Appeal 2007-4307
Application 10/173,095
fiber.34 The fiber is impregnated with an epoxy resin to produce a
"prepreg".35
Chee relates to noise attenuation structures for jet engines.36 Chee
illustrates a section of a
typical acoustic treatment
panel 12 in FIG. 2 (right).
A perforated outer skin 14
covers a honeycombed
core 16.37 The core 16
may be made from a
variety of materials,
including NOMEX®, an aramid fiber. The panel may have more than one
core layer arranged in a stack.38 In one embodiment, Chee employs an outer
34 Stephens 2:43-45.
35 Stephens 3:1-2.
36 Chee 1:8-20.
37 Chee 2:28-42.
38 Chee 2:42-54.
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