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AssigneeNKF Kabel B.V.
InventorsWillem Griffioen, Arie Van Wingerden, Cornelis Van 'T Hul, Pieter Lock, Willem Greven, Frans Robbert Bakker
Estimating the term…
A filling body is inserted together with a loose bundle of guide tubes during installation into the passage space of a protective duct, thus enlarging the bundle diameter (which reduces the buckling risk) and making crossing of the guide tubes impossible. The guide tubes are positioned along the outside of the filling body, providing access to the guide tubes during post-installation branching. The filling body may include radially projecting spacer ribs that separate the guide tubes, thereby preventing crossing movement and helical stranding. The guide tubes are thus constrained and carried along with the filling body in alignment with the spacer ribs, so that buckling, helical stranding and three-dimensional restrictions or tangles cannot occur.
In a bundle including a plurality of guide tubes or cable elements loosely arranged for installation into the passage space of a protective duct, in which bundle installation is assisted at least in part by introducing a fluid under pressure into the passage space and flowing pressurized fluid in contact with the bundle during installation, the improvement comprising an elongated filling body loosely associated with the guide tubes or cable elements, the filling body including projecting portions separating the guide tubes or cable elements and opposing crossing over of the guide tubes or cable elements from one side of the filling body to the other as the bundle is installed.
In a bundle including a plurality of guide tubes or cable elements loosely arranged for installation into the passage space of a protective duct, in which bundle installation is assisted at least in part by introducing a fluid under pressure into the passage space and flowing pressurized fluid in contact with the bundle during installation, the improvement comprising an elongated partition member disposed in side-by-side loose bundle relation with the guide tubes or cable elements, the partition member including radially projecting, circumferentially spaced portions partitioning the duct passage space into a plurality of channels in which the guide tubes or cable elements are disposed as the bundle is installed.
Dependencies are inferred from the claim text.