Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Patent
1987-02-25
1989-02-07
Nimmo, Morris H.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductive armor or sheath
156 50, 156 51, 156 56, 174106SC, 174107, 174108, 174115, H01B 722
Patent
active
048033090
ABSTRACT:
An electrical cable with a core comprising an electrical conductor surrounded by insulation and with both a screen of wires in open helix configuration on the core and at least one other wire extending longitudinally of the core and electrically contacting the wires of the screen. An insulating sheath surrounds the screen and may itself embed the wires or it may surround a layer of extruded material which at least partially embeds the wires. The material of the layer may be insulating or semi-conductive. Also, a process for manufacturing such cable.
REFERENCES:
patent: 1852127 (1932-04-01), Palmer
patent: 2133863 (1938-10-01), Knoderer
patent: 2258687 (1941-10-01), Peterson
patent: 3324233 (1967-06-01), Bryant
patent: 3927247 (1975-12-01), Timmons
patent: 4268714 (1981-05-01), Mori
patent: 4360704 (1982-11-01), Madry
patent: 4552432 (1985-11-01), Anderson et al.
patent: 4626619 (1986-12-01), Uematsu
Marin Carlo
Seveso Cesare
Nimmo Morris H.
Societaa Cavi Pirelli S.p.A.
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