Appeal No. 2000-0803
Application 05/333,233
space and to transfer the heat by radiation to the burner load
(column 3, lines 57-60). Schade further explains that heat
absorbing and dissipating element 26 “may be a foraminous
member, an open-ended, solid wall cylinder, or the like, to
permit exhausting of the products of combustion” (column 3,
lines 72 through column 4, line 3). Schade also describes the
wall of heat absorbing and dissipating element 26 as being
“formed from one or more layers of metal screens having meshes
in the order of 40 to 200 meshes per inch” (column 4, lines
21-23).
Hailstone pertains to a radiant heater device having a
honeycomb-shaped refractory structure 6. As explained at
column 3, lines 34-36, combustion takes place in regions 7
near the base of each cell of the honeycomb structure which is
in contact with a hole 5 of the injector plate 4.
Bryan discloses a gas fired infrared apparatus capable of
generating heat and/or light energy (column 1, lines 13-17).
Bryan’s apparatus comprises a radiant unit 36 supported within
a reflector 56, and means for supplying air and gas to the
apparatus. More particularly, the radiant unit includes a
cone shaped perforated radiant 44, a sleeve type gas mantle 58
5
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