Appeal No. 96-2191
Application 08/395,512
On the other hand, in the matter of a turntable intended
for rotating food being cooked in a microwave oven, the patent
to Pomeroy teaches those versed in the art to house the
turntable drive means in a shielding enclosure. As explained
by the patentee (column 5, lines 9 through 16), the outside of
a metallic enclosure 45 is covered with a layer of electrical
insulation to reduce arcing to the shield. It is noted by
Pomeroy (column 5, lines 27 through 29) that the amount of
microwave energy which enters the motor housing or enclosure
is negligible.
This panel of the board fully appreciates the examiner’s
understanding of the applied prior art and point of view as to
the obviousness of the claimed invention, as expressed in the
answer. However, when we set aside what appellants’
application teaches us regarding the present invention, and
focus upon the evidence of obviousness as a whole, we do not
discern any sug-gestion that would have been fairly derived by
one of ordinary skill in the art for modifying the metal food
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