Apparatus used in continuous process for electrostatic coating w

Details Apparatus used in continuous process for electrostatic coating w Apparatus used in continuous process for electrostatic coating w

1978-10-31

1980-10-28

Bowers, Jr., Charles L.

Coating apparatus

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

Electrostatic and/or electromagnetic attraction or...

118102, 118109, 118326, 118621, 118629, 118630, 118638, 427 25, 427 27, 427 33, 427348, 427350, 427369, B05B 502, B05B 714

Patent

active

042300681

ABSTRACT:
This invention relates to a continuous process for electrostatically coating a substantially axially symmetrical object with pulverized material, characterized by conveying said object by means of a conveyor-type holding device into an electrostatic coating chamber equipped with silent discharge plate electrodes on both sides of the chamber walls: feeding electrically charged pulverized material into said chamber: electrostatically coating said object with said pulverized material by the action of silent discharge from said electrodes: and removing surplus pulverized material from the specific parts of said object by suction.
This invention further relates to an apparatus used for continuously electrostatically coating a substantially axially symmetrical object with pulverized synthetic resin, characterized by comprising (i) an electrostatic coating chamber where said pulverized synthetic resin is coated on the surface of said object maintained at a temperature below the melting point of said resin, which object has been conveyed into said chamber by means of a holding device and (ii) a device for removing surplus pulverized resin from the specific parts of said object by suction in order to electrostatically coat the desired part only.

REFERENCES:
patent: 2442986 (1948-06-01), Ransburg
patent: 2625590 (1953-01-01), Peeps
patent: 3514803 (1970-06-01), Turney
patent: 3646909 (1972-03-01), Cole et al.
patent: 3918641 (1975-11-01), Lehmann et al.
patent: 3976031 (1976-08-01), Itoh
patent: 3991710 (1976-11-01), Gourdino et al.

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