Optical cable with improved strength

Details Optical cable with improved strength Optical cable with improved strength

1987-03-17

1988-11-15

Miller, Stanley D.

G02B 644

Patent

active

047844612

ABSTRACT:
Optical cable having a central core with grooves along the outside, the grooves housing tubes containing optical fibers. The grooves are inclined to the core axis and preferably are sinusoidal in that they extend around the core in each direction while extending axially and do not complete a revolution around the core before changing direction. In preferred structures, the tubes contact around a concave base surface of the grooves or contact opposing groove walls. In addition, the tubes provide greater strength if they are in a load transmitting relationship with a metal sheath if there is one. The structure also allows for a different water blocking material to be used within the tubes than outside the tubes and within the grooves so as to satisfy different property requirements.

REFERENCES:
patent: 4361381 (1982-11-01), Williams
patent: 4401366 (1983-08-01), Hope
patent: 4408828 (1983-10-01), Le Noane et al.
patent: 4422889 (1983-12-01), Trezeguet et al.
patent: 4474426 (1984-10-01), Yataki
patent: 4661406 (1987-04-01), Gruhn et al.

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