US PATENT SUBCLASS 219 / 441
.~.~.~ With temperature or current control means

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

200  DF  HEATING DEVICES {14}
385  DF  .~ Combined with container, enclosure, or support for material to be heated {12}
438  DF  .~.~ With vessel {3}
441.~.~.~ With temperature or current control means {1}
442  DF  .~.~.~.~> Adjustable

DEFINITION

Classification: 219/441

(under subclass 438) Subject matter including means whereby the amount of current traversing the heating unit, or units, of the device is controlled between predetermined limits, current is completely cut off from the device or the temperature of the material to be heated is controlled between predetermined limits.

SEE OR SEARCH THIS CLASS, SUBCLASS:

482+, for heating devices of a general nature under the class definition combined with power supply, voltage or current regulation or current control means.

SEE OR SEARCH CLASS

99, Foods and Beverages: Apparatus,

325+, for cooking apparatus combined with automatic temperature control means.