Appeal No. 1998-0294
Application No. 08/318,726
plurality of metal casings (9) within which are heating
elements (11a), and on the outside of which is filter material
(10) that is in contact with water in a reservoir (7). Water
flows to the surface of the filter material where it is frozen
by the airflow from the cooling unit so that a layer of ice is
established on the external surface of the filter material.
When the heating elements on the inside of the metal casings
are energized, the heat flows through the casings and the
filter material and causes some of the ice to be sublimated,
which results in a desired amount of vapor being mixed with a
passing stream of cool air.
Schladitz is directed to an apparatus for vaporizing fuel
oil prior to supplying it to a burner. To accomplish this,
Schladitz discloses a housing (10) within which is a
perforated fuel oil supply pipe (4) that is surrounded by a
porous body (1) of polycrystalline metal whiskers or the like.
The porous body is heated so that the fuel oil “is being
transformed into vapor during its passage . . . [and] emerges
as a vapor from the outer peripheral surface” (column 1, line
6
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