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All-dielectric, self-supporting, loose-tube optical fiber cable

  • US 7,295,735 B2
  • Filed: 02/02/2004
  • Issued: 11/13/2007
  • Est. Priority Date: 02/19/2003
  • Status: Expired due to Fees
First Claim
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1. An ADSS (All-Dielectric Self-Supporting) optical cable comprising:

  • a central tensile member extended in a longitudinal direction;

    at least one optical fiber for transmitting an optical signal;

    at least one tubular buffer receiving the at least one optical fiber therein and arranged around the central tensile member adjacently, the at least one tubular buffer being twisted on the center of the central tensile member;

    an inner sheath extended in the longitudinal direction surrounding the at least one tubular buffer;

    an outer tensile member having the form of a substantially cylindrical sheet extended in the longitudinal direction surrounding the inner sheath; and

    an outer sheath extended in the longitudinal direction surrounding the outer tensile member;

    wherein the outer tensile member includes;

    a plurality of tensile wires extended in the longitudinal direction in parallel without intentional twisting on the central tensile member,each tensile wire having a longitudinal axis, the respective longitudinal axes each lying substantially in the same cylinder; and

    a thermosetting adhesive resin for connecting the tensile wires adjacent to each other,wherein the thermosetting adhesive resin permeates the spaces between the wires such that any broken wires effectively remain combined together,wherein the outer tensile member is configured so that the plurality of tensile wires arranged in parallel without intentional twisting are soaked in the adhesive resin.

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