Wound optical fiber cable including robust component cable(s) and a system for manufacture of the cable
First Claim
1. An apparatus comprising:
- at least one component cable includingan elongated central aramid yarn member;
a plurality of individually buffered optical fibers arranged about and in contact with the aramid yarn member;
an aramid yarn layer surrounding and in contact with the buffered optical fibers; and
a plastic jacket surrounding and in contact with the aramid yarn layer.
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Accused Products
Abstract
An optical fiber cable includes one or more component cables. In one embodiment, the component cable has an elongated central aramid yarn member surrounded by at least one, and preferably six, optical fibers. An aramid yarn layer surrounds and contacts the optical fibers, and a plastic jacket envelopes and contacts the aramid yarn layer. In a second embodiment, the component cable includes optical fibers, preferably twelve in number, embedded in aramid fibers. A plastic jacket in contact with the aramid fibers, encloses the aramid fibers with its embedded optical fibers. In the cable of this invention, component cables of the first and/or second embodiments are wound about an elongated, central strength member with a reverse-oscillated lay. An outer jacket encloses and holds the reverse-oscillated lay of the component cables. The invention also includes a system for manufacturing the cables of this invention.
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Citations
28 Claims
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1. An apparatus comprising:
at least one component cable including an elongated central aramid yarn member; a plurality of individually buffered optical fibers arranged about and in contact with the aramid yarn member; an aramid yarn layer surrounding and in contact with the buffered optical fibers; and a plastic jacket surrounding and in contact with the aramid yarn layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An apparatus comprising:
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an elongated central strength member with a plurality of the component cables surrounding and in contact with the strength member; at least one component cable including aramid fibers; a plurality of individually buffered optical fibers embedded in the aramid fibers; a plastic jacket surrounding the buffered optical fibers and the aramid fibers and in contact with a portion of the aramid fibers. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A system receiving a plurality of component cables, the system comprising:
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a reverse oscillated lay (ROL) machine receiving the component cables approximately along longitudinal axes thereof, the ROL machine having a plurality of plates including an exit plate, the plates defining respective apertures through which the component cables pass, the plates oscillating about respective axes in a predetermined phase relationship to twist the component cables in ROL, the exit plate outputting the ROL component cables; an applicator containing a slick substance, the applicator receiving the ROL component cables and applying the slick substance to the ROL component cables; and a follower plate having apertures through which respective component cables pass, oscillating in phase with the exit plate of the ROL machine. - View Dependent Claims (28)
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Specification