Appeal 2007-4307
Application 10/173,095
The examiner notes29 that a microporous sheet 20 (which may be woven
stainless steel) is bonded to a perforate sheet 22 (which may be graphite
fiber reinforced plastic). The bonding may be achieved with an adhesive,
which may be in the form of a reticulated film.30 Riel provides a similar
disclosure for bonding between honeycombed cores 10, 12 (which may be
fiberglass-reinforced phenolic resin) and an inner microporous layer 18
(which may also be woven stainless steel). This adhesive may also be a
reticulated film and is said to provide a mechanical interlock between the
layers.31
Stephens relates to acoustic energy absorbing structures, including
ones for use with aircraft engines, and their manufacture.32 Stephens FIG. 3
(below) illustrates a typical acoustic panel 50 with a honeycomb body
section 54, an open triaxial-weave face sheet 56, and a microporous layer 58
that is preferably woven stainless steel.33 The face sheet 56 is woven carbon
29 Ans. 5.
30 Riel 3:14-22, 3:58-66, and 4:5-9.
31 Riel 2:65-3:15, 3:29-36, and 5:57-6:5.
32 Stephens 1:7-21.
33 Stephens 4:13-26.
8
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