Appeal No. 1998-1533 Page 9
Application No. 08/411,202
Lastly, Tarter concludes (column 4, lines 62-68) that
the smaller the combined footprint of a set of friction
pads on a rotor, the higher the rotor axial natural
frequency that will be excited by the friction pads. In
addition, the higher the axial natural frequency that is
excited, the less likely that torsional modes at a lower
natural frequency will be created during a brake
application.
Feldmann's invention relates to a brake lining support in
disc brakes, particularly in fully-lined disc brakes of motor
vehicles. As shown in Figures 1-4, the disc brake includes a
caliper or actuator 15, a rotor 16, and a brake ring
consisting of three brake lining support segments 1, 8, 9. As
shown in Figure 2, segment 1 is equipped with four brake
linings or pads 2, 3, 4 and 5. Feldmann teaches (column 3,
lines 55-56, and claim 11) that each support segment has four
discrete linings or pads.
After the scope and content of the prior art are
determined, the differences between the prior art and the
claims at issue are to be ascertained. Graham v. John Deere
Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966).
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