Appeal No. 1998-0453
Application No. 08/381,306
BACKGROUND
The appellants’ invention relates to a magnetic disk drive having means for
reducing disk deformation. An understanding of the invention can be derived from a
reading of exemplary claim 13, which is reproduced below.
13. A clamping structure for clamping n disks, wherein n is greater than 3,
comprising:
a spindle hub for receiving said disks and having a flange at a first
end thereof, said flange having a first protruding portion, said disks being
stacked on said first protruding portion;
n-1 spacers interposed between adjacent ones of said n disks, said
n-1 spacers including an uppermost spacer and a lowermost spacer; and
a clamp ring fixed to a second end of said spindle hub, said clamp
ring having a second protruding portion for biasing said disks toward said
flange of said spindle hub,
wherein only an outer circumference of said uppermost spacer and
an outer circumference [sic: of] said lowermost spacer include an annular
groove.
The prior art references of record relied upon by the examiner in rejecting the
appealed claims are:
Brooks et al. (Brooks) 5,006,942 Apr. 09, 1991
Brue et al. (Brue) 5,267,106 Nov. 30, 1993
2
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007