Armored Fiber Optic Assemblies and Methods of Forming Fiber Optic Assemblies
First Claim
Patent Images
1. An armored fiber optic assembly, comprising:
- a fiber optic assembly having at least one optical fiber and a jacket; and
a single layer dielectric armor surrounding the fiber optic assembly and having an inner surface and an outer surface, the dielectric armor having an armor profile with an outside diameter, whereinthe outer surface of the dielectric armor defines the outer surface of the armored fiber optic assembly, andthe inner surface of the dielectric armor contacts the jacket.
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Abstract
Cables have dielectric armor with an armor profile that resembles conventional metal armored cable. The armor can be formed as a single layer, without requiring an outer jacket layer. The dielectric armor provides additional crush and impact resistance for the optical fibers and/or fiber optic assembly therein. The armored cables recover substantially from deformation caused by crush loads. Additionally, the armored fiber optic assemblies can have any suitable flame and/or smoke rating for meeting the requirements of the intended space. The assemblies can additionally be lightweight and relatively inexpensive to manufacture.
70 Citations
26 Claims
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1. An armored fiber optic assembly, comprising:
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a fiber optic assembly having at least one optical fiber and a jacket; and a single layer dielectric armor surrounding the fiber optic assembly and having an inner surface and an outer surface, the dielectric armor having an armor profile with an outside diameter, wherein the outer surface of the dielectric armor defines the outer surface of the armored fiber optic assembly, and the inner surface of the dielectric armor contacts the jacket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An armored fiber optic assembly, comprising:
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a fiber optic assembly having at least one optical fiber and a jacket; and a single-layer dielectric armor surrounding the fiber optic assembly, the dielectric armor consisting essentially of a rigid PVC layer with an armor profile and a continuous annular cross-section, the PVC layer having a tensile modulus of at least 300,000 psi, wherein the jacket contacts the dielectric armor. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. An armored fiber optic assembly, comprising:
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a fiber optic assembly having at least one optical fiber; and a single-layer dielectric armor surrounding the fiber optic assembly, the dielectric armor comprising a dielectric layer with an armor profile and a continuous annular cross-section, wherein the jacket contacts the dielectric armor, and the armor profile has a pitch P between about 5 millimeters and about 30 millimeters and a groove length that is between about 20 percent and 80 percent of a pitch P. - View Dependent Claims (23, 24)
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25. An armored fiber optic assembly, comprising:
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a fiber optic assembly having at least one optical fiber and a jacket; and a single layer dielectric armor of continuous annular cross-section surrounding the fiber optic assembly and having an inner surface and an outer surface, the dielectric armor having an armor profile with an outside diameter in the range of 7-15 millimeters and a Shore D Hardness in the range of 55-64, wherein the armored fiber optic assembly has a median separation in the range of about 0.1 - 1.5 millimeters between the fiber optic assembly and an interior surface of the dielectric armor, the outer surface of the dielectric armor defines the outer surface of the armored fiber optic assembly, and the inner surface of the dielectric armor contacts the jacket. - View Dependent Claims (26)
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Specification