Electrostatic powder deposition

Details Electrostatic powder deposition Electrostatic powder deposition

1976-04-27

1978-02-07

Rimrodt, Louis K.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

239 15, B05B 502

Patent

active

040721299

ABSTRACT:
Powder to be deposited electrostatically by spraying from a nozzle is charged tribo-electrically. The powder is admitted at a controlled rate to a housing through which an air stream is caused to flow and becomes charged by frictional impact with the surface of a rotor which intercepts the air stream. Charged powder suspended in the air stream passes through a conduit to the nozzle at which a baffle is located to cause the powder to be sprayed in a predetermined distribution.

REFERENCES:
patent: 2877137 (1959-03-01), Juvinall et al.
patent: 3691991 (1972-09-01), Luderer et al.
patent: 3901184 (1975-08-01), Payne et al.
patent: 3905330 (1975-09-01), Coffee

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