B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
26/1
B23P 11/00 (2006.01) B23P 19/00 (2006.01)
Patent
CA 1195097
11 A b s t r a c t Method by removal of the interior parts of cables in the ground, preferably coaxial (1) and telecommunica- tion (2) cables, for the insertion of new conductors. The insulation material (3, 4) may he dissolved or broken down by means of chemical influence of e.g. xylene or copper ethylene diamin for coaxial cable (1) and telecom- munication cable (2) respectively, whereby the solution serves as a sliding agent by the withdrawal of the con- ductor/conductors (5, 6). The insulation washers (3) of a coaxial cable (1) may be melted by insertion of a heat- ing element (8) or by means of heat from electrical resi- stance in the parts (5, 7, 9) of the cable. The insula- tion washers (3) in a coaxial cable (1) and the conductors (6) with the insulation material (4) in a telecommunication cable (2) may be milled and removed. By applying electro- magnetic pressurized oscillations the insulation washers (3) of a coaxial cable (1) may be destructed. The insult- tion material (3) and the conductor (5) of a coaxial cable (1) may be removed by introducing an oscillating pressu- rized fluid with a simultaneously tension in the center conductor (5).
383696
Edvardsen Einar
Smart & Biggar
LandOfFree
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