Moisture responsive control system

Claim 1

AN ELECTRICAL LOAD CIRCUIT INCLUDING IN SERIES A SUBSTANTIALLY CONSTANT VOLTAGE SOURCE FOR APPLYING A SUBSTANTIALLY CONSTANT VOLTAGE THERETO, AN ELECTRICAL LOAD AND A SYMMETRICAL MOISTURE RESPONSIVE CURRENT CONTROLLING DEVICE RESPONSIVE TO THE MOISTURE OF THE ENVIRONMENT AFFECTING THE SAME FOR SUBSTANTIALLY INSTANTANEOUSLY ENERGIZING THE ELECTRICAL LOAD WHEN THE CURRENT CONTROLLING DEVICE IS SUBJECTED TO AT LEAST A PREDETERMINED HIGH MOISTURE VALUE, SAID CURRENT CONTROLLING DEVICE COMPRISING A NONRECTIFYING SEMICONDUCTOR MATERIAL AND ELECTRODES IN NONRECTIFYING CONTACT THEREWITH FOR ELECTRICALLY CONNECTING THE SAMD IN SERIES IN THE ELECTRICAL LOAD CIRCUIT, SAID SEMICONDUCTOR MATERIAL HAVING A THRESHOLD VOLTAGE VALUE, SAID SEMICONDUCTOR MATERIAL HAVING A NEGATIVE MOISTURE-RESISTANCE COEFFICIENT FOR DECREASING AND INCREASING THE RESISTANCE THEREOF AND FOR LOWERING AND RAISING THE THRESHOLD VOLTAGE VALUE THEREOF AS THE VALUE OF THE MOISTURE AFFECTING THE CURRENT CONTROLLING DEVICE INCREASES AND DECREASES RESPECTIVELY, SAID SEMICONDUCTOR MATERIAL HAVING AT LEAST PORTIONS THEREOF BETWEEN THE ELECTRODES IN ONE STATE WHICH IS OF HIGH RESISTANCE AND SUBSTANTIALLY AN INSULATOR FOR BLOCKING THE FLOW OF CURRENT THERETHROUGH SUBSTANTIALLY EQUALLY IN EACH DIRECTION BELOW THE THRESHOLD VOLTAGE VALUE WHICH IS LOWERED AND RAISED UPON INCREASE AND DECREASE IN THE VALUE OF THE MOISTURE AFFECTING THE CURRENT CONTROLLING DEVICE, SAID SEMICONDUCTOR MATERIAL HAVING AT LEAST PORTIONS THEREOF BETWEEN THE ELECTRODES IN ANOTHER STATE WHICH IS OF LOW RESISTANCE AND SUBSTANTIALLY A CONDUCTOR FOR CONDUCTING THE FLOW OF CURRENT THERETHROUGH SUBSTANTIALLY EQUALLY IN EACH DIRECTION SAID AT LEAST PORTIONS OF SAID SEMICONDUCTOR MATERIAL BEING CONTROLLED BY THE SUBSTANTIALLY CONSTANT VOLTAGE APPLIED TO THE ELECTRICAL LOAD CIRCUIT, AND BEING SUBSTANTIALLY INSTANTANEOUSLY CHANGED FROM THEIR BLOCKING STATE TO THEIR CONDUCTING STATE WHEN THE THRESHOLD VOLTAGE VALUE OF THE CURRENT CONTROLLING DEVICE IS LOWERED TO AT LEAST THE SUBSTANTIALLY CONSTANT VALUE OF THE APPLIED VOLTAGE UPON INCREASE OF THE VALUE OF THE MOISTURE AFFECTING THE CURRENT CONTROLLING DEVICE TO AT LEAST SAID PREDETERMINED HIGH MOISTURE VALUE.