Process and apparatus for electrostatically coating objects

Details Process and apparatus for electrostatically coating objects Process and apparatus for electrostatically coating objects

1982-08-20

1983-09-06

Lusignan, Michael R.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

118626, 118629, 239 3, 239703, 427240, B05D 104, B05D 106, B05D 500, B05B 504

Patent

active

044029918

ABSTRACT:
Process for electrostatically coating objects with a fluid, for instance liquid paint, by applying a high voltage to a spray bell and by feeding the fluid to a revolving, driven spray bell. The flow-rate of the fluid supplied to the center of the spray bell is decelerated nearly to zero when it enters the bell, then the rate of the fluid is increased by being accelerated by the bell to 15,000 to 60,000 rpm, and the fluid thereupon is centrifuged off the spray rim of the bell and is guided to the object to be coated.

REFERENCES:
patent: 3393662 (1968-07-01), Blackwell
patent: 3418971 (1968-12-01), Lamm
patent: 3442688 (1969-05-01), Pettigrew
patent: 4037561 (1977-07-01), LaFave et al.
patent: 4215818 (1980-08-01), Hopkinson

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