Abstract: The mechanical piston pipette comprises a pipette body, a piston/cylinder assembly, the cylinder being arranged so as to be able to be equipped with a replaceable tip, and a tip ejector device, movable along the cylinder in order to eject a tip from the end of the cylinder. The pipette body accommodates an ejection actuation device and a piston actuation device (3, 4, 7) effecting given longitudinal translational travel between a low limit stop position and a high limit stop position in order to perform the aspiration of an adjustable volume of liquid, with means of modifying said travel, means (4) of adjusting the pipetted volume, means (8e, 8f, 8g) of displaying the pipetted volume and calibration means.

Abstract: The mechanical piston pipette comprises a pipette body, a piston/cylinder assembly, the cylinder being arranged so as to be able to be equipped with a replaceable tip, and a tip ejector device, movable along the cylinder in order to eject a tip from the end of the cylinder. The pipette body accommodates an ejection actuation device and a piston actuation device (3, 4, 7) effecting given longitudinal translational travel between a low limit stop position and a high limit stop position in order to perform the aspiration of an adjustable volume of liquid, with means of modifying said travel, means (4) of adjusting the pipetted volume, means (8e, 8f, 8g) of displaying the pipetted volume and calibration means.

Abstract: The invention relates to a pipette for transferring liquids, comprising the following: at least one piston-cylinder arrangement (3, 4), in which the cylinder (4) is arranged in such a way that it can be provided with a replaceable tip (8) for containing the liquid to be transferred; a piston actuating device (5) for drawing up and discharging the liquid; and a tip ejector device (6). Said ejector device comprises an ejection mechanism (16, 16′) which can be displaced along the cylinder in order to eject a tip (8) from the end of said 24 cylinder. A device (17) for actuating the ejection mechanism is also provided. The invention is characterized in that the ejector device (6) comprises a device for adjusting position (24, 24′, 33, 33′, 39, 39′), which is arranged in such a way that it is possible to modify the limit position reached by an ejection end (22, 22′) of the ejector device at the end of a stroke.