Control grid in electrostatic fluidized bed coater

Details Control grid in electrostatic fluidized bed coater Control grid in electrostatic fluidized bed coater

1980-01-23

1981-10-27

Newsome, John H.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 32, 427117, 427185, 118624, B05D 106

Patent

active

042973864

ABSTRACT:
Apparatus is provided for the fluidized bed electrostatic coating of workpieces, especially those of continuous length, such as metal wires. The apparatus includes a control grid (normally grounded), which spans the coating chamber and establishes an electrical effect which densifies and regulates the cloud of charged particles therewithin. Objects (also normally grounded) passed through the cloud so produced may therefore readily develop a uniform deposit upon all exposed surfaces.

REFERENCES:
patent: 3336903 (1967-08-01), Point
patent: 3593678 (1971-07-01), Miller
patent: 3690298 (1972-09-01), Venturi
patent: 3865079 (1975-02-01), Kellams et al.
patent: 3919437 (1975-11-01), Brown et al.
patent: 3979531 (1976-09-01), Heller
patent: 4069792 (1978-01-01), Nethersole
patent: 4073265 (1978-02-01), Walling et al.

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