Patent ID: 6612812
Filing Date: 2003-09-02
Classification: F04D,G05D

Abstract:
A semi-automatic electronic system for sensing and increasing a water level in a containment vessel to a predetermined level, said system comprising:a) a mode switch having an electrical terminal for electrically communicating with an AC power source, an AUTO electrical terminal, and a MAIN electrical terminal; b) a clock timer having a coil with a first electrical terminal and a second electrical terminal, and contacts with a first electrical terminal and a second electrical terminal; said first electrical terminal of said coil of said clock timer being in direct electrical communication with said AUTO electrical terminal of said mode switch and with said second electrical terminal of said contacts of said clock timer; said second electrical terminal of said coil of said clock timer for being in direct electrical communication with the AC power source; c) a first relay having normally closed contacts with a first electrical terminal and a second electrical terminal, normally open contacts with a first electrical terminal and a second electrical terminal, and a coil with a first electrical terminal and a second electrical terminal; said first electrical terminal of said normally closed contacts of said first relay being in direct electrical communication with said MAIN electrical terminal of said mode switch; said second electrical terminal of said normally closed contacts of said first relay being in direct electrical communication with said first electrical terminal of said normally open contacts of said first relay; said first electrical terminal of said contacts of said clock timer being in direct electrical communication with said second electrical terminal of said normally closed contacts of said first relay and with said first electrical terminal of said normally open contacts of said first relay; said second electrical terminal of said coil of said first relay being in direct electrical communication with said second electrical terminal of said coil of said clock time and for being in direct electrical communication with the AC power source; said first electrical terminal of said coil of said first relay being in direct electrical communication with said second electrical terminal of said normally open contacts of said first relay; d) a delay timer having a first electrical terminal and a second electrical terminal; said second electrical terminal of said delay timer being in direct electrical communication with said second electrical terminal of said normally closed contacts of said first relay, with said first electrical terminal of said normally open contacts of said first relay, and with said first electrical terminal of said contacts of said clock timer; e) a second relay having contacts with a first electrical terminal and a second electrical terminal, and a coil with a first electrical terminal and a second electrical terminal; said first electrical terminal of said contacts of said second relay being in direct electrical communication with said first electrical terminal of said delay timer; said second electrical terminal of said contacts of said second relay being in direct electrical communication with said second electrical terminal of said normally open contacts of said first relay and with said first electrical terminal of said coil of said first relay; f) a transformer having a primary winding with a first electrical terminal and a second electrical terminal, and a secondary winding having a first electrical terminal and a second electrical terminal; said first electrical terminal of said primary winding of said transformer being in direct electrical communication with said second electrical terminal of said coil of said first relay and with said second electrical terminal of said coil of said clock timer; said first electrical terminal of said primary winding of said transformer for being in direct electrical communication with the AC power source; said second electrical terminal of said primary winding of said transformer being in direct electrical communication with said MAIN electrical terminal of said mode switch; g) one of a pump and a solenoid valve having a first electrical terminal and a second electrical terminal; said first electrical terminal of said one of a pump and a solenoid valve being in direct electrical communication with said first electrical terminal of said coil of said second relay; said second electrical terminal of said one of a pump and a solenoid valve being in electrical communication with said second electrical terminal of said coil of said second relay; said second electrical terminal of said one of a pump and a solenoid valve being in direct electrical communication with said first electrical terminal of said secondary winding of said transformer; h) a water sensor switch having normally closed contacts with a first electrical terminal and a electrical second terminal, and a first electrical terminal and a second electrical terminal; said first electrical terminal of said normally closed contacts of said water sensor switch being in direct electrical communication with said first electrical terminal of said one of a pump and a solenoid valve and with said first electrical terminal of said coil of said second relay; said second electrical terminal of said normally closed contacts of said water sensor switch being in direct electrical communication with said second electrical terminal of said secondary winding of said transformer; and i) a water sensor element housing for positioning in the containment vessel and having a pair of electrical contacts; one of said pair of electrical contacts of said water sensor element housing being in direct electrical communication with said first electrical terminal of said water sensor switch and the other of said pair of electrical contacts of said water sensor element housing being in direct electrical communication with said second electrical terminal of said water sensor switch.