Picnic Cooler with Off/On Spigot and two Sealing Rings with Apertures

Abstract

A picnic cooler that includes a food compartment, a gas tank compartment, an off/on electric spigot, two sealing rings with fixed-size apertures, and two cooling apparatuses. The cooling apparatus includes a twisting piping system and an upper metallic plate that serves as the bottom of the food compartment.

What is claimed is: 
     
         1 . A picnic cooler, comprising: a food compartment, a gas tank compartment, an off/on electric spigot, a first sealing ring with a first fixed-size aperture, a first cooling apparatus, a second sealing ring with a second fixed-size aperture, a second cooling apparatus, an electric power source, and a command and control system;
 wherein the gas tank compartment is designed to receive a gas tank so that the opening of said gas tank is facing downward and connected to the off/on electric spigot;   wherein the cooling apparatus includes a twisting piping system and an upper metallic plate; wherein said upper metallic plate serves also as the bottom of the food compartment;   wherein a first end of the twisting piping system is connected to the first sealing ring and then to the off/on electric spigot and a second end of the twisting piping system is connected to the second sealing ring and then to the second cooling apparatus;   wherein the command and control system includes a controller, and a temperature sensor that is designed to measures the temperature inside the food compartment; wherein the command and control system is designed to control the temperature of the food compartment by transmitting a command to open or close the off/on electric spigot;   
       whereby when gas flows from the gas tank into the piping twisted system through the first fixed-size aperture of the first sealing ring the pressure of the gas in the first fixed-size aperture increases due to the narrowing of the cut-off area, and then when exit from the first fixed-size aperture the gas rapidly expands in the first cooling apparatus, its pressure is decreases and it becomes colder whereby cooling the upper metallic plate that in turns cooling the food compartment; whereby when the gas flows from the first cooling apparatus into the second cooling apparatus through the second fixed-size aperture of the second sealing ring the pressure of the gas in the second fixed-size aperture increases due to the narrowing of the cut-off area, and then when exit from the second fixed-size aperture the gas rapidly expands in the second cooling apparatus, its pressure is decreases and it becomes colder whereby cooling the food compartment.