Fluid sprinkling – spraying – and diffusing – Electrostatic type – Induction charging
Patent
1989-11-21
1991-09-03
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Electrostatic type
Induction charging
239705, 239707, B05B 5043
Patent
active
050445642
ABSTRACT:
An adapter for converting spray guns to electrostatic or induction charging includes a housing mountable on a spray gun. A high voltage power source is contained in the housing and is connected to an electrode assembly mounted on the front of the housing. The electrode assembly includes four electrodes which extend in front of the spray gun nozzle and air cap and are spaced symmetrically around the spray axis. The nozzle is electrically grounded, while the electrodes carry a voltage in the range of 3-15 kV, to produce in the spray path from the nozzle an electrostatic field which produces electrical charges on the sprayed particles. When conductive liquids are sprayed, the particles are charged by induction at relatively low electrostatic field gradients, while nonconductive liquids require high electrostatic field gradients which produce corona effects. These corona effects are enhanced by the provision of a corona needle mounted on the nozzle at the spray axis.
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Kashnikow Andres
Merritt Karen B.
LandOfFree
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