Prysmian Cables & Systems Limited

Pirelli S.p.a.

Roger John Pike

Ralph Sutehall

John Kerry

Massimo Pizzorno

Davide Ceschiat

Martin Davies

An optical fiber unit having a sheath and a plurality of optical fiber elements loosely housed in the sheath. The sheath is coated with particles of an adherence reducing substance and has a radial thickness that is not substantially greater than 0.3 mm. The coating of adherence reducing particles is applied as a liquid coating. The liquid coating is a dispersion of the particles and heat is applied to evaporate the liquid content of the liquid coating to produce a dry coating of particles on the sheath.

Coated optical fibre unit and methods of manufacturing coated optical fibre units

An optical fibre installation includes (i) a part defining an inlet for optical fibres that has a through-hole for the passage of optical fibres and an associated mating region for a push-fit connector, (ii) an optical fibre cable connected to an adapter that defines a connection region having a predetermined cross-section for mating with a push-fit connector and (iii) a push-fit connector having a first end, a second end, a through-passage extending between those ends and a seal associated with the first end. The second end of the push-fit connector is push-fit connected to the connection region of the adapter and the first end of the push-fit connector is push-fit connected with the mating region of the inlets in such a way that the seal sealingly engages the inlet defining part. The arrangement is such that optical fibres from the optical fibre cable can be directed through the push-fit connector and the through-hold of the inlet.

Joining optical fibres

An optical fiber assembly includes: a component defining at least one inlet for optical fibers, an adapter, an optical fiber cable connected to the adapter, and a push-fit connector. The component includes a through-hole for passage of the optical fibers and an associated mating region to engage the push-fit connector. The optical fiber cable connected to the adapter defines a connection region with a predetermined cross-sectional shape for mating with the push-fit connector. The push-fit connector includes a first end, a second end, and a through-passage extending between the first and second ends. The first end is push-fit connected with the mating region. The second end is push-fit connected to the connection region. Optical fibers from the optical fiber cable can be directed through the push-fit connector and the through-hole. A method of installing optical fibers in a joint housing is also disclosed.

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Chepstow, United Kingdom

Roger John Pike