Appeal No. 97-2881
Application No. 08/387,166
interconnection box to a wall. The shield includes a pair of
conductive layers supported on a substrate and separated by a
non-conductive layer. The two conductive layers are adapted
to be short circuited together in the event of an intrusion
attempt thereby completing an electrical circuit to trigger an
alarm.
Claim 1 is the only independent claim on appeal, and it
reads as follows:
1. A passive electrical shield for securing an exterior
telephone service line and interconnection box, without an
armored casing, said shield comprising:
a non-conductive, non-armored substrate sized and
configured to essentially fully enclose the telephone service
line and interconnection box, said substrate being in the form
of an enclosure having an opening at one front side thereof
and its bottom;
a pair of conductive layers supported on said substrate
and separated by a non-conductive layer;
terminal means for connecting said conductive layers to
an alarm; and
means for securing said electrical shield to an exterior
wall of a building with said front opening opposing said wall
whereby said telephone service line and interconnection box
are essentially fully encased therein; and wherein said
conductive layers are adapted to be short circuited together
in the event of an intrusion attempt thereby completing an
electrical circuit whereby said alarm will be triggered.
The references relied on by the examiner are:
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