US PATENT SUBCLASS 361 / 295
.~.~.~.~ Piston trimmer

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

271  DF  ELECTROSTATIC CAPACITORS {4}
277  DF  .~ Variable {4}
287  DF  .~.~ Mechanically variable {5}
292  DF  .~.~.~ By varying effective area of electrode {6}
295.~.~.~.~ Piston trimmer

DEFINITION

Classification: 361/295

Piston trimmer:

(under subclass 292) Subject matter having a conductive piston-like electrode in a rotary screw engagement with a dielectric for capacitance adjustment, also said dielectric being banded by at least one other electrode.