Dielectric optical fiber cables which are magnetically locatable
First Claim
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1. An optical fiber cable, which includes:
- a core comprising at least one optical fiber transmission medium;
a tubular member in which is disposed said core and which is made of a plastic material;
a sheath system which is disposed about said tubular member and includes a plurality of longitudinally extending strength members wherein at least one of the strength members is treated with a magnetically locatable material and wherein the magnetically locatable material generates a detection signal which is distinguishable from that generated by a solid metallic pipe.
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Abstract
The present invention provides a dielectric optical fiber cable which is capable of being remotely detected while buried. Specifically, this invention incorporates magnetic materials into existing elements of high strength sheath systems which are commonly used to enhance the tensile properties of many optical fiber cables. Embodiments of the present invention include various configurations of strength member systems each comprising a plurality of longitudinally aligned glass roving or yarns which have neodymium iron boron compounded into an epoxy matrix.
52 Citations
9 Claims
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1. An optical fiber cable, which includes:
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a core comprising at least one optical fiber transmission medium; a tubular member in which is disposed said core and which is made of a plastic material; a sheath system which is disposed about said tubular member and includes a plurality of longitudinally extending strength members wherein at least one of the strength members is treated with a magnetically locatable material and wherein the magnetically locatable material generates a detection signal which is distinguishable from that generated by a solid metallic pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification