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Multiple wash zone dishwasher

  • US 8,187,390 B2
  • Filed: 04/28/2011
  • Issued: 05/29/2012
  • Est. Priority Date: 06/17/2003
  • Status: Expired due to Term
First Claim
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1. A dishwasher comprising:

  • a tub defining a wash chamber;

    a dish rack provided within the wash chamber to receive dishes for washing;

    a spray assembly provided within the wash chamber and emitting wash liquid to provide a first spray within the wash chamber that forms a first wash zone in the wash chamber;

    a pump assembly fluidly coupled to the tub for recirculating wash liquid from the tub;

    a supply tube fluidly coupling the pump assembly to the spray assembly such that recirculated wash liquid is provided to the spray assembly; and

    a spray manifold provided on the supply tube separate from the dish rack and having multiple apertures emitting liquid into the wash chamber to form a second wash zone in the wash chamber that extends into the dish rack;

    wherein the spray manifold comprises multiple nozzles, with each nozzle having at least one aperture.

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