Beverage ingredient mixing drink dispenser

In a mixing drink dispenser having a frame, source of water, a hopper for storing a supply of beverage ingredient, means for feeding selected amounts of beverage ingredient and water together for mixing, the improvement being a mixing chamber assembly, comprising:

• a mixing chamber body with
• an upper cylindrical section with an open top for receipt of beverage ingredient and a cylindrical interior side with a central axis of symmetry and a water inlet for connection of the upper section with the source of water,
• a lower cylindrical section with a central axis of symmetry aligned with the central axis of symmetry of the upper cylindrical section connected to and in free fluid communication with the upper section, said lower section having
• an interior cylindrical surface substantially continuous with the cylindrical interior side and fixed mixing members spaced around and extending inwardly from the interior cylindrical surface, and
• a bottom with a beverage outlet located beneath the lower cylindrical section:
• and
• a propeller assembly mounted for rotation within the lower cylindrical section around an axis that is substantially aligned with the central axis of symmetry of the lower cylindrical section and of the cylindrical upper section and having at least one radially extending mixing propeller that extends outwardly to adjacent the inwardly extending fixed mixing members.

In a mixing drink dispenser having a frame, source of water, a hopper for storing a supply of beverage ingredient, means for feeding selected amounts of beverage ingredient and water together for mixing, the improvement being a mixing chamber assembly, comprising:

• a mixing chamber body with
• an upper cylindrical section with an open top and a cylindrical side with a water inlet for connection of the upper section with the source of water,
• a lower cylindrical section with a central axis of symmetry connected to and in free fluid communication with the upper section, said lower section having an interior cylindrical surface substantially continuous with the cylindrical interior side,
• a bottom with a beverage outlet located beneath the lower cylindrical section, and
• a propeller assembly mounted for rotation within the lower cylindrical section around an axis that is substantially parallel to the central axis of symmetry of the lower cylindrical section and having at least one radially extending, peripheral, mixing propeller and a central pre-mixing member aligned with the central axis of symmetry, said central pre-mixing member being located above the at least one radially extending mixing propeller and directly laterally opposite at least a portion of the water inlet.

In a mixing drink dispenser having a frame, source of water, a hopper for storing a supply of beverage ingredient, means for feeding selected amounts of beverage ingredient and water together for mixing, the improvement being a mixing chamber assembly, comprising:

• a mixing chamber body with
• an upper cylindrical section with an open top and a cylindrical side with a water inlet for connection of the upper section with the source of water,
• a lower cylindrical section with a central axis of symmetry connected to and in free fluid communication with the upper section, said lower section having an interior cylindrical surface substantially continuous with the cylindrical interior side,
• a bottom with a beverage outlet located beneath the lower cylindrical section;
• a propeller assembly mounted for rotation within the lower cylindrical section around an axis that is substantially parallel to the central axis of symmetry of the lower cylindrical section and having at least one radially extending, peripheral, mixing propeller;
• and
• a cover with a downwardly facing concave interior surface and a central ingredient inlet opening for receipt of beverage ingredient mounted to the upper section and above the mixing propeller to reflect downwardly and inwardly any upwardly directed splashes from the propeller assembly or the water inlet.