S-Z stranded optical cable with optimized short ROL pitch

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United States of America Patent

PATENT NO 6049648
SERIAL NO

09140386

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Abstract

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Loose tube fiber optic cable containing a core of S-Z stranded strands comprising optical fibers having first and second alternatively repeating first and second sections, and a sheath circumscribing the core. The ROL transition points defined by the junctures of first and second strand sections along the length of the cable have been provided at an optimized reduced distance therebetween that is approximately 1/2 of the longitudinal length of the sheath entry window created during mid-span entry of the loose tube fiber optic cable. Thus, at least one (1) ROL transition point will be located within the sheath entry window during mid-span entry access to the cable, and most suitably either two (2) or three (3) ROL transition points will be located.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO ELECTRIC LIGHTWAVE CORPORATION78 ALEXANDER DRIVE RESEARCH TRIANGLE PARK NC 27709

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beasley, Jr William E Durham, NC 6 120
Roskam, Natalie Raleigh, NC 1 8
Stokes, Stephen R Raleigh, NC 7 441
Tanaka, Takashi Kamakura, JP 320 3377

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