(under subclass 200) Subject matter including a single heating device with means whereby the structure which comprises the heating device, as a whole or in part, is adapted to perform both a heating function and a nonheating function, to perform plural separate heating functions or to perform the heating function in a different mode. Some examples of the patents classified here are; heater-fan, heater-light, convection type radiant type or radiant-hot plate, to name a few.
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231, for convertible heated type hand held instruments.
249, for convertible soleplate type heater devices.
285, for fluid heaters operating in different modes.
350, for convertible radiant heaters.
371, for convertible convection heaters. 421, for heaters for deep well type enclosures adapted for conversion to hot plates.
452.13, for an exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) having a frame, casing, or housing for a heating unit (e.g., range top, stove top, countertop, etc.) that is convertible.
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99, Foods and Beverages: Apparatus,
340, for convertible cooking devices and subclass 357 for a cooking device combined with means performing another function.
165, Heat Exchange,
58+, for apparatus adapted for both heating and cooling and subclass 137 for convertible heat exchange devices.
