US 12,295,915 B2
Method for controlling the volume flow rate from a nozzle
Reinhard Nowak, Loerrach (DE); and Lars Steinke, Loerrach (DE)
Assigned to Glatt Gesellschaft mit beschränkter Haftung, Binzen (DE)
Appl. No. 17/604,079
Filed by Glatt Gesellschaft mit beschränkter Haftung, Binzen (DE)
PCT Filed Mar. 11, 2020, PCT No. PCT/EP2020/056529
§ 371(c)(1), (2) Date Oct. 15, 2021,
PCT Pub. No. WO2020/212024, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 10 2019 205 743.8 (DE), filed on Apr. 18, 2019.
Prior Publication US 2022/0202649 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61J 3/00 (2006.01); B01J 2/00 (2006.01); B01J 2/02 (2006.01); B05B 1/08 (2006.01); B05B 1/32 (2006.01); B05B 3/16 (2006.01); B05B 7/06 (2006.01); B05B 7/10 (2006.01); B05B 7/12 (2006.01); B05B 12/08 (2006.01); B05B 15/50 (2018.01); B05B 15/52 (2018.01)
CPC A61J 3/005 (2013.01) [B01J 2/006 (2013.01); B01J 2/02 (2013.01); B05B 1/086 (2013.01); B05B 1/323 (2013.01); B05B 3/16 (2013.01); B05B 7/066 (2013.01); B05B 7/10 (2013.01); B05B 7/1281 (2013.01); B05B 12/085 (2013.01); B05B 15/50 (2018.02); B05B 15/52 (2018.02); B05B 7/1245 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for control or closed-loop control of a volume flow of a substance to be sprayed and/or of a gas through a nozzle, the nozzle comprising:
a nozzle body which has a nozzle mouthpiece,
wherein the nozzle body comprises an inner pipe, said inner pipe being connected to a feed for the substance to be sprayed and comprising an inner wall and an exit opening, and an outer pipe, said outer pipe being distanced to the inner pipe, connected to a feed for a gas, and comprising an exit opening,
wherein the exit opening of the inner pipe and the exit opening of the outer pipe are arranged in a region of the nozzle mouthpiece,
wherein the inner pipe is at least partly designed of an elastic material and a device which comprises an inlet for a fluid feed and an outlet for a fluid discharge is arranged in an annular gap between the inner pipe and the outer pipe,
wherein the device has a closure position for closing the inner pipe and at least one open position, wherein in the at least one open position the substance to be sprayed can flow through the exit opening of the inner pipe,
wherein the device is designed in a manner such that a volume of the device can be changed by way of the fluid feed or the fluid discharge such that the device can be brought or is brought from the closure position of the inner pipe into the at least one open position of the inner pipe and vice versa, and
wherein the method comprises bringing the device from the closure position of the inner pipe into the at least one open position of the inner pipe, thereby allowing the gas to begin to flow through the annular gap at least simultaneously on bringing of the device from the closure position of the inner pipe into the at least one open position of the inner pipe.