Vertical electrostatic coater having vortex effect

Details Vertical electrostatic coater having vortex effect Vertical electrostatic coater having vortex effect

1996-04-22

1998-06-30

Beck, Shrive

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

427475, 427482, 427486, 118630, 118634, 118DIG5, B05D 124, B05D 720, B05B 5025

Patent

active

057730970

ABSTRACT:
The electrostatic fluidized bed coating apparatus and system employ a vertically extending gaseous vortex of charged particles. Effects of variations in particle distribution, size, and electrostatic charge strength are minimized by the vertical orientation, enabling the production of coatings of exceptional uniformity. The apparatus is especially suited for construction to simultaneously coat a number of strands of wire or the like.

REFERENCES:
patent: 3326182 (1967-06-01), Inoue
patent: 3396699 (1968-08-01), Beebe et al.
patent: 3822140 (1974-07-01), Gyarmati et al.
patent: 3916826 (1975-11-01), Knudsen
patent: 4008685 (1977-02-01), Pierce
patent: 4011832 (1977-03-01), Westervelt et al.
patent: 4035521 (1977-07-01), Westervelt et al.
patent: 4100883 (1978-07-01), Lupinski et al.
patent: 4606928 (1986-08-01), Dunford et al.
patent: 4729340 (1988-03-01), Zeiss et al.
patent: 4808432 (1989-02-01), Hajek
"Powder breakthrough in wire coating market predicted within two years", D. J. Gillette Can. Paint & Finishing, Jun. 1975, pp. 24-25.

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