초록 ▼

A beverage dispenser to provide desired ratios of mixed concentrate and diluent more accurately comprises a valve housing (10) having an inlet (12) and an outlet (44) for a concentrate and an inlet (14) and an outlet (30) for a diluent, a reciprocating piston (24) in a central passageway (22) betwee

A beverage dispenser to provide desired ratios of mixed concentrate and diluent more accurately comprises a valve housing (10) having an inlet (12) and an outlet (44) for a concentrate and an inlet (14) and an outlet (30) for a diluent, a reciprocating piston (24) in a central passageway (22) between the inlets and outlets, the piston (24) being movable reciprocably between a first position in which flow to both outlets is blocked and a second position in which both outlets are open to flow, a flow rate sensor (20) for the concentrate and a flow rate sensor (40) for the diluent, the sensors being connected to a controller (50) whereby the diluent flow rate is adjusted by movement of the piston (24) according to the concentrate flow rate to achieve a predetermined ratio of concentrate to diluent for the dispensed beverage.

대표청구항 ▼

1. A beverage dispenser comprising a valve housing having an inlet and an outlet for a concentrate and an inlet and an outlet for a diluent, a reciprocal piston, said piston being movable in a central passageway between said inlets and outlets, the piston being movable reciprocally by a single linea

1. A beverage dispenser comprising a valve housing having an inlet and an outlet for a concentrate and an inlet and an outlet for a diluent, a reciprocal piston, said piston being movable in a central passageway between said inlets and outlets, the piston being movable reciprocally by a single linear drive means to a plurality of positions between and including a first closed position in which flow to both outlets is blocked, and a second fully open position in which both outlets are open to flow directly into a mixing and dispense nozzle, a first flow rate sensor for the concentrate and a second flow rate sensor for the diluent, the first and second sensors being connected to a controller and the controller connected to and controlling the operation of the linear drive means whereby the diluent flow rate is adjusted by movement of the piston in response to input from the first and second flow rate sensors to achieve a predetermined ratio of concentrate to diluent for the dispensed beverage.