| Patents for E03F 5 - Sewerage structures (11,230) |
|---|
| 04/27/1994 | EP0594167A1 Device for removing separable matter from a liquid flowing in a gutter |
| 04/27/1994 | EP0593914A1 Production method for canalisation-related objects comprising frames and covers, more specifically manhole covers |
| 04/27/1994 | EP0593801A1 Container for dewatering or packaging and transportation |
| 04/21/1994 | DE4243564C1 Run=off rain water outlet - has loosely inserted odour closure part with two counterpoised laterally projecting bearing pins |
| 04/21/1994 | CA2108859A1 Pollution control kit to be used in a water conduit |
| 04/20/1994 | CN1085463A Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants |
| 04/19/1994 | US5303782 Flow controlling device for a discharge system such as a drainage system |
| 04/19/1994 | US5303518 Lined manhole assembly and liner |
| 04/14/1994 | WO1994008146A1 Vortex valves |
| 04/14/1994 | WO1994007585A1 Sewage water installation with an incorporated screening unit |
| 04/14/1994 | DE4234704A1 Sewage lifting plant esp. for wide spread population density with small sewage yield - has at least one feed pump between sewage supply line and sewage pressure line with valves and with level switches for automatic switching on and off of lifting plant |
| 04/12/1994 | US5302088 Water powered sump pump |
| 04/07/1994 | DE4315850A1 Sampling manhole with open channel for sewer pipes - provides for extn. of sample of any desired size with corresp. lowering of plate into broadened chamber. |
| 04/07/1994 | DE4233597A1 Instantaneous sealing of street drains esp. gullies - comprises using container contg. 2 separately stored components sepd by e.g membrane which is ruptured to form expanded hardenable foam inside flexible box covering area to be sealed |
| 04/05/1994 | US5300221 Filter arrangement |
| 04/05/1994 | US5299836 Floor waste fitting support |
| 04/05/1994 | US5299596 Sewer chimney system |
| 04/05/1994 | US5299327 Sewer ventilator system for recreational vehicles, boats and the like |
| 03/31/1994 | DE4327121A1 Drainage pot for sealing conventional gullies - has straight pipe extending freely through aperture of existing, vertical drain pipe |
| 03/31/1994 | DE4323570A1 Sepn. of light liq components, e.g. mineral oils, from contaminated liquids - has sedimentation chamber with coagulation device and second fine filter chamber provided with removable container for different filter materials. |
| 03/31/1994 | DE4232777A1 Ball ventilation valve in waste water pumping systems - has seal with two elastically connected sealing lips between filter and closing ball for sealed closing at all water levels |
| 03/31/1994 | DE4232346A1 Measuring the amount of sludge, liquid fuel or oil in a sepn. tank - includes air pearling sensor fixed to float of limited movement range, reducing complexity of sensor installation and tubes, enhancing results, etc. |
| 03/30/1994 | EP0589829A1 Drainage channel |
| 03/29/1994 | US5298172 Method and apparatus for removing grit from sewage |
| 03/29/1994 | US5297577 Culvert of vacuum sewerage |
| 03/29/1994 | US5297367 Removable storm drainage cartridge |
| 03/23/1994 | EP0588035A2 Separator for with oil and fat polluted sewage |
| 03/23/1994 | EP0588034A2 Superstructure for steet drains and floor drains |
| 03/22/1994 | US5295535 For detecting leakage from an underground storage tank |
| 03/17/1994 | WO1994005867A1 Discharge device |
| 03/17/1994 | CA2143284A1 Discharge device |
| 03/16/1994 | EP0504250B1 Filter arrangement |
| 03/15/1994 | US5293724 Coupling assembly for corrugated decks and method for connecting thereto |
| 03/10/1994 | DE4228173A1 Two=part siphon for waste liquids incorporating odour trap - has reservoir part and siphon pipe sealed together by O=ring on sloping surfaces held together by flanges |
| 03/08/1994 | US5291917 Housing for a vacuum valve unit |
| 03/08/1994 | US5291704 Modular construction joist made up of a high-strength plastic material, particularly suitable for realizing grids, and closure members subjected to pedestrian and vehicle traffic |
| 03/03/1994 | WO1994004758A1 Apparatus for forming a multi-walled containment trench |
| 03/03/1994 | WO1994004464A1 Method and device for the separation of a contaminated top layer |
| 03/03/1994 | DE4228387A1 Domestic sewage outflow - has sepn. of solid and fluid phases to allow only fluid to pass through collection channel into the sewage disposal system |
| 03/03/1994 | CA2139428A1 Apparatus for forming a multi-walled containment trench |
| 03/02/1994 | CN2157950Y Gully grating |
| 03/01/1994 | US5290434 Effluent dosing septic system |
| 02/24/1994 | DE4227523A1 Method for disposal of sepd. material from water treatment plant - has material reduced to pumpable consistency with particle sizes under 10 mm and then mixed with treatment slurry before mechanical dewatering |
| 02/16/1994 | CN2156226Y Comb for sewer |
| 02/09/1994 | EP0582542A1 Sieve grid for rain water spillway |
| 02/09/1994 | EP0581965A1 Solid-liquid separating apparatus |
| 02/08/1994 | US5284580 Refuse collecting frame for sewer |
| 02/03/1994 | WO1994002251A1 Device for centrically charging circular tanks |
| 02/03/1994 | CA2119238A1 Device for centrically charging circular tanks |
| 01/27/1994 | DE4320980A1 Waste water cleaning assembly - has insert in concrete container to separate grease and oil from vehicle washing station waste water |
| 01/27/1994 | DE4224047A1 Vorrichtung zur zentrischen Beschickung von Rundsandfängen und Sandklassierern in Rundbauweise Device for the central charging of circular grit traps and grit classifiers of circular construction |
| 01/26/1994 | EP0580558A1 Device for the control of elevating pumps in a drainage installation or similar |
| 01/25/1994 | US5281052 Multi-containment trench system |
| 01/25/1994 | US5280872 Vacuum valve for a sewage collection system |
| 01/20/1994 | DE4223259A1 Flap type weir with horizontal threshold bounded by two side walls - has flap, whose one edge is non-rotatably and sealingly secured to threshold |
| 01/19/1994 | EP0578852A1 A sewage well or a small sewage purification plant |
| 01/13/1994 | DE4327235A1 Water treatment overflow pipe assembly - has folding membrane giving flow independent of water depth and preventing sludge blockages |
| 01/13/1994 | DE4214113A1 Waste water shaft with units for sewage sample removal and taking sewage parameters - uses probe(s) immersed in waste water supplied and drained by gutter penetrating at right angles to shaft |
| 01/05/1994 | EP0577548A1 Syphon device for drains |
| 01/05/1994 | EP0576981A1 Flushing device for flushing an emptied liquid storage space automatically, in particular a rain water or a sewage storage tank |
| 01/05/1994 | DE4221374A1 Cleaning equipment for rain basin - uses basin water for cleaning purposes with washing pipe arrangement rotatably located around vertical axis and driven by back thrust |
| 12/29/1993 | CN2151191Y Drain cover with splint pin to prevent stealing |
| 12/23/1993 | WO1993025771A1 Drywell cover and drywell |
| 12/23/1993 | CA2138386A1 Drywell cover and drywell |
| 12/08/1993 | EP0572886A1 Flow regulator for the outlet of a liquid container |
| 12/07/1993 | US5268096 Where sidewall and bottom met |
| 12/02/1993 | CA2075236A1 Filter system |
| 11/25/1993 | DE4216850A1 Rain water collecting beaker - has dirty water drain in base of ringed wall section having sloping walls and has cover set on supports lying on wall rim |
| 11/25/1993 | DE4216615A1 Continuous panel laying over gutter openings in flat roof with planted vegetation - involves partitioning gutter opening region by perforated angled profiled rails, embedded in grooves at panel size grid. |
| 11/23/1993 | US5264134 Tethered bags |
| 11/23/1993 | US5263298 Procedure for making in-situ manholes for underground electric and telephone lines ductwork |
| 11/17/1993 | CN2146523Y Sewage sludge open gate |
| 11/16/1993 | US5261933 Vent gas deodorizing system |
| 11/09/1993 | CA1324175C Locking device for coverings for manholes and other ground openings |
| 10/28/1993 | WO1993020918A1 Method and inlet device for feeding flat sand traps and settling tanks |
| 10/28/1993 | DE4213682A1 Stirrer moving device having drive switching mechanism |
| 10/27/1993 | EP0433410B1 Manhole cover |
| 10/21/1993 | DE4312007A1 Liq. separator has valve in equalisation chamber/heavy liq. outlet connection - valve controlled by float closes heavy liquid outlet when inflow of mixed liquid ceases and opens it when heavy-liquid level in equalisation chamber is reached |
| 10/21/1993 | DE4304268A1 Supplying waste water to traps and sedimentation tanks - in which inlet chamber has flat floor plate supporting curved flow control plate. |
| 10/21/1993 | DE4212708A1 Automatic fluid siphon device - has hose, which passes through discharge tube and bell, to open into vessel containing siphon |
| 10/20/1993 | EP0565921A2 Rain water treating and conveying installation for use as industrial water or for treatment for the purpose of infiltration or inflow in receiving water |
| 10/20/1993 | EP0565898A1 Device for separating solid matter from a liquid with a cylindrical liquid permeable separating surface and for removing solid matter |
| 10/20/1993 | EP0565873A1 Device for compressing and washing of polluted solid matter, especially in purification plants |
| 10/14/1993 | WO1993020294A1 Chain conveyor or scraper, in particular for sewage installations |
| 10/14/1993 | DE4212205A1 Swimming pool trough drain - has pipe extension above trough bottom with strainer perforations and closed by top cap into which inner pipe in drain-pipe protrudes |
| 10/14/1993 | DE4211806A1 Intake for sewage pump with solids shredder - has spiral tapering passage round pump inlet accelerating sewage and generating rotary motion |
| 10/13/1993 | EP0565483A1 Basin in a waste water plant |
| 10/13/1993 | EP0564870A1 Device for removing solids from a liquid with a cylinder-shaped and permeable surface |
| 10/07/1993 | DE4211123A1 Removing oil film from water - using lifting helix screw which is immersed in water at inclined angle. |
| 10/06/1993 | EP0564068A1 Housing for a vacuum valve unit |
| 10/06/1993 | EP0511363A4 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 10/05/1993 | US5249398 Cesspool |
| 09/30/1993 | WO1993019258A1 Manholes and inspection chambers |
| 09/30/1993 | WO1993019257A1 Prefabricated channel element for drain catch basins |
| 09/30/1993 | DE4302625A1 Accessible collection shaft for connection of branch canals - has raceway on inside wall, which opens into main canal |
| 09/28/1993 | US5248219 Sewage tank system and method of construction |
| 09/23/1993 | DE4206768A1 Emergency cover for road drains - has foam covered sealing plate with spring loaded locking handle |
| 09/16/1993 | DE4208098A1 Seal for heating oil ventilation valve - using float shaped as inverted pear with circular base which locates into inclined recess. |
| 09/15/1993 | EP0559670A1 Cap for a shaft. |
| 09/08/1993 | EP0559085A1 Drain for floor or terrace |