Appeal No. 96-0632
Application 08/131,376
resin, a disk-shaped recording medium rotatably received within
said cartridge case, and a shutter for slidably opening and
closing a window formed in said cartridge case, the improvement
wherein said upper and lower shells each include a plurality of
ribs respectively extending substantially symmetrically with
respect to each other with a central line therebetween, said
central line intersecting a rear edge of said case, said upper and
lower shells having distortion stresses in a rear edge portion of
each of said upper and lower shells before said upper and lower
shells are combined together due to said ribs, said rear edge
portions of said upper and lower shells bow toward the opposing
shell, wherein formation of a gap between said upper and lower
shells along said rear edge is inhibited when said upper and lower
shells are combined together, wherein said ribs comprise two end
portions of a side wall rib extending along said rear edge of said
case, and further wherein a thickness of said two end portions of
said side wall rib is greater than a thickness of said center
portion of said side wall rib.
The references relied upon by the examiner as evidence of
obviousness are:
Iwamoto et al. (Iwamoto) 4,814,927 Mar. 21,
1989
Muehlhausen et al. (Muehlhausen) 4,943,880 Jul. 24,
1990
Ikebe et al. (Ikebe) 5,081,556 Jan. 14,
1992
Appealed claims 1, 5 and 7 are rejected under 35 U.S.C. § 103
as unpatentable over Iwamoto.
Appealed claim 8 is rejected under 35 U.S.C. § 103 as
unpatentable over Iwamoto in view of Muehlhausen and Ikebe.
The respective positions of the examiner and the appellant
with regard to the propriety of these rejections are set forth in
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