Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Patent
1995-07-26
1998-11-03
Kincaid, Kristine L.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductive armor or sheath
174110R, 174 36, H01B 718, H01B 902
Patent
active
058312153
ABSTRACT:
A high frequency coaxial cable (1) contains a concentric internal conductor (3), a cylindrical insulating layer (7) surrounding the internal conductor (3) and made of a foamed plastic containing more than 50% by volume of air, a tubular external conductor (9) placed over the insulating layer (7), and an outer sheath (11). Cutouts (15, 15') are made in the insulating layer (7) by removing insulation material starting at the periphery (13) of the insulating layer and extending radially inward. These cutouts (15, 15') make it possible to increase the dielectric properties of the insulating layer between internal conductor (3) and external conductor (9).
REFERENCES:
patent: 2845473 (1958-07-01), Doherty
patent: 3688016 (1972-08-01), Spade
patent: 3783180 (1974-01-01), Spicer
patent: 5210377 (1993-05-01), Kennedy et al.
patent: 5230260 (1993-07-01), Bell
patent: 5423884 (1995-06-01), Nyman et al.
Fischer Horst
Ziemek Gerhard
Alcatel Kabel AG & Co.
Kincaid Kristine L.
Nguyen Chau N.
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