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Liquid detergent dispensing system for a washing machine

  • US 7,980,102 B2
  • Filed: 03/19/2008
  • Issued: 07/19/2011
  • Est. Priority Date: 03/20/2007
  • Status: Active Grant
First Claim
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1. A liquid detergent dispensing system for a washing machine, comprising:

  • a washing machine housing;

    a washing tub disposed in the washing machine housing;

    a liquid detergent storage container configured to store a liquid detergent;

    a liquid detergent supply pump configured to provide a positive pressure differential for supplying the liquid detergent to the washing tub, and configured to provide a negative pressure differential for removing residual liquid detergent not supplied to the washing tub;

    a support frame disposed under the washing machine housing to support the washing machine housing, the liquid detergent storage container being placed within the support frame; and

    a liquid detergent supply passage provided between the washing tub and the liquid detergent storage container, the liquid detergent being supplied to the washing tub through the liquid detergent supply passage.

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