(under subclass 182) Subject matter wherein electrical connection of the liquid contact switch is made or broken responsive to the level or height of the liquid in the enclosing housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
61.2+, for similar switches of special application.
230, for switches wherein electrical connection is made or broken by the buoyancy of a float which is responsive to the rise and fall of a liquid (not to be confused with the liquid which is part of the switch).