Appeal No. 1999-0405
Application No. 08/651,571
plurality of grooves on the surface of the shaft adjacent the
bearing ring, with the plurality of grooves receiving an
adhesive for securing the bearing ring to the shaft, as set
forth in claim 19 on appeal. Again the examiner has turned to
the teachings of Hattori, urging that it would have been
obvious to one of ordinary skill in the art to form the shaft
(15) of Mordue with a plurality of grooves adjacent the
bearing ring as taught by Hattori for the purpose of forming a
strong joint.
Similar to Thut and Cooper, Mordue is directed to the
high temperature environment of a molten metal pump and
involves the use of a graphite shaft and a silicon carbide
bearing ring bonded thereto. We note again that Hattori is
specifically directed to a solution for poor bonding of
fluorocarbon polymer articles to metal partner materials and,
absent appellants’ disclosure, we see no reasonable suggestion
or motivation for combining Mordue and Hattori in the manner
urged by the examiner. Certainly the mere fact that the
Hattori reference is classified in class 156, Adhesive
Bonding, does not mean that it is automatically or obviously
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