EP 0869841 B1 20030604 - FOAM GENERATING DEVICE
Title (en)
FOAM GENERATING DEVICE
Title (de)
SCHAUMSTOFFHERSTELLUNGSVORRICHTUNG
Title (fr)
DISPOSITIF DE GENERATION DE MOUSSE
Publication
Application
Priority
- FR 9701167 W 19970701
- FR 9608162 A 19960701
- FR 9610947 A 19960909
- FR 9700690 A 19970123
Abstract (en)
[origin: WO9800227A1] The invention discloses a device generating foam by Venturi effect, mixing a product in liquid phase and a product in gaseous phase, comprising a nozzle (1) for admitting the liquid, coaxial with a Venturi stage (22) comprising a mixer head (18) located opposite the nozzle (1), the neck of which is of diameter "D", and a gas inlet (3) coaxial with the nozzle (1) communicating with the mixer head (18), the gas being sucked in by venturi effect and directed towards a mixing chamber (4) connected to a foam outlet. It is characterised in that, the mixture of the two phases being carried out in a free jet, the mixing injector (13) of the Venturi (22) comprises at least three gradually tapering zones, with gaps between the zones producing a cavitation effect, and opens into a whirl chamber (4).
IPC 1-7
IPC 8 full level
B01F 5/04 (2006.01); B01F 11/02 (2006.01); B05B 7/00 (2006.01); B05B 7/04 (2006.01); B05B 7/24 (2006.01); B05B 17/06 (2006.01)
CPC (source: EP US)
B01F 25/31 (2022.01 - EP US); B01F 25/3111 (2022.01 - EP US); B01F 25/31241 (2022.01 - EP US); B01F 25/31243 (2022.01 - EP US); B01F 25/312533 (2022.01 - EP); B01F 31/86 (2022.01 - EP US); B05B 7/0018 (2013.01 - EP US); B05B 7/0425 (2013.01 - EP US); B05B 7/0458 (2013.01 - EP US); B05B 7/2494 (2013.01 - EP US); B01F 23/235 (2022.01 - EP US); B01F 25/312533 (2022.01 - US); B05B 17/06 (2013.01 - EP US); Y10S 261/26 (2013.01 - EP US); Y10S 261/75 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
WO 9800227 A1 19980108; AT E242044 T1 20030615; CA 2231338 A1 19980108; DE 69722583 D1 20030710; EP 0869841 A1 19981014; EP 0869841 B1 20030604; US 6042089 A 20000328
DOCDB simple family (application)
FR 9701167 W 19970701; AT 97931836 T 19970701; CA 2231338 A 19970701; DE 69722583 T 19970701; EP 97931836 A 19970701; US 2941798 A 19980226