Abrading – Machine – Stationary tool
Patent
1998-04-01
1999-12-28
Eley, Timothy V.
Abrading
Machine
Stationary tool
451552, 451319, 451344, B24B 2100
Patent
active
060074132
ABSTRACT:
Midspan access to selected optical fibers which are encapsulated in an optical ribbon or tube is achieved by placing the desired span of the encapsulated fibers to be accessed between opposing abrasive layers and controllably urging at least one of the abrasive layers in the direction of the opposing abrasive layer to cause both abrasive layers to contact the encapsulant which covers the fibers. The amount of force applied to the at least one abrasive layer is limited by the structure of a resilient element which is coupled to the abrasive surface. Stress concentrators are created in the encapsulant and the encapsulant is removed from the span portion by relative movement of the encapsulated fibers and the abrasive layers. A minimum separation distance between the opposing abrasive layers can be defined, according to the thickness of the specific encapsulated fiber medium undergoing fiber separation, to avoid contact between the abrasive surfaces and the fibers within the medium. Access to the individual fibers is provided after the stress concentrators are formed in the encapsulant or encapsulant in the desired span portion has been substantially removed.
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William E. Beasley, "Meeting The Demands Of The Local Loop With Improved Ribbon Fiber Midspan Access," 1994 NFOEC Conference, pp. 401-409.
Brooks L. P.
Eley Timothy V.
Nguyen Dung Van
Pirelli Cable Corporation
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