EP 0332090 B1 19941123 - Apparatus for extracting and removing a liquid containing noxious material, especially of dirty water.
Title (en)
Apparatus for extracting and removing a liquid containing noxious material, especially of dirty water.
Title (de)
Vorrichtung zur Absaugung und Abführung einer Schadstoffe enthaltenden Flüssigkeit, insbesondere von Schmutzwasser.
Title (fr)
Appareil pour aspirer et évacuer un liquide contenant des matières nocives notamment de l'eau sale.
Publication
Application
Priority
DE 3808124 A 19880311
Abstract (en)
[origin: EP0332090A2] A liquid feed hose (24) is connected to a negative pressure container (21). Connected downstream of the outlet (21.8) of the negative pressure container (21) is an outlet device which allows the liquid to be discharged even under negative pressure. The outlet device has a second negative pressure container (26), into which the outlet (21.8) of the first negative pressure container (21) opens out via a non-return valve (21.3). The outlet (26.1) of the second negative pressure container (26) is connected via a non-return valve (26.2) to a discharge line (28). The two negative pressure containers are connected to each other via a bypass system (25) which contains an actuatable 3/2-way valve (27). The actuation takes place in dependence on the negative pressure in the first negative pressure container (21) in such a way that, in a first operating state, in which the bypass is blocked and the second negative pressure container (26) is under atmospheric pressure, the first negative pressure container (21) is filled and the second is emptied. In a second operating state, the bypass is open, both negative pressure containers (21, 26) are under the same pressure and the liquid flows from the first negative pressure container (21) into the second negative pressure container (26). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
A47L 5/38 (2013.01 - EP US); Y10T 137/3109 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0332090 A2 19890913; EP 0332090 A3 19910703; EP 0332090 B1 19941123; AT E114228 T1 19941215; DE 3808124 A1 19890921; DE 58908651 D1 19950105; US 5022114 A 19910611
DOCDB simple family (application)
EP 89103819 A 19890304; AT 89103819 T 19890304; DE 3808124 A 19880311; DE 58908651 T 19890304; US 32001389 A 19890307