Electrostatic spray gun

Details Electrostatic spray gun Electrostatic spray gun

B - Operations, Transporting

05

B

32/59, 32/17.1

B05B 7/06 (2006.01) B05B 1/30 (2006.01) B05B 5/03 (2006.01)

Patent

CA 1150047

ELECTROSTATIC SPRAY GUN Abstract of the Disclosure An improved electrostatic spray gun, particularly of the hand-held type, is disclosed including an electrically in- sulative barrel and nozzle assembly, an electrically insulative air valve module mounted to the rear of the barrel assembly and externally thereof, and an electrically conductive metal handle assembly enclosing the rear end of the barrel and the air valve module. A charging electrode protrudes from the discharge orifice of the nozzle assembly. The flow of air through the barrel and nozzle assembly is controlled by a trigger which actuates the air valve. Actuation of the air valve in turn controls a needle and seat valve assembly close to the discharge orifice of the nozzle assembly to control the flow of coating material through the gun. A resistor is disposed inside the needle valve imme- diately upstream of the charging electrode. The elements of the electrostatic spray gun of this invention cooperate to provide a simple, lightweight, balanced gun having a high degree of re- liability and repairability and clean and safe operation.

354187

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