Piston-operated pipette with interchangeable displacement unit
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United States of America Patent
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Jun 14, 2016
Grant Date -
May 22, 2014
app pub date -
Nov 19, 2013
filing date -
Nov 19, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
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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