US PATENT SUBCLASS 361 / 260
.~.~.~ With piezoelectric element

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

247  DF  IGNITING SYSTEMS {3}
253  DF  .~ For electric spark ignition {7}
258  DF  .~.~ With electromechanical generator {2}
260.~.~.~ With piezoelectric element

DEFINITION

Classification: 361/260

With piezoelectric element:

(under subclass 258) Subject matter wherein a piezoelectric crystal is mechanically stressed so as to produce a sparking voltage across electrodes appropriately connected to the crystal.