US PATENT SUBCLASS 340 / 615
.~.~.~.~ Moving sensor (e.g., impeller)

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}
615.~.~.~.~ Moving sensor (e.g., impeller)

DEFINITION

Classification: 340/615

Moving sensor (e.g., impeller):

(under subclass 612) Subject matter wherein the presence or absence of material at the sensor is detected by the affect (e.g., damping) of the material on the motion of the sensor.

(1) Note. The term "motion" used above is also intended to

encompass vibration of low amplitude.

(2) Note. The sensor is often an impeller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

582, for a vibratory ice condition sensor.