Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Patent
1979-08-02
1981-03-24
Moore, David K.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
324 52, 324326, G01R 1130
Patent
active
042583233
ABSTRACT:
An apparatus for locating an electrical leakage fault path relative to a cathodically protected buried pipe utilizes a conductor wire having a first end connected to the pipe and a second end wound on a reel including a level winding and distance measuring mechanism and connected to electrical signal monitoring components. An electrode in an earth cutting blade is also connected to the monitoring components and is mounted to a drafting structure for moving the blade through the earth generally over the buried pipe a sufficient depth to continuously encounter and sense electrical current indicating a flow or break in the cathodic protection of the pipe. The drafting structure includes a hitch for connection to a suitable vehicle and a regulating mechanism for controlling the depth of the blade into the earth. The monitoring components collect, store, process and analyze data derived from the electrode with respect to the conductor wire to continuously determine the extent of cathodic protection of the pipe and location of faults if any.
REFERENCES:
patent: 2123545 (1938-07-01), Pearson
patent: 2335024 (1943-11-01), Pearson
patent: 2382743 (1945-08-01), Penther et al.
patent: 2501598 (1950-03-01), Eltenton et al.
patent: 3066256 (1962-11-01), Rasor
patent: 3617865 (1971-11-01), Hakata
patent: 3648282 (1972-03-01), Kelly
patent: 3735249 (1973-05-01), Stoll
patent: 3907136 (1975-09-01), Christides et al.
patent: 3916298 (1975-10-01), Ulrich
patent: 3991363 (1976-11-01), Lathrop
patent: 4039938 (1977-08-01), Link
patent: 4063161 (1977-12-01), Pardis
Andrews Larry A.
Tietze Thomas N.
Moore David K.
Panhandle Eastern Pipe Line Company
LandOfFree
Cathodic survey apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cathodic survey apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cathodic survey apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2409895