Automatic flow control for automatic water softening system

Claim 1

A WATER SOFTENING SYSTEM COMPRISING, (A) A SOFTENER TANK AND A BRINE TANK, (B) A FIRST SUCTION CONDUIT CONNECTED TO SAID BRINE TANK AND SAID SOFTENER TANK, (C) A FIRST ELECTRICALLY CONTROLLED VALVE CONNECTED TO SAID SOFTENER TANK TO COMMUNICATE THEREWITH, (D) A DRAIN LINE CONNECTED TO SAID FIRST VALVE, (E) AN INLET CONNECTION CONNECTED TO SAID FIRST VALVE, (F) AND MEANS ON SAID VALVE CONNECTED TO SAID FIRST SUCTION CONDUIT TO PROVIDE A VACUUM THEREIN FOR PERMITTING THE FLOW OF BRINE FROM SAID BRINE TANK THROUGH SAID SUCTION CONDUIT TO SAID SOFTENER TANK DURING AN OPEN POSITION OF SAID VALVE, (G) A WATER CONNECTION ON SAID SOFTENER TANK, (H) A SECOND CONDUIT CONECTED TO SAID WATER CONNECTION AND SAID BRINE TANK, (I) A SECOND ELECTRICALLY CONTROLLED VALVE CONNECTED TO SAID SECOND CONDUIT DURING AN OPEN POSITION TO PROVIDE FOR THE FLOW OF WATER FROM SAID WATER CONNECTION TO SAID BRINE TANK, (J) TIMING MEANS CONNECTED TO SAID FIRST AND SECOND VALVES FOR OPENING SAID VALVES AT PREDETERMINED INTERVALS, (K) A FIRST PRESSURE RESPONSIVE SWITCH CONNECTED TO SAID FIRST ELECTRICALLY CONTROLLED VALVE, (L) A SECOND PRESSURE RESPONSIVE SWITCH CONNECTED TO SAID SECOND VALVE, (M) SAID SECOND SWITCH OPERATING AT A LOWER PRESSURE THAN SAID FIRST SWITCH, (N) MEANS PROVIDING COMMUNICATION WITH SAID SWITCHES AND SAID BRINE TANK COMPRISING, (O) A PRESSURE CHAMBER HAVING A GASEOUS FLUID COMMUNICATING WITH THE BRINE TANK AND SAID GASEOUS FLUID BEING IN PRESSURE SENSITIVE RELATION WITH THE WATER IN SAID BRINE TANK, (P) A PRESSURE LINE PROVIDING COMMUNICATION BETWEEN SAID PRESSURE CHAMBER AND SAID PRESSURE RESPONSIVE SWITCHED WHEREBY DURING A RISE OF WATER WITHIN SAID BRINE TANK TO A CERTAIN LEVEL SAID GASEOUS FLUID IS DIRECTLY RESPONSIVE TO SAID RISE AND SAID SECOND PRESSURE RESPONSIVE SWITCH IS ACTUATED TO CLOSE SAID SECOND VALVE TO SHUT OFF THE FLOW OF WATER TO SAID BRINE TANK, (Q) SAID FIRST SWITCH BEING OPERABLE DURING A FURTHER RISE OF WATER IN THE BRINE TANK TO ACTUATE SAID FIRST VALVE TO PROVIDE FOR THE FLOW OF BRINE TO SAID SOFTENER TANK WHEN A CERTAIN PREDETERMINED LEVLE IS REACHED IN SAID TANK.