B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/16.2
B05B 5/00 (2006.01) B05C 19/02 (2006.01) B05D 3/00 (2006.01)
Patent
CA 1087934
ABSTRACT OF THE DISCLOSURE A system and process for electrodynamic powder coating of conducting and non-conducting substrates using an electrodynamic fluidized bed. The system generally includes a coating applicator means for applying charged particles to the substrate to be coated, and postcharging means for ap- plying to the substrate an additional charge of such polarity as to cause an increase in the electrostatic forces holding the coating particles to the substrate. The system further includes a precharging means for precharging the substrate with a charge of such polarity as to effect more uniform coating of the substrate and a higher rate of coat- ing. Where the substrate to be coated is a continuous web, the system includes a conveying means for conveying the web through the various positions adjacent to the three afore- mentioned means. The coating applicator means may be an electrodynamic coating apparatus of the electrodynamic fluidized bed type and comprising a fluidized bed means and a charging bed means with a porous wall positioned there- between, and a recharging means.
272974
Continental Group Inc. (the)
Swabey Ogilvy Renault
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