EP 2847391 A1 20150318 - BACKUP PNEUMATIC WATER PRESSURE DEVICE
Title (en)
BACKUP PNEUMATIC WATER PRESSURE DEVICE
Title (de)
UNTERSTÜTZENDE PNEUMATISCHE WASSERDRUCKVORRICHTUNG
Title (fr)
DISPOSITIF PNEUMATIQUE POUR FOURNIR UNE PRESSION D'EAU DE SECOURS
Publication
Application
Priority
US 2012034693 W 20120423
Abstract (en)
[origin: WO2013162507A1] A fluid pressure backup device has a tank mounted between pressurized fluid and piping for delivering the fluid. An air bladder within the tank is inflated by an air compressor to provide backup fluid pressure when the pressurized fluid source fails. Control circuitry assures that when the backup device has been activated there is minimal drain on the battery from other system components when the air compressor is not operating. A bladder rod and a hook and loop assembly maintain the orientation of the air bladder during use. In the exemplar application of the device to provide backup water pressure, a control unit detects when water pressure at the source is lost, and monitors air pressure in the bladder and water pressure in the tank. When water pressure is restored at the source, the control unit shuts off the compressor and opens an air pressure relief valve at the bladder.
IPC 8 full level
E03B 11/02 (2006.01)
CPC (source: EP)
E03B 11/06 (2013.01); Y02A 20/00 (2017.12)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013162507 A1 20131031; EP 2847391 A1 20150318; EP 2847391 A4 20160302
DOCDB simple family (application)
US 2012034693 W 20120423; EP 12874979 A 20120423