Electric cable

Details Electric cable Electric cable

1978-12-08

1980-12-09

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With fluid stops

106 33, 252 72, H01B 728

Patent

active

042386381

ABSTRACT:
An electric cable having a core made of insulated conductors disposed within a polymeric sheath. Voids within the core, between the conductors, are at least partially filled in the unused cable with a mixture comprising untreated calcium carbonate and a water-attracting polymer able to form a gel on contact with water without swelling. The cables are made waterproof by the presence of the mixture, which is cheaper than prior mixtures but as effective.

REFERENCES:
patent: 2507508 (1950-05-01), Elliott et al.
patent: 3538235 (1970-06-01), Wappler et al.
patent: 3803339 (1974-04-01), Speekman
patent: 4002819 (1977-01-01), Woytiuk
patent: 4004077 (1977-01-01), Woytiuk
The Condensed Chemical Dictionary, Eighth Ed., Van Nostrand Reinhold, 1971, p. 459.

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