초록 ▼

A computerized beverage dispensing system in a first embodiment includes a fitting connected to a tap having a thermoelectric heat pump cooled nozzle and an electrically controlled valve, hereinafter valve. A computerized controller is connected to the fitting and tap. The fitting has a constricted

A computerized beverage dispensing system in a first embodiment includes a fitting connected to a tap having a thermoelectric heat pump cooled nozzle and an electrically controlled valve, hereinafter valve. A computerized controller is connected to the fitting and tap. The fitting has a constricted passage through which the beverage flows under pressure and pressure and temperature transducers for measuring the pressure difference across the constricted passage and the temperature thereof. The computerized controller includes a pressure to time look up table used for timing valve operation. If abnormal pressure or temperature occurs the valve is cut off unless an override circuit is activated. A front/back display shows messages programmed into the computerized controller. A modified fitting has a Pitot tube measuring the velocity flow for the pressure transducer for use with a velocity/time look up table for timing valve on time. In a second embodiment a counter initially counts the time to dispense a volume of the beverage; adjustment for volume changes is made thereafter by incrementing the time up or down as necessary to dispense the initial volume of the beverage. A third embodiment uses the count and adjust technique for beverage dispensing volume control, together with system entry being controlled by a code entry matching a stored code. After entry a normal/program (purge) key switch at normal controls the normal system operation and at program/purge secures the system from all but the key carrier for programming and/or purging.

대표청구항 ▼

A computerized dispensing system comprising: a sensor fitting means for passing the flow of pressurized beverage from a source thereof, said sensor fitting means including a velocity measuring means for measuring the velocity of the flowing beverage for producing signals indicative of changes in the

A computerized dispensing system comprising: a sensor fitting means for passing the flow of pressurized beverage from a source thereof, said sensor fitting means including a velocity measuring means for measuring the velocity of the flowing beverage for producing signals indicative of changes in the velocity of the flowing fluid; a tap means connected to the sensor fitting means for dispensing the beverage flowing from the sensor fitting means, said tap means including an electrically operated valve means for controlling the flow of the beverage from the tap means; wherein the sensor fitting means includes first and second flared ends, said first and second flared ends for connection to a source of beverage and to the tap means, respectively, a constricted passage between the first and second flared ends, a transducer means mounted between said first and second flared ends, a passage connecting the transducer means to the second flared end, and the velocity measuring means mounted in the passage for communication with the passage and the constricted passage for measuring the velocity of beverage flowing through the constricted passage and communicating velocity indicating signals to the transducer means for generating electrical signals indicative of the measured velocity; and a computerized controller including means responsive to the changes in velocity indicating signals of the sensor fitting means for determining substantially continuously the time required for dispensing a substantially exact quantity of the beverage, and means for generating valve means actuating signals during the valve on time, said electrically operated valve means responsive to the valve means actuating signals for dispensing the substantially exact quantity of the beverage.