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