Prysmian Cables & Systems Limited

Paul Hubbard

Ian George Griffiths

Malcolm Jones

George Hines

A cable loop device for use in optical systems may have a front side and a reverse side and may include at least one work area, at least one fiber storage area arranged on the front side, at least one cable storage area disposed on a periphery of the cable loop device, and a guide track configured to route at least one optical fiber between the front side and the reverse side. An optical joint may include one or more base ports disposed through a base of the optical joint and at least one cable loop device mounted within the optical joint. An optical network may include one or more optical cables and at least one optical joint.

Cable loop device for optical systems

A pressure relief valve for blown fiber closures is provided having constituent components fabricated from plastic. An adaptor is provided for connection to a blown fiber closure, and a body welded to this adaptor, is provided to enclose a piston and a spring within, such that they are protected from the ingress of silt and water. The piston is arranged to provide a double seal such that a pressure relief valve plug and an opening in the enclosing body are closed or opened simultaneously to prevent the ingress of silt and/or water on the one hand and the unhindered escape of pressurized fluid on the other.

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Eastleigh, United Kingdom

Paul Hubbard