Patent ID: 8168048

Claim:
A device for generating and dispensing carbon dioxide comprising: (a) a container having a floor with an upstanding outer wall around said floor extending upward to a top of said upstanding outer wall; (b) an inner cylindrical wall inside said container extending upward from said floor to a point below the top of said outer upstanding wall defining a first space between said inner cylindrical wall and said outer upstanding wall adapted to receive one or more solid oxalic-acid members and further defining a second space within said inner cylindrical wall adapted to receive an external carbon-dioxide generator; (c) a lid removably attachable to the top of said upstanding outer wall, said lid having a top surface and a bottom surface with a shaft extending downward from said bottom surface of said lid to a point above said floor wherein said shaft is adapted to nest into said second space, said shaft having a hollow interior shaft space with a diameter-G; (d) a plurality of apertures in said inner cylindrical wall adjacent to the floor thereby defining a passageway between said first space and said second space and said shaft space; (e) a discharge vent on said lid in communication with said second space and said shaft space; whereby as carbon dioxide is generated within said device the carbon dioxide passes through said shaft space and out said discharge vent to an external receiving member; and (f) a stack of one or more toroidally-shaped discs of solid oxalic-acid in said first space.