Patent ID: 6369714
Filing Date: 2002-04-09
Classification: D06F

Abstract:
A water leak detection and correction device comprising:a power source comprising a first terminal and a second terminal; a first relay coil comprising a first terminal and a second terminal, said first terminal of said power source being connected to said first terminal of said first relay coil; a liquid sensor comprising a first terminal and a second terminal, said first terminal of said liquid sensor being connected to said second terminal of said first relay coil, said liquid sensor not comprising an amplifying circuit; a reset switch comprising a first terminal and a second terminal, said first terminal of said reset switch being connected to said second terminal of said liquid sensor and said second terminal of said reset switch being connected to said second terminal of said power source; a first normally open relay comprising a first terminal and a second terminal; said first terminal of said first relay being connected to said first terminal of said power source; a first electrically operated valve comprising a fist terminal and a second terminal, said first terminal of said first valve being connected to said second terminal of said fist relay and said second terminal of sad first valve being connected to said second terminal of said power source; said first relay being operatively controlled by said first relay coil such that said first relay is closed when current flows through said first relay coil; a second normally open relay comprising a first terminal and a second terminal; said first terminal being connected to said first terminal of said power source and said second terminal being connected to said first terminal of said reset switch such that when said second relay is closed power is supplied to said test relay coil even if said liquid sensor no longer senses liquid; a third normally open relay comprising a first terminal and a second terminal, said first terminal being connected to said fist teal of said power source, said second relay and third relay being controlled by said first relay coil; and an alarm circuit comprising a first terminal and a second terminal, said first terminal of said alarm circuit being connected to said second terminal of said third relay and said second terminal of said alarm circuit being connected to said second terminal of said power source.