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Gear pump and foam dispenser

  • US 20080277421A1
  • Filed: 05/08/2007
  • Published: 11/13/2008
  • Est. Priority Date: 05/08/2007
  • Status: Abandoned Application
First Claim
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1. A gear pump for mixing first and second components comprising:

  • an inlet port;

    a premix chamber having a first end communicating with said inlet port, and a second end communicating with a source of the first component, thus providing a fluid path to carry the first component through the inlet port upon operation of the gear pump; and

    a second component valve regulating fluid communication between a source of the second component and said premix chamber, wherein, upon operation of the gear pump, the first component is drawn from said source of the first component into said premix chamber, the second component is drawn from the source of the second component, through said second component valve, and into said premix chamber, and a premix of the first and second components is fed through said inlet port.

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