Appeal No. 1999-1565
Application No. 08/494,227
6 7
claim calls for an adapter plate and a nozzle plate disposed
adjacent and in contact with the front face of the adapter
plate, with the adapter plate openings in registry with ink 8
chamber openings in the front face of the assembly and the
nozzle apertures.
We agree with Appellants that the Suzuki plate type
actuators are more compact than a printhead employing tubular
piezoelectric elements which surround the ink channel. In
addition, in Kattner it is apparent that the spacings imposed
by the outer diameter of the piezoelectric tubes surrounding
the channels limit size minimization of the head. Thus,
Examiner's assertion that the channel plate 4 Kattner is used
to provide a more compact head is correct, however the
assertion that it would therefore fulfill the compact ink jet
head objective of Suzuki, is not well taken. We find as
Appellants contend, that if one employs the Suzuki planar
plate-like structure, the nozzle openings are then already
much more closely spaced together than is possible in Kattner,
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