Magnetic sphere for use in a pipeline

Details Magnetic sphere for use in a pipeline Magnetic sphere for use in a pipeline

1994-07-14

1995-10-24

Picard, Leo

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335303, 15104061, B08B 902, H02F 702

Patent

active

054613540

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.

REFERENCES:
patent: 1589039 (1926-06-01), Anschutz-Kaempfe
patent: 3546642 (1970-12-01), Frederick et al.
patent: 3673692 (1972-07-01), Quenot
patent: 4113611 (1978-09-01), Gohm
patent: 4441375 (1984-04-01), Minohara
patent: 4654561 (1987-03-01), Shelton
patent: 4945306 (1990-07-01), Lowther
patent: 5323442 (1994-06-01), Golovanivsky et al.
patent: 5379271 (1995-01-01), Moedt

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