Appeal No. 1997-2627
Application No. 08/424,122
appellant that the aforementioned rejection is not well
founded. Accordingly, we reverse this rejection.
Appellant’s apparatus claims 10-12 require that a thin
membrane separates an electrolytic solution into two volumes
and is made of a material having a specific electrical
conductivity which is the same magnitude as that of high
density polyethylene when immersed in the electrolytic
solution. Solution fraction claims 13-18 recite solution
fractions which are made by operating a device having such a
membrane.
Moeglich ‘475 discloses three membrane structures: 1) the
capillary membrane assembly (10) shown in figures 1-4, 2) the
film membrane assembly described in U.S. 4,124,458 to Moeglich
(Moeglich ‘458), which is incorporated by reference in
Moeglich ‘475 (col. 2, lines 38-41), and 3) the sandwich
membrane (29) illustrated in figure 5b (col. 7, lines 9-15).
The capillary membrane assembly (10) in figures 1-4 has
layers of capillary material (11) which form capillary
channels that allow passage of anions and cations therethrough
and are interposed with separation layers (13) of inert,
impermeable material having a high dielectric constant, e.g.,
4
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