Patent ID: 6833114
Filing Date: 2004-12-21
Classification: B01L

Abstract:
Pipette for the transfer of liquids with at least one piston-cylinder arrangement (3, 4) in which the cylinder (4) is arranged so that it can be fitted with a replaceable tip (8) intended to contain the liquid to be transferred, a piston actuating device (5) for drawing up and discharging liquid, a tip ejector device (6) where the ejector device comprises an ejection mechanism (16, 16â€²) having an ejection extremity (22, 22â€²) that can be displaced along the cylinder from an initial position to an end position in order to eject a tip (8) from an extremity of the cylinder, and an actuating device (17) for the ejection mechanism, wherein the ejector device (6) comprises a position adjustment device (24, 24â€², 24â€³, 33, 33â€², 39, 39â€²) arranged so as to allow modification of the end position of said ejection extremity (22, 22â€²) while a replaceable tip is fitted on the cylinder.