Appeal No. 2002-1443 Page 6
Application No. 09/251,833
With respect to the subject matter of claim 13, Adamson fails to disclose or teach
the following four of the features recited in claim 13:
(1) The heating assembly having a non-contact infrared heating element.
(2) The heating element being disposed such that there is a space
between the element and the lower platen.
(3) The heating element being disposed such that said lower platen is
substantially uniformly heated
(4) The radiation wavelength of the heating element being about 900 to
4,000 nanometers.
As to (4), the appellant has not challenged the examiner’s finding that it was known in
the art at the time of the appellant’s invention to utilize infrared radiation heaters having
a radiation wavelength of 900-4,000 nanometers in cooking appliances, as taught by
Payne.
Person discloses an electric heater comprising an enclosure(1) within which are
a plurality of heating coils (7), each installed in a slot (4) in a plastic base (3) of
insulation material. For cooking, Person provides a grid plate (16) and a cover or top
plate (17) “which may be readily removed or entirely eliminated” (page 1, lines 90-92).
Person further explains
said plate being provided with a plurality of slots or channels to aline with
the slots 4 of the insulating base 3. By arranging the slots in the grid plate
so as to aline with the longitudinal channels of the composition body, the
heat units which radiate from the heating coils 7, may readily pass through
said slots to be quickly absorbed by the articles placed on the grid plate”
(page 1, lines 80-89).
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