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SYSTEM FOR THE PROPORTIONAL EVALUATION OF QUANTITATIVE FLOW OF FLUIDS

  • US 3,834,230 A
  • Filed: 08/31/1972
  • Issued: 09/10/1974
  • Est. Priority Date: 08/31/1972
  • Status: Expired due to Term
First Claim
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1. In a system for the proportional evaluation of quantitative fluid flow between a supply of fluid and a point of usage through a fluid supply system including at least one supply line;

  • the improvement comprising a fluid flow meter for connection within said supply line;

    bypass line means for fluid connection to said supply line upstream and downstream of said meter for bypassing fluid flow around the meter and allowing fluid to flow directly to the point of usage without passing through the meter;

    fluid flow regulating means connected within said bypass line means for controlling the flow of fluid within said bypass line means; and

    fluid pressure sensing means for connection to said fluid supply system upstream from said meter and controlling operation of said fluid flow regulating means in response only to fluid pressure upstream of said meter for increasing the proportional fluid flow through said bypass line with increasing upstream fluid pressure and decreasing the proportional fluid flow through said bypass line means with decreasing upstream fluid pressure.

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