US PATENT SUBCLASS 331 / 157
.~ Magnetostrictive


Current as of: June, 1999
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331 /   HD   OSCILLATORS

154  DF  ELECTROMECHANICAL RESONATOR {4}
157.~ Magnetostrictive


DEFINITION

Classification: 331/157

(under subclass 154) Oscillators wherein the resonator consists of a member of ferromagnetic composition having magnetostrictive properties and whose period of vibration or oscillation is due to the changes in dimensions produced by the effect of an impressed alternating magnetic field.

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure,

26, for the structure of reciprocating motors of the magneto-strictive type.

318, Electricity: Motive Power Systems,

118, for magnetostrictive motor systems. 367, Communication, Electrical: Acoustic Wave Systems And Devices, appropriate subclasses for underwater transducers of the magnetostrictive type.