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Ex parte NAITO - Page 2
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Board of Patent Appeals and Interferences > 1998 > Ex parte NAITO - Page 2
Appeal No. 95-2898
Application 08/053,193
application. Claims 2 though 4 and 6 through 9 have been canceled.
The invention is directed to a snap-fit hub for an
optical disk, the nature of which is apparent from a review of
representative independent claim 1, reproduced as follows:
1. An optical recording medium which is adapted to be
placed on a turn table rotatable as a unit with a spindle of an
optical disk apparatus to reproduce information on a disk surface
with an optical beam, said optical recording medium comprising:
an optical disk which has a center hole; and
a center core which fits into said center hole of said
optical disk, said center core having a bottom disk-shaped
portion; a cylindrical wall extending from said bottom disk-
shaped portion and a stopper ledge projecting outwardly from an
outside peripheral surface of said cylindrical wall and abutting
on a lower surface of said optical disk; claws formed in said
wall portion which project from said outside peripheral surface
of said cylindrical wall and which engage an upper surface of
said optical disc so as to clamp said optical disk between said
stopper ledge and said claws, and a plurality of slits formed in
said cylindrical wall for defining a first wall portion and for
rendering said first wall portion flexible so that said first
wall portion is elastically displaced radially inwards to a
deformed position to allow said center core to be attached to
said optical disk by passing said cylindrical wall and said claws
through said center hole of said optical disk until said claws
snap into position, wherein a magnetic member is attached to said
center core which is attracted by a magnet provided on said turn
table, and wherein said cylindrical wall of said center core is
divided by said slits into a plurality of first wall portions
each of which is formed with one of said claws, and a plurality
of second wall portions each of which is formed with said stopper
ledge, said first and second wall portions being alternately
arranged.
The examiner relies on the following references:
Ogusu 4,802,158 Jan. 31, 1989
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Last modified: November 3, 2007
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