US 12,472,521 B2
Liquid dispenser with two liquid reservoirs
Timo Jung, Radolfzell (DE); Hubertus Pfeffer, Eigeltingen (DE); and Lenz Schmid, Constance (DE)
Assigned to APTAR RADOLFZELL GMBH, Radolfzell (DE)
Filed by Aptar Radolfzell GmbH, Radolfzell (DE)
Filed on Mar. 27, 2023, as Appl. No. 18/190,293.
Claims priority of application No. 22164746 (EP), filed on Mar. 28, 2022.
Prior Publication US 2023/0302475 A1, Sep. 28, 2023
Int. Cl. B05B 11/10 (2023.01); A61M 35/00 (2006.01)
CPC B05B 11/1084 (2023.01) [A61M 35/003 (2013.01); B05B 11/1001 (2023.01); B05B 11/1052 (2023.01)] 7 Claims
OG exemplary drawing
 
1. A liquid dispenser for dispensing a cosmetic or pharmaceutical liquid produced by mixing at least two starting liquids, comprising:
a reservoir body having an interior;
a partition wall disposed within the interior of the reservoir body;
at least two liquid reservoirs housed within the reservoir body for respectively holding the starting liquids, the liquid reservoirs extending in a main direction of extent of the liquid dispenser and being separated from each other by the partition wall;
at least one discharge opening;
at least one pump device for delivering liquid from the liquid reservoirs to the discharge opening;
a respective intake opening for removing the liquid, via the at least one pump device, disposed at a top end of each of the liquid reservoirs;
a respective intake tube extending from the intake opening to a bottom end of each of the liquid reservoirs; and
a reservoir base attached to the main body and having a first component defining therein a respective filling opening disposed at the bottom end of each of the liquid reservoirs, the reservoir base comprising barrier elements inside the respective liquid reservoirs in alignment with the respective filling openings and disposed to block the respective filling openings and prevent the respective intake tubes from entering the filling openings during an installation of the reservoir base onto the reservoir body in an installation direction, the barrier elements comprising respective second components of the reservoir base, the second components comprising respective inserts, the inserts being separate from the first component of the reservoir base and being fastened to the first component, each of the inserts having, on an upward facing side thereof at least one guide surface, the guide surfaces being disposed and configured to deflect the respective intake tubes away from the respective filling openings during installation of the reservoir base onto the reservoir body in the installation direction, the guide surfaces each having a shape deviating from a planar shape or a planar shape oblique relative to the main direction of extent.