Patent ID: 7344680

Claim:
Pipette, comprising: a pipette shaft made of a plastic material, the pipette shaft having an attachment section formed on a lower end thereof which is adapted for slip-on reception of a plastic pipette tip having a slip-on section with an opening for slip-on attachment to said attachment section, an ejector sleeve which surrounds the pipette shaft, and an ejector actuator arranged to axially push the ejector sleeve down relative to the pipette shaft in order to eject a pipette tip, which has been slipped onto the pipette shaft from below, after completing at least one pipetting process; wherein a sealing section made of an elastically-flexible plastic material is joined to the attachment section of the pipette shaft by having been retentively molded directly to the plastic material of the pipette shaft; and, wherein an upper area of the sealing section is permanently located under the ejector sleeve such that a transition from the sealing section to the pipette shaft is always covered by the ejector sleeve.