Dispensing – Automatic control – By weight – volume or pressure of a second dispensed material
Patent
1989-03-31
1991-07-23
Shaver, Kevin P.
Dispensing
Automatic control
By weight, volume or pressure of a second dispensed material
7386102, 7386154, 222 63, 222 71, 2221294, B67D 556
Patent
active
050336444
ABSTRACT:
The flow rate of fluid components, typically water and syrup, is sensed by a flowmeter that is substantially insensitive to variations in fluid pressure and/or viscosity. A feedback circuit which may be either analog or digital permits the regulation of fluid flows to be in a precisely prescribed relative proportion. This proportion may be changed by varying the amplification gain of the feedback circuit in the analog configurations, or by programming a new ratio quantity in the digital configuration of the control circuit. The digital control circuit integrates the total fluid flow, and maintains historical records of the total fluid volume and portions dispensed. The dispensed volume of any particular portion may be predetermined by manually demarking the time interval over which such volume is flowed. The historical records of dispensing activity are securely stored and may be inspected in order to compare such activity to receipts derived from sale of the dispensed beverage only by an authorized interrogation device.
REFERENCES:
patent: 3642171 (1972-02-01), Ernst
patent: 3948419 (1976-04-01), Polster
patent: 4886190 (1989-12-01), Kirschner et al.
Fuess William C.
Shaver Kevin P.
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