Production of optical cable

Details Production of optical cable Production of optical cable

1985-07-30

1987-02-24

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Utilizing plasma, electric, electromagnetic, particulate, or...

29825, 156 48, 156 51, 156 56, 264 15, 264174, 264285, 425113, 425391, B29D 1100, H01B 1122

Patent

active

046456287

ABSTRACT:
In the production of an optical fibre cable a core (3) of thermoplastics material is extruded with a plurality of longitudinally-extending grooves (15) in its outer surface around an electrical conductor (1) and is initially cooled: then following the introduction of one or more fibres (11) in at least one of the grooves the core assembly is passed through an induction heating unit (17) in which the conductor is heated to an extent sufficient to soften at least the adjoining region of the core, and the core is twisted to cause the grooves to take up a helical or periodically reversing helical path, and is again cooled to leave the grooves in that condition.

REFERENCES:
patent: 4205899 (1980-06-01), King et al.
patent: 4378462 (1983-03-01), Arnold et al.
patent: 4474426 (1984-10-01), Yataki
patent: 4528148 (1985-07-01), Dotti
patent: 4548567 (1985-10-01), Missont

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