EP 1548193 B1 20090114 - Device for preventing water entering a manhole shaft
Title (en)
Device for preventing water entering a manhole shaft
Title (de)
Vorrichtung zum Verhindern des Wassereintritts in einen Abwasserschacht
Title (fr)
Dispositif pour empêcher l'eau d'entrer dans un puit de regard
Publication
Application
Priority
DE 10361532 A 20031223
Abstract (en)
[origin: EP1548193A2] A perforated drain cover (2) lies flush with the road surface and covers the top of a shaft (1). A tray (4) with apertures (7) at the sides acts as a sand and leaf trap. Water flows from the sand and leaf trap onto a flat plate (5) with a central aperture (11) with an upstanding flange (12). Air flows through this aperture into a valve chamber (20). The water flows past a tube (18), with an air inlet (17) in each end, and a valve opening (19) in its center, closed by a float (22) on guides (21) when the chamber is full of water. A sieve (16) on the floor (14) of the chamber covers a small drain hole (15).
IPC 8 full level
E03F 5/08 (2006.01); E02D 29/14 (2006.01); E03F 1/00 (2006.01)
CPC (source: EP)
E03F 1/00 (2013.01); E03F 5/0404 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1548193 A2 20050629; EP 1548193 A3 20060607; EP 1548193 B1 20090114; AT E421005 T1 20090115; DE 10361532 B3 20050421; DE 502004008862 D1 20090305; ES 2320445 T3 20090522
DOCDB simple family (application)
EP 04026935 A 20041112; AT 04026935 T 20041112; DE 10361532 A 20031223; DE 502004008862 T 20041112; ES 04026935 T 20041112