Patent ID: 8850846

Claim:
A self cooling and self dispensing beverage keg comprising: (A) a beverage chamber including a plurality of walls including a sidewall and upper and lower walls enclosing said chamber; (B) a heat exchange unit coupled to said upper wall and suspended within said beverage chamber but not in contact with said plurality of walls; (C) said heat exchange unit comprising: (1) a metal housing having a top and a bottom; (2) a plurality of discrete carbon sections each defining an opening therethrough disposed within said housing; (3) a metal tube received within each of said openings in said carbon sections and sealed to said top and bottom of said housing; (D) means for injecting carbon dioxide gas under pressure into said housing, said carbon dioxide gas being adsorbed by said carbon; (E) means for releasing said carbon dioxide gas under pressure from said housing, which cools beverage contained within said chamber; and (F) means for dispensing beverage from said chamber.