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Dispensed liquid volume control system

  • US 5,431,302 A
  • Filed: 12/13/1993
  • Issued: 07/11/1995
  • Est. Priority Date: 12/13/1993
  • Status: Expired due to Fees
First Claim
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1. A liquid volume control system, for the accurate dispensing of an preselected volume of liquid, comprising:

  • a pressurized source of liquid;

    a faucet means connected to the liquid source, for controlling dispensing of the liquid therethrough;

    a flowmeter means, connected between the liquid source and the faucet means, for producing signals proportional to the flow of liquid dispensed from the faucet means;

    an actuating means for opening and closing the faucet means;

    switch means for producing signals to initiate dispensing of the liquid;

    a programmable controller means being connected to the switch means and the flowmeter means for receiving the signals produced therefrom and continuously establishing from said signals first values indicative of the cumulative volume of liquid dispensed and second values substantially indicative of the average spill volume, and for comparing the first and second calculated volume values with the preselected volume, and sending a signal to the actuating means to close the faucet means when the calculated cumulative volume of liquid dispensed is equal to the preselected volume less the average spill volume, whereby the total of the cumulative volume and an actual spill volume dispensed is substantially equal to the preselected volume.

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