| Patents for E03F 5 - Sewerage structures (11,230) |
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| 09/01/1993 | EP0429593B1 Device for separating light liquids |
| 08/25/1993 | EP0557030A1 Washing apparatus |
| 08/22/1993 | WO1993016867A1 Solid-liquid separating apparatus |
| 08/18/1993 | EP0555735A1 Method of manufacture of concrete and reinforced concrete basins |
| 08/18/1993 | EP0555672A1 Separator for light material from waste water, i.e. high-viscous light material or light material coagulating during cool down |
| 08/11/1993 | EP0554580A1 Apparatus for separating solids from a flowing liquid, method of operation and use of the apparatus |
| 08/11/1993 | CN2139961Y Vertical sewer grate on road |
| 08/05/1993 | DE4303058A1 Oil separator unit - comprises cylindrical container divided into coarse oil separator and connected coarse separator and outlet issuing from residual separator |
| 08/03/1993 | US5232587 Stormwater inlet filter |
| 07/27/1993 | US5230188 Building entrance boot drain |
| 07/14/1993 | EP0550980A1 Vacuum valve for a sewage collection system |
| 07/14/1993 | CN2138147Y Indoor waste water collector |
| 07/13/1993 | CA1320286C Grease trap system |
| 07/13/1993 | CA1320234C Floor clean-out assembly |
| 07/13/1993 | CA1320150C Device for removing waste material |
| 06/30/1993 | EP0548432A1 Automatic lifting device for domestic waste water |
| 06/30/1993 | EP0548149A1 Flow controlling device for a discharge system such as a drainage system. |
| 06/29/1993 | US5223154 Controlling water pollution |
| 06/23/1993 | EP0547425A1 Strainer for water and waste water purification plant |
| 06/17/1993 | DE4241178A1 Floating matter sepn. system for fluids - has settling chamber and precipitating chamber with walls for part flows, for hazardous matter removal |
| 06/17/1993 | DE4140992A1 Twin compartment, single pump emptying, aqueous effluent interceptor - includes fat separation, is suitable for foodstuff and fat rendering industries |
| 06/16/1993 | CN1073242A Vacuum siphon for sewer pipe |
| 06/15/1993 | CA2085286A1 Screening installation for water and waste water treatment plants |
| 06/10/1993 | WO1993011313A1 Method and device for controlling a flow of fluid |
| 06/09/1993 | DE4140150A1 Throttle valve for discharge flow - has closure pivot displaced relative to flow, on one side of closure element. |
| 06/08/1993 | US5216767 Drainage enhancer for double seepage drains |
| 06/03/1993 | DE4139572A1 Sieve for circular plan rain water gulley - where sieve is automatically cleansed by prongs rotated by flow of water |
| 06/02/1993 | EP0544119A1 Shut-off device for road gullies |
| 06/02/1993 | EP0544096A1 Device for removing solid matter from a liquid flowing in a channel |
| 06/02/1993 | EP0544029A1 Guide cap for floating barrage |
| 05/27/1993 | DE4138293A1 Odour trap for street drain - allows water to flow into drain pipe but prevents return flow of odorous fumes |
| 05/19/1993 | EP0542032A1 Cover for closing an inspection and cleansing opening in a sewage pipe |
| 05/12/1993 | CN2132787Y Self-cleaning storm-water inlet |
| 05/11/1993 | US5209257 Sewer relief valve |
| 05/06/1993 | DE4135921A1 Sluice formation in service shaft - has loose/pivoted cover plate, fixed in place in sluice top, and with grips |
| 04/29/1993 | DE4143376A1 Unit for removal of floating and suspended matter and sand from supply channel of clarification plant - comprises grid or sieve, screw conveyor sepn. device and a classifying conveyor |
| 04/28/1993 | CN2130860Y Anti-theft iron gully grating |
| 04/21/1993 | EP0537797A1 Compact type-device for separating and removing rakings and sand from a gully |
| 04/21/1993 | EP0537552A1 Locking device for a grating on a frame |
| 04/21/1993 | EP0537442A2 Coverplate for gutters, especially for drainage of sports field, playgrounds and the like |
| 04/20/1993 | CA1316561C Floor drain plate assembly |
| 04/15/1993 | WO1993007345A1 Water retention reservoir structure |
| 04/13/1993 | US5202019 Device for the mechanical separation of insoluble solids from a liquid containing said solids |
| 04/07/1993 | EP0535375A1 Process for preventing the introduction of wrongly directed thrash from a rainwater-channel to the receiving channel and installation for carrying out the process |
| 03/30/1993 | CA1315176C Device for automatic circulation in a waste water pump station |
| 03/24/1993 | EP0533075A1 Liquid separator |
| 03/18/1993 | WO1993005248A1 Separator means for separating problem waste from effluent |
| 03/17/1993 | EP0532484A1 Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants |
| 03/17/1993 | CN2128268Y Combination floor drain with borizontal drainage |
| 03/11/1993 | DE3943607C2 Flow regulator esp. for waste water channels |
| 03/10/1993 | EP0530203A1 Improvement in a sewage system. |
| 03/09/1993 | US5192156 Drain apparatus with liquid trap |
| 03/03/1993 | EP0529082A1 Inverted siphon of vacuum type sewerage |
| 03/02/1993 | CA1313989C Narrow accessway sewage collection tank assembly, remote operated quick connect-disconnect coupling and system using the same |
| 02/18/1993 | DE4126736A1 Single stage waste water purificn. plant - has aeration tank with rotary aeration bridge having turbulator propeller, for increased purificn. capacity e.g. denitrification |
| 02/14/1993 | CA2072690A1 Transporting element of a reciprocable scraper for moving sludge in settling basins and similar objects at water purification plants |
| 02/11/1993 | DE4126382A1 Separator for extracting solids from fluids - has central shaft and compressed supply to worm screw where solids are extracted and not mixed up |
| 02/10/1993 | EP0526744A1 Manhole shaft element and manhole shaft |
| 02/03/1993 | EP0525348A1 Sandcollector for separating and removing sand from a gully, particularly from a wastewater purification plant |
| 01/28/1993 | DE4124783A1 Oscillating sweep propeller agitator system - for reducing sedimentation in drainage water basins e.g. storm water overflow tanks |
| 01/27/1993 | EP0524833A1 Grating |
| 01/27/1993 | EP0524340A1 Device for rainwater overflow basin |
| 01/27/1993 | CN1068383A Integral septic tank |
| 01/21/1993 | WO1993001000A1 Process and device for improving the treatment of sewage solids, sand, rubbish or the like |
| 01/21/1993 | DE4136401A1 Motorised rake for cleaning settlement sludge. - comprising circular rotating fork arranged around grid and worm screw lift for removing solids from waste fluids |
| 01/20/1993 | EP0523389A1 Drainage water pumping station |
| 01/19/1993 | US5179752 Cover for trenches |
| 01/14/1993 | DE4222128A1 Sewage solids removal - involves applying eddy action to wash solids for extraction to leave liq. and organic matter |
| 01/14/1993 | DE4121392A1 Long sand collector - esp. for sand removal from waste water feed to clarification plant |
| 01/14/1993 | DE4120846A1 Equipment for pretreatment of strongly contaminated water - involves worm pump delivering water from input to a higher located duct and having extension in which the worm works |
| 01/13/1993 | EP0521888A1 Method and apparatus for removing grit from sewage. |
| 01/13/1993 | EP0521885A1 Apparatus for preventing water damage due to plumbing leaks in buildings. |
| 01/07/1993 | WO1993000489A1 Elongated sand catcher for separating and removing sand from flume channels, in particular of sewage treatment plants |
| 01/07/1993 | EP0521406A1 Device for the separation of floating and settling matters from waste water contaminated with these matters |
| 01/07/1993 | DE4121722A1 Float valve for sewage sedimentation tank - has exit valve consisting of float arranged to allow fine sediment to exit with settled water |
| 01/05/1993 | US5176825 System for treating food waste by centrifugal spin drum and bag filter |
| 01/05/1993 | CA1312258C Water backup preventing system and monitoring system therefor |
| 12/23/1992 | WO1992022714A1 Floor drain with fitting assembly and installation method for floor drain |
| 12/23/1992 | CN2125625U Safety theft-proof grate for sewer |
| 12/22/1992 | US5172764 Process and apparatus for groundwater extraction using a high vacuum process |
| 12/10/1992 | WO1992021837A1 Debris diverter and filtration method |
| 12/10/1992 | WO1992021819A1 Drain apparatus with liquid trap |
| 12/10/1992 | DE4215003A1 Grid and combing arrangement for rainwater collection chamber - has motor-oscillated grids arranged over combs to remove obstructions |
| 12/10/1992 | DE4215002A1 Grid and combing arrangement for rain water collection chamber - has comb swung to=and=fro through grid by motor to clear grid of obstructions |
| 12/09/1992 | CN2124272U Theftproof grate for storm-water inlet |
| 12/04/1992 | CA2063304A1 Telescoping frostproofing sleeve expandable to frost depths of area |
| 12/02/1992 | EP0458808B1 A device for the mechanical separation of insoluble solids from a liquid containing said solids |
| 11/26/1992 | DE4116919A1 Water cleaning - has catch basin for overflow of water and air mixt. for sepn. by gravity into pptd. and floating portions |
| 11/19/1992 | EP0463092A4 Apparatus for forming a trench |
| 11/11/1992 | EP0512538A1 Liquid separator |
| 11/11/1992 | EP0512157A1 Separator |
| 11/11/1992 | EP0512027A1 Floor drain. |
| 11/10/1992 | US5161958 Valve device for automatic circulation in a waste water pump station |
| 11/10/1992 | US5161911 Water backup preventing system and monitoring system therefor |
| 11/04/1992 | EP0511363A1 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 11/03/1992 | US5160213 Covering for a ground opening |
| 10/29/1992 | DE4213847A1 Sewage cleaning device for sewage treatment plant - has driven conveyor worm, extending through collection basket and part of inclined conveyor channel |
| 10/22/1992 | DE4112502A1 Fat separator e.g. for abattoir waste water - has water outlet in form of riser pipe with inlet near pit floor and outlet outside top of pit, for improving gravity sepn. performance |
| 10/21/1992 | EP0509422A1 Apparatus for controlling the overflow and water level of hydraulic installations |
| 10/21/1992 | EP0509011A1 Liquid flow apparatus. |