초록 ▼

An optical fibre transmission line is installed by first installing a conduit having one or more bores and subsequently inserting flexible, lightweight optical fibre members containing the optical fibres into the bores. The optical fibre members are propelled by employing the fluid drag of air, or a

An optical fibre transmission line is installed by first installing a conduit having one or more bores and subsequently inserting flexible, lightweight optical fibre members containing the optical fibres into the bores. The optical fibre members are propelled by employing the fluid drag of air, or another suitable gas, passed at high velocity through the bores.

대표청구항 ▼

An optical fibre cable structure of extended length L comprising: a conduit having one or more tubular ductlets of length L disposed therewithin and said ductlets having openings only at either end of said length L and being capable of loosely accommodating at least one optical fibre member, and at

An optical fibre cable structure of extended length L comprising: a conduit having one or more tubular ductlets of length L disposed therewithin and said ductlets having openings only at either end of said length L and being capable of loosely accommodating at least one optical fibre member, and at least one optical fibre member inserted into and through an associated ductlet by propelling the fibre member from one end to the other of said ductlet using fluid drag of a gaseous medium distributed along the inserted length of said fibre member.