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Automatic water shut off system to prevent overflow of a plumbing device

  • US 20040007264A1
  • Filed: 01/14/2003
  • Published: 01/15/2004
  • Est. Priority Date: 07/12/2002
  • Status: Active Grant
First Claim
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1. A control circuit for a plumbing device having a drain line and a water supply line comprises:

  • a water sensor generating a potential overflow level signal in response to the water level in the plumbing device caused from a restricted drain line;

    an electrically controlled valve coupled the supply line; and

    a controller coupled to the water sensor and the valve, said controller closing the valve in response to a potential overflow level signal.

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