Abstract: A paint spray gun is provided with a mounting bracket for mountably supporting the housing of the gun. The bracket has a clamping section with a substantially circular opening therein. The bracket includes a split ring for clamping the gun within the circular opening, and has a shaft extending outwardly from the clamping section for mounting in a support. The mounting bracket allows placement of plural guns in close proximity for specialty work. The gun may further be provided with a thumb operated wheel disposed in a recess in the housing for controlling the flow of fanning air, and may have the needle which controls paint flow fixedly attached to an actuator piston assembly. In a preferred embodiment, all of the seals within the gun are formed from a material which will not swell or deteriorate when the gun is immersed in an organic solvent for a period of three hours. Preferred material for the seals is polytetrafluoroethylene.

Abstract: A paint spray gun including a housing, an assembly and an air cap for controlling paint fanning. An air restrictor limits the total air cap pressure, such that it may emit a high volume of spray at a low air cap pressure. The restriction of pressure is achieved by restricting air flow within the housing by an enlarged section of a central rod which cooperates with a bore forward in the bolt, which connects the housing to the assembly. Movement of the rod controls both the valve movement and the pressure.

Abstract: The turbo-compressor air supply system of the present invention supplies air to a paint spray system or the like at an elevated pressure. The turbo-compressor includes a housing and a rotatable, vertically-disposed drive shaft centrally disposed within the housing, and a bearing housing which houses a concentrically disposed bearing. The system comprises a rotatable section centrally disposed about the shaft. The section includes a first rotor and a second rotor. Each rotor comprises a first series of blades spirally arrayed about the center of the shaft. The first series of blades are sandwiched between a first pair of plates. The rotors are rotatably driven in the same direction as the shaft, as air is directed onto and through the blades. The rotors are coaxial with the shaft. The rotatable section also includes a tubular sleeve which is mounted about the shaft. The sleeve separates the rotors, and the sleeve is rotatable with the rotors and the shaft in the same direction as the rotors and the shaft.

Abstract: A turbo-compressor air supply system for supplying air at relatively low pressure and high volume to a paint spray system or the like. The air supply system comprises a drive motor including a casing, a drive shaft projecting from the casing and air intake means in fluid communication with the casing. A turbo-compressor is provided which includes a housing, a drive shaft having first and second projecting ends, a bearing housing projecting from the compressor housing and disposed concentrically around and spaced from a projecting end of the drive shaft and a bearing disposed concentrically around the projecting end. A drive train couples the compressor drive shaft with the other projecting end of the drive motor drive shaft to enable the motor to drive the turbo-compressor. Means are provided for placing the bearing housing in fluid communication with a drive motor casing and associated air intake means to provide cooling for the bearing.

Abstract: A paint spray gun is provided with a means of adjustably controlling fanning of the spray which may be regulated independently of the rotative position of the air cap. A valve member axially shiftable by an adjustment screw adjustably controls the flow of air to fanning control ports in the air cap without interfering with the flow of atomizing air to the paint spray nozzle.

Abstract: A turbo compressor mounted upon a hollow box-like housing is provided with a noise suppressor which includes a rectangular open ended box-like structure suspended from the housing by flexible walled tubes which constitute an air inlet and an air outlet to the housing through which air flows to prevent heat build up within the housing. The suppressor walls are lined with a sound absorbent material which, combined with the non-rigid suspension of the suppressor from the housing and the non-linear air entrance and exit paths to and from the housing, suppresses sound generated by flow of high pressure air from the compressor into the housing through a shaft bearing. Noise generated by the flow of air into the compressor inlet is reduced by blocking the inlet with a block of porous foamed plastic material which also functions as an inlet filter.