US PATENT SUBCLASS 219 / 702
.~ With control system

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

678  DF  MICROWAVE HEATING {15}
702.~ With control system {8}
703  DF  .~.~> Defrost
704  DF  .~.~> Load condition sensor {6}
714  DF  .~.~> Remote (e.g., card, etc.)
715  DF  .~.~> Power switching {3}
719  DF  .~.~> With timer
720  DF  .~.~> With display or alarm
721  DF  .~.~> Starting circuitry
722  DF  .~.~> Interlock circuitry and structure {2}

DEFINITION

Classification: 219/702

With control system:

(under subclass 678) Subject matter wherein a device is provided that indicates, maintains, or changes a condition on how the microwave energy acts upon a material or an object to be heated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

428+, for an electrical resistance heating device with power supply and voltage or current regulation or current control means.

625+, for inductive cooking with a condition responsive system.

663+, for an inductive heating switching power supply with a condition responsive system.

779, for a capacitive dielectric heating device with a condition responsive power supply system.