Appeal No. 93-3623 Page 16
Application 07/629,690
45. Hood's thin-film embodiment is essentially longitudinal
with the flow of reactants through the reaction chamber. (26:24-
28.)
46. The porous sheet is made of a compressed fibrous
material such as glass. (24:23-25.)
47. The record is not clear about whether porous glass
would have been considered hydrophobic.
48. We find that Hood does not teach or suggest orienting
the hydrophobic membrane longitudinally. Hood describes the
porous sheet as a "filter". (24:25-28.) We find insufficient
motivation to reorient Hood's transverse filter to become a
longitudinal substrate.
49. The examiner has provided no guidance on, and we do not
see, how Hara, Winter, and Leaback might supply the teachings or
suggestions missing in Hood.
E. Contoured cap and passage
50. Independent claim 19 (the third contested embodiment,
Figs. 11 & 12) requires
at least one end of said passage having a convex
surface to receive a cap member having a concave outer
surface;
the inner wall of a central portion of said
passage being raised, whereby the diameter of said
passage in said portion is reduced; and
shoulders at one end of said raised portion in
said passage to abut the end of an inlet or outlet tube
carried by said cap member.
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