Apparatus to control fluid flow rates
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United States of America Patent
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May 1, 2012
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N/A
app pub date -
Nov 15, 2005
filing date -
Jun 1, 2000
priority date (Note) -
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Abstract
Apparatus for mixing two fluids has separate supply lines for delivering the fluids to a mixing head. Flow rate of fluid in one supply line is monitored by arranging a pressure transducer to measure a pressure drop across an orifice in an orifice plate arranged in the supply line and a controller is responsive to the detected flow rate to control flow rate of fluid in the other supply line to achieve a desired flow ratio of both fluids at the mixing head for producing a mixed fluid having the correct proportions of both fluids. The fluids may be a concentrate syrup and a plain or carbonated water to produce a beverage.
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