Vortex effect electrostatic fluidized bed coating method and apparatus
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United States of America Patent
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Aug 19, 1986
Grant Date -
N/A
app pub date -
Mar 7, 1985
filing date -
Mar 7, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrostatic fluidized bed coating method, apparatus and system utilize a vortex effect within the particle cloud to produce coatings of exceptional uniformity upon a workpiece. The vortex effect produces a secondary particle cloud and a secondary electrostatic field, which contribute to the uniformity of the deposit, and the amount of metal structure included in the unit may be minimized, also to enhance uniformity. Operation can be carried out at voltages that are significantly reduced from those required for similar systems known in the art.
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