US PATENT SUBCLASS 310 / 332
.~.~.~.~.~ Multimorph

Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

300  DF  NON-DYNAMOELECTRIC {4}
311  DF  .~ Piezoelectric elements and devices {17}
328  DF  .~.~ With mechanical energy coupling means {6}
330  DF  .~.~.~ Bending type {1}
331  DF  .~.~.~.~ Plural elements {1}
332.~.~.~.~.~ Multimorph

DEFINITION

Classification: 310/332

Multimorph:

(under subclass 331) Subject matter having at least two piezoelectric elements so joined and oriented that one expands while the other contracts to produce a bending type mechanical stress in the composite structure.

(1) Note. The elements of the multimorphs of this subclass type may be in direct physical contact with each other or may be separated by a spacing means or "center vane".

SEE OR SEARCH CLASS

369, Dynamic Information Storage or Retrieval,

144, for the structure of piezoelectric phonograph pickup s which utilize multimorphic elements.