Automatic control for evaporative cooler

Claim 1

AN EVAPORASTIVE COOLER COMPRISING VERTICAL COOLER PAD MEANS, WATER PUMP MEANS FOR DELIVERING WATER TO THE UPPER END OF THE PAD MEANS, BLOWER MEANS FOR DIRECTING A FLOW OF AIR THROUGH THE COOLER PAD MEANS, CONTROL MEANS FOR AUTOMATICALLY TURNING SAID PUMP MEANS ON AND OFF RESPONSIVE TO THE PRESENCE OF A PREDETERMINED AMOUNT OF WATER MOVING THROUGH THE PAD MEANS, SAID CONTROL MEANS INCLUDING A WEIGHT CONTROLLED SWITCH, A TANK ASSOCIATED WITH SAID SWITCH FOR OPENING SAID SWITCH UPON AN INCREASE IN THE WEIGHT OF THE TANK, AND CLOSING SAID SWITCH UPON DECREASING THE WEIGHT OF THE TANK, SAID TANK BEING LOCATED BELOW THE COOLER PAD MEANS AND IN WATER RECEIVING COMMUNICATION THEREWITH FOR RECEIVING THE WATER FLOWING THROUGH THE PAD MEANS, SAID WATER INCREASING THE WEIGHT OF THE TANK SO AS TO OPEN THE SWITCH, SAID TANK INCLUDING A LIMITED OUTLET MEANS FOR ALLOWING A GRADUAL DISCHARGE OF WATER SO AS TO DECREASE THE WEIGHT OF THE TANK AND OPEN THE SWITCH.