Appeal No. 95-1641
Application No. 07/825,927
1.5 C described in the Yamauchi reference. Id. In othero
words, Yamauchi’s cooling rate, as read by one of ordinary
skill in the art, teaches or describes the claimed temperature
difference. We agree.
The phrase “a temperature difference of less than about
10 C” is interpreted as including a temperature difference ofo
0 to 10 C. When the temperature difference between a coolingo
means and a solution to be cooled is zero, no cooling is
carried out since the solution and the cooling means have an
identical temperature. That is, the temperature difference of
o o
0 C translates into a cooling rate of 0 C/hour. This finding
is consistent with the result that can be depicted with the
heat transfer formula: Q(the amount of heat transferred)=
(A(heat transferring area))x(Cp(heat transfer
coefficient))x(T2-T1(the temperature difference between the
solution to be cooled and the cooling means)). When T2-T1(the
temperature difference) is zero, the amount of heat
transferred will be zero regardless of the size of a heat
transfer area (A) and the Cp number. Moreover, we note that
appellants’ examples obtain a cooling rate as high as
1.9 C/hour, when the claimed temperature difference iso
5
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