EP 0639716 A1 19950222 - Device for sewage pumping stations.
Title (en)
Device for sewage pumping stations.
Title (de)
Vorrichtung für Abwasserpumpstation.
Title (fr)
Dispositif pour stations d'épuration d'eaux usées.
Publication
Application
Priority
SE 9301403 A 19930427
Abstract (en)
The invention concerns a device for pump stations comprising two or more pump units (4), (5). The pressure pipes (8), (9) from the pump units are connected via a shunt lead (10) which is kept open during short intervals at pump starts, thus obtaining a backward flow through the pump(s) which not operate at the moment, thereby flashing out pollutions through the inlet(s) of said pump(s). <IMAGE>
IPC 1-7
IPC 8 full level
F04D 15/00 (2006.01); F04D 29/70 (2006.01)
CPC (source: EP)
F04D 15/0072 (2013.01); F04D 29/708 (2013.01)
Citation (search report)
- [X] US 1415769 A 19220509 - HUBERT BEDDOES
- [A] US 2238597 A 19410415 - CHARLES PAGE ALFRED
- [X] PATENT ABSTRACTS OF JAPAN vol. 6, no. 117 (M - 139)<995> 30 June 1982 (1982-06-30)
Designated contracting state (EPC)
DE DK FR GB IT
DOCDB simple family (publication)
EP 0639716 A1 19950222; NO 941513 D0 19940426; NO 941513 L 19941028; SE 501194 C2 19941205; SE 9301403 D0 19930427; SE 9301403 L 19941028
DOCDB simple family (application)
EP 94850060 A 19940420; NO 941513 A 19940426; SE 9301403 A 19930427