Patent ID: 6562239
Filing Date: 2003-05-13
Classification: B03C,C12M,Y10S

Abstract:
A method comprising:positioning a first magnet to generate a first north-south magnetic field in a plane coplanar with a horizontal cross-sectional plane of a container; positioning a second magnet in arrangement with the first magnet to generate a second north-south magnetic field substantially opposing the first north-south magnetic field in a plane coplanar with the horizontal cross-sectional plane of the container; positioning a third magnet in arrangement with the first and second magnets to generate a third north-south magnetic field substantially perpendicular to the first and the second north-south magnetic fields, directed radially away from the container, in a plane coplanar with the horizontal cross-sectional plane of the container; positioning a fourth magnet, between the first and third magnet, to generate a fourth north-south magnetic field in a plane coplanar with the first north-south magnetic field, and directed toward the first north-south magnetic field; and pouring from the container a fluid containing magnetic beads, without a substantial loss of the magnetic beads.