Appeal 2007-0571
Application 10/277,004
STATEMENT OF THE CASE
Appellants seek our review under 35 U.S.C. § 134 (2002) of the Examiner’s
final rejection of claims 1, 4-7, and 10-20.1 We have jurisdiction under 35 U.S.C.
§ 6(b) (2002).
SUMMARY OF DECISION
We AFFIRM-IN-PART.
THE INVENTION
Appellants’ claimed invention is to a system and method for providing
improved exhaust gas recirculation (EGR) mass flow rate to the intake manifold of
an internal combustion engine (Specification 2:[0005]). Claims 1 and 16,
reproduced below, are representative of the subject matter on appeal.
1. An apparatus comprising:
a first divided exhaust manifold in fluid flow
communication with a first exhaust gas recirculation
(EGR) path;
a second divided exhaust manifold in fluid flow
communication with a second EGR path;
a first check valve, arranged and constructed to prevent
backflow from an intake manifold and backflow from the
second divided exhaust manifold from entering the first
divided exhaust manifold;
a second check valve, arranged and constructed to
1 Claims 2 and 3 have been canceled and claims 8 and 9 are objected to as being
dependent upon a rejected base claim.
2
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