B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/17.1
B05B 5/02 (1980.01)
Patent
CA 1090116
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. 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 extension assembly in- cludes an electrically nonconductive extension member having an elect- rical passage in it, and a flexible electrical conductor has a first end extending into the electrical passage and a second end extending into an electrical passage in the barrel of the gun where the conductor is adapted to be connected to a source of high voltage power. The gun further incorporates improved packingless bellows sealing between an opening into the coating conduit in the barrel of the gun and a control rod for a needle valve in the conduit.
291429
Corporation Nordson
Macrae & Co.
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