US 11,731,149 B2
Device for applying a viscous substance
Monika Schroft, Heroldsberg (DE); Herbert Brendel, Nuremberg (DE); and René Heinlein, Nuremberg (DE)
Appl. No. 17/613,830
Filed by Schwan Cosmetics International GmbH, Heroldsberg (DE)
PCT Filed Jun. 3, 2020, PCT No. PCT/EP2020/065281
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/245150, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 202019002457 (DE), filed on Jun. 5, 2019.
Prior Publication US 2022/0226849 A1, Jul. 21, 2022
Int. Cl. A45D 34/04 (2006.01); B05B 11/02 (2023.01); B05B 11/10 (2023.01); B05B 11/00 (2023.01); B43K 5/18 (2006.01)
CPC B05B 11/1026 (2023.01) [A45D 34/04 (2013.01); B05B 11/0035 (2013.01); B05B 11/028 (2023.01); B05B 11/1015 (2023.01); B05B 11/1052 (2023.01); B43K 5/189 (2013.01); A45D 2200/056 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for applying a viscous substance, comprising
a tank configured to store the viscous substance;
an applicator; and
a conveyor configured to convey the viscous substance from the tank to the applicator,
the conveyor including
a cylinder,
a first closing device,
a second closing device, the first and second closing devices axially displaceable in the cylinder,
a pump tappet adjustable relative to the second closing device and configured to axially displace the first and second closing devices,
a first connecting channel disposed between the cylinder and the tank, and
a second connecting channel disposed between the cylinder and the applicator,
wherein the first closing device opens or closes the first connecting channel depending on a position relative to the cylinder, and
wherein the second closing device opens or closes the second connecting channel depending on a position relative to the pump tappet.