Appeal 2007-2888
Application 11/017,602
Findings of Fact
The Yoerkie patent
11. According to Yoerkie, one “of the major passenger complaints with
aircraft travel is noise within the cabin section” (Yoerkie, at col. 1, ll. 12-13;
Answer 5).
12. To address this problem, Yoerkie describes an improved sound
absorbing blanket for reducing noise (Yoerkie, at col. 2, ll. 61-63; Answer
5).
13. “The blanket includes a mass barrier portion” (Yoerkie, at col. 2, l. 67 to
col. 3, l. 1). “The mass barrier portion 12 preferably includes a plurality of
overlapping vinyl layers 16. Each layer is preferably made from . . . vinyl
which is mass loaded with barium sulfate powder” (Yoerkie, at col. 4, ll. 26-
29; Answer 6).
14. The blanket “is intended to be attached to or disposed between the
frames, beams and skins of the helicopter and the cabin interior trim panels”
(Yoerkie, at col. 4, ll. 20-24; Answer 6).
15. “In one embodiment of the invention, the foam portion [of the blanket] is
attached to the mass barrier portion with an adhesive. In a second
embodiment of the invention the foam portion is mounted to the aircraft
separate from the mass barrier portion” (Yoerkie, at col. 3, ll. 20-24).
The Allen patent
16. Allen describes a sound barrier comprising filler materials, such as
barium sulfate (Allen, at col. 4, ll. 60 to col. 5, l. 3; Answer 6-7).
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