Electrostatic spray coating gun

Details Electrostatic spray coating gun Electrostatic spray coating gun

B - Operations, Transporting

05

B

32/17.1

B05B 5/02 (1980.01)

Patent

CA 1103016

ABSTRACT OF THE DISCLOSURE An electrostatic spray coating gun for applying coating materials which have high to moderately high electrical conductivity is disclosed. The gun has an improved high voltage electrical system, improved hydraulic seals, and is adaptable to apply porcelain enamel coatings in slurry form. The gun has a flexible and resilient electrode in the form of an elongated coil spring. This form of electrode substantially eliminates the likelihood of scratching or puncturing the skin of an operator or repairman, and allows the electrode to re- turn to its proper orientation after being bumped, while exhibiting proper paint charging characteristics for use in electrostatic spray coating. The electrode is positioned forward of a flat-fan spray nozzle and is displaced from the axis of the spray by means of an extension assembly which can be angularly displaced about the axis of the spray. The gun further incorporates improved packingless bellows sealing between an opening into the coating conduit in the barrel of the gun ant a control rod for a needle valve in the conduit.

291430

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