Optical waveguides – Optical transmission cable – Loose tube type
Reexamination Certificate
2005-04-05
2005-04-05
Bovernick, Rodney (Department: 2874)
Optical waveguides
Optical transmission cable
Loose tube type
C385S113000, C385S123000
Reexamination Certificate
active
06876799
ABSTRACT:
The present invention adds a gel-swellable layer in fiber optic cables to aid in protecting the fibers within the cable. The gel-swellable layer can be placed on the fibers, individual ribbons, stacks of ribbons and on the inner surface of tubes by various methods, such as co-extrusion, and can be cured by either heat curing or UV curing. The gel-swellable layers of this invention can be either smooth or textured. When the fibers are placed into the tubes and the tubes are filled with the water resistant gel, the gel-swellable layer absorbs some of the gel causing it to “swell”. As a result of the “swelling” a certain volume of gel is absorbed by the layer, thus reducing the capability of the gel to flow at elevated temperatures.
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Nechitailo Nicholas V.
Risch Brian
Rossi Michael T.
Alcatel
Bovernick Rodney
Pak Sung
Sughrue & Mion, PLLC
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