US PATENT SUBCLASS 219 / 668
.~.~.~ With protection

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

600  DF  INDUCTIVE HEATING {7}
660  DF  .~ With power supply system {3}
661  DF  .~.~ Power switching {4}
668.~.~.~ With protection

DEFINITION

Classification: 219/668

With protection:

(under subclass 661) Subject matter wherein an arrangement is provided to prevent damage to the power switching device.

SEE OR SEARCH THIS CLASS, SUBCLASS:

716, for microwave heating devices having a power switching system with detectors.

723, for a microwave heating device with interlock circuiting and an additional safety feature.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

1+, for the safety and protection of systems and devices.