Patents for E03F 5 - Sewerage structures (11,230) |
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01/10/2002 | WO2002002882A1 Manhole joint device |
01/10/2002 | WO2002002203A2 Light liquid separator |
01/10/2002 | WO2001053208A3 Stormwater treatment apparatus |
01/10/2002 | DE10023750C1 Device, to prevent water exit from channel opening at high water, has metal or hard plastics support frame fitted over channel opening and container sealed against ground around channel opening |
01/10/2002 | CA2350421A1 Vacuum system |
01/09/2002 | EP1170425A1 Waste water collection arrangement |
01/09/2002 | CN1330190A Disintegrating system in waste pipe |
01/03/2002 | DE10028256A1 Connection device for underground sewage pipes in floor plates of buildings has outlet socket connected to sewage pipe and larger intake socket connectd to building drainage system |
01/02/2002 | EP1167645A1 Floor-inlet |
01/02/2002 | EP1165897A1 Funnel, especially made of synthetic material, for road gullies and method for producing same |
01/02/2002 | EP1165446A1 Method and arrangement for introduction of sewage pre-treatment upstream of sewage treatment facility |
01/02/2002 | CN2469083Y Bucket type vehicle for removing sand or the like from sludge trap |
01/02/2002 | CN1077189C Enhanced separator tank |
01/01/2002 | US6334953 Storm water drainage filter assembly |
01/01/2002 | CA2211841C Overflow water screening apparatus |
12/26/2001 | CN2467625Y Integral steel wirerope grating sewage draining-off machine |
12/25/2001 | CA2120941C Water retention reservoir structure |
12/20/2001 | WO2001096777A1 Well |
12/18/2001 | US6330724 Drain cover locking device |
12/13/2001 | WO2001094709A1 Gutter element |
12/12/2001 | EP0765185B1 Apparatus and methods for separating solids from flowing liquids or gases |
12/06/2001 | WO2001053614A3 Drain |
12/06/2001 | WO2001040590A3 Access means for a pipe system |
12/06/2001 | US20010047965 Wastewater treatment system and method |
12/06/2001 | US20010047955 Environmental filter |
12/06/2001 | US20010047954 In-line storm water drain filter system |
12/05/2001 | EP1159493A1 Self-disinfecting drain trap in drainage channels |
12/05/2001 | EP0935699A4 Gross pollution filter |
12/05/2001 | CN2463487Y Gulley cover |
12/04/2001 | US6325423 Arrangement with a female pipe adapter, a female pipe adapter, a bottom pan, an opening design, and a mold core |
11/29/2001 | WO2001089998A1 Road surface waste water treatment device and tubular water treatment unit |
11/29/2001 | DE10024071A1 Mains drainage intermediate treatment station repeatedly agitates and oxygenates water for expulsion of gases to a filter |
11/28/2001 | CN2461991Y Vacuum sewage collecting and discharging appts. |
11/28/2001 | CN1075583C Agitator in water |
11/22/2001 | WO2001088290A1 Solids/liquids separator |
11/22/2001 | WO2001088289A1 Weir section, a sewer pipe structure including such a weir section and their method of construction |
11/22/2001 | US20010042568 Sewer pipe structures and their method of construction |
11/21/2001 | EP0724676B1 Outlet component to be mounted in concrete floors in particular |
11/21/2001 | CN2460613Y Immersed climbing type machine grating |
11/21/2001 | CN2460612Y Combined digestion tank |
11/21/2001 | CN2460611Y Lattice cover |
11/21/2001 | CN2460610Y Automatic open-close manhole grate |
11/20/2001 | US6319397 Draining device adapted to be disposed within a drain port |
11/20/2001 | US6318397 Side port floor drain |
11/20/2001 | US6318395 Method and apparatus for sewer system flow control to reduce wastewater treatment electrical costs |
11/15/2001 | US20010040124 Gross pollutant trap |
11/15/2001 | DE10028977A1 Drainage shaft for lateral water removal from surfaces, particularly roads and parking areas, has on at least one side turned away from surface edge limitation extending upwards over drainage surface |
11/15/2001 | DE10027640C1 Drainage system has ventilation valve which has integral connecting pipe sections fitted into it |
11/14/2001 | EP1154085A1 Intermittently operating flushing valve |
11/14/2001 | EP1153176A1 Apparatus for shock-like flushing in a liquid system |
11/13/2001 | US6314988 Flood control valve assembly |
11/08/2001 | WO2001083900A1 Storm water inlet pollution trap |
11/08/2001 | WO2001083892A1 Manhole cover for a canalization |
11/08/2001 | US20010037827 Method and apparatus for use in manufacture of sump basins |
11/07/2001 | EP1151967A1 Method and apparatus for treating contaminated material containing animal or vegetable waste oil or the like |
10/31/2001 | EP1149956A1 Grit trap and flushing device |
10/31/2001 | DE10020367A1 Deposit shaft and flushing arrangement has normally installed blower tube to which is connected compressed air source on both sides, the two connecting conduits being differently dimensioned |
10/31/2001 | DE10020359A1 Pneumatic discharge device for raising sewage or effluent from underground installation, has collection vessel with vertical pipe leading to inlet and stand pipe leading to exit |
10/31/2001 | CN2457247Y Water drainage sink grid of composite material |
10/30/2001 | US6309139 Manhole with extension wings |
10/25/2001 | US20010032352 Sewer system ventilation cap |
10/24/2001 | CN1073656C Clean comprehensive water-saving multi-purpose dewatering mop sink |
10/23/2001 | US6305410 Sewage ejector basin and assembly |
10/17/2001 | EP1144763A1 Device for removing oil or any other fatty substance from the surface of a liquid in a basin |
10/17/2001 | EP0907806B1 Apparatus for collecting and/or treating and carrying away liquids, multiphase systems, or liquids containing lumpy substances, primarily waste water |
10/17/2001 | CN2454435Y High-strength drainage water grate for road |
10/11/2001 | US20010027954 Wastewater separator and method of using same |
10/10/2001 | EP1143080A1 Process for cleaning gullies |
10/10/2001 | EP1141495A1 Base of a gully |
10/10/2001 | EP1141494A1 Water conduit |
10/10/2001 | CN1072630C Method and device for collection and treatment of excrement |
10/09/2001 | US6299764 Sanitary floor drain |
10/09/2001 | US6299080 Lower grinder pump tank |
10/04/2001 | WO2001073231A1 A drain and a building structure having a drain |
10/04/2001 | WO2000044999A9 Apparatus for shock-like flushing in a liquid system |
10/04/2001 | EP1138832A2 Safety device for a rainwater gully |
10/04/2001 | DE10016198A1 Safety device for drainage channel has replaceable blocking clamp with guide and locking legs, to hold crossbar in position. |
10/04/2001 | DE10013981A1 Drainage grid for roadway has a secure location into the support frame using interlocking tag profiles |
10/03/2001 | CN1315243A Manhole cover for water supply or drainage and its production technology |
09/26/2001 | CN2450284Y Centrifugal water extractor |
09/20/2001 | WO2001068997A2 Method and apparatus for lining manholes |
09/20/2001 | DE10016099A1 Drainage shaft for highways and tunnels closes shaft runout chamber with overlapping cover plate joined to shaft frame via ring seal using surface-operated swivel bolt on cover plate underside to bolt plate down. |
09/20/2001 | DE10012379A1 Sandfanganlage Grit chamber |
09/19/2001 | EP1134323A2 Sand trap device |
09/19/2001 | CN2448886Y Plane water-proof bottom for integral bathroom |
09/19/2001 | CN2448880Y Spliced prefabricated reinforced concret septic tank |
09/13/2001 | WO2001066863A1 A pipe connector |
09/12/2001 | EP0682553B1 An apparatus for drainage of oil and water from a surface, especially from the deck of a tanker |
09/12/2001 | CN2447430Y Oil-separating and-removing device |
09/12/2001 | CN1070971C Reflecting body having high luminance |
09/11/2001 | US6287460 Device for continuously skimming off a top layer |
09/11/2001 | US6287459 Drainwater treatment system for use in a vertical passageway |
09/11/2001 | CA2209510C Sump pump container and method |
09/07/2001 | CA2300285A1 Storm water treatment device |
09/05/2001 | EP0973595B1 Modular lamellar clarifier |
09/05/2001 | EP0910707B1 Stepped filtration device for mechanically separating solids from liquids |
09/05/2001 | CN1070569C Water cut-off construction of side ditch |
09/05/2001 | CN1070567C Water cut-off construction of side ditch |
09/04/2001 | US6284138 Agent introduced by use of an agent generator and a mixing device interposed in the piping of the infrastructure or mixed with the sewage flow either upstream or downstream of a pump at the pumping site |
08/30/2001 | WO2001063060A1 Wastewater separator and method of using same |