Canteen Cooling Apparatus and Method

Abstract

A canteen cooling apparatus of the present disclosure has a cavity for holding a canteen. The cavity has a sleeve with a first layer and a second layer. The apparatus further has an inlet coupled to the second layer that receives a medium from a medium injection apparatus and an envelope created between the first and second layers that receives the medium and delivers the medium to the canteen in the cavity.

1 . A canteen temperature adjusting apparatus, comprising:
 a cavity for holding a canteen, the cavity comprised of a sleeve having a first layer and a second layer;   an inlet coupled to the second layer, the inlet for receiving a medium from a medium injection apparatus; and   an envelope created between the first and second layers for receiving the medium and delivering the medium to the canteen in the cavity.   
   
   
       2 . The canteen temperature adjusting apparatus, wherein the medium cools the canteen in the cavity. 
   
   
       3 . The canteen cooling apparatus of  claim 1 , wherein the first layer comprises a plurality of openings for delivering the medium to the cavity. 
   
   
       4 . The device of  claim 1 , wherein the air inlet is a hollow cylindrical tube. 
   
   
       5 . The device of  claim 4 , wherein the medium injection apparatus comprises a straw that couples to the tube for delivering the medium to the cavity. 
   
   
       6 . The device of  claim 1 , wherein at least one of the layers is comprised of polyvinyl chloride. 
   
   
       7 . The device of  claim 1 , further comprising a third layer made of a durable canvas. 
   
   
       8 . The device of  claim 1 , wherein the medium injection apparatus comprises a spray can. 
   
   
       9 . A method, comprising the steps of:
 detachably coupling a medium injection apparatus to a sleeve forming a cavity, the sleeve for receiving a canteen, the medium injection apparatus having a medium that is compressed at a pressure greater than atmospheric pressure; and   injecting the medium from the medium injection apparatus to the cavity thereby adjusting the temperature of a liquid within the canteen that is inserted in the sleeve.   
   
   
       10 . The method of  claim 9 , wherein the medium injection apparatus is a spray can. 
   
   
       11 . The method of  claim 9 , wherein the injecting step further comprises cooling the liquid. 
   
   
       12 . The method of  claim 9 , wherein the injecting step comprises transferring the medium from an envelope created by a first and second layer of the sleeve through a plurality of openings in the first layer. 
   
   
       13 . The method of  claim 9 , wherein the detachably coupling step comprises inserting a straw into an air inlet formed in the sleeve. 
   
   
       14 . The method of  claim 13 , wherein the detachably coupling step further comprises coupling the straw to a can of pressurized medium. 
   
   
       15 . The method of  claim 14 , wherein the medium is air. 
   
   
       16 . The method of  claim 14 , wherein the medium comprises a refrigerant. 
   
   
       17 . The method of  claim 9 , wherein the sleeve is comprised of a first and second layer of polyvinyl chloride. 
   
   
       18 . An apparatus, comprising:
 a sleeve for receiving a canteen, the sleeve forming a cavity and having a first layer an a second layer; and   means positioned between the first layer and the second layer for transferring a medium to the cavity thereby altering a temperature of the cavity when a medium injection apparatus is coupled to the means.