Fluid sprinkling – spraying – and diffusing – Processes – Including electrostatic charging
Patent
1983-06-13
1985-12-24
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including electrostatic charging
239171, 239 69D, 239691, 244136, B05B 502, B64D 118
Patent
active
045601070
ABSTRACT:
Aerial spraying apparatus includes two sets of nozzles located at spaced locations on an aircraft. Each nozzle has an electrode associated with it to induce a charge on the cloud of droplets issuing from the nozzle. A high potential is maintained on each electrode by a power pack that induces an equal and opposite potential on the electrodes of each set. By virtue of the opposed polarity of the electrodes, the aircraft is maintained at a neutral potential. To prevent a potential being imposed due to spray being deposited on the electrodes, a pair of corona needles are provided to establish a leakage current and maintain the electrodes at the required potential. This prevents the system becoming imbalanced and a potential being established on the aircraft.
REFERENCES:
patent: 3260893 (1966-07-01), Cierva et al.
patent: 3297281 (1967-01-01), Felici
patent: 4328940 (1982-05-01), Malcolm
Report on "The Application of Electrostatically Charged Sprays from Aircraft", Southern Weed Science Society.
"Distribution of the Electric Field of An Electrostatic Spray Charging Aircraft", Carlton & Bouse.
"Electrostatic Spinner Nozzle for Charging Aerial Sprays", Carlton & Bouse.
"An Airfoil Sprayer", Cadavid and Roth Paper in ASEA Transactions-Carlton.
Leaflet showing one form of electrostatic spraying applied to aircraft.
Article "Jet Flaps", by Eclipse Systems Inc.
Ciba-Geigy AG
Kashnikow Andres
Moon, Jr. James R.
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