Optical cable elements

Details Optical cable elements Optical cable elements

1979-12-21

1981-07-21

Corbin, John K.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

174101, G02B 516

Patent

active

042794706

ABSTRACT:
A method of manufacturing elements for an optical cable, such elements including a tube of an elastic material, e.g. a synthetic resin or an elastomer, which loosely encloses one or more optical fibers. Preferably, the fiber or fibers are longer than the enclosing tube and the tube is filled with a material which prevents the migration of water, etc. The tube in mechanically stabilized form and the optical fiber or fibers are advanced toward a traction zone where the tube is pulled. Prior to the traction zone, the tube is slit or cut longitudinally through one thickness of the wall, the cut edges are spread apart and the optical fiber or fibers are inserted into the tube through the gap between the cut edges. Optionally, filling material is also inserted into the tube through such gap or a downstream gap subsequently formed. The tube-optical fiber assembly follows a straight line downstream of traction zone to a collecting point. The tube may be tensioned downstream of the traction zone either by a pulling wheel or the collecting means. Also, apparatus for performing the method including slitting or cutting means, rectilineal traction means, collecting means and optionally, separate pulling means following the traction means.

REFERENCES:
patent: 3766307 (1973-10-01), Andrews, Jr.
patent: 3955878 (1976-05-01), Nowak
patent: 4153332 (1979-05-01), Longoni
patent: 4201607 (1980-05-01), Rautenberg et al.
patent: 4212097 (1980-07-01), Portinari et al.

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