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Chemical mixing and dispensing system

  • US 4,976,137 A
  • Filed: 01/06/1989
  • Issued: 12/11/1990
  • Est. Priority Date: 01/06/1989
  • Status: Expired due to Term
First Claim
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1. An apparatus for mixing and dispensing chemical solutions, comprising:

  • (a) a manifold having a main passage, a plurality of chemical inlet ports connected to said passage, an outlet port connected to said passage, and a water inlet port connected to a source of pressurized water;

    (b) a plurality of pumps which are selectively controllable, one of said pumps being connected to each of said chemical inlet ports so as to pump a chemical solution therethrough;

    (c) selectively controllable valve means associated with each said chemical inlet ports;

    (d) a dispensing outlet connected to said outlet port for dispensing said chemical solutions and water into a container; and

    (e) quality control means for determining whether the proper chemical solutions have been dispensed, wherein said quality control means comprises;

    (i) means for repeatedly measuring the conductivity of the chemical solutions flowing through said main passage of said manifold to produce a conductivity output; and

    (ii) means for comparing said conductivity output with a standard conductivity output.

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