US PATENT SUBCLASS 392 / 330
.~.~.~.~.~ Movable dielectric means

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
311  DF  .~ Fluid-in-circuit type heater {6}
324  DF  .~.~ Steam or vapor generator {2}
325  DF  .~.~.~ Line connected boiler {3}
329  DF  .~.~.~.~ With means to adjust current path between elctrodes {1}
330.~.~.~.~.~ Movable dielectric means

DEFINITION

Classification: 392/330

Movable dielectric means:

(under subclass 329) Subject matter wherein the current path is adjusted by a shiftable electrical insulation means interposed between or surrounding the electrodes whereby the passage of current between the electrodes may be controlled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

317, for continuous flow of fluid being heated.

SEE OR SEARCH CLASS

338, Electrical Resistors,

82, for fluid resistance devices with an adjustable insulating barrier between electrodes.