US PATENT SUBCLASS 340 / 620
.~.~.~.~.~ Electrode probe

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
603  DF  .~.~ Fluent material {7}
612  DF  .~.~.~ Material level {6}
618  DF  .~.~.~.~ Liquid {5}
620.~.~.~.~.~ Electrode probe

DEFINITION

Classification: 340/620

Electrode probe:

(under subclass 618) Subject matter having a sensor containing one or more conductive elements for passing current through the liquid.

(1) Note. Such current includes displacement current of a capacitive arrangement.

SEE OR SEARCH CLASS

73, Measuring and Testing,

304, for similar sensors in liquid level measuring circuits.

338, Electrical Resistors,

38, for resistive level sensors, per se.

361, Electricity: Electrical Systems and Devices, 284, for capacitive level sensors, per se.