Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1976-07-09
1978-03-07
Kaplan, Morris
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
219 7613, 239 83, 427307, 427402, 427404, B05D 108, B05D 310
Patent
active
040780970
ABSTRACT:
An arc spray gun has a high pressure air nozzle. To the front of the air nozzle are two wire guides. A suitable metallic wire extends through each metallic guide. An electrical potential is placed through each wire within the nozzle wire guide. As the wire is heated by the electrical potential beyond its melting point, high pressure air is ejected from the air nozzle, atomizes the metal wire, and blows a metallic spray forward. A nozzle housing is within the path of the spray. The nozzle housing has two frusto-conical sleeves coaligned to direct the flow of the metal spray. An orifice plate is positioned in the path of the metal spray. The orifice plate has a plurality of fine apertures extending through another portion thereof, and in its center portion has a plurality of larger apertures extending therethrough. The atomized metallic spray passes through the two sleeves and the orifice plate. The spray is propelled by the high pressure air stream with a force sufficient to adhere the atomized metallic spray to a thermoplastic material. A solvent is previously applied to thermoplastic material to soften the outer surface of the thermoplastic material to allow the atomized metallic spray to be imbedded in the plastic.
REFERENCES:
patent: 1133508 (1915-03-01), Schoop
patent: 1221104 (1917-04-01), Stolle
patent: 2982845 (1961-05-01), Lenni et al.
patent: 3016447 (1962-01-01), Gage et al.
patent: 3358114 (1967-12-01), Ingue
patent: 3947607 (1976-03-01), Gazzard et al.
patent: 4006340 (1977-01-01), Gorinas
International Prototypes, Inc.
Kaplan Morris
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