(under subclass 168.1) Subject matter wherein there is more than one passage-forming element in the mixing chamber.
(1) Note. A branched tube constitutes plural injectors, while a single tube or nozzle having a plurality of perforations without projecting hollow fluid conducting members does not constitute plural injectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173.1+, for plural injectors in a mixing chamber not having a rotatable stirrer.
181.6, for feed means having plural identical outlets opening into a mixing chamber all of the outlets being connected to the same source of material. See the search notes in subclass 181.6 for further locations of mixing apparatus having plural material feed means or outlets.
