US 11,986,783 B2
Dispensing system for mixture of two components and static mixing nozzle therefor
Peter Geboes, Turnhout (BE); Ivan Boeykens, Turnhout (BE); Thomas Duijsters, Turnhout (BE); and Lieven Sichien, Turnhout (BE)
Assigned to Soudal, Turnhout (BE)
Appl. No. 17/059,229
Filed by Soudal, Turnhout (BE)
PCT Filed Mar. 29, 2019, PCT No. PCT/EP2019/058068
§ 371(c)(1), (2) Date Nov. 26, 2020,
PCT Pub. No. WO2019/228693, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 18174921 (EP), filed on May 29, 2018.
Prior Publication US 2021/0205767 A1, Jul. 8, 2021
Int. Cl. B01F 5/06 (2006.01); B01F 23/47 (2022.01); B01F 25/421 (2022.01); B29B 7/32 (2006.01); B29B 7/74 (2006.01); B05B 7/04 (2006.01)
CPC B01F 25/4231 (2022.01) [B01F 23/47 (2022.01); B01F 25/4233 (2022.01); B29B 7/325 (2013.01); B29B 7/7419 (2013.01); B29B 7/7438 (2013.01); B29B 7/7457 (2013.01); B05B 7/0408 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A dispensing system for dispensing a mixture of a first component and a second component, the dispensing system comprising:
a dispensing gun comprising an inlet body with a first passage for feeding in the first component under pressure and a second passage for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet;
a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section, containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture;
wherein at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber,
wherein the flow path for the respective component is formed by a series of orifices through the static backflow prevention elements.