Appeal No. 2001-2440
Application 09/309,066
element, both of which are integrated into the control circuit
(pages 4-5). A control computer distributes to a dosing element
adjustment device (20) and a doctor element adjustment
device (40) the adjustments required to correct the cross-
sectional weight (pages 7 and 9).
The examiner argues (answer, page 7):
It would further have been obvious that a review of the
combination of references in their entirety would
suggest that the feedback control pattern of McAleavey
could be used with a paper or cardboard web as
suggested by ‘183 with an expectation of desirable
coating control because McAleavey teaches a feedback
control pattern for desirably controlling coating
thickness and ‘183 teaches that it is also desirable to
use feedback control patterns for controlling coating
when coating paper or cardboard webs.
In the DE ‘183 feedback control, however, the adjustment devices
for the dosing slot and the doctor element are adjusted
simultaneously to bring about the desired adjustment of the long
wave and short wave coating weight deviations (pages 6-7).
Hence, it reasonably appears that if one of ordinary skill in the
art, considering DE ‘183, were to apply McAleavey’s method to a
paper or cardboard web, that person would use McAleavey’s
embodiment wherein, as in the DE ‘183 method, the coating medium
pumping rate and the space between the knife and moving web are
varied simultaneously (col. 8, lines 61-65).
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