| Patents for E03F 5 - Sewerage structures (11,230) |
|---|
| 08/29/1990 | EP0383884A1 Clamping ring. |
| 08/28/1990 | US4952094 Ground water drain |
| 08/23/1990 | WO1990009352A1 A device for the mechanical separation of insoluble solids from a liquid containing said solids |
| 08/14/1990 | US4948351 Pressure sewer pumping system with check valve arrangement |
| 08/14/1990 | US4948342 Method and device for automatic circulation in a waste water pump station |
| 08/14/1990 | CA1272659A1 Gas-sealing insert for floor drains |
| 08/02/1990 | DE3930155A1 Oil sepn. from horizontally flowing liq. - with transverse barrier of flow-directing apertured plate preceded by mesh structure |
| 07/26/1990 | DE3902155A1 Waste water purification apparatus |
| 07/24/1990 | US4943100 Drain suited for installation in wooden floors |
| 07/19/1990 | DE4000511A1 Drainage opening for paved surface - is covered with grid which can be adjusted for height |
| 07/17/1990 | US4941643 Apparatus for forming inverts and manhole assemblies and the like utilizing adjustable invert forming members joined with an intermediate flexible portion |
| 07/12/1990 | DE3900302A1 Process and apparatus for evening out discharge-water quantities from stormwater retention tanks |
| 07/10/1990 | US4940539 Grease trap construction |
| 07/04/1990 | EP0376425A2 Apparatus for ventilating an enclosure accessed by a manhole |
| 07/04/1990 | EP0216808B1 Collector for liquids, with emptying system |
| 07/03/1990 | US4938241 RV sanitary dumping bay and potable water system |
| 06/26/1990 | US4936338 Floating drain seal apparatus |
| 06/21/1990 | DE3842860A1 Process and plant for treating waste waters laden with light liquids |
| 06/21/1990 | DE3842012A1 Apparatus for the underground storage of rainwater in a compartment-type storage means |
| 06/19/1990 | US4935132 Drain pipe filter |
| 06/13/1990 | EP0372963A1 Apparatus and method for improved pipe to manhole sealing |
| 06/13/1990 | DE3902791C1 Road gulley, in particular bridge gulley |
| 06/13/1990 | DE3841198A1 Apparatus for oil separation |
| 06/07/1990 | DE3840971A1 Process and device for making pumpable the floating layer in a low-density separator |
| 06/06/1990 | EP0371917A1 Capping frame for a drainage channel |
| 06/06/1990 | EP0371068A1 Drainage fitting for a tiled floor. |
| 05/31/1990 | DE3840125A1 Slide-valve device |
| 05/30/1990 | EP0370430A2 An arrangement with a drainage receptacle and a method of casting such a receptacle or a bottom section for same |
| 05/30/1990 | EP0370221A1 Method of limiting discharge flows from a container for liquids |
| 05/16/1990 | EP0368192A2 Roadway water drainage installation |
| 05/16/1990 | EP0368084A1 Separator for non-miscible liquids |
| 05/15/1990 | US4925375 Device for automatic circulation in a waste water pump station |
| 05/10/1990 | DE3837638A1 Method for taking off floating material from gravity separators |
| 05/10/1990 | DE3837150A1 Process for securing filling, discharging and decanting stations for environmentally hazardous fluids |
| 05/08/1990 | US4922948 Floor drain and trap |
| 05/03/1990 | WO1990004686A1 A plastic storage tank |
| 05/02/1990 | CN1041805A Septic tank with automatic sewage drainer |
| 04/26/1990 | DE3836058A1 Sammelbehaelter aus kunststoff Plastic collection |
| 04/24/1990 | US4919343 Anti-flooding sewage grinder pump liquid level control system in separately mounted canister |
| 04/19/1990 | DE3928681A1 Storm sewage screen - with perforated alloy steel plate in zigzag folds or corrugations |
| 04/18/1990 | EP0363751A2 Device to collect polluted cleaning water produced when washing a motor vehicle |
| 04/17/1990 | US4917147 Backwater escape valve |
| 04/17/1990 | US4917143 Inlet vacuum valve with quick-release mounting apparatus for unit controller |
| 04/17/1990 | CA1267853A1 Drainage element |
| 04/11/1990 | EP0362343A1 Interceptors |
| 04/05/1990 | DE3926590A1 Movable tilt flushing device for two-storey rain-water basins - has two tip-up devices one each above and and lower basins |
| 04/05/1990 | DE3832992A1 Road or bridge gulley |
| 03/27/1990 | US4911832 Automatic drain system treatment apparatus |
| 03/27/1990 | US4910811 Plastic floor drain |
| 03/21/1990 | EP0359730A1 A device for automatic circulation in a waste water pump station |
| 03/21/1990 | EP0359592A2 Oil separator |
| 03/21/1990 | EP0358857A1 Drain manhole |
| 03/20/1990 | US4909660 Grating with a locking mechanism |
| 03/14/1990 | EP0358245A1 Sewage transporting device |
| 03/14/1990 | CN2054473U Weight-increasing mechanism of grillage mud-cleaning machine tine harrow |
| 03/13/1990 | US4908127 Device for the collection of various substances present in a liquid |
| 03/08/1990 | WO1990002232A1 Clamping ring |
| 03/08/1990 | DE3829229A1 Apparatus for conveying a liquid, in particular sewage-lifting plant |
| 03/07/1990 | EP0357576A2 A water container |
| 02/28/1990 | EP0355869A2 Light liquids separator |
| 02/28/1990 | EP0355327A2 Grease separator |
| 02/27/1990 | US4903737 Producing a multi-ply fabric on a loom having auxiliary end reeds |
| 02/22/1990 | DE3823664C1 Separating device for sewage |
| 02/15/1990 | DE3826968A1 Separator for oils and fats situated, in particular, in waste waters |
| 02/14/1990 | EP0354236A1 Narrow accessway sewage collection tank assembly, remote operated quick connect-disconnect coupling and system using the same |
| 02/08/1990 | WO1990000651A3 Water backup preventing system and monitoring system therefor |
| 01/25/1990 | WO1990000652A1 Closure device for drainpipes |
| 01/25/1990 | WO1990000651A2 Water backup preventing system and monitoring system therefor |
| 01/17/1990 | EP0350579A1 Light liquids separator |
| 01/17/1990 | CN1038858A Method and apparatus for controlling pumps in drainage system |
| 01/11/1990 | DE3823121A1 Shaft, in particular absorbing well for refuse landfills |
| 01/10/1990 | EP0349752A1 Covering of a manhole by means of a lid or a grating |
| 01/09/1990 | US4892440 Water backup preventing system and monitoring system therefor |
| 01/09/1990 | CA1264205A1 Drain fitting with frictional seal retention |
| 01/02/1990 | US4890425 Airtight sump crock cover |
| 12/26/1989 | US4889166 Vortex valves |
| 12/21/1989 | DE3820773A1 Process and apparatus for the compressed-air emptying of retention tanks |
| 12/21/1989 | DE3820142A1 Fresh fat separator |
| 12/19/1989 | US4887933 Drain pipe shield |
| 12/14/1989 | DE3918321A1 Gulley with an odour-seal insert |
| 12/14/1989 | DE3819562A1 Process and apparatus for reducing sediments in combined-sewage syphons |
| 12/13/1989 | CN2049241U Excrement separating and digesting device of septic tank |
| 12/12/1989 | US4886426 Submergible pump connecting ejector adapter and guide rail assembly |
| 12/07/1989 | DE3844586A1 Throttle device |
| 12/07/1989 | DE3818580A1 Light-liquid trap |
| 12/07/1989 | DE3818579A1 Separator for floating and/or suspended matter |
| 12/06/1989 | EP0345222A2 Grating and support frame therefor |
| 11/30/1989 | DE3817444A1 Float-controlled regulating device for changing the flow cross-section of the outlet opening of a liquid container, especially a rain retention basin |
| 11/29/1989 | EP0343435A1 Float actuated control device for changing the flow section of an outlet opening of a compensation basin, specially of a retention basin for rainwater |
| 11/28/1989 | US4883590 Adjustable floor drain apparatus |
| 11/28/1989 | US4883394 Cover with integral fastening means |
| 11/14/1989 | US4879771 Floor clean-out assembly |
| 11/09/1989 | DE3813985A1 Attachment device for rain-inlet shafts or similar structural parts |
| 11/08/1989 | EP0340377A1 A method for treating garbage and a device for performing the method |
| 11/02/1989 | EP0339354A1 Method of and apparatus for treatment of sewage screenings |
| 11/02/1989 | DE3812061A1 Light liquid separator |
| 10/26/1989 | DE3912294A1 Ground (floor) gully |
| 10/19/1989 | WO1989009857A1 Rainwater storage |
| 10/18/1989 | EP0337110A1 Floor water-drain |
| 10/17/1989 | US4874105 Valve box |