Pump and filter assembly for swimming pool systems

Claim 1

UNITIZED APPARATUS DISPOSED IN A SWIMMING POOL SYSTEM COMPRISING A CASTING HAVING AN OUTER WALL AND PARTITION WALLS PROVIDING A STRAINER CHAMBER, A VALVE ASSEMBLY CHAMBER, A PUMP IMPELLER CHAMBER, ONE OF SAID PARTITION WALLS SEPARATING SAID PUMP IMPELLER CHAMBER FROM SAID STRAINER CHAMBER, SAID IMPELLER CHAMBER HAVING A SUCTION INLET OPENING FROM SAID STRAINER CHAMBER TO SAID PUMP IMPELLER CHAMBER, A VOLUTE CONNECTING THE PERIPHERY OF SAID PUMP IMPELLER CHAMBER TO SAID VALVE ASSEMBLY CHAMBER, SAID STRAINER CHAMBER HAVING A STRAINING MEANS THEREIN, AN INLET OPENING, AND A COVER OPENING BOUNDED BY A SEATING FLANGE, A CHECK VALVE NORMALLY CLOSING SAID INLET OPENING, SAID VALVE ASSEMBLY CHAMBER HAVING A PAIR OF PIPE CONNECTION OPENINGS FOR FLOW CONNECTION TO A FILTER, A PIPE CONNECTION OPENING FOR LOW CONNECTION TO SAID SWIMMING POOL, AND A PIPE CONNECTION OPENING FOR FLOW CONNECTION TO WASTE, AND A MULTIPLE VALVE ASSEMBLY IN SAID VALVE ASSEMBLY CHAMBER HAVING VALVE MEANS SIMULTANEOUSLY BLOCKING FLOW TO SAID FLOW CONNECTION TO WASTE AND FLOW BETWEEN SAID PUMP AND ONE OF SAID FILTER PUMP CONNECTION OPENINGS WHILE EXPOSING THE SWIMMING POOL PIPE CONNECTION OPENING TO THE LAST NAMED FILTER PIPE CONNECTION OPENING AND THE REMAINING FILTER PIPE CONNECTION OPENING TO SAID PUMP, AND MEANS FOR SHIFTING SAID VALVE MEANS TO A POSITION BLOCKING SAID SWIMMING POOL PIPE CONNECTION OPENING AND FLOW BETWEEN SAID PUMP AND SAID REMAINING FILTER PIPE CONNECTION OPENING WHILE EXPOSING SAID FIRST FILTER PIPE CONNECTION OPENING TO SAID PUMP AND SAID REMAINING FILTER PIPE CONNECTION OPENING TO WASTE.