Appeal No. 97-3717 Page 6
Application No. 08/397,163
To support a rejection of a claim under 35 U.S.C. §
102(b), it must be shown that each element of the claim is
disclosed, either expressly described or under principles of
inherency, in a single prior art reference. See Kalman v.
Kimberly-Clark Corp., 713 F.2d 760, 772, 218 USPQ 781, 789
(Fed. Cir. 1983), cert. denied, 465 U.S. 1026 (1984).
Claim 9 recites an electromagnetically actuated valve
comprising, inter alia, a core, a coil, a valve seat, an
armature, a valve closing element, a valve needle and a valve
seat carrier wherein the material of the valve seat carrier
has a larger coefficient of thermal expansion than the
material of the valve needle.
Hunt discloses an electromagnetic fuel injection valve.
As shown in Figure 1, the electromagnetic fuel injection valve
includes a core 10, a coil 4, a nozzle seat 22, an armature
valve 26, a sleeve member 20 and ball valve 35. Hunt teaches
(column 2, lines 50-52) that the sleeve member 20 is formed of
a non-magnetic material such as plastics, ceramics, stainless
steel and the like. Hunt also teaches (column 2, line 58)
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