Beverage supply apparatus for dispensing machine

An apparatus for automatically supplying a substantially mixed homogenous beverage to a beverage dispenser having a bowl for storing a quantity of mixed beverage having an upper lip, the supply apparatus comprising:

• a housing having a mounting flange for mounting the supply apparatus to the upper lip of the bowl;
• a hopper within the housing for storing a mass of dry beverage powder mix having an upper opening for admitting powder mix into the hopper, a hopper outlet for dispensing powder mix from the hopper and a hopper auger for selectively feeding a metered quantity of the powder mix from the hopper through the outlet;
• a whipping chamber disposed between and in communication with the hopper outlet and the bowl, the whipping chamber having a mechanical impeller contained therein;
• a water supply line in selective communication with the whipping chamber via a water control valve for supplying a metered quantity of water to the whipping chamber;
• a probe extending into the bowl for measuring the quantity of mixed beverage in the bowl;
• a selectable auto/manual switch having a first position for selectively allowing the control circuit to control operation of the hopper auger to add powder to the whipping chamber, the water supply line to add water to the whipping chamber and the whipping chamber impeller to mix the powder mix and water automatically upon the probe sensing a predetermined level of mixed beverage in the bowl and a second position for manual operation only;
• and
• a control circuit in electrical communication with the probe that, upon sensing a quantity of mixed beverage in the bowl below a predetermined quantity, automatically activates the hopper auger, opens the water control valve and activates the mechanical impeller in the whipping chamber to substantially completely mix the powder mix and water entering the whipping chamber into a homogenous beverage mixture having a predetermined consistency prior to passage of the beverage mixture to the bowl until the quantity of mixed beverage in the bowl rises to a predetermined quantity, the control circuit further comprising a rinse switch that, when actuated with the auto/manual switch in the second position, opens a second water supply line to add fresh water only to the bowl until the bowl is substantially filled.

A method for automatically supplying a substantially mixed homogenous beverage to a beverage dispenser having a bowl for storing a quantity of mixed beverage and having an upper lip, the method comprising the steps of:

• placing a mass of dry beverage powder mix within a hopper located within a housing mounted on the upper lip of the bowl, the hopper having an upper opening for admitting powder mix into the hopper, an outlet for dispensing powder mix from the hopper and an auger for selectively feeding a metered quantity of the powder mix from the hopper through the outlet;
• monitoring the quantity of mixed beverage in the bowl;
• automatically activating the hopper auger when the quantity of mixed beverage in the bowl falls below a predetermined quantity to convey powder beverage mix into a whipping chamber having a mechanical impeller and a second water supply in selective communication with the whipping chamber via a water control valve for supplying a metered quantity of water to the whipping chamber;
• opening the water control valve and activating the mechanical impeller in the whipping chamber to substantially completely mix the powder beverage mix and water entering the whipping chamber into a homogenous beverage mixture having a predetermined consistency prior to passage of the beverage mixture to the bowl until the quantity of mixed beverage in the bowl rises to a predetermined quantity;
• further including the steps of selecting a manual mode of operation for the supply apparatus via an auto/manual switch having a first position for automatic operation and a second position for manual operation;
• draining the bowl of any beverage contained therein;
• rinsing the bowl by actuating a rinse switch that, when actuated with the auto/manual switch in the second position, opens a water supply line to add fresh water to the bowl until the bowl is substantially filled;
• draining the bowl of any rinse water contained therein;
• rinsing the bowl again by actuating the rinse switch to add fresh water to the bowl until the bowl is substantially filled;
• substantially simultaneously actuating a movable plunger proximate a magazine of sanitizing tablets to move a sanitizing tablet into a passage from the magazine to the bowl, wherein the sanitizing tablet is added to the bowl during the addition of fresh water only to the bowl;
• rinsing the bowl again by actuating the rinse switch to add fresh water to the bowl until the bowl is substantially filled;
• and
• draining the bowl of any rinse water contained therein.