Appeal No. 1998-0514
Application 08/523,907
cutter cylinders formed of a composite carbon fiber
material are rotatably seated in pairs above each
other in a machine frame. The cutter holders
fastened on each cutter cylinder, along with the
cutters and the oppositely located counterweight,
are still made of metal. In this case it is[3]
disadvantageous that the mass inertia moment of the
rotating cutter cylinder system does not allow the
highest operational rpm with reduced energy
absorption. Furthermore, such a cross cutter does
not produce the optimum cutting quality for the web
because of the flexing of the cutter cylinders
during cutting.
Gomi, the examiner’s secondary reference, is directed to
an improved laminated roll formed from carbon fiber composite
materials (CFRP). Gomi indicates (column 1, line 64 through
column 2, line 15) that because carbon fibers have highly
anisotropic Young’s modulus and linear expansion coefficients,
it is difficult to fabricate high precision laminated rolls
formed from CFRP because unbalanced stress is produced in the
interior of the lamination structure. In particular, Gomi
states that “if the design of the lamination structure is not
correct, a stretching stress acts in the radial direction in
3The aforementioned translation of German ‘516 indicates
that cutter holders 10 are formed from metal (translation,
page 6, lines 8-10). However, the translation makes no
mention whatsoever of counterweights, or of the material from
which any such counterweights may be formed.
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