Propellable optical fiber cable

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G02B 644

Patent

active

049765191

ABSTRACT:
An optical fibre cable comprises an inner sheath containing at least one optical fibre member, and an outer sheath containing the inner sheath. The inner sheath is of a material which is soft and has a low modulus of elasticity. The outer sheath of a material having bulk properties, such as density and stiffness, and surface properties, such as surface texture and friction such that the cable can be propelled along a duct by a flow of air travelling along the duct. An intermediate sheath may be provided between the inner and outer sheaths.

REFERENCES:
patent: 4143942 (1979-03-01), Anderson
patent: 4641916 (1987-02-01), Oestreich et al.
patent: 4740053 (1988-04-01), Cassidy
patent: 4770489 (1988-09-01), Saito et al.
Proceedings of the 27th International Wire and Cable Symposium (Nov. 14-16, 1978).
Principles of Fibre-Optical Cable Design (Proceedings of the IEE, vol. 123, No. 6, Jun. 1976).

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