US PATENT SUBCLASS 367 / 161
.~.~.~.~ Multimorph

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}
157  DF  .~.~ Piezoelectric {9}
160  DF  .~.~.~ Bending type {1}
161.~.~.~.~ Multimorph

DEFINITION

Classification: 367/161

Multimorph:

(under subclass 160) Subject matter having two piezoelectric elements so joined and oriented relative to one another that one expands while the other contracts to produce a bending-type stress in the composite structure.