Appeal No. 2005-0661
Application No. 09/894,480
Applied Digital Data Sys., Inc., 730 F.2d 1440, 1444, 221 USPQ
385, 388 (Fed. Cir. 1984). In other words, there must be no
difference between the claimed invention and the reference
disclosure, as viewed by a person of ordinary skill in the field
of the invention. Scripps Clinic & Research Found. v. Genentech
Inc., 927 F.2d 1565, 1576, 18 USPQ2d 1001, 1010 (Fed. Cir. 1991).
The Heath reference pertains to pivot bearings for disk
drive rotary actuators. The description of the embodiment shown
in Figures 1 through 4 illustrates the basic nature of these
bearings:
[i]n the example of FIGS. 1, 2, 3 and 4, the disk
drive has a rectangular housing or base plate 1
supporting a disk 2 with a rotational axis 3. Fixed to
the housing 1 is a pillar 4 with two spaced abutments
5. Each abutment has a part circular abutment face and
the two abutments are spaced axially apart along a line
parallel to the axis 3. A thin flexible plate 7 is
attached along its two opposite edges extending
parallel to the axis 3, at one side to the pillar 4 and
at the other side to a region 8 of the rotary arm 9.
The head arm 9 has mounted on it a recording head
10 and a voice coil 11. The head arm 9 has a recess 12
in which is located the rolling member 17.
The rolling member 17 shown in FIG. 4 is in this
example in the form of a relatively thick substantially
rectangular plate having two spaced part circular
abutments 18 separated by a cut away region 20 through
which the flexible plate 7 passes. The plate 7 is as
wide as reasonably fills the extent of the cut away
portion 20 whilst not obstructing or contacting the
member 17. The rolling member 17 has a part circular
rolling surface 19 at its tip extending along its axial
length on the side remote from the two spaced abutments
18. The rolling surface 19 engages in rolling
4
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