Method of electrostatically enhancing deposition of air borne sp

Details Method of electrostatically enhancing deposition of air borne sp Method of electrostatically enhancing deposition of air borne sp

1978-08-09

1982-05-11

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft structure

Material discharging and diffusing

239171, 239691, 239704, 361218, 361227, B64D 118

Patent

active

043289401

ABSTRACT:
A method of spraying electrically charged particulate material to ground from a low flying airplane. The method includes the steps of imposing an electrical charge of given polarity upon an emitted primary spray of particulate material of sufficient magnitude to electrostatically enhance the deposition thereof and concurrently emitting a secondary spray of oppositely charged particulate material of selective character from said airborne source at a charge level of a magnitude to avoid material degradation of the charge on said primary spray intermediate its loci of emission and deposition.

REFERENCES:
patent: 1958406 (1934-05-01), Darrah
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patent: 3035208 (1962-05-01), Clark
patent: 3283210 (1966-11-01), Welsh
patent: 3297281 (1967-01-01), Felici
patent: 3521125 (1970-07-01), Nelson
patent: 3572609 (1971-03-01), Slawson
patent: 3600632 (1971-08-01), Bright et al.

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