(under subclass 561) Systems comprising a tank having a discharge passage which may be moved or adjusted with respect to the tank to (1) remove material from a particular part of the tank, or (2) determine the level of material retained in the tank and/or the amount withdrawn from the tank.
SEE OR SEARCH THIS CLASS, SUBCLASS:
101.29, for a swinging outlet pipe controller in a self proportioning system.
152, for means for mounting siphons.
395+, for apparatus for controlling outflow from a tank which is liquid level responsive or liquid level maintaining.
438, for float arm operated valves associated with a movable nozzle or inlet terminal. 590+, for tanks with internally extending flow guides or pipes which are not movable.
615+, for articulated or swinging spouts or discharge outlets for distributing systems where the flow conduit is not mounted on a tank.
SEE OR SEARCH CLASS
222, Dispensing,
434+, for adjustable overflow and/or outlet pipes for varying trap chamber volume in dispensers.
