Patent · US Expired

Optical fiber cable and a method of fabricating the cable

US6647186B2 · kind B2 · utility

0Cited by
4References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 20, 2001
Grant dateNov 11, 2003
Priority date—
Expiry dateOct 1, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/4483
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

The optical fiber cable includes an assembly of at least two flexible tubes accommodating optical fibers, a sheath enveloping the assembly of tubes, and at least one filamentary form strength member at the periphery of the assembly of tubes. The tubes preferably extend in the sheath in a helical or an SZ assembly. The tubes are stuck together. The sheath is preferably made of polyethylene and the tubes are preferably made of polyvinyl chloride (PVC) or a thermoplastics elastomer with diol flexible segments. In this method, when extruding the sheath around the tubes, the temperature at which the material of the sheath is extruded is adjusted to cause the tubes to stick together.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.