Patents
Patents for E03F 5 - Sewerage structures (11,230)
01/1997
01/02/1997DE19621039A1 Rain or drain overflow channel
01/02/1997DE19523970A1 Safety-device for drain gutter
01/02/1997DE19523551A1 Shaft renovation method
01/02/1997DE19522344A1 Building component with cast mineral body
12/1996
12/25/1996CN1138650A Water saving circulating utilization system
12/19/1996DE19539042C1 Biological treatment of waste water, e.g. from communal, industrial or agricultural sources
12/19/1996DE19509466A1 Liq. storage tank with closable inlet and outlet
12/18/1996EP0748903A1 Security device for a drainage channel
12/18/1996CN1138126A Nozzle mud pipe
12/13/1996CA2151519A1 Stormwater quality and quantity catchbasin system
12/11/1996EP0747546A1 Device and method for removing waste from water
12/10/1996US5582720 Drain closure apparatus
12/05/1996DE19517101C1 Removal system for floating solids in rainwater overflow
12/04/1996EP0745731A1 Deodorizing filter
11/1996
11/28/1996DE19519476A1 Refurbishment of buried road shafts
11/27/1996EP0744504A1 Waste water pumping station
11/27/1996EP0744359A1 Improvements in and relating to access chambers
11/27/1996CN2241169Y Theftproof gully and manhole device
11/21/1996DE19619619A1 Escape ramp for frogs, toads or newts
11/21/1996DE19619618A1 Sewer outlet or inlet with amphibian passage
11/19/1996US5575925 Storm sewer catch basin and filter
11/14/1996WO1996035880A1 Automatic pneumatic pump
11/14/1996WO1996035843A1 Environmental filter
11/14/1996DE19541653C1 Locking bolt for quick fastening cover grating
11/14/1996CA2193973A1 Automatic pneumatic pump
11/13/1996EP0742036A2 Light liquids separator
11/12/1996US5573660 Screw conveyor
11/12/1996US5573349 Sediment dike with absorber apparatus
11/07/1996WO1996035020A1 Building element with a cast mineral body
11/06/1996CN1135008A Jetting type grate device
11/05/1996US5570715 Sump-vented controller mechanism for vacuum sewerage transport system
10/1996
10/31/1996WO1996034156A1 Sump-vented controller mechanism for vacuum sewerage transport system
10/31/1996DE19515662A1 Clarifier, etc. outflow function
10/30/1996EP0740024A1 Method for manufacturing a manhole
10/30/1996CN1134495A Water cut-off construction of side ditch
10/30/1996CN1134494A Construction of drainage channel
10/30/1996CN1134493A Water cut-off construction of side ditch
10/29/1996US5569372 Catch basin structure for interception of contaminants having detachable parts
10/23/1996EP0738354A1 Method and apparatus for sewage treatment
10/17/1996DE19545047A1 Flow retardation system for waste water settlement plant
10/16/1996CN2237671Y Anti-theft gully grating
10/15/1996US5564860 Fixture for attaching a grate to a drainage channel
10/10/1996DE19529545A1 Drain for flat surface
10/10/1996DE19511788C1 Releasable locking device to secure grating on drainage channel
10/10/1996DE19508894A1 Equipment for are oval of solids from liquid-solid mass
10/09/1996EP0736636A1 Manhole shaft with at least one shaft ring
10/08/1996US5562819 Apparatus for trapping, signalling presence of and collecting debris in waterways
10/08/1996US5562254 Grinder pump station
10/03/1996WO1996030100A1 Light liquid separation plant
10/03/1996CA2191461A1 Polynucleic acids and proteins from a porcine reproductive and respiratory syndrome virus and uses thereof
10/02/1996EP0734750A1 Light liquid separator
10/02/1996DE19532444C1 Apparatus for measuring the flow rate of liquids
10/02/1996DE19512352A1 Gulley with concrete protection pipe and control chamber
10/02/1996DE19511008A1 Sieve mechanism for rainwater relief structure
09/1996
09/26/1996WO1996029487A1 Air lock for a full-flowing gully
09/26/1996DE3844952C2 Fat and oil separator
09/25/1996CN2235990Y Well for checking water discharge
09/19/1996DE4447376C1 Installation for cleaning compartments in waste water pumping plant
09/19/1996DE19509630A1 Self-cleaning appts. separates and removes fat from water
09/18/1996EP0732458A1 Device for removing solids from a fluid/solid mass
09/18/1996EP0732308A1 Sludge treatment tank and construction method thereof
09/11/1996CA2144361A1 Storm water drainage system
09/10/1996US5553973 Flumes for manhole inverts
09/10/1996US5553794 Sewage handling system
09/05/1996DE19507698A1 Determining amount removed from container filled by non-pressure supply amount
09/05/1996DE19506131A1 Alignment equipment used for adjusting position and level of road fittings, e.g. drain cover
08/1996
08/29/1996DE19506806A1 Temporary reservoir for large rainwater vol. etc
08/28/1996EP0728244A1 Access gully
08/28/1996EP0581965B1 Solid-liquid separating apparatus
08/28/1996CN2233954Y Double theft-proof cover for rain water drainage well
08/28/1996CN1129760A Water saving toileting system
08/22/1996DE19517432C1 Fluid sepn. appts.
08/14/1996CN2232943Y Retaining apparatus for clearing duct and grabbing cold and hot objects
08/08/1996DE19503266A1 Grinder for installation in pipelines
08/07/1996EP0725040A1 Coalescence separator
08/07/1996EP0724676A1 Outlet component to be mounted in concrete floors in particular
08/07/1996EP0724675A1 Built-in component to be arranged in floors with a through-flow housing
08/06/1996US5543064 Sewage lift station
08/06/1996US5543038 Distributing and regulating unit
08/01/1996DE19502675A1 Street drain for rain water in canal system
07/1996
07/30/1996US5540411 Invert former for manhole base section
07/25/1996WO1996022143A1 Device for separating floating and suspended matter from a liquid
07/25/1996DE19548621A1 Ground gulley with body contg. outlet branch and syphon system for sewers, street drains etc.
07/25/1996DE19501470A1 Liq. separator for mixts. of water and lighter fluids
07/24/1996CN1127317A Glass fibre magnesium oxychloride cement rainwater grate
07/23/1996US5538755 Process for rehabilitation of sewer collection system structures
07/23/1996US5538032 Automatic back water valve system
07/18/1996DE19501034A1 Vorrichtung zum Abtrennen von Schwimmstoffen und Sinkstoffen aus einer Flüssigkeit Device for separating floating material and suspended matter from a liquid
07/17/1996CN2231282Y Anti-theft manhole cover
07/17/1996CN1126957A Readily installed universal sewage grinder pump
07/16/1996US5536404 Wastewater effluent management system using a sand filter
07/10/1996EP0720861A1 Separating plant for waste water loaded with deposit and floating material
07/10/1996EP0720860A1 Separator for light liquids dispersed in waste water
07/09/1996US5534140 Bar screen having compound fine screen bar rack
07/04/1996WO1996020316A1 Water closet
07/04/1996DE4447108A1 Colour marking for covers of service shafts
07/04/1996CA2206403A1 Flush toilet bowl
07/03/1996EP0719363A1 Transformer station
07/02/1996US5531888 Arrangement for separation of coarse matter and/or bulky solids in rainwater relief structures
06/1996
06/27/1996WO1996019621A1 Improved sewage handling system