Appeal No. 95-2911
Application 07/814,693
ually, fail to teach or suggest a lead screw follower formed as
an upraised wedge-shape element having flat sides that engage the
thread groove of the feed crew, and in which this wedge-shape
element is formed of the very same press-worked sheet metal as
the head carriage itself. For emphasis, we note that Appellant’s
claim 5 recites a
floppy disk drive assembly having a magnetic head . . .
comprising: a carriage formed of sheet metal for
carrying the magnetic head; . . . in which the sheet
metal forming the carriage includes a narrow bracket
portion extending therefrom and having an integrally
formed, upraised, wedge-shaped element having flat
sides tapering to a thin edge for engagement with a
thread groove of the feed screw and being formed of
press-worked sheet metal, the sheet-metal being the
same sheet-metal forming the carriage so as to form a
unitary structure.
Upon a careful review of Kato, Aruga, Tanaka and Inoue, we
find that none of these references teach a carriage formed of
sheet metal
in which the sheet metal forming the carriage includes
a narrow bracket portion extending therefrom and having
an integrally formed, upraised, wedge-shaped element
having flat sides tapering to a thin edge for
engagement with a thread groove of the feed screw and
being formed of press-worked sheet metal, the sheet-
metal being the same sheet-metal forming the carriage
so as to form a unitary structure
as recited in Appellant’s claim 5.
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