US 12,434,233 B2
Pipetting device
Ottmar Kneucker, Helmstadt (DE); Markus Kurz, Wertheim (DE); Florian Metz, Waldbüttelbrunn (DE); and Dieter Böhm, Wertheim (DE)
Assigned to BRAND GMBH + CO KG, Wertheim (DE)
Filed by BRAND GMBH + CO KG, Wertheim (DE)
Filed on Jun. 29, 2022, as Appl. No. 17/852,431.
Claims priority of application No. 102021117126.1 (DE), filed on Jul. 2, 2021.
Prior Publication US 2023/0001403 A1, Jan. 5, 2023
Int. Cl. B01L 3/02 (2006.01)
CPC B01L 3/0224 (2013.01) [B01L 3/0237 (2013.01); B01L 2300/025 (2013.01); B01L 2400/0478 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pipetting device for taking up and dispensing fluid volumes, comprising:
a displacement apparatus having a displacement device and a displacement housing,
a drive device for moving the displacement device in the displacement housing,
wherein movement of the displacement device is limited by an upper stop, a lower stop and at least one counter stop of the drive device, so that a stroke of the displacement device is defined,
a volume indicator for displaying a pipetting volume associated with the stroke of the displacement device and/or correlated with the stroke of the displacement device,
an adjusting device to change the stroke of the displacement device,
an adjustment indicator for indicating an adjustment value of the stroke of the displacement device, and
a coupling device which
in a use state couples the adjusting device to the volume indicator and decouples the adjusting device from the adjustment indicator, whereby an actuation of the adjusting device causes a change of the volume indicator but not of the adjustment indicator, and
in an adjustment state couples the adjusting device to the adjustment indicator and decouples the adjusting device from the volume indicator, whereby an actuation of the adjusting device causes a change of the adjustment indicator but not of the volume indicator.