Picnic Cooler with Internal Compartment for Cooling with Liquid Gas

Abstract

A picnic cooler that include a food compartment, a liquid-gas tank with an adapter, an electric spigot and a cooling apparatus. The food compartment includes a release aperture with unidirectional valve that is designed to release outside the gas. The cooling apparatus includes a twisting piping system and an upper metallic plate that serves also as the inner bottom of the food compartment and as a cooling plate. A second end of the twisting piping system includes a secondary aperture that is positioned inside the food compartment and that causes additional pressure drop and by that assists to cool the interior of the food compartment.

What is claimed is: 
     
         1 . A picnic cooler, comprising: a food compartment, a liquid-gas tank compartment, a liquid-gas tank adapter, an electric spigot, a cooling apparatus, an electric power source, and a command and control system;
 wherein the liquid-gas tank compartment is designed to receive a liquid-gas tank; wherein the food compartment includes a release aperture with an unidirectional valve that is designed to release air and gas outside from the interior of the food compartment;   wherein the cooling apparatus includes a twisting piping system and an upper metallic plate; wherein said upper metallic plate serves also as the inner bottom of the food compartment; wherein a first end of the twisting piping system is connected to the liquid-gas tank adapter and a second end of the twisting piping system includes a secondary aperture that is positioned inside the food compartment;   wherein the liquid-gas tank is designed to be connected to the liquid-gas tank adapter; wherein the electric spigot is designed to open and close the liquid-gas tank and to be controlled by the command and control system;   wherein the command and control system includes a controller, a temperature sensor that measures the temperature inside the food compartment, and a display panel; wherein the command and control system is designed to control the temperature of the food compartment by transmitting a command to open and close the electric spigot for certain periods of times;   whereby when the liquid-gas flow from the liquid-gas tank into the piping twisted system the liquid-gas turns to a gaseous state and the piping twisted system becomes cold due to a pressure drop of the liquid-gas whereby cooling the upper metallic plate that in turns cooling the food compartment; whereby the flow of the liquid-gas in the gaseous state from the piping twisted system into the interior of the food compartment through the secondary aperture causes additional pressure drop whereby said liquid-gas in the gaseous state become colder and assist to cool the interior of the food compartment.