ADJUSTMENT WHEEL OF THE PIPETTE Russian patent published in 2017 - IPC H01H19/00 B01L3/02 

FIELD: electricity.

SUBSTANCE: electric pipette includes an adjusting wheel that includes: a primary spring defining a first adjustment range and a secondary spring defining a second adjustment range after the first adjustment range in the direction of rotation of the adjusting wheel; the force required to turn the adjusting wheel within the first adjustment range is less than within the second adjustment range; the springs being configured to return the adjusting wheel to its initial position when the adjusting wheel is released.

EFFECT: increased sensitivity.

8 cl, 3 dwg