EP 2639369 B1 20170719 - Backflow prevention device for waste water installations
Title (en)
Backflow prevention device for waste water installations
Title (de)
Rückstausicherung für Abwasseranlagen
Title (fr)
Dispositif anti-reflux pour installations d'eaux usées
Publication
Application
Priority
DE 102012102225 A 20120316
Abstract (en)
[origin: EP2639369A2] The device has an inlet pipe (5) connectable to a domestic sewage line, and a drain line (6) connectable to a sewer. A pumping device (8) pumps sewage water (12) over pressure lines (10, 20) into the sewer. A shut-off device (7) i.e. pinch valve, stays in a directly or indirectly controlled connection with the pressure line and/or the drain line such that the shut-off device is shut when overpressure exists in the pressure line and/or the drain line. A membrane device (13) disconnects the flow of sewage water from hydraulic medium (14) to directly or indirectly control the shut-off device. The membrane device is a tensile hose.
IPC 8 full level
CPC (source: EP)
Citation (examination)
US 4272640 A 19810609 - BAUMBACH WILLIAM J
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
DOCDB simple family (publication)
EP 2639369 A2 20130918; EP 2639369 A3 20150114; EP 2639369 B1 20170719; DE 102012102225 A1 20130919
DOCDB simple family (application)
EP 13159129 A 20130314; DE 102012102225 A 20120316