Appeal No. 97-1647 Page 9
Application No. 08/321,255
F.3d 1350, 1355, 47 USPQ2d 1453, 1456 (Fed. Cir. 1998); In re
Beattie, 974 F.2d 1309, 1311-12, 24 USPQ2d 1040, 1042 (Fed.
Cir. 1992).
Here, Owe discloses a head suspension mechanism for
adjusting the fly height between the surface of a disc and a
slider supported on an arm in a magnetic disc drive. Col. 3,
ll. 37-40. The initial static load of the slider is adjusted
by modifying a feed distance of a mechanical screw. Col. 6,
ll. 20-22.
Murata, however, discloses a problem associated with
using a mechanical screw. Specifically, vibrations or
temperature changes can loosen the screw causing the height to
fluctuate. Col. 1, ll. 62-66. This is undesirable. The
reference also discloses a solution to the problem.
Specifically, Murata uses a laser to permanently bend a base
of a head to thereby adjust the position of the head. Col. 4,
ll. 26-45. The reference thereby adjusts the position of the
head without being influenced by vibrations and temperature
changes. Col. 2, ll. 23-25.
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