Optical cable manufacture

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G02B 644

Patent

active

047639822

ABSTRACT:
An optical cable having at least one optical fiber in its core, the fiber surrounded by a crush resistant tube. The fiber is loosely contained within the tube which comprises longitudinally extending closely packed tensile filaments embedded in a continuous solidified and rigid carrier. The carrier material is preferably an epoxy resin. A water blocking medium may fill the tube. The tube is made by covering the tensile filaments in the carrier material in a flowable state, guiding the coated filaments through a tubular space so as to fill it and causing solidification of the carrier inside the tubular space. The optical fiber is passed through a tubular guide which defines the inner surface of the tubular space so as to lie within the formed tube.

REFERENCES:
patent: 4113349 (1978-09-01), Stiles
patent: 4172106 (1979-10-01), Lewis
patent: 4269024 (1981-05-01), Ashpole et al.
patent: 4288144 (1981-09-01), Nakai et al.
patent: 4331379 (1982-05-01), Oestreich et al.
patent: 4367917 (1983-01-01), Gray
patent: 4372792 (1983-02-01), Dey et al.
patent: 4414165 (1983-11-01), Oestreich et al.
patent: 4508423 (1985-04-01), Winter et al.

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