1989-08-11
1990-07-03
Sikes, William L.
G02B 644
Patent
active
049385607
ABSTRACT:
An animal-resistant optical fiber cable (20) includes a core (22) which comprises a transmission medium and a sheath system. The sheath system includes an outer jacket (65) and a dielectric armor (40) in the form of a shell. The shell comprises a plurality of longitudinally extending preformed segments (42--42) each having a cross section transverse to a longitudinal axis of the cable each of which covers less than half of the periphery of the core. Further, the shell segments are stranded helically about the core with at least portions of longitudinal edge surfaces of adjacent segments being in engagement with each other. The shell segments not only provide rodent protecting for the cable, but also they provide suitable tensile and compressive strength. Further, because the cable in the preferred embodiment has an all-dielectric sheath system, it is inherently lightning, corrosion and EMP resistant.
REFERENCES:
patent: 4701016 (1987-10-01), Gartside et al.
Article authored by N. J. Cogelia, et al. entitled "Rodent Biting Pressure and Chewing Action and Their Effects on Wire and Cable Sheath", which appeared beginning on p. 117 of the proceedings of the 25th International Wire and Cable Symposium held in 1976.
Article authored by R. A. Connolly & N. J. Cogelia entitled "The Gopher and Buried Cable".
Two brochures of Stratoglas, a division of Air Logistics Corp. Article authored by G. J. Beveridge, et al. entitled "Fiber Cable Wears An Extruded Jacket", published in Apr. 1985, Telephone Engineer & Management.
Arroyo Candido J.
Gagen Paul F.
Patel Parbhubhai D.
AT&T Bell Laboratories
Sikes William L.
Somers Edward W.
Wise Robert E.
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