Fluid-leak detector cable

Details Fluid-leak detector cable Fluid-leak detector cable

1975-04-04

1977-06-14

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With fluid-condition responsive and/or indicating means

174107, 174110FC, 174115, 324 52, 340242, H01B 732

Patent

active

040298892

ABSTRACT:
A cable for detecting, in a stable and waterproof way, any leak of petroleum, petroleum product, or other fluid from an underground pipeline by means of a change in the electrostatic capacity between inner and outer conductors of the cable due to permeation by the leaking fluid. The cable offers constant, uninterrupted monitoring of such a pipeline with no limit to the watching range, and can accurately locate even a minor leak. The invention also involves a method of installing a detection system using such a detector cable, and a detection method which depends on electric pulses as means for detecting such a leak.

REFERENCES:
patent: 3281674 (1966-10-01), Landgraf
patent: 3510762 (1970-05-01), Leslie
patent: 3553341 (1971-01-01), Hureau
patent: 3564526 (1971-02-01), Butts
patent: 3600674 (1971-08-01), Roberts
patent: 3727128 (1973-04-01), McFerrin
patent: 3800217 (1974-03-01), Lowrance

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