US 12,472,523 B2
Cleaning device for airless paint spraying equipment and method therefor
Heinrich Kunz, Elzach (DE)
Appl. No. 17/786,337
Filed by Heinrich Kunz, Elzach (DE)
PCT Filed Dec. 18, 2020, PCT No. PCT/IB2020/062221
§ 371(c)(1), (2) Date Jun. 16, 2022,
PCT Pub. No. WO2021/124274, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 135 118.9 (DE), filed on Dec. 19, 2019.
Prior Publication US 2023/0023340 A1, Jan. 26, 2023
Int. Cl. B05B 15/555 (2018.01)
CPC B05B 15/555 (2018.02) 13 Claims
OG exemplary drawing
 
1. An apparatus for cleaning inner lines and suction end (7) of airless sprayers (13), the suction end (7) being positioned upstream of an airless sprayers' (13) high-pressure pump, the apparatus comprising an upwardly open container (1) without a cover and having a volume between 0.5 and 20 liters, for receiving fresh water (W), into which the suction end (7) of an airless sprayer (13) can be inserted and remains open during cleaning, and an inlet (2) which can be connected to a water supply, wherein the container (1) has a level control (3) by means of which a level (N) of the fresh water (W) in the container (1) can be maintained at a predetermined value (X), characterized in that the inlet (2) opens into at least one nozzle (4) which is arranged above the level (N) and is pointed downward and configured to jet fresh water (W) directly into an interface region between the level (N) and suction end (7) and directly to a surface of received water to form turbulence(s) in the received water while the container remains open and uncovered.