US 11,730,311 B2
Mixing apparatus
Tim Gerard Tibbe, Eindhoven (NL); Joeke Noordhuis, Eindhoven (NL); Hendrik Klaas Louwsma, Eindhoven (NL); Gertrude Riëtte Bakker-Van Der Kamp, Eindhoven (NL); Andrea Pecci, Eindhoven (NL); Massimiliano Sceusa, Eindhoven (NL); Gerben De Roode, Eindhoven (NL); and Jan Buffinga, Eindhoven (NL)
Assigned to KONINKLIJKE PHILIPS N.V, Eindhoven (NL)
Appl. No. 17/789,145
Filed by KONINKLIJKE PHILIPS N.V, Eindhoven (NL)
PCT Filed Dec. 24, 2020, PCT No. PCT/EP2020/087883
§ 371(c)(1), (2) Date Jun. 24, 2022,
PCT Pub. No. WO2021/130375, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 19219590 (EP), filed on Dec. 24, 2019.
Prior Publication US 2023/0024663 A1, Jan. 26, 2023
Int. Cl. A47J 31/44 (2006.01); B01F 25/312 (2022.01); B01F 23/2326 (2022.01); B01F 23/20 (2022.01); B01F 23/235 (2022.01); A47J 31/46 (2006.01); B01F 101/07 (2022.01)
CPC A47J 31/4485 (2013.01) [A47J 31/4403 (2013.01); A47J 31/46 (2013.01); B01F 23/235 (2022.01); B01F 23/2326 (2022.01); B01F 23/291 (2022.01); B01F 25/312 (2022.01); B01F 2101/07 (2022.01); B01F 2215/0472 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A mixing apparatus, comprising:
a first port for receiving milk;
a second port for receiving steam;
a mixing chamber for mixing the milk, the steam, and air;
an outlet spout which receives the mixed liquid from the mixing chamber, and
a channel arrangement between the first and second ports and the mixing chamber, wherein the channel arrangement comprises:
a first channel portion connected between the first port and a frothing section;
a second channel portion connected between the second port and the frothing section, wherein the frothing section couples to the mixing chamber; and
an air intake channel to the frothing section,
wherein the mixing apparatus comprises a barrier element at an outlet of the mixing chamber to the outlet spout, wherein the barrier element is adapted such that, in use, the frothing section is filled sufficiently with steamed milk that a direct path from the second port to the mixing chamber is interrupted by the steamed milk.