Appeal No. 97-3717 Page 14
Application No. 08/397,163
Second, on pages 10-11 of the brief, the appellant argues
that if one skilled in the art modified the structure of the
Terakado patent in view of the Kamiya patent, one would have
substituted titanium not only for the valve stem of the
Terakado patent, but also for all the components of the valve
body (including the casing) so that the valve body weight is
further reduced and the valve is made stronger. We do not
agree. We have reviewed the Kamiya patent and fail to find
any suggestion, teaching or motivation to make the changes
proposed by the appellant. However, it is our opinion that of
the Kamiya patent does provide the suggestion, teaching and
motivation to make the change proposed by the examiner. In
that regard, Kamiya specifically teaches to form the valve
body 31 of a light material, such as titanium, to reduced its
weight, thereby increasing its response characteristic to the
on-off operation of the exciting coil and reducing the time
required for the valve body to be stabilized when the valve is
opened or closed. In our view, this is sufficient suggestion,
teaching and motivation to
construct the valve stem (i.e., the moving body 6) of Terakado
from titanium.
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