Appeal No. 1998-0506
Application 08/314,994
the rejected claims which are not described in the prior art
relied upon in the rejection.").
What is important is the relationship between the
modulation function g(x) of the slots (figure 2) and the
density of magnetic energy f(x) of the magnets (figure 1).
The total magnetic energy (the integral of the product f(x)
times g(x)) should be independent of the angle of the rotor
(specification, page 8). This condition is satisfied when
the slots are aligned with increasing and decreasing
transitions in the magnitude of magnetic energy of the
permanent magnet elements as claimed. It is not clear from
the specification where the inflection points x' and x" in
the transitions of f(x) in figure 1 occur relative to the
physical ends of the magnet, but it can be inferred that
they coincide with the ends of the magnet or at the corners
as in figure 3. It appears that all permanent magnets would
inherently have a density of magnetic energy with increasing
and decreasing transitions. The fact that De Filippis does
not mention a "distribution of the density of magnetic
energy" with an "increasing transition in magnitude" and a
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