US PATENT SUBCLASS 392 / 317
.~.~.~.~ 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}
314  DF  .~.~ Continuous flow of fluid being heated {4}
315  DF  .~.~.~ With means to adjust current path between electrodes {2}
317.~.~.~.~ Movable dielectric means

DEFINITION

Classification: 392/317

Movable dielectric means:

(under subclass 315) 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:

330, for adjusting current path between electrodes in line connected boiler.

SEE OR SEARCH CLASS

338, Electrical Resistors,

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