Appeal No. 1999-1889 Page 9
Application No. 08/366,988
surface contact with each other ....” Similarly,
representative claim 13 specifies in pertinent part the
following limitations: “first and second vacuum producing
materials inside the cartridge body and respectively having
first and second vacuum producing capacities respectively for
dispensing and storing ink, the first and second materials
each having one side only in surface-to-surface contact with
each other ....”
Rather than teaching two different vacuum producing
materials, the appellants’ specification discloses two
different densities of the same material, viz., “two different
density foams or foam pads for the storage of the ink.”
(Spec. at 4.) Giving the claims their broadest reasonable
interpretation in light of the specification, the limitations
require inter alia a vacuum producing material featuring at
least two different densities in surface-to-surface contact
with each other.
The applied prior art discloses the limitations.
Specifically, Koitabashi teaches “an ink container for ... ink
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