Patents for E03F 5 - Sewerage structures (11,230) |
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06/27/1996 | DE4446573A1 Method and appts. for removing oils from contaminated water |
06/27/1996 | DE4445276A1 Synthetic waste collection well |
06/27/1996 | DE19504869C1 Drainage channel with U-shaped profile |
06/26/1996 | EP0718446A2 Drainage channel with a channel body having a substantially U-shaped profile |
06/25/1996 | US5529702 Pumping cleaning solution to oil removal tank, continuously cooling cleaning solution, results separation of short oil from surfactant portion, transferring separated oil from oil removing tank, recirculating cleaning solution, repetation |
06/20/1996 | DE4443873A1 Floor drain with air trap for buildings |
06/20/1996 | DE4443662C1 Separator for highly viscous material, e.g. fat or oil, in water |
06/20/1996 | DE4443433A1 Drainage system for flat roofs |
06/19/1996 | EP0717157A1 Manhole shaft arrangement |
06/18/1996 | US5527453 Apparatus for treating dirty water aerated by solar powered compressor |
06/18/1996 | CA2078378C Manhole separator |
06/11/1996 | CA2033321C Device for separating light liquids |
06/05/1996 | EP0715028A1 Road gully/inspection cover assembly |
05/30/1996 | DE4441682A1 Fire spreading prevention device in site drainage systems |
05/29/1996 | EP0713719A2 Disposal apparatus for separating oil from waste water |
05/22/1996 | EP0688236A4 An apparatus for the separation of solids from flowing liquid |
05/15/1996 | EP0711879A1 Tank interceptor |
05/14/1996 | US5516232 Runoff water diverter |
05/09/1996 | DE4439627A1 Clearance system for rainwater overflow basin |
05/08/1996 | EP0683841A4 Lined manhole assembly and liner. |
05/02/1996 | DE4438438A1 Method of operating drainage system for hilly ground |
05/02/1996 | CA2134789A1 "oger" system |
05/01/1996 | EP0709529A1 Waste water filter system and the resulting method for reducing strainable impurities of emergency outlets of mixed systems and mixed water clarification tanks |
05/01/1996 | CN2226093Y Anti-theft gully grating |
05/01/1996 | CN2226092Y Floor drain with odour seal |
04/24/1996 | CN2225580Y Automatic ventilation valve for sewer of storied building |
04/18/1996 | DE4436765A1 Method for cleaning liquid container, using surge waves |
04/17/1996 | CN1120817A An apparatus for the separation of solids from flowing liquid |
04/16/1996 | US5507954 Water pollution control |
04/16/1996 | US5507944 Storm water drainage filter system |
04/11/1996 | WO1996010676A1 Separation device |
04/11/1996 | DE4436997A1 Agitator for mixing floating or settled solids with water |
04/11/1996 | CA2199023A1 Separation device |
04/09/1996 | US5505860 Grease and oil trap |
04/09/1996 | US5505500 Apparatus for preventing generation of fugitive emissions at a drain site |
04/09/1996 | CA2053326C Apparatus for separating commingling heavier and lighter immiscible liquids |
04/04/1996 | DE19533935A1 Rainwater filter assembly esp. for retro-fitting to existing road drain systems |
04/02/1996 | US5503181 Floor sink protector |
04/02/1996 | CA2090570C Coupling assembly for corrugated decks |
04/02/1996 | CA2009208C Separator tank construction |
03/27/1996 | EP0703324A1 Separator for water polluted with sediments |
03/27/1996 | CN2223314Y Self-controlling device of water flushing system using waste water as substitute for clean water |
03/20/1996 | CN1118996A An apparatus for drainage of oil and water from a surface, especially from the deck of a tanker |
03/14/1996 | DE4432377A1 Device to cut mixt. contg. volatile component, esp. oil-water mixt. |
03/13/1996 | EP0701030A1 Vacuum drainage system |
03/13/1996 | CN2222191Y Door type theft-proof well cover |
03/12/1996 | US5498331 Tank interceptor |
03/12/1996 | US5498105 Drainage water pumping station and method for operating the same |
03/06/1996 | EP0699255A1 Prefabricated stucture of ferroconcrete or a substitute material |
03/05/1996 | US5496472 Method and apparatus for denitrification of wastewater |
02/29/1996 | WO1996006239A1 Outlet component to be mounted in concrete floors in particular |
02/29/1996 | WO1996006238A1 Built-in component to be arranged in floors with a through-flow housing |
02/29/1996 | WO1996006046A1 Sewage clarification plant |
02/29/1996 | DE4430040A1 Einbauelement zur Anordnung in Bodenschichten mit einem durchströmbaren Gehäuse Installation element for placement in soil layers with a housing through |
02/29/1996 | DE4430039A1 Ablaufelement zur Anordnung insbesondere in Betonböden Sequence element arrangement, especially in concrete floors |
02/28/1996 | CN2221067Y Refuse collecting drum for preventing sewer from blocking |
02/22/1996 | WO1996005381A1 Trench cover assembly and method |
02/22/1996 | WO1996005378A1 A method of lining a well or a pipe and a support ring for use when carrying out the method |
02/22/1996 | DE4429537A1 Abwasserreinigungsanlage Wastewater treatment plant |
02/22/1996 | DE4429288A1 Stream and effluent siphon flow cleaning |
02/22/1996 | CA2173752A1 Trench cover assembly and method |
02/20/1996 | US5492619 Automatic grease collection system |
02/20/1996 | CA2091336C Cap for a shaft |
02/15/1996 | WO1996004076A1 Grinder pump station |
02/15/1996 | WO1996004057A1 Separator for light-density organic materials carried with waste water |
02/15/1996 | DE4428421A1 Water quantity measurement device, e.g. for rain monitoring in rain overflow and retention tanks and water power systems |
02/15/1996 | DE4427609A1 Shaft construction system for sewers etc. |
02/15/1996 | DE4427608A1 Adaptor for connection opening in prefabricated concrete shafts |
02/14/1996 | EP0696665A2 Process for purifying waste water polluted with sinking and floating material and separating plant therefor |
02/14/1996 | EP0696664A1 Reflecting body having high luminescence |
02/13/1996 | US5490922 Waste water plant with built-in mesh screen unit |
02/08/1996 | DE19526985A1 Fitting fastening cover on drain trough |
02/08/1996 | DE19511206A1 Surface water U=shaped run=off channel for high flats or buildings |
02/07/1996 | EP0695835A2 Grating for a surface drainage channel |
02/07/1996 | EP0695222A1 Readily installed universal sewage grinder pump |
02/06/1996 | US5489163 Drainage channel |
02/01/1996 | WO1996002709A1 Cassette device |
02/01/1996 | DE4426683A1 Oil-water separation tank incorporates sub-surface structured bundles |
01/31/1996 | EP0694654A1 Gulley-grid |
01/31/1996 | CN2218781Y Anti-theft manhole lid |
01/30/1996 | US5487621 Large-depth underground drainage facility and method of running same |
01/25/1996 | DE19527970A1 Water clarification plant |
01/23/1996 | US5486287 Wastewater straining device |
01/17/1996 | EP0692290A1 Grease and light liquids separator |
01/09/1996 | CA2142489C Gas and liquid backflow-preventing valve device for drains |
01/04/1996 | WO1996000119A1 Contaminant recovery system and method |
01/04/1996 | CA2192964A1 Contaminant recovery system and method |
01/03/1996 | EP0690179A1 Floating downflow baffle |
01/02/1996 | US5480260 Ground water collection method and apparatus |
01/02/1996 | US5480254 Storm drain box filter and method of use |
12/28/1995 | WO1995035145A1 Apparatus and methods for separating solids from flowing liquids or gases |
12/27/1995 | EP0688956A1 Device for a siphon for sewers |
12/27/1995 | EP0688236A1 An apparatus for the separation of solids from flowing liquid |
12/27/1995 | CN2216090Y Strip shape gully grating and grating frame |
12/27/1995 | CN2216089Y Multiway floor drain |
12/20/1995 | EP0687784A1 Drainage gully for buildings |
12/20/1995 | EP0687779A1 Method for pumping drainage water from a pumping station into a discharge water flow destination |
12/20/1995 | EP0687332A1 A device in draining gutters |
12/20/1995 | CN2215530Y Theft-proof gully grating |
12/14/1995 | DE4443638C1 Device for pressure drainage of waste water |