Method of manufacturing a spherical pigging device

Details Method of manufacturing a spherical pigging device Method of manufacturing a spherical pigging device

1995-08-18

1996-05-28

Picard, Leo P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264278, 264313, 264317, B29C 3348

Patent

active

055208711

ABSTRACT:
A method of manufacturing a spherical pigging device for passing through a pipeline by forming a water soluble spherical core, affixing numerous magnets to the surface of the core, suspending the core within a spherical mold, pouring a liquid between the mold and the core that will cure to form a spherical body, removing the spherical body and dissolving the core to leave a hollow spherical body with the magnets encased within it.

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