Patent ID: 7056657
Filing Date: 2006-06-06
Classification: B03C,C02F,G01N,Y10S,Y10T

Abstract:
1. A magnetic separation apparatus for separating magnetically responsive particles from a non-magnetic test medium, the apparatus comprising a non-magnetic container having an interior surface, magnetic means having a gap receiving the container, said magnetic means generating a magnetic field gradient within the container in which the magnetic field strength within the container is stronger in the test medium along the interior surface of the container than in the test medium more distant from the interior surface and is operative upon the magnetically responsive particles within the test medium to attract the magnetically responsive particles toward the interior surface of the container and cause such particles to be attracted to the interior surface; and a non-magnetic plunger operable to be displaced into said container to provide an annular space within said interior surface into which said non-magnetic test medium may pass.