US PATENT SUBCLASS 219 / 485
.~.~.~ With total current or power limiting means

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
482  DF  .~ With power supply and voltage or current regulation or current control means {4}
483  DF  .~.~ Controlling or regulating plural separate distinct heating resistance elements(i.e., one control system for all elements) {3}
485.~.~.~ With total current or power limiting means

DEFINITION

Classification: 219/485

(under subclass 483) Subject matter including means whereby the total current traversing the plurality of resistance elements at any time is maintained at or below a predetermined value or whereby the total power consumed by the plurality of heating elements is maintained constant.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

33+, for load current control systems for maintaining a constant load or current in plural loads.