US PATENT SUBCLASS 219 / 460.1
.~.~.~ Heating element gapped from underside of the exposed horizontal support surface (e.g., ceramic plate, radiation-type, etc.)

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}
460.1.~.~.~ Heating element gapped from underside of the exposed horizontal support surface (e.g., ceramic plate, radiation-type, etc.) {2}
461.1  DF  .~.~.~.~> Support for the heating element
462.1  DF  .~.~.~.~> Plural heating elements

DEFINITION

Classification: 219/460.1

Heating element gapped from underside of the exposed horizontal support surface (e.g., ceramic plate, radiation type, etc.):

(under subclass 443.1) Subject matter wherein the means to convert electrical energy into radiant heat is spaced from a surface lying underneath the exposed horizontal planar support surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

538+, for a heating unit structure.

SEE OR SEARCH CLASS

392, Electric Resistance Heating Devices,

418, for a radiant heater including a workpiece support.