Filter and scouring gas blower system

Claim 1

LIQUID FILTERING APPARATUS HAVING A SERVICE CYCLE, A GAS SCOURING CYCLE, AND A BACKWASH CYCLE COMPRISING A FILTER CHAMBER HAVING AN INLET SIDE AND AN OUTLET SIDE, A FILTERED LIQUID STORAGE CHAMBER ABOVE SAID FILTER CHAMBER, PIPE MEANS CONNECTING SAID STORAGE CHAMBER WITH SAID OUTLER SIDE OF SAID FILTER CHAMBER TO RECEIVE FILTERED LIQUID THEREFROM, MEANS CONNECTING THE INLET SIDE OF SAID FILTER CHAMBER TO A SOURCE OF LIQUID TO BE FILTERED, SERVICE OUTLET MEANS FOR FILTERED LIQUID COMMUNICATING WITH SAID OUTLET SIDE OF SAID FILTER CHAMBER, NORMALLY CLOSED BACKWASH DISCHARGE OUTLET MEANS CONNECTED TO THE INLET SIDE OF SAID FILTER CHAMBER, VALVE MEANS TO OPEN AND CLOSE SAID PIPE MEANS CONNECTING SAID STORAGE CHAMBER AND SERVICE OUTLET MEANS TO SAID OUTLET SIDE OF SAID FILTER CHAMBER, SAID OUTLET SIDE OF SAID FILTER CHAMBER BEING AT A HIGH PRESSURE DURING SAID SERVICE CYCLE AND A LOW PRESSURE DURING SAID GAS SCOURING CYCLE, AN ACTUATABLE GAS BLOWER CONNECTED TO SAID OUTLET SIDE BY A VALVELESS GAS LINE, SAID GAS LINE EXTENDING ABOVE SAID SERVICE OUTLET MEANS, SAID GAS BLOWER WHEN ACTUATED EXERTING A PRESSURE GREATER THAN SAID LOW PRESSURE WHERBY GAS IS FORCED INTO SAID OUTLET SIDE AND TO SAID INLET SIDE OF SAID FILTER CHAMBER DURING SAID GAS SCOURING CYCLE, MEANS TO OPEN SAID BACKWASH DISCHARGE MEANS AT A LEVEL BELOW SAID SERVICE OUTLET MEANS AND TO CLOSE SAID VALVE MEANS TO INITIATE SAID GAS SCOURING CYCLE, SAID VALVE MEANS CLOSING AFTER SAID BACKWASH DISCHARGE MEANS HAS BEEN OPENED, AND MEANS FOR INITIATING THE BACKWASH CYCLE THEREAFTER BY OPENING SAID VALVE MEANS.