Appeal No. 2004-0929
Application No. 09/386,103
the core (col. 2, lines 25-37). Hoffman, however, indicates that
cylindrical heat transferring cores which are either solid or
hollow are effective for heat transfer to heat transferring fins
which surround the core (col. 1, line 68 - col. 2, line 1).
Hoffman, therefore, would have fairly suggested, to one of
ordinary skill in the art, the use in Grandmont’s heat sink of
heat transferring cores which are either solid or hollow. Hence,
we affirm the rejection over Grandmont in view of Hoffman of
claim 2 and claims 11 and 21 that stand or fall therewith.
Rejection of claim 7 under 35 U.S.C. § 103
over Grandmont in view of Dean
Claim 7, which depends from claim 1, requires a fan mounted
on an end of the heat exchanging section.
Dean discloses that it was known in the art to mount an
electrically powered cooling fan on top of a heat sink to enhance
the heat sink’s cooling capacity (col. 1, lines 36-38). Dean’s
heat sink may have a fan mounted directly on top of it to provide
cooling air flow over the heat sink’s radial cooling fins to
assist in the removal of heat from the heat sink and to provide
cooling air flow directly onto an underlying integrated circuit
device (col. 2, lines 37-43).
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