B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
117/54, 32/17.2
B05D 1/06 (2006.01) B05B 5/03 (2006.01) B05B 5/053 (2006.01) B05B 5/08 (2006.01)
Patent
CA 1262081
ABSTRACT OF THE DISCLOSURE An electrostatic powder spray coating method and apparatus for producing evenly coated continuous films of thermoplastic and thermosetting powders on substrates or parts having electrically conductive geometric complex surfaces, is described. The method and apparatus of this invention enables the use, without the occurrence of "cobwebbing," of significantly higher charging voltages for the spray gun in the spray coating of preheated substrates and parts, thus allowing faster coating lines. The invention features the use of a grounded electrically conductive ring for grounding the ionized field in the powder discharge region of the spray gun.
539112
Creech Ronald G.
Hart Stephen
Kiefer Steven L.
Creech Ronald G.
Gowling Lafleur Henderson Llp
Hart Stephen
Kiefer Steven L.
Morton Thiokol Inc.
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