Appeal No. 2001-2188
Application No. 09/085,300
disclosure does not provide sufficient teachings to allow for the
practice of the claimed subject matter without undue
experimentation.” In particular, the Examiner questions (id., at
4) how the optimum surface area value of 0.0819 mm2 is determined
from the relationships set forth at page 6 of Appellant’s
specification. It is apparent to us, however, that, following
Appellant’s description of the ratio relationship between
measured pump current at a preselected surface area and an
optimum surface area at an optimum or target pump current, the
calculation is straight forward. In other words, since the
preselected surface area 0.0625 mm2 is related to measured pump
current 3.65 mA in the same way that the target pump current of
4.8 mA is related to optimum surface area, then solving for the
unknown optimum surface area would yield a result of 0.0819 mm2.2
2 While Appellant’s describes a ratio relationship of target diameter to
preselected diameter of gas intake orifice at page 3 of the specification, the
ratio relationship described at page 6 of the specification utilizes a surface
area parameter of the gas intake orifice which takes into consideration the
thickness h of the diffusion barrier.
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