Apparatus for spraying resin

Claim 1

APPARATUS FOR SPRAYING RESIN INCLUDING A GUN-SHAPED BODY HAVING A SUBSTANTIALLY CYLINDRICAL HOUSING, A PLUG REMOVABLY RECEIVED IN THE HOUSING AND HAVING A COUNTERBORE COMPRISING A MIXING CHAMBER, A FIRST CONDUIT CARRYING COMPRESSED AIR AND CONNECTED AXIALLY OF THE HOUSING, SAID PLUG HAVING AN AXIAL HOLE CONNECTING THE FIRST CONDUIT WITH THE MIXING CHAMBER, A CONTROL VALVE IN THE CONDUIT, A TRIGGER ON THE BODY CONTROLLING THE OPENING OF THE VALVE, A SECOND CONDUIT CARRYING A CATALYST AND CONNECTED TO THE SIDE OF THE HOUSING, SAID PLUG HAVING A PASSAGE CONNECTING THE SECOND CONDUIT WITH THE MIXING CHAMBER, A SECOND CONTROL VALVE AND POSITIONED IN SAI D SECOND CONDUIT, MEANS CONNECTING SAID TRIGGER TO CONTROL THE OPENING OF THE SECOND VALVE, A RESIN TANK, A THIRD CONDUIT AND CONNECTING THE RESIN TANK TO THE SIDE OF THE HOUSING, SAID PLUG HAVING A PASSAGE CONNECTING THE THIRD CONCUIT WITH THE MIXING CHAMBER, A THIRD CONTROL VALVE AND POSITIONED DIRECTLY ADJACENT THE HOUSING IN THE THIRD CONDUIT, MEANS CONNECTING THE TIGGER TO CONTROL THE OPENING IN THE THIRD VALVE, A HEAT EXCHANGER IN THE THIRD CONDUIT FOR HEATING THE RESIN PASSING THERETHROUGH, A PUMP IN THE THIRD CONDUIT BETWEEN THE HEAT EXCHANGER AND THE TANK, A RETURN CONDUIT FROM THE THIRD CONTROL VALVE TO THE PUMP, A BY-PASS CONDUIT FROM THE THIRD CONDUIT, IN FRONT OF THE THIRD CONTROL VALVE TO THE RETURN CONDUIT, A THROTTLE VALVE IN EACH OF THE BY-PASS CONDUIT AND THE RETURN CONDUIT, ADJUSTABLE MEANS IN THE TRIGGER AND THE TRIGGER CONNECTING MEANS WHEREBY EACH CONTROL VALVE CAN BE OPERATED A SELECTED RELATIVE AMOUNT UPON PULLING THE TRIGGER, AN ENLARGED MIXING CHAMBER REMOVABLY SECURED TO THE END OF THE HOUSING ADJACENT THE MIXING CHAMBER, BAFFLE MEANS IN THE ENLARGED MIXING CHAMBER FOR INSURING THE COMPLETE MIXING OF CATALYST AND RESIN PASS THERETHROUGH, AND A DISCHARGE NOZZLE REMOVABLY SECURED TO THE DISCHARGE END OF THE ENLARGED MIXING CHAMBER.