Appeal No. 2000-1639
Application No. 08/923,449
this time between production orders while they are temporarily
disposed within the gap (column 2, lines 14-17).
The specifics of Craemer’s method are depicted in Figure 2,
where it is seen that when it is desired to create a temporary
gap in a stream of paperboard products, the speed of the first
conveyor (26) of the corrugator is gradually ramped up from its
normal operating speed of about 10% of the speed of the double
facer (12) to a speed of about 50% of the speed of the double
facer (to create the gap), then held at that speed for a short
while, and then decreased back to its normal speed of about 10%
of the speed of the double facer (12). It can also be seen in
Figure 2 that while this occurs, the speed of the double facer
(12) and second conveyor (28) remain constant.
The difficulty we have with the examiner’s position is that
we see no cogent reason for providing a second downstream
conveyor in Jeschke and operating it in a manner which would
satisfy the claim requirement that the second downstream conveyor
runs at a slower speed then the first upstream conveyor based on
the teachings of Craemer. In this regard, the purpose for which
Craemer’s conveyors are provided and the way they operate is to
create a gap between production runs while permitting the
upstream double facer to run at a constant speed without
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