US2013098069A1PendingUtilityA1

Self-Cooling Beverage Can

42
Assignee: COLLINS PATRICKPriority: Oct 21, 2011Filed: Oct 21, 2011Published: Apr 25, 2013
Est. expiryOct 21, 2031(~5.3 yrs left)· nominal 20-yr term from priority
Inventors:Patrick Gordon Collins
F25D 5/02
42
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Claims

Abstract

A self-cooling beverage container comprising a space between outer and inner walls, the space containing a liquid that is mixed with a chemical contained within a compartment within the base of the beverage container. The compartment within the base of the beverage container has a rupture portion located within the space between the outer and inner walls, and pressure on the base of the beverage container causes the rupture portion to open, allowing mixing of the chemical and the liquid. The chemical and the liquid react in an endothermic reaction, cooling the contents of the beverage container.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . a self-cooling beverage container comprising:
 a can having an exterior cylindrical wall with a top and bottom, the top having opening means into a first compartment;   an interior cylindrical wall extending   a first compartment defined by the wall, the top and the bottom, containing a beverage;   a second compartment located between the first compartment and the exterior wall of the beverage container, the second compartment filled with water;   the beverage container further having an opening located in the base of the exterior cylindrical wall;   an insertable portion that is positioned within the opening located in the base of the exterior cylindrical wall, the insertable portion comprising a base, a rupture portion distal to the base, the rupture portion located within the second compartment, and the insertable portion having an interior compartment containing a chemical.   
     
     
         2 . The self-cooling beverage container of  claim 1 , wherein the contents of the interior compartment of the insertable portion mixable with the contents of the second compartment when exterior pressure is applied to the base of the insertable portion in sufficient manner to rupture the rupture portion of the insertable portion. 
     
     
         3 . The self cooling beverage container of  claim 1 , wherein the refrigerant fluid is an ammonium based chemical. 
     
     
         4 . The self cooling beverage container of  claim 3  wherein the ammonium based chemical is a solid. 
     
     
         5 . The self cooling beverage container of  claim 3  wherein the ammonium based chemical is a liquid.

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