Patent ID: 8006866
Filing Date: 2011-08-30
Classification: B67D

Abstract:
1. A beverage dispenser for regulating a compositional ratio of a mixture therein, said dispenser comprising: a metering device generating an output signal in relation to a flow rate of a diluent; a control in electrical communication with said metering device for receiving said output signal; a valveless piston pump configured to pump a concentrate into contact with said diluent to form said mixture; a motor configured to actuate said valveless piston pump; an encoder configured to regulate a rotary speed of said motor, said encoder in electrical communication with said control, a sensor that obtains information on a desired compositional ratio from a package of concentrate and provides the information on the desired compositional ratio to the control; a refrigeration system having a plate heat exchanger for refrigerating said diluent; a mixing nozzle having a body with an inlet section and an outlet section and defining at least one passageway from said inlet section to said outlet section; and a blocking surface situated near said inlet section of said body; whereby said control is configured to compute a desired rotary speed for said motor based on a desired compositional ratio between said concentrate and said diluent in said mixture and on said output signal from said metering device, said control also configured to send a command based on said desired rotary speed to said encoder for regulating said motor's rotary speed.