Gas pressure tight optical cables

Details Gas pressure tight optical cables Gas pressure tight optical cables

1979-08-13

1982-01-26

Corbin, John K.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

174 23R, G02B 516, H02G 1520

Patent

active

043125654

ABSTRACT:
An optical communication cable structure having a longitudinally gas-impermeable cable core surrounded by an inner sheath, an intermediate layer and an outer sheath with the intermediate layer being bonded to the inner and outer sheath. The intermediate layer is comprised of a simple or crossed spinning of yarn, such as an aramide yarn, which is wound about the cable core with a given length of lay approximately corresponding to the diameter of the cable core and at select spaced apart cable length intervals the yarn is wound with a substantially shortened length of web lay relative to the given length of cable lay, to define space-free pressure windings compressing the core at such select intervals. With this type of an arrangement, inflation of the inner sheath and occurrence of longitudinal gas channels extending along the length of the cable core is avoided.

REFERENCES:
patent: 2004004 (1935-06-01), Knoderer
patent: 2795640 (1957-06-01), Crandall
patent: 3539409 (1970-11-01), Stone
patent: 4072400 (1978-02-01), Claypoole
patent: 4076382 (1978-02-01), Oestreich

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