US PATENT SUBCLASS 219 / 448.18
.~.~.~.~.~.~ Using bimetallic member-type sensor

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}
443.1  DF  .~.~ Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) {13}
446.1  DF  .~.~.~ Having sensor {2}
448.11  DF  .~.~.~.~ Responsive to temperature {4}
448.17  DF  .~.~.~.~.~ Of the exposed horizontal planar support surface {1}
448.18.~.~.~.~.~.~ Using bimetallic member-type sensor

DEFINITION

Classification: 219/448.18

Using bimetallic member-type sensor:

(under subclass 448.17) Subject matter wherein the temperature sensor employs a component comprising or consisting of two metals having different coefficients of

heat expansion whereby the sensor is deflected with a change in temperature to detect the temperature of the exposed horizontal planar support surface.