Appeal No. 2004-1879
Application No. 9/915,528
insulation material. The sheath consists of only an inner layer
and an outer layer. A particular feature of the invention is
that the values for tensile strength and elongation at break of
the inner layer are significantly lower than those of the outer
layer.
Representative claim 1 is reproduced as follows:
1. A cable with at least one transmission element,
which is surrounded by a sheath of insulation material,
wherein the sheath (M) consists of only an inner layer (3)
and an outer layer (4), which are made of materials being
firmly bonded together when the outer layer (4) is extruded
around the inner layer (3) and wherein the values for
tensile strength and elongation at break of inner layer (3)
are significantly lower than those of the outer layer (4).
The examiner relies on the following references:
Wargotz et al. (Wargotz) 3,852,518 Dec. 03, 1974
Livingston et al. (Livingston) 5,426,264 June 20, 1995
McGregor et al. (McGregor) 6,403,890 June 11, 2002
(filed July 18, 2000)
Claims 1-9 stand rejected under 35 U.S.C. § 103(a). As
evidence of obviousness the examiner offers Wargotz in view of
McGregor with respect to claims 1-3, 8 and 9, and Livingston is
added to this combination with respect to claims 4-7.
Rather than repeat the arguments of appellants or the
examiner, we make reference to the briefs and the answer for the
respective details thereof.
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