Appeal 2007-0904
Application 11/025,331
Appellants invented an alternating current inverter for use in an
electrically powered fork lift truck. Particularly, the invention uses an
inverter to drive a plurality of electric motors. (Specification 1.)
Claim 1 is illustrative and representative of the claimed invention. It
reads as follows:
1. An alternating current inverter comprising:
a housing;
a power module within the housing;
a direct current source in electrical communication with the housing;
a plurality of electric motors in electrical communication with the power
module; and
the power module having two separate and independently drivable power
stages for driving the electric motors.
In rejecting the claims on appeal, the Examiner relied upon the
following prior art:
Katagiri US 5,619,111 Apr. 8, 1997
Cook US 5,789,879 Aug. 4, 1998
Okushima US 6,486,632 B2 Nov. 26, 2002
Xu US 6,906,479 B2 Jun. 14, 2005
The Examiner rejected the claims on appeal as follows:
A. Claims 1, 6, 9, 16, 18, and 21 are rejected under 35 U.S.C. § 102(b) as
being anticipated by Katagiri.
B. Claims 3 through 5, 7, 19, and 20 are rejected under 35 U.S.C. §
103(a) as being unpatentable over Katagiri.
2
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