(under the class definition) Apparatus in which a filter media through which the gas is constrained to pass comprises bristle like or strand like members held so that at least one extremity of each such member is not secured to a holder or support, e.g., a knot or tuft held by a ferrule.
SEE OR SEARCH THIS CLASS, SUBCLASS:
329, for a brush type filter combined with a serially arranged basically different separator.
SEE OR SEARCH CLASS
96, Gas Separation: Apparatus,
390+, for shelf or edge type filter and see (1) Note to that subclass.
