US 12,187,026 B2
Apparatus for coating a surface with individual particles
Sasy Azar, Mazkeret Batya (IL); Benzion Landa, Nes Ziona (IL); Yosef Shachak, Kfar Saba (IL); and Nir Rubin Ben Haim, Hod Hasharon (IL)
Assigned to LANDA LABS (2012) LTD., Rehovot (IL)
Filed by LANDA LABS (2012) LTD., Rehovot (IL)
Filed on Sep. 8, 2022, as Appl. No. 17/910,092.
Application 17/910,092 is a continuation in part of application No. PCT/IB2021/052775, filed on Apr. 2, 2021.
Claims priority of application No. 2005159.5 (GB), filed on Apr. 7, 2020; and application No. 2020721.3 (GB), filed on Dec. 30, 2020.
Prior Publication US 2024/0165981 A1, May 23, 2024
Int. Cl. B05C 19/04 (2006.01); B05B 1/26 (2006.01); B05B 7/14 (2006.01); B05B 14/10 (2018.01); B05C 5/02 (2006.01); B05C 11/02 (2006.01); B05C 19/00 (2006.01); B41F 13/193 (2006.01); B41F 13/22 (2006.01); B41M 5/03 (2006.01); G01N 15/075 (2024.01)
CPC B41F 13/22 (2013.01) [B05B 1/265 (2013.01); B05B 7/1486 (2013.01); B05B 14/10 (2018.02); B05C 5/0245 (2013.01); B05C 11/025 (2013.01); B05C 19/008 (2013.01); B05C 19/04 (2013.01); B41F 13/193 (2013.01); B41M 5/03 (2013.01); G01N 15/075 (2024.01)] 19 Claims
OG exemplary drawing
 
1. A coating apparatus for applying a layer of particles to a receiving surface, the apparatus comprising:
a) an application chamber partially bounded by the receiving surface;
b) a source of pressurized air in fluid coupling with the application chamber;
c) an air return path forming fluid communication between the application chamber and an intake of the air source, the return path forming a portion of an air circulation loop;
d) at least one nozzle disposed in the air circulation loop downstream from the source of pressurized air and disposed within the application chamber in a manner which will cause air supplied by the source of pressurized air to pass through the nozzle and exit therefrom as an air stream;
e) a dosing device coupled to a source of particles to be coated onto the receiving surface and capable of controllably introducing particles into the air circulation loop; and,
f) a particle deflector disposed in the path of the air stream exiting the nozzle such that particles carried by the air stream impact the deflector prior to contact being made between the particles and the receiving surface.