Method of and an apparatus for producing an optical multi-fiber cable element
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United States of America Patent
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Mar 3, 1992
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N/A
app pub date -
Oct 16, 1990
filing date -
Oct 20, 1989
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Expired
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Abstract
A method and apparatus for producing an optical multi-fiber cable element provided with a second sheathing by extruding a loose secondary sheathing around a fiber bundle and stretching the fibers a desired extra length with respect to the sheathing, the fibers being guided in such a manner that the position of the fibers varies continuously during stretching. To produce an untwisted cable element and avoid variation in the fiber length, the secondary sheathing together with its fiber bundle is twisted around its axis after the extrusion or the sheathing to vary the twisting position of the fiber bundle as the sheathing and fibers approach the stretching step.
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