Magnetic sphere for use in a pipeline
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United States of America Patent
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Oct 24, 1995
Grant Date -
N/A
app pub date -
Jul 14, 1994
filing date -
Jul 14, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spherical pigging device for passage through a pipeline wherein magnetic sensors are located exterior to the pipeline. The device includes a non-ferrous spherical body. A plurality of magnets, each magnet having its poles radially aligned, are divided into two groups, a first group having its north poles facing the center of the spherical body and a second group having its north poles facing away from the center of the sphere.
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