Brand Gmbh + Co. Kg

Burkard Schaub

Steffen Gehrig

Jürgen Schraut

Günter Hochholzer

A pipette device having a pipette unit (), a positioning unit (), a micro-dosing unit () and a control device (). The micro-dosing unit () is implemented separately from the pipette unit (). However, it can be coupled to the pipette unit () in a precisely defined relative position. The pipette unit () thus has a coupling device () and the micro-dosing unit () has a corresponding counter-coupling device (). One of the two devices can be switched. By switching the coupling device () and/or the counter-coupling device (), the micro-dosing unit () can be coupled to the pipette unit () or decoupled from the pipette unit () as desired. If the micro-dosing unit () is coupled to the pipette unit (), it can be moved to different operating positions together with the pipette unit ().

Pipette device having a micro-dosing unit

A piston-operated pipette with a drive unit with a piston drive and a displacement unit mounted on the drive unit, the displacement unit being dismountable from the drive unit, the drive unit having an actuating drive for the piston drive and a receiving section for the displacement unit. The displacement unit has a fastening section which fits the receiving section of the drive unit, there being a first detachable mechanical connection between the actuating drive and the piston drive and there being a second detachable mechanical connection between the receiving section of the drive unit and the fastening section of the displacement unit. The second detachable mechanical connection is made as a magnetic connection. A mechanical arrangement for breaking the magnetic connection is provided between the receiving section and the fastening section, the magnetic connection being releasable by actuating the arrangement for breaking the magnetic connection.

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Eußenheim, Germany

Burkard Schaub