| Patents for E03F 5 - Sewerage structures (11,230) |
|---|
| 10/05/1989 | DE3907590A1 Siphon |
| 10/05/1989 | DE3809583A1 Process and apparatus for the discharge of rainwater |
| 10/03/1989 | US4871452 On-board water supply |
| 10/03/1989 | US4871451 Floor drain plate assembly |
| 09/27/1989 | EP0333925A1 Light liquids separator |
| 09/21/1989 | WO1989008751A1 Liquid control apparatus |
| 09/21/1989 | WO1989008750A1 A device for controlling fluid flow |
| 09/21/1989 | DE3808297A1 Rainwater treatment and duct flushing by novel street inlets (syphon gulley) |
| 09/21/1989 | DE3807643A1 Light liquid separator |
| 09/21/1989 | DE3807367A1 Process and apparatus for activating retaining chambers present in sewerage systems of residential-area water management |
| 09/20/1989 | EP0333089A2 Room isolating device |
| 09/19/1989 | US4867802 Air admittance valve for use in drainage systems |
| 09/19/1989 | US4867411 Manhole invert casting system |
| 09/12/1989 | US4865526 Pumping system |
| 09/08/1989 | WO1989007971A1 Interceptors |
| 09/07/1989 | DE3901815A1 Apparatus for draining sewage-collecting tanks in residential areas |
| 08/31/1989 | DE3804158A1 Separating apparatus |
| 08/22/1989 | US4859322 Device for removing material screened or filtered out of a liquid flowing in a channel |
| 08/17/1989 | DE3815365A1 Installation part for shafts and drainage parts and apparatus for handling the same |
| 08/09/1989 | CN2042489U Closed rain-water draining outlet |
| 08/08/1989 | US4854827 Sanitary pump station |
| 08/08/1989 | US4854543 Apparatus for forming an opening with a gasket in a masonry manhole |
| 08/03/1989 | DE3822555A1 Throttle device for drainage (sewerage) systems |
| 08/03/1989 | DE3801817A1 Inlet grating for gulleys |
| 08/01/1989 | US4852609 Sump pump adaptor |
| 07/25/1989 | US4850059 Apparatus for preventing backing up of sewage in a building |
| 07/19/1989 | EP0324055A1 Gully for floors, roofs or the like |
| 07/13/1989 | WO1989006298A1 Narrow accessway sewage collection tank assembly, remote operated quick connect-disconnect coupling and system using the same |
| 07/13/1989 | DE3744409A1 Process and apparatus for reducing gas emissions from flowing, fluid media with volatile contents |
| 07/13/1989 | DE3743703A1 Process and system for cleaning the sewer pipe of a siphon construction |
| 07/11/1989 | US4845914 Double weep hole drain and method |
| 07/05/1989 | EP0323393A2 Device for regulating the flow of a fluid from a container |
| 06/29/1989 | WO1989005889A1 Drainage fitting for a tiled floor |
| 06/29/1989 | DE3804596A1 Gully fitting for a tiled floor |
| 06/29/1989 | DE3742421A1 Continuous-flow tank |
| 06/27/1989 | US4842785 Method for installing gasket in a poured concrete structure |
| 06/22/1989 | DE3741437A1 Headwater-controlled throttle device for the regulated run-off of built-up quantities of water, especially quantities of sewage |
| 06/21/1989 | CN2039718U Directly draining type multi-purpose back-flow-proof floor-drain |
| 06/20/1989 | CA1255965A1 Pump with continuous inflow and pulsating outflow |
| 06/15/1989 | DE3831896A1 Gulley for road and bridge drainage |
| 06/13/1989 | US4839051 Waste water flows through sloping zone containing soil and plants; free of chemical additives |
| 06/13/1989 | US4839050 Skimmer system |
| 06/13/1989 | US4838439 Hoist for use at a manhole |
| 06/13/1989 | CA1255630A1 Device for removing screened or sifted material from liquid flowing in a gutter |
| 06/08/1989 | DE3546561C2 Subatmospheric-pressure sewerage system with a multiplicity of domestic service connections |
| 06/06/1989 | US4836919 Device for removing waste material screened or filtered out of liquid flowing throgh a channel |
| 06/01/1989 | WO1989004895A1 Telescopic well or column pipe |
| 05/31/1989 | EP0317919A1 Locking device for manhole covers or other ground openings |
| 05/23/1989 | US4832375 Drainage element |
| 05/23/1989 | US4832227 Split lid for sewage basins |
| 05/05/1989 | WO1989003917A1 Flushing arrangement |
| 04/26/1989 | EP0312784A2 Sanitary pump station |
| 04/20/1989 | WO1989003460A1 Apparatus for keeping a rain water well unfrozen |
| 04/20/1989 | DE3831362A1 Self-unstoppering throttle-slide-valve arrangement |
| 04/19/1989 | EP0312271A1 Vortex valves |
| 04/18/1989 | US4822213 Narrow accessway sewage collection tank assembly, remote operated quick connect-disconnect coupling and system using the same |
| 04/06/1989 | DE3732136A1 Light liquid separator |
| 04/05/1989 | EP0310488A1 Inspection manhole for fluid transport installations |
| 03/30/1989 | DE3814322A1 Damping insert with web bearing |
| 03/29/1989 | EP0308949A2 Light liquids separator |
| 03/21/1989 | CA1251331A1 Plant for treatment of urban runoff water |
| 03/15/1989 | EP0183767B1 Tubular trash net for pre-treating sewage |
| 03/02/1989 | DE3827042A1 Drainage channel for roadways, pedestrian and parking areas |
| 02/21/1989 | USRE32870 Sewer relief valve |
| 02/09/1989 | DE3725392A1 Discharge controller for retaining chambers in sewerage systems |
| 02/08/1989 | EP0302174A1 Drainage gully with a subsequently fittable quick-closure device |
| 01/31/1989 | US4800907 Storage space for liquids, with a flushing device |
| 01/11/1989 | EP0298199A2 Water feeding system for aircraft |
| 01/10/1989 | US4797208 To prevent or minimize clogging problems especially in grease |
| 01/10/1989 | CA1248429A1 Sewage pumping station |
| 01/03/1989 | US4794956 Air conduit for manhole |
| 12/29/1988 | DE3720365A1 Method for separating off light liquids from water and apparatus for carrying out the method |
| 12/15/1988 | DE3816378A1 Tipping flush |
| 12/15/1988 | DE3719068A1 Vacuum pumping station for sewage |
| 12/07/1988 | EP0293515A2 Device for removing solids from liquid flowing in a sewer |
| 12/07/1988 | EP0293513A1 Method for activating the locking mechanismus of a float operated valve of a flushing chamber for flushing a liquid storage tank and device for carrying out this method |
| 12/06/1988 | CA1245832A1 Monolithic precast invert system and method |
| 11/24/1988 | DE3716153A1 Tank for a sewage-pumping station |
| 11/24/1988 | DE3714947A1 Retention system for combined sewage comprising sewage (waste water) and storm water |
| 11/23/1988 | EP0291574A2 Filter rake |
| 11/23/1988 | EP0291518A1 A device for water drains and a filter means for use with same |
| 11/02/1988 | EP0288885A1 Sheet metal grating for gutters |
| 11/02/1988 | CN87102840A Device for draining soils in depth |
| 10/26/1988 | EP0287601A1 Water reservoir |
| 10/05/1988 | EP0285600A1 Floor drain |
| 10/05/1988 | EP0285570A1 Plunging wall for basins and clarifier tanks |
| 09/28/1988 | CN87206383U Anti-stealing well cover and sewer cover |
| 09/27/1988 | CA1242396A1 Tubular trash net |
| 09/21/1988 | EP0282906A2 Grease separator |
| 09/21/1988 | EP0211058B1 Liquid storage space with scavenging device |
| 09/21/1988 | EP0159358B1 Device for regulating the flow of a fluid from a container |
| 09/15/1988 | DE3707285A1 Process for separating off light liquids, predominantly from flowing waters |
| 09/07/1988 | EP0280872A1 Device for securing a cover closing an opening |
| 09/07/1988 | CN87216218U Tri-rope rake type differential dirt cleaning machine for grids and railings cleaning |
| 08/31/1988 | EP0280648A1 Cleaning device for sewage treatment basins |
| 08/17/1988 | EP0278746A2 Air admittance valve for use in drainage systems |
| 08/11/1988 | DE3702013A1 Process and device for the separation of exhaled, volatile substances in piping and vessels containing liquid media |
| 08/03/1988 | EP0276861A2 Mobility separator with automatic shut-off |
| 08/03/1988 | CN87206167U Construction installation with shifting formwork along concrete wall of sewage lifting station |
| 07/28/1988 | DE3801036A1 Automatic air-outlet device for fluid-channelling pipelines, with a pressure-compensation system |