Appeal No. 2000-1346
Application 08/730,516
environment disclosed by the Canadian reference. As indicated
above, the heating panels of the Canadian reference are
arranged in rows and at least some of the tubing lengths
associated with the plates in each row are serially connected.
It follows from the self-evident heat loss principles
discussed by Rupp that heating fluid flowing through the
Canadian reference’s serially connected tubing lengths will
heat the upstream panels more than the downstream panels,
resulting in a temperature differential along the reach of the
serially connected panels. While providing the tubing length
of each panel with a spiral shape of the sort disclosed by
Rupp arguably would produce a more uniform temperature
distribution over the surface of each individual panel, it
would not change the temperature differential along the extent
of the serially connected panels. Thus, the examiner’s
proposed modification of the Canadian reference in view of
Rupp would not result, in and of itself, in any apparent
uniform heat distribution advantage relevant to the Canadian
reference’s space heating objective.
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