Appeal No. 2001-1771 3
Application No. 09/205,782
Discussion
Each of the independent claims on appeal calls for, in one form or another, a body
element being made of a material with randomly intertwined and fused filaments with
spacing between the filaments for permeation by a coolant (e.g., air), and at least one
conductor element positioned on and supported by the body element.
Adkins, the examiner’s primary reference, pertains to an absorptive electromagnetic
shielding for high speed computer applications. According to Adkins (col. 1, lines 48-51),
a primary problem with prior art shielding is that it merely reflects, rather than absorbs,
electromagnetic interference (EMI). Accordingly, a major objective of Adkins is the
provision of shielding that absorbs EMI, rather that merely reflecting it (col. 2, lines 19-21).
To this end, Adkins provides shielding components comprising a magnetically permeable
mat bonded between either two conductive sheets 401, 402 (Figure 4B) or an insulator
sheet 409 and a conductive sheet 410 (Figure 4D). These shielding components may
then be positioned in direct contact with opposite sides of a printed circuit board 406
having electronic components 407 thereon (see Figure 4C) to form a structure like that
illustrated in Figure 4A wherein the individual electronic components are shielded from
both externally generated EMI and EMI arising from the components themselves (col. 3,
lines 53-60; col. 4, lines 50-63). In addition, the upper shielding component is provided
with a fluid intake conduit 403 and the conductive sheet 402 is provided with openings 405
such that cooling fluid (typically air) may be forced through the pores of the mat and the
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