Method and apparatus for re-ionizing insulating powder in an ins

Details Method and apparatus for re-ionizing insulating powder in an ins Method and apparatus for re-ionizing insulating powder in an ins

1981-05-01

1983-05-24

Lawrence, Evan K.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

118627, 118634, 118638, B05B 504, B05D 106

Patent

active

043850790

ABSTRACT:
An apparatus and method of using the apparatus for electrostatically depositing powder on moving objects. The apparatus includes powder-spraying chamber, air-filtering units adjacent the entrance and exit of the chamber, and at least one re-ionization chamber disposed between an air-filtering unit and the powder-spraying chamber. Each re-ionization chamber has walls extending transversely to the direction of motion of the objects through the apparatus to direct powder towards the objects on which powder is to be deposited.

REFERENCES:
patent: 1735494 (1929-11-01), Chapman
patent: 3905785 (1975-09-01), Fabre
patent: 4301764 (1981-11-01), Campion et al.

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