Appeal No. 2000-1413
Application No. 08/650,883
lower layer back into the pool water. Instead, as is urged by
appellant, the layer (9) in the position seen in Figure 3 of
the Yellott patent will actually be transparent to the heat
radiation coming from the pool water, thus allowing it to be
transmitted through over-layer (9) into the air space (10),
where the heat energy will then be trapped and reflected off
the interior wall of over-layer (9), and back into the
airspace (10), thereby creating the "green house" effect
described in Yellott (col. 1, lines 48-57). In this regard,
the material of the transparent over-layer (9) in Yellott may
be said to provide unidirectional reflectivity, i.e., whereby
it is transparent to essentially all of the solar spectrum
(including heat radiation) directed at the air space (10),
e.g., as seen in Figure 4 of Yellott, and then acts as a heat
trap by reflecting the long wave heat radiation from the
interior surface of the over-layer (9) when such heat energy
attempts to reradiate from the air space (10).
As a result of the foregoing, it is abundantly clear to
us that the over-layer (9) of Yellott will not reflect a
substantial amount of the heat radiating from the pool water
5
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007