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Dishwasher

  • US 7,540,293 B2
  • Filed: 02/14/2005
  • Issued: 06/02/2009
  • Est. Priority Date: 09/14/2004
  • Status: Expired due to Fees
First Claim
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1. A dishwasher comprising:

  • a sump for receiving wash water for washing contaminated dishes;

    a main motor for circulating wash water in the sump;

    a washing pump connected with the main motor and pumping the wash water;

    a main channel and a sampling channel formed in a drain direction of the washing pump; and

    a contamination sensor mounted at a channel extension part located at the sampling channel and measuring contamination level of the wash water, wherein the contamination sensor protrudes from a surface of the sump;

    wherein the sampling channel is formed at an upper housing mounted at an upper part of the sump and has a width smaller than that of the main channel; and

    wherein the contamination sensor comprises;

    a measuring element for measuring contamination of the wash water;

    a measuring element housing surrounding the measuring element; and

    a housing coupling part formed at a side of the measuring element housing.

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