Hybrid cable with low density filling compound
AssigneeSuperior Essex International LP
InventorsChristopher W. McNutt, Robin D. Gainsford
Life of this patent
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Abstract
A hybrid or composite cable may include a core component and a plurality of buffer tubes positioned around the core component. The core component may include a plurality of insulated conductors and a filling compound positioned between and around the plurality of insulated conductors. The filling compound may have a density of less than approximately 0.70 g/cm3 and may further include a plurality of microspheres. Each of the plurality of buffer tubes may be configured to house at least one optical fiber. Additionally, a jacket may be formed around the core component and the plurality of buffer tubes.
Claims20
A cable, comprising:
- a core component comprising:
- a plurality of insulated conductors;
- and
- a filling compound positioned between and around the plurality of insulated conductors, the filling compound having a density less than 0.70 g/cm3 and a critical yield stress of at least 30 Pa, the filling compound comprising a plurality of microspheres;
- a plurality of buffer tubes positioned around the core component, each of the plurality of buffer tubes configured to house at least one optical fiber;
- and
- a jacket formed around the core component and the plurality of buffer tubes.
A cable, comprising:
- a core component comprising:
- a plurality of insulated conductors;
- and
- a filling compound positioned between and around the plurality of insulated conductors, the filling compound having a density less than 0.70 g/cm3 and a critical yield stress of at least 30 Pa, the filling compound comprising a plurality of microspheres, wherein the critical yield stress of the filling compound rises between 0.15 and 0.50 Pa for every 10° C. rise in temperature between 20° C. and 80° C.;
- a plurality of buffer tubes positioned around the core component, each of the plurality of buffer tubes configured to house at least one optical fiber;
- and
- a jacket formed around the core component and the plurality of buffer tubes.
A cable, comprising:
- a plurality of insulated conductors;
- a filling compound positioned between and around the plurality of insulated conductors, the filling compound having a density less than 0.70 g/cm3 and a critical yield stress of at least 30 Pa, the filling compound comprising a plurality of microspheres;
- a jacket formed around the plurality of insulated conductors and the filling compound.
Dependencies are inferred from the claim text.