Electricity: conductors and insulators – Conduits – cables or conductors – Buoyant
Patent
1978-02-08
1978-08-29
Truhe, J. V.
Electricity: conductors and insulators
Conduits, cables or conductors
Buoyant
174115, 174116, H01B 712, H01B 1118
Patent
active
041105540
ABSTRACT:
A flexible, high load bearing, electrically conductive buoyant tether cable includes a center stress core having a plurality of jacketed stress bearing members which are in turn enclosed within a plastic-like core jacket. Seven conductor elements are cabled around the core, including three pairs of conductor elements and a jacketed coaxial cable. Each of the conductor element pairs includes a core, five twisted pairs of individually insulated, electrically conductive wires cabled around the conductor element core and a conductor tape binder surrounding the cabled pairs of wires. The conductor elements are cabled around the center stress core and are themselves enclosed by an outer tape binder and jacket. A plurality of intersticial stress members occupies a portion of the corresponding interstices between the cabled conductor elements and the outer tape binder. The interstices within the central stress bearing elements remain hollow for buoyancy while all other interstices within the tether cable are substantially filled with thin walled, hollow glass microspheres for increased buoyancy of the cable which tends to prevent the collapse of the cable from pressure when used in deep water operations.
REFERENCES:
patent: 3023267 (1962-02-01), Rubenstein et al.
patent: 3433890 (1969-03-01), Gabriel et al.
patent: 3483313 (1969-12-01), Schaffhauser
patent: 3517110 (1970-06-01), Morgan
patent: 3699237 (1972-10-01), Melia
patent: 3843568 (1974-10-01), Woodland et al.
Kendall, Jr. Clarence E.
Moore Boyd B.
Bouchard John H.
Custom Cable Company
Truhe J. V.
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