Patent ID: 6409925
Filing Date: 2002-06-25
Classification: B01J,B03C,C40B,G01N

Abstract:
A system for transfer of solid magnetic particles from a plurality of source vessels to a plurality of target vessels such that material from each source vessel is transferred to a designated target vessel, the system comprising a plurality of detachably connected collecting members permitting simultaneous transfer of solid particles from a number of source vessels to one or more target vessels; each collecting member is made of a material which is not affected by a magnetic field, having a truncated particle collecting tip and an elongated lumen with an open end, said end of the lumen being at a distal portion of said elongated member adjacent to said tip; the lumen accommodating a magnetic field providing member within the lumen, which member is displaceable between a first position in which the magnetic field providing member is in said distal portion whereby attraction of said particles to said truncated tip occurs, and a second position in a proximal portion of said lumen in which said particles are not attracted to said truncated tip, transition between the first position and the second position is controlled by electric or pneumatic force; each collecting member is independently controlled.