Two-wall leakage detection system for a pipe

Details Two-wall leakage detection system for a pipe Two-wall leakage detection system for a pipe

1992-02-07

1992-12-22

Bryant, III, James E.

Pipes and tubular conduits

Combined

With indicating means

138 98, 138103, 138178, 73 405R, 73 491, 73 495, 174 11R, F16L 5518

Patent

active

051727307

ABSTRACT:
An elongated fluid detection device, together with a body of absorbent material, is located between the inner surface of a pipe and an impervious liner spaced from the inner surface thereof, the detection device being operatively connected to an external station. The impervious layer may be of a type normally used for relining defective pipes in situ, and the body of absorbent material, together with the fluid detecting element, preferably substantially filling the cylindrical space between the inner surface of the pipe and the impervious liner.

REFERENCES:
patent: 3025606 (1962-03-01), Turner
patent: 3254012 (1966-05-01), Ziegler
patent: 4013924 (1977-03-01), Christensen et al.
patent: 4029889 (1977-06-01), Mizuuchi
patent: 4288654 (1981-09-01), Blom et al.
patent: 4487057 (1984-12-01), Lutz
patent: 4797621 (1989-01-01), Anderson et al.
patent: 4800128 (1989-01-01), Schacht et al.

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