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Fiber optic cable with bend preference

  • US 9,081,163 B2
  • Filed: 04/29/2014
  • Issued: 07/14/2015
  • Est. Priority Date: 01/20/2012
  • Status: Active Grant
First Claim
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1. A fiber optic cable, comprising:

  • a polymeric jacket defining an outer periphery and a cavity interior thereto, wherein the cavity is elongate, and wherein the outer periphery is polygonal;

    an optical fiber positioned within the cavity of the jacket;

    a first longitudinal strength element embedded in the jacket; and

    a second longitudinal strength element embedded in the jacket on an opposite side of the cavity from the first strength longitudinal member,wherein the first and second longitudinal strength elements define a bend axis of the cable passing through the strength elements that is orthogonal to the length of the cable, whereby the bend axis and the length of the cavity define a preferential plane for bending, wherein the cable resists bending about a third axis that is orthogonal to the length of the cable and also orthogonal to the bend axis, whereby the third axis and the length of the cable define a non-preferential plane for bending;

    wherein the cable resists bending in the non-preferential plane by no more than five times as much as the cable resists bending in the preferential plane.

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