Pulsed power application system

Details Pulsed power application system Pulsed power application system

1977-01-11

1977-11-29

Kaplan, Morris

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

B05D 106

Patent

active

040606473

ABSTRACT:
A pulsed powder application system for electrostatically powder-coating a substrate comprises an applicator bed means, a fluidizing means, and a pulsing means. The pulsing means is actuable during a coating time to effect ionization of electrostatic powder particles so as to cause the establishment of an electric field attracting the particles to the substrate, and actuable during non-coating times to cause the establishment of a reverse electric field attracting the ionized particles away from the substrate. A feeder bed means and an associated fluidizing means are provided for holding the electrostatic powder prior to usage for coating by the applicator bed means.

REFERENCES:
patent: 2221338 (1940-11-01), Wintermute
patent: 2889805 (1959-06-01), Freeder
patent: 3212914 (1965-10-01), Lyle et al.
patent: 3248253 (1966-04-01), Barford et al.
patent: 3295440 (1967-01-01), Rarey et al.
patent: 3364053 (1968-01-01), Beike
patent: 3951099 (1976-04-01), Minckler

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