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US 5,189,718 AGranted
Composite cable containing light waveguides and electrical conductors
AssigneeSiecor Corporation
InventorsMichael J. Barrett, Andrew S. Dodd
Life of this patent
Estimating the term…
Abstract
Disclosed is a cable in which one tube holding light waveguides is connected by a plastic web to another tube holding metallic current carrying conductors. When buried in the earth, the cable may be located by means of a magnetic field produced by the current carrying conductors, but the cable retains the advantage of the tube carrying the light waveguides being dielectric.
Claims6
A cable containing light waveguides and electrical conductors, comprising:
- (a) a first tube containing a plurality of current carrying electrical conductors;
- (b) a second tube containing at least one strength member and a plurality of light waveguides;
- and,
- (c) a web extending between the first and second tubes, said web having a thickness narrower than half the outer diameter of the first tube or the second tube.
1 more element
A cable containing light waveguides and electrical conductors, comprising:
- (a) a first tube containing a plurality of current carrying electrical conductors and a tubular metallic shield disposed between the electrical conductors and the first tube;
- (b) a second tube containing a plurality of light waveguides;
- and,
- (c) a web extending between the first and second tubes, said web having a thickness narrower than half the outer diameter of the first tube or the second tube.
1 more element
A cable containing light waveguides and electrical conductors, comprising:
- (a) a first tube containing a plurality of current carrying electrical conductors and a tubular metallic shield disposed between the electrical conductors and the first tube;
- (b) a second tube containing at least one strength member and a plurality of light waveguides;
- and,
- (c) a web extending between the first and second tubes, said web having a thickness narrower than half the outer diameter of the first tube or the second tube.
1 more element
Dependencies are inferred from the claim text.