Appeal No. 96-0881
Application No. 07/795,908
which are based upon and controlled by nominal conductivity
values which are attained from the concentration labels of the
concentrates. However, according to appellants, such
concentration values have been found to vary as much as plus
or minus five percent which "produce errors in the actual
final concentrations achieved"(specification, page 3, lines
11-20). Appellants’ invention is said to solve the above
problem by calculating the actual conductivity contributions
of the individual chemical components of the concentrate being
utilized(Abstract of the Disclosure).
Appealed claim 1 is directed to a method of mixing
dialysate comprising, inter alia, the steps of "determing the
actual concentration of individual concentrate components to
be mixed as a dialysate[emphasis added]" and "determining the
actual conductivity of a dialysate to be formed by the
concentrate components and water[emphasis added]". It is
these steps which appellants contend are not described or3
carried out in the prior art systems. Thus, in the brief at
3Similar claim language is present in the apparatus
claims on appeal. Claim 14, for example, requires "means for
determining the actual concentration of individual components
to be mixed."
5
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