(under subclass 620) Apparatus wherein an electrostatic and/or an electromagnetic field is provided for the purpose of causing the particles of the coating material to assume a desired arrangement, formation or inclination to the work.
(1) Note. The orientation here included may be applied to previously-coated work as well as to work coated by other than electrostatic or electromagnetic means.
(2) Note. In this subclass may be found, for example, devices for coating sandpaper in which the particles of abrasive are subjected to the action of the electric field so that they will position themselves properly on the base.
SEE OR SEARCH CLASS
427, Coating Processes,
472+, for coating processes including aligning particles by electrostatic force.
