Fiber carrying structure with rip cord and related method
AssigneeCorning Research & Development Corporation
InventorsTerry Lee Ellis, Martin Cervantes Martinez, Ellen Anderson Stupka
Life of this patent
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Abstract
An optical fiber carrying structure that includes a jacket and a rip cord is provided. Optical fiber cables are used to transmit data over distance. Generally, large distribution cables that carry a multitude of optical fibers from a hub are sub-divided at network nodes into subunits. To remove a jacket of a subunit, the subunit may be provided with an access feature such as a rip cord. Described herein is a rip cord for use with optical fiber carrying structures.
Claims20
An optical fiber cable comprising:
- an outer jacket having an outer surface defining an outermost surface of the optical fiber cable;
- an inner jacket located within the outer jacket, the inner jacket comprising a first inner surface and an outer surface, the first inner surface defining a central bore extending in a longitudinal direction between first and second ends of the jacket;
- a rip cord located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket, wherein the rip cord has a break strength less than 75 N;
- and
- an optical communication element located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket.
The optical fiber carrying structure of claim 4, wherein the rip cord has a break strength of at least 4 N and no more than 20 N.
An optical fiber carrying structure comprising:
- an outer jacket having an outer surface defining an outermost surface of the optical fiber carrying structure;
- an inner jacket located within the outer jacket, the inner jacket comprising a first inner surface and an outer surface, the first inner surface defining a central bore extending in a longitudinal direction between first and second ends of the jacket;
- a rip cord located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket, wherein the rip cord is formed from a material that has a water absorption capacity of at least 10 grams of water per gram of the material;
- and
- an optical communication element located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket.
An optical fiber cable comprising:
- an outer jacket having an outer surface defining an outermost surface of the optical fiber cable;
- an inner jacket located within the outer jacket, the inner jacket comprising a first inner surface and an outer surface, the first inner surface defining a central bore extending in a longitudinal direction between first and second ends of the jacket;
- a rip cord located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket, the rip cord has a denier less than 1000;
- and
- an optical communication element located within the central bore and extending in the longitudinal direction between the first and second ends of the jacket.
Dependencies are inferred from the claim text.