Aerial optical cable and its method of manufacture

Details Aerial optical cable and its method of manufacture Aerial optical cable and its method of manufacture

1988-04-14

1989-09-26

Lee, John D.

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

57 6, 264 15, G02B 644

Patent

active

048695734

ABSTRACT:
An optical cable, especially suitable for use as an aerial cable, comprises a circumferentially rigid flexible tube which is of composite form and comprises a plurality of elongate flexible bodies helically laid up together, each of which bodies is of a cross-section approximating to a sector of an annulus and comprises extruded electrically insulating plastics material and a mulitiplicity of longitudinally stressed elongate flexible non-metallic reinforcing elements encapsulated in said plastics material, e.g. polypropylene or nylon, the multiplicity of non-metallic reinforcing elements being substantially evenly distributed throughout the cross-sectional area of the body. An outer protective non-metallic sheath surrounds the tube and at least one flexible optical guide, e.g. a separate optical fibre, optical bundle or optical fibre ribbon structure, is housed in the bore of and is movable relative to the tube.

REFERENCES:
patent: Re32436 (1987-06-01), Hartig
patent: 4078853 (1978-03-01), Kempf et al.
patent: 4153332 (1979-05-01), Longoni
patent: 4446686 (1984-05-01), Panuska et al.
patent: 4457583 (1984-07-01), Mayr et al.
patent: 4534618 (1985-08-01), Bruggendieck
patent: 4629286 (1986-12-01), Fuse et al.
patent: 4632506 (1986-12-01), Taylor
patent: 4671610 (1987-06-01), Kitayama et al.
patent: 4793685 (1988-12-01), Taylor et al.

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