US PATENT SUBCLASS 219 / 264
.~.~.~.~ Thermally responsive


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

200  DF  HEATING DEVICES {14}
260  DF  .~ Resistive element: igniter type {6}
262  DF  .~.~ With current control or external circuit connection or disconnection means {2}
263  DF  .~.~.~ Automatic {1}
264.~.~.~.~ Thermally responsive {1}
265  DF  .~.~.~.~.~> Bimetallic or other flexible means


DEFINITION

Classification: 219/264

(under subclass 263) Subject matter wherein the current control or external circuit connection or disconnection means is thermally responsive to the condition of the ignition unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

494+, and 510+, for thermally responsive current control or external circuit connection means for heaters in general under the class definition.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

117, for thermally responsive switching systems. 337, Electricity: Electrothermally or Thermally Actuated Switches, appropriate subclasses for electrothermally and thermally actuated switches.

361, Electricity: Electrical Systems and Devices,

161+, for thermally actuated relay circuits.