(under the class definition) Apparatus having a trough, open tank or holder type fluid handling means which depends for its distributing function upon the fact that accumulated fluid runs over the top or edge of the retaining wall or over or through a depression or notch in a wall much as in the case of a weir to the surrounding area.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17+, for ornamental fountains which may involve overflow discharge.
542, for decelerator devices which are conduit or nozzle attached and which depend upon an over-all increase in the volume of at least a portion of the flow conduit or a discharge area greater than the inlet area to decrease the velocity of the supplied fluid.
