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METHOD AND APPARATUS FOR DISPENSING FLUID COMPOSITIONS

  • US 20100185322A1
  • Filed: 01/19/2009
  • Published: 07/22/2010
  • Est. Priority Date: 01/19/2009
  • Status: Active Grant
First Claim
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1. A fluid dispensing system comprising:

  • a first and second fluid reservoir configured to contain a first and second constituent, respectively;

    a first and second pump, said first and second pump in communication with said first and second fluid reservoir, respectively;

    a drive motor, said first and second pump commonly driven by said drive motor;

    a control system, said control system coupled to said drive motor;

    a first and second valve assembly, said first and second valve assembly in communication with said first and second pump, respectively, each of said first and second valve assemblies including a valve chamber in communication with an inlet port via an inlet channel, an outlet port via an outlet channel, and a recirculation port via a recirculation channel;

    a first and second moving valve member disposed in said first and second valve chamber, respectively, and responsive to said control system for directing a constituent between said inlet channel and one of said outlet and recirculation channels, wherein said control system selectively actuates said first and second moving valve members for dispensing a composition containing desired proportions of said first and second constituents.

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