Optical fibre with a protective covering

Details Optical fibre with a protective covering Optical fibre with a protective covering

1979-05-09

1981-11-24

Lee, John D.

Plastic article or earthenware shaping or treating: apparatus

Projection

350 9630, 425378R, G02B 5172

Patent

active

043020739

ABSTRACT:
The present invention relates to optical fibres with a protective covering for use in cables. The fibre is protected by a covering of plastic material extruded from an extruder the punch of which protrudes 0.5 to 1 mm beyond the draw plate, and rapidly cooled at the outlet of the draw plate, so that it surrounds the optical fibre with a clearance between 1 and 10 microns.

REFERENCES:
patent: 3227786 (1966-01-01), Cohen
patent: 3608138 (1971-09-01), Marcovitch
patent: 3742107 (1973-06-01), Hawkins
patent: 4116654 (1978-09-01), Trehu
patent: 4148560 (1979-04-01), Margolis
patent: 4154783 (1979-05-01), Jackson
patent: 4172106 (1979-10-01), Lewis

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