Electrostatic powder coating installation

Details Electrostatic powder coating installation Electrostatic powder coating installation

1978-09-21

1981-03-24

McIntosh, John P.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

Electrostatic and/or electromagnetic attraction or...

55351, 55487, 118603, 118DIG7, B05C 1500

Patent

active

042573459

ABSTRACT:
Electrostatic powder coating installation includes an enclosure through which a movable filter belt extends. A suction device draws air and excess powder towards one face of the filter belt which has a predetermined permeability so as to collect the powder on one face thereof and to allow air to flow therethrough to an exhaust plenum. A second movable belt formed of a coarse, monofilament, screen material is disposed in registry with the other face of the filter belt to prevent contact between the filter belt and the exhaust plenum. A cleaning device removes the excess powder from the one face of the filter belt; which powder, through a separator, is collected in a supply container for reapplication to the workpiece.

REFERENCES:
patent: 1818391 (1931-08-01), Greene
patent: 3552099 (1971-01-01), Floyd
patent: 3717978 (1973-02-01), Osborne, Jr.
patent: 3744450 (1973-07-01), Hardy
patent: 3918641 (1975-11-01), Lehmann et al.
patent: 4153008 (1979-05-01), Marino et al.

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