US PATENT SUBCLASS 219 / 516
.~.~.~.~ Insertable into or in direct contact with heated material

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

200  DF  HEATING DEVICES {14}
507  DF  .~ With current connection and/or disconnection means (e.g., switch) {2}
509  DF  .~.~ Automatically operated {3}
510  DF  .~.~.~ Thermally responsive {7}
516.~.~.~.~ Insertable into or in direct contact with heated material

DEFINITION

Classification: 219/516

(under subclass 510) Subject matter wherein the particular current connection or disconnection means is adapted to inserted into or attached in direct heat transfer contact with the material to be heated.

SEE OR SEARCH THIS CLASS, SUBCLASS:

450, above for hot plate type heating devices combined with thermostatic control devices in direct contact with a vessel or other cooking device to be heated.