| Patents for E03F 5 - Sewerage structures (11,230) |
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| 10/15/1992 | DE4111940A1 Support bracket and stop for flushing tank - has flushing tank which rotates to discharge its contents and stop is incorporated into support bracket to limit extent of rotation |
| 10/13/1992 | US5154024 Floor sink/drain installation method and apparatus |
| 10/01/1992 | DE4137768C1 Automatic hoist with downwards open bell - has outlet tube, whose top end retains movably top-open float pot |
| 09/30/1992 | EP0505734A2 Separator for the purification of waste waters contaminated with floating and suspended matters |
| 09/30/1992 | EP0425530B1 Closure device for drainpipes |
| 09/29/1992 | US5151185 Light-liquid separator |
| 09/24/1992 | DE4108967A1 System isolator, esp. for protecting drinking water systems against contamination - has float and float switch controlling delivery valve and pumps according to level of medium |
| 09/23/1992 | EP0504250A1 Filter arrangement. |
| 09/22/1992 | US5149434 Gravity separator |
| 09/17/1992 | WO1992015757A1 Fluent mixture separation |
| 09/17/1992 | DE4108217A1 Floor drain with automatic anti-flooding valve - has overflow with sealed chamber, to trap air, behind flap trap |
| 09/16/1992 | EP0503209A1 Regulating device for changing the cross section of the discharge opening of an equalizing reservoir, especially a rain water storage basin |
| 09/15/1992 | CA1307418C Covering for a ground opening |
| 09/09/1992 | EP0502493A1 Clamping device for floor drains |
| 09/03/1992 | WO1992014889A1 Inverted siphon of vacuum type sewerage |
| 08/27/1992 | DE4105066A1 Dewatering gulley with odour closure - has odour closure formed as releasable insert into body and one axial end as downwardly open input box |
| 08/27/1992 | DE4104451A1 Rain overflow arrangement with measurement system for overflow reservoir - has several measurement devices with different ranges connected in series and=or in parallel |
| 08/20/1992 | DE4125419A1 Rain overflow and associated basin - is for rainwater treatment and discharge plant and incorporates sieve devices and has input from canalisation |
| 08/12/1992 | EP0498676A2 Improved process and apparatus for groundwater extraction using a high vacuum process |
| 08/12/1992 | CN1017815B Buoyancy starting siphonage device |
| 08/06/1992 | WO1992012930A1 A sewage well or a small sewage purification plant |
| 08/06/1992 | DE4103164A1 Purifying effluent water contg. sedimenting and floating substances - by passing through sludge trap, gravity separator and coalescence separator which is periodically cleaned by backwashing |
| 08/06/1992 | DE4103157A1 Waste water pumping system - has non-return valves in outlet pipe to reduce pumping energy requirements |
| 08/05/1992 | EP0419607B1 Drainage device for a flagged floor |
| 08/04/1992 | US5135331 Covering element for drainage channels |
| 07/29/1992 | CN1063134A Sewer pit with silt-removing channel |
| 07/23/1992 | DE4101456A1 Rainwater relief structure with outlet to clarifier - has drum screen in overflow region with forced feed from relief structure |
| 07/23/1992 | DE4101173A1 Sepg. floating and sinking impurities from waste water |
| 07/21/1992 | US5132010 In-line oil-separating equipment with meandering flow |
| 07/21/1992 | US5131433 Apparatus for blocking fluid flow through a conduit |
| 07/16/1992 | DE4111936C1 Rapidly installed sewage treatment plant - has concrete foundation, from which supports extend vertically to roof over plant cylindrical chambers with supply line |
| 07/14/1992 | US5130016 Drain grate |
| 07/14/1992 | US5129413 Self washing storage tank |
| 07/08/1992 | EP0494060A1 Floor drain insert |
| 07/01/1992 | CN2108758U Deodorising gulley of confluence sewerage system |
| 06/24/1992 | CN1062183A Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 06/23/1992 | US5124031 Surface drain for a tiled floor |
| 06/23/1992 | CA1303943C Catch flow restrictor |
| 06/16/1992 | US5122263 Continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
| 06/10/1992 | EP0489676A1 Gulley-grid and connecting means therefor |
| 05/27/1992 | WO1992009753A1 Cap for a shaft |
| 05/27/1992 | EP0486954A2 Water-trap |
| 05/27/1992 | CN2105531U Rotary sewage purification plant |
| 05/26/1992 | US5116516 Deflector plates; low energy; sewage treatment |
| 05/20/1992 | WO1992008532A1 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 05/20/1992 | EP0439522B1 A plastic storage tank |
| 05/19/1992 | US5114280 Vacuum type sewage collecting system and vacuum valve controller for the same |
| 05/19/1992 | US5114274 Sewage tank system and method of construction |
| 05/14/1992 | DE4136292A1 Sealing device for water drain in building - consists of plate with seal and bracket fastened to floor |
| 05/14/1992 | DE4035130A1 Waste water purificn. appts. - with annular housing portions joined by clamped sealed flanges |
| 05/12/1992 | CA1300416C Ground water drain |
| 05/07/1992 | DE4033957A1 Back flow seal for floor drain - comprises floating ball lifted by back pressure to form seal with elastic ring |
| 05/06/1992 | EP0483508A2 Separator for settling and/or floating materials |
| 05/05/1992 | US5110235 Locking component for securing a cover on a frame |
| 05/05/1992 | CA1299881C Apparatus for keeping a rain water well unfrozen |
| 04/30/1992 | WO1992008059A1 Vortex valves |
| 04/30/1992 | CA2095246A1 Vortex valves |
| 04/28/1992 | US5108227 Telescoping frostproofing sleeve expandable to frost depths of area |
| 04/22/1992 | EP0481937A1 A 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 |
| 04/21/1992 | US5105974 Liquid level sensor cover for waste holding tank |
| 04/16/1992 | DE4029745A1 Bolting mechanism for drain duct etc., cover |
| 04/15/1992 | CN2101702U Precast concrete movable grating for wellhead |
| 04/07/1992 | US5101849 Baffle for a sewage tank and method of installation |
| 04/01/1992 | EP0477745A1 Measurement apparatus submerged measurement weir |
| 03/26/1992 | DE4124006A1 Storage tank for water - is arranged for ease of cleaning coarse filter and tank floor |
| 03/26/1992 | DE4029603A1 Disposal of fluids mixed with solids - involves separation of floating and sinking solids before pumping |
| 03/25/1992 | EP0476672A1 Device for lockably holding a cover on a drainage channel in a traffic road surface |
| 03/25/1992 | CN2099788U Turning board type stink-proof floor drain |
| 03/19/1992 | WO1992004667A1 Flow controlling device for a discharge system such as a drainage system |
| 03/12/1992 | DE4127996A1 Distribution structure for water-endangering materials - incorporates through-hole pipe in shaft bottom level with second outlet |
| 03/12/1992 | DE4028794A1 Measuring installation choking waste water throughput - contains inductive flow meter, electrically driven slider and electronic controller |
| 03/10/1992 | CA1296872C Adjustable clamping band for gaskets and method for using same |
| 03/04/1992 | EP0473361A2 Drain guard |
| 03/04/1992 | CN2097860U Net type anti-stop box |
| 03/03/1992 | CA1296653C Cantilevered flight attachment for nonmetallic chain |
| 02/26/1992 | EP0472509A1 A method and a device for automatic circulation in a waste water pump station |
| 02/26/1992 | CN2097236U Closed anti-theft gully grating |
| 02/13/1992 | DE4025465C1 Waste water rain catch basin - has circular funnel with sludge sump and tangential inlet flow |
| 02/13/1992 | DE4025463A1 Rain water tank for sepg. light and heavy impurities - restricts outflow flow to raise water level above normal and trap floating impurities, and collects sediment |
| 02/12/1992 | CN2095895U Dredge filter |
| 02/12/1992 | CN2095894U Anti-overflow device for drainage |
| 02/11/1992 | US5086800 Multi-tank liquid variable container storage system |
| 02/06/1992 | DE4125039A1 Assembly aid for water discharge channel - comprises M-shaped clamp made of sprung plate |
| 02/06/1992 | DE4124369A1 Bath-water drainage channel - is assembled from overlapping sections |
| 02/06/1992 | DE4119549A1 Emptying of liq. separators, in separator system - where water is pumped from one separator into another operating in parallel, before first separator is emptied of sepd. material |
| 01/30/1992 | DE4123805A1 Floor outlet for bath and shower - has vertical outlet connection, removable bell type odour closure, and dirt catchment bucket |
| 01/30/1992 | DE4119532A1 Removing materials from separator esp. fat separator - by breaking up solid material using stationary, angled water jets, and then mixing and pumping off |
| 01/29/1992 | CN2094578U Stink smell proof valve for sewer pipe |
| 01/28/1992 | US5083885 Laying structure for vacuum sewer pipe of vacuum sewage collecting system |
| 01/19/1992 | CA2047354A1 Flexible entry seal arrangement |
| 01/16/1992 | DE4119561A1 Odour trap for floor drain - has flow-guiding component fitting onto drain shaft wall |
| 01/15/1992 | CN2093205U Drain pipeline easily to be dredged |
| 01/14/1992 | US5080141 Multiply fabric having center portion with delicate warp threads and lateral portions with robust threads |
| 01/14/1992 | US5080137 Vortex flow regulators for storm sewer catch basins |
| 01/09/1992 | DE4116680A1 Outlet container for sewage handling - comprises basic body with lateral or lower wall aperture accommodating insert part |
| 01/08/1992 | CN2092570U Automatic mud drain controlling apparatus with digital monitoring and measuring devices |
| 01/07/1992 | US5078865 Appliance for the removal of rakings and/or screenings out of liquid flowing in a launder |
| 01/02/1992 | EP0463092A1 Apparatus for forming a trench |
| 01/02/1992 | DE4119154A1 Device for treating wastewater, comprises sludge trap chamber for collecting sludge and solids contained in the wastewater, filter chamber for collecting floats and immiscible light liquids, inlet, outlet and coalescence filter box |
| 12/31/1991 | US5076937 Method for removal of fat, oil and grease from laundry wash water |