Fluid control means

Claim 1

IN A FLUID CONTROL SYSTEM, A CARTRIDGE TYPE VALVE BODY COMPRISING: A VALVE HOUSING INCLUDING FIRST AND SECOND END PORTIONS CONNECTED BY A CYLINDRICAL PORTION, AND CYLINDRICAL PORTION HAVING A CENTRALLY LOCATED DEPENDING ANNULAR VALVE SEAT AND RADIAL OPENINGS IN SAID CYLINDRICAL PORTION TO EITHER SIDE OF SAID ANNULAR VALVE SEATS; A RING VALVE SEAT; A FIRST DIAPHRAGM CONNECTING SAID RING VALVE SEAT TO SAID HOUSING, SAID FIRST DIAPHRAGM BIASING SAID RING VALVE SEAT INWARDLY FROM ONE OF SAID END PORTIONS; A FIRST SPRING IN SAID HOUSING AND OPERATIVELY CONNECTING SAID FIRST END PORTION AND SAID RING VALVE SEAT AND ASSISTING SAID FIRST DIAPHRAGM IN BIASING SAID RING VALVE SEAT INWARDLY OF SAID ONE OF SAID END PORTIONS; A POPPET RETAINER OF CYLINDRICAL CONSTRUCTION; A SECOND DIAPHRAGM CONNECTING SAID POPPET RETAINER TO SAID HOUSING, SAID SECOND DIAPHRAM BIASING SAID RETAINING TOWARDS SAID RING VALVE SEAT; A SECOND SPRING IN SAID HOUSING AND OPERATIVELY CONNECTING SAID SECOND END PORTION AND SAID POPPET RETAINER AND ASSISTING SAID SECOND DIAPHRAGM IN BIASING SAID RETAINER TOWARDS SAID RING VALVE SEAT; A FIRST POPPET MOUNTED ON SAID RETAINER AND ADAPTED TO COOPERATE WITH SAID RING VALVE SEAT; A SECOND POPPET MOUNTED ON SAID RETAINER AND ADAPTED TO COOPERATE WITH SAID DEPENDING ANNULAR VALVE SEAT OF SAID HOUSING; AND A VALVE OPERATING MEANS OPERATIVELY CONNECTED TO SAID RING VALVE SEAT TO MOVE SAID RING VALVE SEAT IN OPPOSITION TO SAID FIRST DIAPHRAGM AND SAID FIRST SPRING MEANS WITH SAID SECOND SPRING MEANS URGING SAID POPPET RETAINER TO FOLLOW UNTIL SAID SECOND POPPET ABUTS SAID DEPENDING ANNULAR VALVE SEAT OF SAID HOUSING.