Optical waveguides – Optical transmission cable – Loose tube type
Reexamination Certificate
2008-04-15
2008-04-15
Font, Frank G. (Department: 2883)
Optical waveguides
Optical transmission cable
Loose tube type
C385S100000, C385S103000, C385S109000
Reexamination Certificate
active
10545407
ABSTRACT:
Disclosed is a loose tube optical cable having an unstranded structure, which includes a tensile strength member longitudinally elongated and having a central axis deviated from the center of the optical cable, a loose tube optical fiber unit longitudinally elongated without intended twist against the tensile strength wire, and a cable coating for wrapping an aggregation in which the tensile strength member and the loose tube optical fiber unit are straightly aggregated. By suitably selecting geometric parameters of the tensile strength member and the loose tube optical fiber unit, the center of mass of the aggregation is positioned within the tensile strength member and the maximum modulus of elongation of the optical fiber is restricted within a predetermined range in a predetermined bending radius.
REFERENCES:
patent: 6115522 (2000-09-01), Tachikura et al.
patent: 6249629 (2001-06-01), Bringuier
patent: 2003/0091307 (2003-05-01), Hurley et al.
patent: 2003/0118300 (2003-06-01), Seddon et al.
patent: 03-141132 (1998-06-01), None
patent: 10-003020 (1998-06-01), None
patent: 10-160985 (1998-06-01), None
Kim Tae-Gyoung
Son Min
Font Frank G.
Jones Day
Lam Hung
LS Cable Ltd.
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