Appeal No. 1997-4282
Application 08/164,608
rollers, resulting in overdrying of the web at its edges
(page 3). The rapid and uniform distribution of the DE ‘620
vapor along the length of the web causes the temperature along
the web to be more uniform (pages 3-4).
Carvill teaches that the object of filling the doctor
blade support member interior void is to render the support
member extremely resistant to warping upon substantial changes
in temperature, and Carvill provides evidence that the warping
is
less when the interior void is filled with liquid than when it
is unfilled or has cold water circulating through it (col. 1,
lines 46-56; col. 2, lines 42-59).
The examiner has not provided evidence or technical
reasoning which shows that the references themselves would
have led one of ordinary skill in the art to use the DE ‘620
technique, which is directed toward solving a problem of
heated rollers overheating the ends of a web, in the Carvill
apparatus, wherein a different technique is used to solve a
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