Patent ID: 7648049

Claim:
In a mixing drink dispenser having a source of water for mixing with a beverage ingredient to make a drink, the improvement being a mixing assembly, comprising: a mixing chamber assembly having a mixing chamber with an upper cylindrical section for receipt of beverage ingredient and water and a cylindrical lower section vertically aligned directly beneath the upper section and joined to and in open fluid communication with the upper section, the upper cylindrical section having a fully open top for receipt of beverage ingredient, a water inlet for receipt of water from the source and a fully open bottom, the cylindrical lower section having the fully open top aligned and coextensive with the fully open bottom of the upper section, and a bottom with a non-closable beverage outlet in the bottom for free, unobstructed passage of freshly mixed beverage out of the mixing chamber to a beverage container; and a mixing propeller assembly with a plurality of mixing propellers mounted for rotation about a vertical axis centrally aligned directly beneath the upper section and located within the lower section intermediate the upper section and the non-closable beverage outlet, said mixing propellers mixing together the beverage ingredient and water received at the upper section while falling through the cylindrical lower section but before falling to the bottom of the lower section and the non-closable beverage outlet and passing out of the mixing chamber, said bottom of the lower section being located beneath the propellers.