(under subclass 359) Apparatus in which the filter medium vibrates or has motion back and forth in a plane parallel to the surface of the filtering medium during filtration.
SEE OR SEARCH THIS CLASS, SUBCLASS:
354, for a filter medium flexed by fluid flow.
384, for a vibrator acting on a unidirectional motion filter medium.
385, for a filter having plural motions.
SEE OR SEARCH CLASS 209, Classifying, Separating, and Assorting Solids,
325+, 331, 333+, and 341 for shaking sifters for solids, and subclasses 437+ for reciprocating liquid treatment stratifiers.
