Self-powered variable fluid proportioner

Claim 1

SELF-POWERED VARIABLE FLUID PROPORTIONER HAVING A FLUID MOTOR AND AT LEAST ONE FLUID PUMP, THE MOTOR AND PUMP IN COMBINATION COMPRISING: (1) A FLUID MOTOR HAVING A HOUSING PROVIDING A FLUID INLET AND OUTLET FOR A MAIN STREAM OF FLUID; (2) A RECIPROCABLE PISTON CARRIED IN THE HOUSING AND HAVING RODS EXTENDING FROM BOTH ENDS OF THE HOUSING; (3) A DIRECTIONAL VALVE CARRIED BY THE HOUSING AND HAVING A MOVABLE PISTON FLOW CONTROL MEANS ADAPTED TO RECEIVE FROM THE FLUID INLET AN INFLUENT STREAM UNDER PRESSURE AND TO SELECTIVELY FEED AND INFLUENT STREAM TO ONE OF TWO SIDES OF THE PISTON TO CAUSE THE PISTON TO MOVE IN THE MOTOR HOUSING, SAID PISTON FLOW CONTROL MEANS SELECTIVELY FEEDING THE EFFLUENT FLUID STREAM FROM THE OTHER SIDE OF THE PISTON TO THE FLUID OUTLET; (4) A PILOT VALVE CARRIED IN THE MOTOR HOUSING AND ADAPTED TO RECEIVED A PORTION OF THE INFLUENT PRESSURIZED STREAM OF FLUID AND TO SELECTIVELY FEED THIS INFLUENT STREAM TO ONE OF TWO ENDS OF THE DIRECTIONAL VALVE TO MOVE THIS VALVE TO ONE OF TWO FLOW CONTROL POSITIONS; (5) A PAIR OF ACTUATING ARMS EACH ATTACHED TO ONE END OF THE ROD OF THE PISTON TO MOVE WITH THE PISTON; A PORTION OF EACH ARM ADAPTED TO ENGAGE MEANS TO MOVE THE PILOT VALVE IN THE HOUSING TO CHANGE THE SELECTIVE FEED OF THE INFLUENT STREAM FROM THE PILOT VALVE; (6) AT LEAST ONE POSITIVE-DISPLACEMENT CHAMBER PUMP REMOVABLY MOUNTABLE ON THE MOTOR HOUSING, SAID PUMP HAVING A READILY REMOVABLE BARREL, PISTON AND PISTON ROD TO PROVIDE FOR A CHANGE IN SIZE, CAPACITY AND MATERIALS; (7) MEANS FOR A DRIVING CONNECTION BETWEEN THE PUMP AND ONE OF THE PISTON ACTUATING ARMS; (8) MEANS TO VARY THE DRIVING CONNECTION BETWEN THE PISTON ACTUATING ARM AND PUMP TO ADJUST THE PUMP DISPLACEMENT RELATIVE TO THE MOTOR EFFLUENT STREAM DISCHARGE RATE; (9) MEANS TO RECEIVE AND CONDUCT A TREATING FLUID TO THE PUMP; AND (10) MEANS TO CONDUCT THE TREATING FLUID FROM THE PUMP FOR ADMIXTURE WITH THE MAIN STREAM OF FLUID USED BY THE FLUID MOTOR.