Appeal No. 1998-1263
Application No. 08/351,993
maintaining a clamp load across the brake stack during a high
energy stop that is more uniform than the clamp load across the
brake stack that results when only using a pressure plate of
steel. We are informed by the present specification (page 9)
that "rigid" is "defined as having greater resistance to bending,
flexing, deformation and flow than AMS 6302 steel." Second, we
consider the claim recitation of a first rigid disk as the front
axial end of a brake stack, which first rigid disk is contacted
by pressure application members or actuators. It is quite clear
to us from the underlying disclosure that the claimed first rigid
disk is a first or front disk contacting the pressure application
members or actuators.
Anticipation under 35 U.S.C. § 102(b) is established only
when a single prior art reference discloses, either expressly or
under principles of inherency, each and every element of a
claimed invention. See In re Schreiber, 128 F.3d 1473, 1477,
44 USPQ2d 1429, 1431 (Fed. Cir. 1997); In re Paulsen, 30 F.3d
1475, 1478-79, 31 USPQ2d 1671, 1673 (Fed. Cir. 1994); In re
Spada, 911 F.2d 705, 708, 15 USPQ2d 1655, 1657 (Fed. Cir. 1990);
and RCA Corp. v. Applied Digital Data Sys., Inc., 730 F.2d 1440,
1444, 221 USPQ 385, 388 (Fed. Cir. 1984). However, the law of
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