Patent ID: 11951471
Assignee: EPPENDORF AG
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 2:
3. The pipette according to claim 1, wherein the gear mechanism includes a rod drive that comprises,
the driver element,
at least one first control cam, which may be activated by contact from above and which slopes in a peripheral direction,
at least one first guide element,
an actuator which has a lateral stop and which may be pushed from above by means of the operating element in the axial direction of the rod against the first control cam, and
at least one second guide element which is arranged fixedly in position in the pipette housing,
wherein the at least one second guide element is configured to guide the rod drive on the first guide element in the axial direction until the upper end of the first guide element is displaced beyond the lower end of the second guide element,
wherein the rod drive with the first control cam is rotated until the first guide element bears against the lateral stop of the actuator partially below the lower end of the second guide element, and
wherein with a return displacement of the actuator upwardly, the first guide element is released from the lateral stop when the lower end of the first guide element is displaced beyond the upper end of the lateral stop, and wherein the rod drive with the first control cam slides past the lower end of the second guide element until the rod drive with the first guide element is rotated into a position bearing against the second guide element.