Underground electrical cable with temperature sensing means

Optical waveguides – Optical transmission cable – With electrical conductor in the same cable

Reexamination Certificate

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C385S109000, C385S113000, C174S1020SP, C174S1020SP, C174S11000P, C174S1100PM, C174S112000, C174S1170FF

Reexamination Certificate

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07085457

ABSTRACT:
An electrical cable having a holding member arranged within the cable for an optic fiber, which can be used for temperature sensing and/or communications. The holding member can replace one or more strands of the cable, be placed inside an interstice of the cable, be placed in between various layers of the cable, or placed in the jacket of the cable. At least one strength member may be adjacent to and/or attached to the holding member to provide additional protection for the optic fiber.

REFERENCES:
patent: 4852965 (1989-08-01), Mullin et al.
patent: 4952020 (1990-08-01), Huber
patent: 5029974 (1991-07-01), Nilsson
patent: 5651081 (1997-07-01), Blew et al.
patent: 5696863 (1997-12-01), Kleinerman
patent: 5917977 (1999-06-01), Barrett
patent: 5991479 (1999-11-01), Kleinerman
patent: 6049647 (2000-04-01), Register et al.
patent: 6072928 (2000-06-01), Ruffa
patent: 6236789 (2001-05-01), Fitz
patent: 2005/0078922 (2005-04-01), Sanders et al.

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