Appeal No. 96-3130
Application 08/225,653
1577, 221 USPQ 929, 933 (Fed. Cir. 1984)), it not necessary that
the cited references or prior art specifically suggest making the
combination (B.F. Goodrich Co. V. Aircraft Braking Systems
Corp., 72 F.3d 1577, 1582, 37 USPQ2d 1314, 1318 (Fed. Cir. 1996)
and In re Nilssen, 851 F.2d 1401, 1403, 7 USPQ2d 1500, 1502 (Fed.
Cir. 1988)). Rather the test for obviousness is what the
combined teachings of the references would have suggested to one
of ordinary skill in the art. In re Young, 927 F.2d 588, 591, 18
USPQ2d 1089, 1091 (Fed. Cir. 1991) and In re Keller, 642 F.2d
413, 425, 208 USPQ 871, 881 (CCPA 1981).
Here, Piatti discloses a cylinder head 1 including a deck
surface (the bottom surface of the head 1), a combustion chamber
having first and second wedge portions (see Figs. 2-4 and 10), an
exhaust valve port having an exhaust valve seat 1b disposed at a
first angle relative to the deck surface, an intake valve port
having an intake valve seat 1a that is disposed at a second angle
relative to the deck surface, the second angle being less than
the first angle (see column 6, lines 52-59; Figs. 1-4 and 10) and
an intake passage (see Figs. 2-4 and 10). Sperry discloses a
cylinder head 18 having a deck surface (that surface adjacent
gasket 22), a combustion chamber having wedge portions 20, inlet
and exhaust ports 26, 24, an intake passage 4 which includes a
8
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