(under subclass 544) Dispensers having (1) two or more discharge controllers or closures for a single discharge outlet, or (2) either single or plural controllers or closures carried by an element (as a spout) separably attached to the receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
425+, for plural flow controllers or closures associated with trap chambers.
476, for spaced alternately seated flow controllers or closures for a single outlet.
482+, for plural flow controllers or closures associated with receptacles having plural openings.
502+, for flow controllers or closures formed of two or more sections which each covers part of the outlet area. 506, for plural flow controllers or closures, for a single outlet at least one of which has a relatively movable actuator.
532, for plural flow controllers or closures one of which is a closure type discharge guide.
541.1+, for plural flow controllers or closures one of which is frangible.
SEE OR SEARCH CLASS
137, Fluid Handling,
613+, for a single flow path system having plural serial valves.
220, Receptacles,
253, 254, 255, and 256+, for plural closures not associated with dispensing features.
