Appeal No. 1998-0837
Application No. 08/516,752
calendar stack with heated rolls... having insulation
elements... in effect a calendar hood" and "it would have been
prima facie obvious to use a calendar hood as claimed for the
obvious advantages of conserving heat and not exposing the
paper to ambient temperature, especially when the calendar
contains heated rolls which is now a well known conventional
option in calendaring a paper web to use heated rolls, as
exemplified by Verkasalo and is even admitted on page 4, lines
1-15 of the instant application... [f]urthermore, Munari is
cited as conceptually showing extending a dryer hood 9 over
the paper web path at 7 up to the calendar stack in order to
keep a particular paper web heated right up to the calendar
stack" (answer, pages 3-4).
Appellants counter that in Verkasalo "[t]he insulation
elements, however, do not extend from the dryer hood, let
alone in a continuous and uninterrupted manner... [t]he
Verkasalo insulation and heating elements are representative
of the prior art short-comings discussed in Applicants'
5
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