Humidifier

Claim 1

A HUMIDIFIER COMPRISING, A TANK WHICH IS TO BE POSITIONED WITHIN A HOT AIR CHAMBER WITH ONE SIDE WALL AT ONE SIDE OF THE CHAMBER, MOUNTING PLATE MEANS FOR SUPPORTING SAID TANK IN CANTILEVER FASHION WITHIN THE HOT AIR CHAMBER, AN ELECTRICAL TANK HEATING ELEMENT OPERATIVELY ASSOCIATED WITH SAID TANK, MEANS CONSTITUTING SUPPLY OF WATER TO SAID TANK AND INCLUDING A WATER SUPPLY PIPE AND A SOLENOID VALVE WHICH IS NORMALLY CLOSED AND WHIH HAS A VALVE SOLENOID WHICH IS ENERGIZED TO OPEN THE VALVE, A LOWER ELECTRICAL PROBE MOUNTED UPON SAID TANK AND POSITIONED THEREIN AT A MINIMUM DESIRED LEVEL OF WATER IN THE TANK, AN UPPER ELECTRICAL PROBE MOUNTED UPON DSIF TAND AND POSITIONED THEREIN AT THE MAXIMUM DESIRED LEVEL OF WATER IN THE TANK, A RELAY HAVING AN ENERGIZING SOLENOID AND A NORMALLY-CLOSED SWITCH WHICH IS CLOSED TO ENERGIZED SAID SOLENOID VALVE AND WHICH IS OPENED TO DE-ENERGIZE SAID SOLENOID VALVE, SAID RELAY ALSO HAVING A NORMALLY-OPEN SWITCH WHICH IS CLOSED BY THE ENERGIZATION OF SAID ENERGIZING SOLENOID, MEANS CONSTITUTING A SOURCE OF ELECTRICITY AND PROVIDING AN ELECTRICAL CIRCUIT FROM ONE SIDE OF SAID SOURCE OF ELECTRICITY THROUGH THE WATER IN SAID TANK TO SAID PROBES AND ALSO PROVIDING AN ELECTRICAL CONNECTION BETWEEN SAID UPPER PROBE AND ONE SIDE OF SAID ENERGIZING SOLENOID AND FROM THE OTHER SIDE OF SAID ENERGIZING SOLENOID TO THE OTHER SIDE OF SAID SOURCE WHEREBY SAID ENERGIZING SOLENOID IS ENERGIZED BY THE CONTACTING OF THE WATER WITH SAID UPPER PROBE, SAID NORMALLY-OPEN SWITCH HAVING ONE SIDE CONNECTED TO SAID LOWER PROBE AND HAVING ITS OTHER SIDE CONNECTED TO SAID UPPER PROBE WHEREBY SAID NORMALLY-OPEN SWITCH CONSITITUTES AN INTERLOCK CIRCURI TO HOLD SAID ENERGIZING SOLENOID OF SAID RELAY ENERGIZED AFTER THE WATER LEVEL DROPS FROM SAID UPPER PROBE AND UNTIL THE WATER LEVEL DROPS FROM SAID LOWER PROBE, AND ELECTRICAL CIRCUIT CONNECTING SAID VALVE SOLENOID IN SERIES WITH SAID NORMALLY-CLOSED SWITCH AND THENCE TO A PAIR OF ELECTRICAL SUPPLY LINES OF THE SOURCE OF ELECTRICITY, SAID ELECTRICAL CIRCUIT FURTHER INCLUDING A NORMALLY-CLOSED ELECTRICAL TIMING SWITCH ASSEMBLY FORMED BY A BIMETALLIC STRIP WHICH MOVES TO A CLOSED-SWITCH POSITION WHEN AT AMBIENT TEMPREATURES AND WHICH MOVES TO AN OPEN-SWITCH POSITION AT A PREDETERMINED ELEVATED TEMPREATURE, SAID BIMETALLIC STRIP HAVING THE CHARACTERISTIC THAT IT DOES NOT MOVE TO ITS CLOSED-SWITCH POSITION BECAUSE OF A REDUCTION IN ITS TEMPREATURE BELOW SAID PREDETERMINED ELEVATED TEMPREATUR, MEANS TO MOVE SAID BIMETALLIC STRIP FROM ITS OPEN-SWITCH POSITION TO ITS CLOSED-SWITCH POSITION, A CONTROL HEATER ELEMENT CONNECTED IN PARALLEL WITH SAID VALVE SOLENOID AND POSITIONED ADJACENT SAID BIMETALLIC STRIP TO HEAT THE SAME SIMULTANEOUSLY WITH THE ENERGIZATION OF SAID VALVE SOLENOID, SAID ELECTRICAL CIRCUIT FURTHER INCLUDING MEANS CONNECTING SAID ELECTRICAL TANK HEATING ELEMENT TO ELECTRICL SUPPLY LINES OF THE SOURCE OF ELECTRICITY, SAID TIMING SWITCH ASSEMBLY AND SAID CONTROL HEATER ELEMENT BEING SO RELATED THAT SAID BIMETALLIC STRIP IS HEATED TO SAID PREDETERMINED ELEVATED TEMPREATURE ONLY WHEN SAID CONTROL HEATER ELEMETN HAS BEEN ENERGIZED FOR A PREDETERMINED PERIOD OF TIME WHEREBY SAID BIMETALLIC STRIP REMAINS IN ITS CLOSED-SWITCH POSITION DURING NORMAL OPERATION AND MOVES TO ITS OPEN-SWITCH POSITION ONLY UNDER ABNORMAL CONDITIONS WHICH CAUSE SAID CONTROL HEATER ELEMENT TO BE ENERGIZED FOR AN EXCESSIVE PERIOD OF TIME.