Appeal No. 1997-0736
Application No. 08/384,916
of engines, because of the difficulty in providing a simple
mechanism which will ensure that the exhaust control valves
for both cylinder banks can be operated from a single servo
motor in synchronism with each other.4
Independent claim 1 is drawn to a V-type two-cycle
crankshaft compression internal combustion engine comprising,
inter alia, first and second exhaust control valves each
rotatably journaled in a respective one of the valve bores of
a pair of cylinder banks, and a common actuator for actuating
both of the first and second exhaust control valves
simultaneously.
4The inference that we draw from appellants’ background
information is that, when the present invention was made, it
was known to include exhaust control valves in both cylinder
banks of, for example, a V-type multiple cylinder engine, but
that it was difficult to apply these valves to such an engine
by virtue of having to use a complicated mechanism to operate
the valves in both banks, in synchronism, from a single servo
motor. Appellants have appended the patent to Ozawa to the
main brief, a document of record in the application.
Consistent with the above inference derived from the
specification, the Ozawa patent seems to us to be fairly
suggestive of a single servo motor for controlling exhaust
control valves in a V-type engine configuration. We refer
this document to the attention of the examiner in a remand,
infra.
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