Patents
Patents for E03F 5 - Sewerage structures (11,230)
12/1995
12/14/1995DE4415233C1 Spülventil Flush valve
12/14/1995DE4413062A1 Road drainage inlet, for use in mechanised road construction
12/07/1995DE4419352A1 Shaft for water supply or drainage system
12/06/1995EP0685607A1 Prefabricated concrete box
12/06/1995EP0685431A2 Method and apparatus for the separation of sediments from sewage
12/06/1995EP0685414A1 Helical conveyor
12/06/1995EP0635085B1 Chain conveyor or scraper, in particular for sewage installations
11/1995
11/30/1995DE4418370A1 System for manufacturing concrete drain components
11/29/1995EP0683841A1 Lined manhole assembly and liner
11/29/1995CN2213767Y Grate for sewer
11/28/1995US5470489 Method and inlet device for charging shallow grit chambers or settling tanks
11/23/1995DE4413193C1 Separator device for waste water
11/22/1995EP0683277A2 Reinforced concrete basin type separator
11/22/1995EP0682966A1 Automatically acting shut-off
11/22/1995EP0682553A1 An apparatus for drainage of oil and water from a surface, especially from the deck of a tanker
11/22/1995CN2213185Y Plastic well body construction member for handhole well
11/22/1995CN1112035A Bar screen having compound fine screen bar rack
11/21/1995US5468096 Means for securing a cover over a drainage channel
11/21/1995US5468090 Bending weir
11/16/1995WO1995030812A1 Method and apparatus for spraying grout onto the interior surface of a manhole
11/16/1995DE4417025A1 Process for mfr. of bottom manhole sections with integral channel
11/15/1995EP0682155A1 Hinged downflow baffle
11/15/1995CN2212614Y Oblique strip shaped water grating and its frame
11/14/1995US5466091 Surface drainage apparatus
11/09/1995WO1995030060A1 Flush valve
11/09/1995DE4415715A1 Binding element for underground piping at access shafts
11/02/1995EP0679879A1 Pneumatic closure device for testing manholes with air pressure
11/02/1995EP0679771A2 Venting device for faeces receptacle
11/02/1995DE4415144A1 Pre-packed kit for drainage shaft
10/1995
10/31/1995US5462382 Surface drainage apparatus
10/31/1995US5462075 Method and device for controlling a flow of fluid
10/26/1995DE4413934A1 Purifier for soluble oil emulsions, used for cutting and grinding
10/26/1995DE4412679A1 Sieve device for water supply structure of sewage treatment works
10/25/1995EP0678632A1 Controlling device for a drain-syphon
10/25/1995EP0678136A1 A distributing and regulating unit.
10/25/1995CN2210927Y Anti-theft manhole-cover for plumbing in city
10/19/1995DE4412678A1 Elastic nozzle insert for spraying dirty water contg. foreign bodies
10/19/1995DE4412124A1 Versatile extractor removes separated solids from flowing waste water channels
10/17/1995US5458769 Floor drain
10/11/1995CN1109939A Reflecting body having high luminance
10/05/1995DE4411521A1 Ground box drain as outlet point for water
10/05/1995DE4411492A1 Ground drain for rooms
10/04/1995EP0675238A2 Odour seal for manhole shaft
10/04/1995EP0675230A1 Grating latching device to a framing or the like
09/1995
09/28/1995WO1995025852A1 Prefabricated stucture of ferroconcrete or a substitute material
09/28/1995DE4410632A1 Heavy/light fluid/solid separation assembly fabricated with standard ferro-concrete pipes
09/28/1995DE4409799A1 System and blank for mfg. tubular half=shell and gutters
09/28/1995DE4409692A1 Appts. for the removal of separated matter in a liquid flow
09/28/1995DE4409216A1 Small waste water treatment plants, comprising one or more chambers
09/27/1995EP0674056A1 Device for locking a grating on a drainage channel
09/26/1995US5452853 Method and apparatus for spraying grout onto the interior surface of an enclosed elongated cavity
09/21/1995DE4408316A1 Drainage for roof gardens
09/20/1995EP0672800A2 Bar screen having compound fine screen bar rack
09/20/1995EP0672799A2 Plastic branching unit for canals
09/19/1995US5451081 Freeze proof adapter
09/14/1995DE4407353A1 Rainwater separation for rural water purification systems
09/13/1995EP0671516A2 Base element for a manhole shaft
09/13/1995EP0670969A1 Device for limiting the outflow and simultaneous intermediate storage of waste water and separation
09/13/1995EP0670815A1 Method and device for the separation of a contaminated top layer
09/13/1995CN1108335A Flashing type septic tank and its complete set of equipment
09/07/1995DE4407403A1 Fat interceptor, preventing entry into sewerage systems from e.g. catering factories
09/07/1995DE4406783A1 Outlet fitting for roofs or floors
09/07/1995DE4406782A1 Drain fitting for floors or roofs
09/06/1995EP0670395A2 Lower element for manhole shafts
09/06/1995EP0555292B1 Vortex valves
09/06/1995CN1029703C Vacuum siphon for sewer pipe
08/1995
08/31/1995DE4407527C1 Method for washing, separating and removing soluble solids from non-soluble solids
08/30/1995EP0529082B1 Inverted siphon of vacuum type sewerage
08/24/1995DE4417291C1 Conical plug suspended on float and associated seal
08/23/1995EP0668410A1 Modular grating e.g. for covering gutters
08/23/1995EP0668409A1 Manhole cover grating
08/16/1995EP0666944A1 Apparatus for forming a multi-walled containment trench
08/10/1995DE4409396C1 Ready=made structure of steel concrete or replacement material
08/10/1995DE19501381A1 Self cleaning continuous belt effluent filter
08/09/1995EP0666378A1 Device at discharge chute
08/09/1995CN2204827Y Automatic rack
08/08/1995US5439180 Readily installed universal sewage grinder pump
08/03/1995DE4447121A1 Releasable lock for cover of ground utility
08/02/1995EP0665340A1 Device for cleaning solid particles in waste water
08/02/1995EP0664846A1 Discharge device
08/01/1995US5437516 Surface drainage apparatus
07/1995
07/25/1995US5435664 Sewage water pumping station, and a tank therefor
07/20/1995WO1995019471A1 Method and apparatus for sewage treatment
07/20/1995WO1995013434A3 Drainage system
07/18/1995US5433845 Flow control bypass basin apparatus
07/11/1995US5431826 Plumbing
07/11/1995US5431818 Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants
07/05/1995EP0661483A1 Valve for venting and aerating a waste water conduit
06/1995
06/29/1995DE4338905C1 Waste extraction mechanism from liquid in gutter
06/28/1995EP0521885B1 Apparatus for preventing water damage due to plumbing leaks in buildings
06/22/1995DE4343380A1 Press for sewage screenings
06/21/1995EP0658657A2 Flushing device
06/15/1995CA2137874A1 Flushing device
06/14/1995CN2200670Y Assembly solid-liquid separator of integral oxidation channel
06/08/1995DE4340410A1 Surface-dewatering equipment, in partic. gutter
06/07/1995EP0592508B1 Process and device for improving the treatment of sewage solids, sand, rubbish or the like
06/06/1995US5422003 Gas-liquid separation flow rate regulator in sewage disposal tank
06/01/1995DE4421498A1 Sepn. of water from lighter fluid deposits bearing heavy particles
06/01/1995DE4340324A1 Light-fluid extraction method from separator
05/1995
05/31/1995EP0655267A1 Separator for waste water loaded with floating matter