Control valving system for flame spraying apparatus

Claim 1

IN A SPRAYING SYSTEM FOR SPRAYING HEAT-FUSIBLE MATERIAL INCLUDING A HEAT-FUSIBLE MATERIAL SPRAY GUN; GAS CONDUIT MEANS FOR SUPLYING AT LEAST ONE COMPONENT OF A COMBUSTIBLE GAS MIXTURE TO SAID GUN, AND VALVE MEANS FOR CONTROLLING THE FLOW OF GAS THROUGH SAID GAS CONDUIT MEANS, THE IMPROVEMENT WHICH COMPRISES SAID VALVE MEANS BEING COMPOSED OF FIRST VALVE MEANS HAVING A FIRST AND SECOND OPERATING POSITION CONNECTED IN SAID CONDUIT MEANS, SECOND VALVE MEANS HAVING A FIRST AND SECOND POSITION OF OPERATION CONNECTED IN SAID CONDUIT MEANS, SAID VALVE MEANS AND THEIR ASSOCIATED PORTIONS OF SAID CONDUIT MEANS DEFINING IN ONE SEQUENTIAL OPERATIONAL POSITION OF SAID FIRST AND SECOND VALVE MEANS, A FULL OPERATIONAL GAS FLOW PATH THROUGH SAID CONDUIT MEANS, AND IN AN ALTERNATE SEQUENTIAL OPERATIONAL POSITION OF SAID FIRST AND SECOND VALVE MEANS, A REDUCED GAS FLOW PATH THROUGH SAID CONDUIT MEANS AND IN A FURTHER ALTERNATE SEQUENTIAL OPERATIONAL POSITION SHUTTING OFF THE GAS FLOW THROUGH SAID CONDUIT MEANS, AND MEANS FOR ACTUATING SAID VALVE MEANS BETWEEN THEIR FIRST AND SECOND OPERATING POSITIONS TO ESTABLISH SAID ONE SEQUENTIAL OPERATIONAL POSITION, SAID ALTERNATE SEQUENTIAL OPERATIONAL POSITION AND SAID STILL FURTHER ALTERNATE SEQUENTIAL OPERATIONAL POSITION.