Nova Patents
EP0342855A3

Animal-resistant cable

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 an arcuately shaped cross section transverse to a longitudinal axis of the cable and each comprising glass fibers embedded in a matix material. Each of the segments covers less than half of the periphery of the core and, in a preferred embodiment, eight segments are used. Further, the shell segments are stranded helically about the core with longitudinal edge surfaces of adjacent segments being in engagement with each other. The shell segments not only provide rodent protection for the cable, but also they provide suitable tensile and compressive strength. Further, because the cable has an all-dielectric sheath system, it is inherently lightning, corrosion and EMP resistant.

Term

Term ended

Projected expiry passed 10 May 2009, 17.4 years ago.

  1. Priority
  2. Filed
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  4. Projected expiry
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Every citation, both ways

Citations
DocumentRelationOfficeCategoryCited during
EP0248221A2CitesEuropean Patent Office (EPO)YSearch report
DE3502042A1CitesGermanyYSearch report