US PATENT SUBCLASS 381 / 166
.~ Having a fluid as a conducting element

Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

150  DF  ELECTRO-ACOUSTIC AUDIO TRANSDUCER {18}
166.~ Having a fluid as a conducting element {1}
167  DF  .~.~> Ionized gap, spark, or flame

DEFINITION

Classification: 381/166

Having fluid as a conducting element:

(under subclass 150) Subject matter wherein an electrically conductive element of the transducer is a fluid.

(1) Note. The fluid conducting element may be either the portion converting the signal between electrical variations and sound waves, or an electrode connecting the circuit to another transducer.

(2) Note. The fluid may include an ionized path between electrodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

165, for a fluid flow modifying transducer.