Appeal No. 2000-2146
Application No. 09/197,513
shown in figure 6. However, Guilleaume provides no shielding
structure between the pairs of insulated conductors in the
grouped strands of conductors. Additionally, we find no teaching
in Guilleaume about shielding each of the pairs of insulated
conductors using a combination of a central rod with fins and a
peripheral shield, as recited in Appellant’s claim 1.
A review of Tessier shows that the reference is concerned
with reducing capacitance unbalance and cross talk among pairs of
twisted conductors (col. 1, lines 42-45). Tessier merely teaches
a plurality of conductor pairs that are grouped together and
spacers that hold the pairs of conductors spaced apart from one
another (col. 1 line 67 through col. 2, line 10). The spacers
are integrally formed with a jacket that surrounds the grouped
pairs of conductors (col. 2, lines 31-39). Based on our findings
with regard to Tessier, we agree with Appellant that Tessier
provides no teaching or suggestion for substituting each bare
conductor of Guilleaume with a pair of conductors.
Simons, on the other hand, teaches a cable housing with an
encapsulated longitudinal tape for separating and shielding
longitudinal sections of a multiconductor cable (col. 1, lines
24-44). A metal foil is laminated with plastic films and folded
upon itself to form the longitudinal parallel compartments for
6
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