US PATENT SUBCLASS 310 / 316.03
.~.~.~.~ Charging and discharging

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}
314  DF  .~.~ Electrical systems {5}
316.01  DF  .~.~.~ Input circuit for simultaneous electrical and mechanical output from piezoelectric element {2}
316.03.~.~.~.~ Charging and discharging

DEFINITION

Classification: 310/316.03

Charging and discharging:

(under subclass 316.01) Subject matter having specific circuitry (e.g., capacitor, coil, combination etc.) either (a) to source electrons flowing to the piezoelectric element, or (b) to sink electrons flowing from the piezoelectric element.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

225+, for the step of merely charging or polarizing piezoelectric material.