EP 2277617 A1 20110126 - Combination Venturi check valve
Title (en)
Combination Venturi check valve
Title (de)
Kombinations-Venturi-Rückschlagventil
Title (fr)
Clapet de retenue Venturi combiné
Publication
Application
Priority
EP 09165878 A 20090720
Abstract (en)
Disclosed herein is a combination venturi check valve for introducing a composition, such as ozone, into the fluid circulation line of a swimming pool, spa, and/or other recreational body of water. The combination venturi check valve preferably includes a fluid inlet (18), a fluid outlet (20), a venturi passage (26) for suctioning in the composition, and a bypass passage (24) with a valve enabling compatibility with pumps having different flow rates. According to the invention, the venturi and bypass passages (24,26) share a common wall (22). The valve automatically adjusts the flow rate of fluid through the bypass passage without requiring human intervention.
IPC 8 full level
B01F 3/04 (2006.01); B01F 5/04 (2006.01); F17D 3/12 (2006.01)
CPC (source: EP US)
B01F 23/232 (2022.01 - EP); B01F 23/2326 (2022.01 - EP US); B01F 23/237613 (2022.01 - EP); B01F 25/312 (2022.01 - EP); B01F 25/31242 (2022.01 - EP); F17D 3/12 (2013.01 - EP); B01F 2101/305 (2022.01 - EP)
Citation (search report)
- [A] US 6162021 A 20001219 - SARSHAR MIR MAHMOOD [GB], et al
- [A] WO 2006027145 A1 20060316 - SMITH KENNETH [DE]
- [A] WO 0201970 A2 20020110 - FMC CORP [US]
Citation (examination)
- US 7125003 B1 20061024 - FALKNER KEMP E [US]
- US 5170818 A 19921215 - HATZIKAZAKIS MICHAEL V [US]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 09165878 A 20090720