Electricity: conductors and insulators – Overhead – Towers – poles or posts
Reexamination Certificate
2006-05-23
2006-05-23
Estrada, Angel R. (Department: 2831)
Electricity: conductors and insulators
Overhead
Towers, poles or posts
C174S068100, C174S068300, C052S220100, C052S220700
Reexamination Certificate
active
07049508
ABSTRACT:
A flexible conduit that forms a raceway for cables and wires is provided. The flexible conduit includes a generally flat strip extending along an axis and a first plurality of hinges in the strip. Each of the first plurality of hinges is generally parallel to the axis such that the strip is foldable along the first plurality of hinges between a first open configuration and a second closed configuration wherein the strip of material defines the raceway. A second plurality of hinges, spaced along the axis, is also provided in the strip. Each hinge of the second plurality of hinges extends along a corresponding hinge axis generally perpendicular to the axis of the strip such that the strip is foldable along the second plurality of hinges between the first open configuration and a second folded configuration.
REFERENCES:
patent: 3761603 (1973-09-01), Hays et al.
patent: 4463046 (1984-07-01), Hutchison et al.
patent: 5814767 (1998-09-01), Katz
patent: 6380484 (2002-04-01), Theis et al.
patent: 6476323 (2002-11-01), Beebe et al.
Bushey Bret L.
Bushey Richard D.
Boyle Fredrickson Newholm Stein & Gratz S.C.
Estrada Angel R.
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