial vacuum in said interspace to lower the boiling point of said water. a second container, a dessicant in said container, a communication between the containers to allow a sorption o

A disposable cooler consisting of a double-wall container, water in an interspace between said walls, at least a partial vacuum in said interspace to lower the boiling point of said water. a second container, a dessicant in said container, a communication between the containers to allow a sorption of vapors generated by the evaporation of said water, and means to reversibly close said communication to allow an unlimited storage of said disposable cooler.