(under subclass 148) Dispensers having means constructed to pass through the dispenser outlet passage to clean the same.
SEE OR SEARCH THIS CLASS, SUBCLASS:
322, for dispensers having discharge assistant with an actuator (for a movable dispenser element) projecting through the dispenser outlet.
501, for valve or closure elements, capable of stopping flow through the dispenser outlet and leaving an actuator projecting through an outlet. If there is no element capable of stopping flow, the device is in subclasses 149+.
SEE OR SEARCH CLASS
137, Fluid Handling,
244+, for cleaning means in which a mechanical member passes through a flow passage. 239, Fluid Sprinkling, Spraying, and Diffusing,
114+, for cleaners which pass through the nozzle outlet to clean same, and subclasses 569+ for nozzles having restrictors combined therewith, some of which pass through and clean the nozzle outlet.
