Appeal No. 1997-1221
Application No. 08/299,591
substrate, a nonwoven fabric and a woven wire cloth. Further
details of this appealed subject matter, such as the specific
dimensions and materials of construction, are set forth in
representative independent claim 1 which reads as follows:
1. A soundproof heat shield member for an exhaust
manifold, comprising:
a metal substrate formed into a given three-dimensional
shape, the metal substrate having a thickness of 0.5-2 mm and
selected from a group consisting of steel sheet, plated steel
sheet and stainless steel sheet;
a nonwoven fabric disposed on a surface of the metal
substrate facing the exhaust manifold, the fabric comprises at
least one inorganic fiber selected from a group consisting of
ceramic fiber, glass wool, silica fiber and rock wool; and
a woven wire cloth of metal wires with an interstice of
5-100 mesh disposed on a surface of the nonwoven fabric and
fixed to the metal substrate, the metal wires selected from a
group consisting of stainless steel, brass and galvanized
steel and having a wire diameter of 0.1-1 mm.
The references set forth below are relied upon by the
examiner as evidence of obviousness:
Thompson et al. (Thompson) 4,166,878 Sep. 4,
1979
Lim 5,139,839 Aug. 18,
1992
All of the appealed claims stand rejected under 35 U.S.C.
2
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