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