US PATENT SUBCLASS 118 / 621
.~ Electrostatic and/or electromagnetic attraction or projection of coating material to work

Current as of: June, 1999
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118 /   HD   COATING APPARATUS

620  DF  WITH MEANS TO APPLY ELECTRICAL AND/OR RADIANT ENERGY TO WORK AND/OR COATING MATERIAL {4}
621.~ Electrostatic and/or electromagnetic attraction or projection of coating material to work {6}
622  DF  .~.~> Hollow or reentrant work surface interiorly coated
623  DF  .~.~> Including electromagnetic field
624  DF  .~.~> Control of deposition of coating material or selective area, e.g., pattern or edge effect {1}
626  DF  .~.~> Projection from edge, e.g., electrostatic atomization
627  DF  .~.~> With assisting projection or spray of coating material through free space {3}
638  DF  .~.~> Work passes between spaced electrodes

DEFINITION

Classification: 118/621

(under subclass 620) Apparatus wherein there is movement of coating material to the work to be coated, which movement is caused, in whole or in part, by the force of an electrostatic and/or electromagnetic field.

SEE OR SEARCH CLASS

427, Coating Processes,

457+, for coating processes utilizing direct application of electrical, magnetic, wave, or particulate energy, specifically subclasses 472+ and 475+ for positioning,

orientation or application of sprayed or non-sprayed coating material utilizing electrostatic charge, field or force.