Patent attributes
A pipetting device, having a base plate, an elastic sealing plate that covers the outside of the base plate, and a plurality of pipetting channels arranged in a predetermined grid extending through the base plate and the sealing plate. A magazine is loaded in the same grid with the pipette tips, each pipette tip having a shoulder. The magazine is arranged in a magazine holder indirectly frictionally connected via the shoulders and the sealing plate with the base plate, and a drive motor, indirectly connected to the eccentric shafts of two identical eccentric drives that are permanently mounted on the support on the base plate. Each drive has an eccentric pin that is offset by a distance with respect to the axis of the eccentric shaft, and one T-shaped gravitational pendulum is suspended from each of the eccentric pins. The magazine holder is formed by a U-shaped magazine frame with a bearing surface on the inside. The magazine frame, on its lateral legs, is connected to the cross member of each gravitational pendulum so as to be able to lift and lower the magazine frame relative to the base plate.
