Apparatus for cooling liquid stored therein

Abstract

An apparatus for cooling liquid stored therein is described. In some embodiments, the apparatus comprises a first cylinder configured for storing a gas under pressure, a second cylinder defining at least one axial tubular space therein. The second cylinder stores the liquid to be cooled and the liquid storage compartment is separated from the axial tubular space. Further the second cylinder is covered with a lid that defines an opening for dispensing liquid. The interface between the second cylinder and the lid also includes a control valve for releasing the gas into the atmosphere. In operation, provisions are made in the first cylinder by way of an actuator and perforations for releasing the gas into the axial tubular space. The first cylinder and the second cylinder are detachably assembled prior to cooling. Various other embodiments and advantages are disclosed herein.

What is claimed is: 
     
         1 . An apparatus for cooling a liquid, the apparatus comprising:
 a first hollow cylinder for storing a gas; the cylinder comprising an outlet for releasing the stored gas, the outlet comprising a means for at least turning on or off a flow of the gas and the outlet being positioned substantially at the center of a first planar surface of the cylinder;   a second annular hollow sealed cylinder for storing the liquid to be cooled; the first cylinder and the second cylinders configured for being detachably attached to each other for releasing the gas from the first cylinder into a central axial tubular space inside the second cylinder;   wherein an end of the second cylinder distal from the interface between the first cylinder and the second cylinder comprises a window of a predetermined area for letting the gas in the central axial tubular space escape substantially at a predetermined rate into atmosphere.   
     
     
         2 . An apparatus for cooling a liquid, the apparatus comprising:
 a first hollow cylinder for storing a gas, the cylinder comprising one or more outlets for releasing the stored gas and a means for at least turning on or off a flow of the gas, the one or more outlets being positioned substantially at the periphery of a first planar surface of the cylinder;   a second annular hollow cylinder for storing the liquid to be cooled, wherein the second annular hollow cylinder is a double walled cylinder, a space between the two walls forming an axial tubular space;   the first cylinder and the second cylinder are configured for being detachably attached to each other for release the gas from the first cylinder into the axial tubular space in the second cylinder;   wherein an end of the second cylinder distal from the interface between the first cylinder and the second cylinder comprises one or more perforations for letting the gas in the axial tubular space escape into the atmosphere.   
     
     
         3 . The apparatus of  claim 1 , wherein the gas is a refrigerant. 
     
     
         4 . The apparatus of  claim 1 , wherein the end of the second cylinder distal from the interface between the first cylinder and the second cylinder is covered by a lid such that an opening is defined in the lid for dispensing the stored liquid. 
     
     
         5 . The apparatus of  claim 1 , wherein the second annular hollow sealed cylinder is created by drawing pressed sheet metal. 
     
     
         6 . The apparatus of  claim 1 , wherein threads are cut into the central axial tubular space at the interface for detachable attaching to the first cylinder. 
     
     
         7 . The apparatus of  claim 2 , wherein threads are cut into the axial tubular space at the interface for detachably attaching to the periphery of the first cylinder. 
     
     
         8 . The apparatus of  claim 1 , wherein the central axial tubular space is tapering at the end distal from the interface between the first cylinder and second cylinder. 
     
     
         9 . A method of manufacturing an apparatus for cooling liquid, the method comprising:
 providing a first hollow cylinder for storing a gas, the cylinder comprising an outlet for releasing the stored gas, the outlet comprising a means for at least turning on or off a flow of the gas and the outlet being positioned substantially at the center of a first planar surface of the cylinder;   filling a predetermined amount of the gas in the first hollow cylinder; providing a second annular hollow sealed cylinder for storing the liquid to be cooled;   assembling the first cylinder and the second cylinder at the interface, wherein the first cylinder and the second cylinder comprise means for detachable attachment;   filling a predetermined amount of liquid to be cooled in to the second annular hollow cylinder, and   sealing an end of the second cylinder distal from the interface between the first cylinder and the second cylinder, with a lid, wherein the lid comprises a window, such that, in use, the gas escapes into the atmosphere at substantially a predetermined rate.   
     
     
         10 . The method of  claim 9 , wherein the assembling comprises performing one of twisting, rotating, snap-fitting the first cylinder and the second cylinder manually. 
     
     
         11 . The method of  claim 9 , wherein the assembling comprises performing one of twisting, rotating, snap-fitting the first cylinder and the second cylinder by electromechanical means.