Polyurethane jacketing of metal sheathed cable

Details Polyurethane jacketing of metal sheathed cable Polyurethane jacketing of metal sheathed cable

1975-03-17

1976-09-14

Grimley, Arthur T.

Electricity: conductors and insulators

Conduits, cables or conductors

Conductive armor or sheath

174102D, H01B 718

Patent

active

039808076

ABSTRACT:
A method of jacketing an electric cable having a corrugated metal sheath, in which the sheath is cleaned, a coating of thermosetting, castable polyurethane is applied to fill the troughs in the corrugations, a fabric is wrapped onto the coated sheath and coated with the same polyurethane, and thermoplastic polyurethane is extruded onto the cable to form a jacket. The coatings of the polyurethane serve as an adhesive for bonding the jacket to the metal sheath. A cable produced by this method comprises a layer of fabric circumscribing the corrugated metal sheath and a jacket of thermoplastic polyurethane overlying the sheath, the fabric being embedded in a layer of thermosetting, castable polyurethane bonding the jacket to the sheath.

REFERENCES:
patent: 2492568 (1949-12-01), Gillis
patent: 3007203 (1961-11-01), Ammons
patent: 3479621 (1969-11-01), Martin
patent: 3484539 (1969-12-01), Glander et al.
patent: 3745232 (1973-07-01), Johnson et al.
patent: 3857996 (1974-12-01), Hansen et al.
patent: 3894172 (1975-07-01), Jachimowicz

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