Conduit insert for optical fiber cable

G - Physics – 02 – B

Patent

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Details

G02B 6/44 (2006.01) G02B 6/50 (2006.01) H02G 9/06 (2006.01)

Patent

CA 2384067

A flexible innerduct structure (10) is configured to contain a cable within a conduit. The innerduct structure includes a pair of adjacent strip-shaped layers of flexible material (20, 22) that are joined along their longitudinal edges (24) to define a channel (14) through which the cable can extend longitudinally through the innerduct structure between the layers. The adjacent layers have differing widths between their longitudinal edges, whereby the wider layer bulges away from the narrower layer to impart an open configuration to the channel. Other features of the innerduct structure relate to the material of which it is formed. Such features include the structure of the material, such as a woven structure, and further include properties such as melting point, tensile strength, elongation, coefficient of friction, crimp resistance and compression recovery.

L'invention concerne une structure intratubulaire flexible (10), destinée à recevoir un câble dans un conduit. La structure intratubulaire comprend une paire de couches adjacentes d'un matériau flexible (20, 22) en forme de bandes, assemblées le long de leurs bords longitudinaux (24) de façon à définir un canal (14) à travers lequel le câble peut se déployer longitudinalement dans la structure intratubulaire entre les couches. Les couches adjacentes présentent des largeurs différentes entre leurs bords longitudinaux, la couche la plus large se replie de la couche la plus étroite afin de donner au canal une configuration ouverte. D'autres caractéristiques de la structure intratubulaire concernent sa matière. Parmi ces caractéristiques figurent la structure de la matière, telle qu'une structure tissée, ainsi que certaines propriétés, telles que le point de fusion, la résistance à la traction, l'allongement, le coefficient de friction, la résistance à l'ondulation et la récupération suite à la compression.

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