US PATENT SUBCLASS 367 / 174
.~.~ Transducer with diaphragm

Current as of: June, 1999
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367 /   HD   COMMUNICATIONS, ELECTRICAL: ACOUSTIC WAVE SYSTEMS AND DEVICES

140  DF  SIGNAL TRANSDUCERS {4}
141  DF  .~ Underwater type {15}
174.~.~ Transducer with diaphragm {1}
175  DF  .~.~.~> Diaphragm with electric driving coil

DEFINITION

Classification: 367/174

Transducer with diaphragm:

(under subclass 141) Subject matter having a flexible member which couples vibrations in an acoustic medium to or from the transducer element.

SEE OR SEARCH THIS CLASS, SUBCLASS:

163, for similar subject matter wherein the transducer is of the piezoelectric type.