(under subclass 215) Meters wherein the constriction comprises a submerged orifice or discharge nozzle.
(1) Note. For volume or rate of flow meters, Tank type, see Search This Class, Subclass, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
861, for volume or rate of flow meters, Tank type; meters under subclass 861 wherein the volume of fluent material is measured by the continuous filling and discharging of one or more tanks, buckets or hoppers. The filling and discharging is directly or indirectly controlled by the fluent material being metered.
861.61, for pressure differential type orifice or flow nozzle.
SEE OR SEARCH CLASS
137, Fluid Handling, 386+, for tanks provided with automatic control of filling and discharging in response to the liquid level therein wherein structure is claimed that is capable of general fluid feeding and not limited to use as a meter.
177, Weighing Scales,
18+, for a weigher of that class which also registers the number of fill and discharge cycles.
