Method and apparatus for electrostatic coating of workpieces wit

Details Method and apparatus for electrostatic coating of workpieces wit Method and apparatus for electrostatic coating of workpieces wit

1991-04-18

1992-12-22

Lawrence, Evan

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

427479, 118312, 118634, B05D 106, B05B 503

Patent

active

051733269

ABSTRACT:
A method and an apparatus for electrostatic coating of workpieces with powdered material includes a plurality of successively arranged spray guns which are passed by the workpieces. At least the spray gun which is passed first by the workpieces is charged with recycled powder while at least the spray gun which is passed last by the workpieces is charged with fresh powder in form of a powder-air mixture containing a low amount of air and supplied at low velocity.

REFERENCES:
patent: 4288466 (1981-09-01), Heckman et al.
patent: 4301764 (1981-11-01), Campion et al.
patent: 4454832 (1984-06-01), Gernez
patent: 4824295 (1989-04-01), Sharpless
"Webster's Ninth New Collegiate Dictionary," Springfield, Mass., Merriam-Webster Inc., 1986, p. 267.

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