US 11,745,194 B2
Applicator comprising a sealing membrane
Hans-Georg Fritz, Ostfildern (DE); Benjamin Wöhr, Eibensbach (DE); Marcus Kleiner, Besigheim (DE); Mortiz Bubek, Ludwigsburg (DE); Timo Beyl, Besigheim (DE); Frank Herre, Oberriexingen (DE); Steffen Sotzny, Oberstenfeld (DE); Daniel Tandler, Stuttgart (DE); and Tobias Berndt, Ditzingen (DE)
Assigned to Dürr Systems AG, Bietigheim-Bissingen (DE)
Filed by Dürr Systems AG, Bietigheim-Bissingen (DE)
Filed on Nov. 19, 2021, as Appl. No. 17/530,707.
Application 17/530,707 is a continuation of application No. 16/649,226, granted, now 11,207,698, previously published as PCT/EP2018/055578, filed on Mar. 7, 2018.
Claims priority of application No. 10 2017 122 488.2 (DE), filed on Sep. 27, 2017.
Prior Publication US 2022/0072570 A1, Mar. 10, 2022
Int. Cl. B05B 1/30 (2006.01); B05B 15/14 (2018.01); B05B 1/20 (2006.01); F16J 15/34 (2006.01); B41J 2/175 (2006.01)
CPC B05B 1/3053 (2013.01) [B05B 1/20 (2013.01); B05B 15/14 (2018.02); B41J 2/17596 (2013.01); F16J 15/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for applying a coating agent to a component, said system comprising:
an applicator including a nozzle chamber having a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing in use through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent in use;
a coating agent inlet for supplying the coating agent to be applied into the nozzle chamber of the applicator;
a coating agent source which feeds the coating agent into the coating agent inlet of the applicator;
a plurality of displaceable valve needles which are assigned to the individual nozzles and selectively open or close the respective nozzle as a function of the position of the valve needle;
an actuator chamber for accommodating actuators for displacing the valve needles; and
a sealing element, which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber, the sealing element designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles affecting the opening and closing of the nozzles at the adjacent valve needle.