Julie H Richardson

US Patent:

20080118406, May 22, 2008

Filed:

Nov 20, 2006

Appl. No.:

11/601654

Inventors:

Turan A. Kayagil - Arlington VA, US
Julie A. Richardson - Jackson NJ, US

International Classification:

B01L 11/00

US Classification:

422101, 422 99

Abstract:

A device consisting of a low-RPM motor wherein the motor spins a flat disk, a peg is attached to the disk, a stationary spring armature wherein the peg can activate the stationary spring armature as the disk rotates, and a tube containing beads in a fluid positioned in a top plate wherein the spring armature can contact the tube. This device can further include a soft closed-cell foam top mounted on the top plate wherein the tube is inserted and maintained by the foam in such a way as to allow for slight motion of the tube induced by the contact by the spring armature. This device can also include a secondary component wherein the secondary component separates magnetic beads from a fluid and wherein the secondary component consists of a holder into which the tube is inserted and wherein the holder contains a magnet such that when the tube is inserted the bottom of the tube is in close proximity to the magnet. Multiple tubes can be utilized and said beads can be evenly dispersed in less than one minute. The magnet can cause the magnetic beads to settle at the bottom of the tube and form a bead pellet in less than one minute. The spinning can be at a speed that results in an about 0.2-10 Hz tapping.