SAMPLE PIPETTE HAVING AN IMPROVED DEVICE FOR ADJUSTING AND DISPLAYING A VOLUME TO BE TAKEN

摘要

The invention relates to an upper part (2) of sampling pipette (1) comprising: - a hollow outer body (6) forming a handle; a pipetting control rod (14); a device (20) for adjusting and displaying a volume to be sampled, comprising a first threaded volume adjusting member (22) to be traversed by the control rod (14), the device also comprising a set of first volume graduations (42) spaced angularly from each other about the longitudinal axis (3) and cooperating with a first mark (44) so as to provide information on the volume to be taken. According to the invention, the first threaded member (22) is integral in rotation with one of the two elements constituted by the set of first volume graduations (42) and the first mark (44), this element being arranged axially between the hollow outer body (6) forming a handle and the control knob (16).