(under subclass 154) Apparatus providing means whereby a container may be filled with a liquid by evacuating the container either prior to or simultaneously with the liquid filling.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130+, for siphon systems with discharge controlling receiver.
571+, for distribution systems comprising plural tanks connected for series flow.
SEE OR SEARCH CLASS
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,
59+, for filling devices in which a separable receiver is placed under vacuum for filling. 166, Wells,
165, and the subclasses there noted for receptacles used in wells and filled by liquid because the receptacle has been evacuated or is filled with air at a pressure lower than the surrounding liquid.
417, Pumps,
118+, and particularly subclasses 148+ for means for pumping a liquid by exhausting a gaseous motive fluid from the liquid pump chamber.
