(under subclass 255) Apparatus in which the tanks or compartments are storage battery or electrolytic cells and means is provided for supplying liquid thereto, usually to maintain a constant liquid level in the cells.
(1) Note. Patents for subcombinations specialized for use in battery or cell filling apparatus are classified herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
386+, for liquid level responsive or maintaining systems other than those for storage batteries electrolytic cell, especially subclasses 453+ for barometric type level maintenance.
SEE OR SEARCH CLASS
141, Fluent Material Handling, With Receiver or Receiver Coacting Means, appropriate subclasses, especially
285+, for battery filling devices which are not continuously associated with a particular battery. 204, Chemistry: Electrical and Wave Energy,
263, and see the note thereto for electrolytic cells provided with means for feeding and/or withdrawing material therefrom.
429, Chemistry: Electrical Current Producing Apparatus, Product and Process,
72+, for battery having means feeding electrolyte thereto.
