Patents
Patents for E03F 1 - Methods, systems, or installations for draining-off sewage or storm water (3,565)
01/1998
01/15/1998WO1998001065A2 Device for treatment of possibly contaminated sludge occurring in sanitary facilities
01/14/1998EP0818589A2 Vacuum toilet
01/14/1998EP0511363B1 Vacuum sewerage system with increased lift capabilities having electric air admission controllers
01/13/1998US5707027 Apparatus for operating a vacuum plumbing system in an aircraft
01/09/1998CA2209364A1 Vacuum toilet unit
12/1997
12/30/1997US5702595 Catch basin guard
12/30/1997US5702593 Stormwater treatment system/apparatus
12/30/1997US5701931 Water relief valve for a drainage system
12/04/1997WO1997045600A1 Liquid drainage system for a hard-top surface
12/04/1997CA2255729A1 Liquid drainage system for a hard-top surface
12/02/1997US5692250 Vacuum toilet system with treated rinse liquid
11/1997
11/27/1997WO1997043895A1 Device to introduce fluids into soil, filter beds etc. or to remove them from same
11/12/1997EP0806527A2 A forced discharge compressed-air operated device for sanitary fixtures
10/1997
10/28/1997US5681455 Flowing-down rainwater flow-separating pipe
10/28/1997US5681148 Vacuum/holding tank
10/28/1997US5680989 Adjustable weir for liquid distribution systems
10/16/1997WO1997038177A1 Method and apparatus for reducing saline infiltration in coastal sewerage systems
10/15/1997EP0800601A1 Waste tank for vacuum sewage system
10/07/1997US5673723 Vacuum sewerage system
10/02/1997DE19642972A1 Separator for soak-away drainage system
09/1997
09/30/1997US5672506 Concrete tank including member composed of glass long fiber reinforced foamed plastic composite material as inside wall and formwork
09/30/1997US5672028 Flood control system
09/25/1997DE19610686A1 Arrangement for treating water for re-use by filtration
09/23/1997US5669982 Method for collecting wash water or other fluids applied to articles
09/23/1997US5669733 Angled adapter for a leaching chamber system
09/18/1997DE19609063A1 Removal and use of rain-water
09/18/1997DE19608143A1 Concrete element for seepage subsoil from storm sewage
09/16/1997CA2007415C Pivotal trap apparatus for drainage pipes
09/11/1997DE19608201A1 Drainage system for removing surface water
09/11/1997DE19607496A1 Rainwater collector, e.g. for water garden or flushing toilet
08/1997
08/28/1997WO1997031162A1 Stormwater sediment and litter trap
08/28/1997CA2247035A1 Stormwater sediment and litter trap
08/19/1997US5658092 Adjustable downspout extension assembly
08/19/1997US5657784 Control arrangement for actuating a shut-off valve and method of operation
08/12/1997CA2073678C Vacuum sewerage system with increased lift capabilities having electric air admission controllers
08/07/1997DE19604163A1 Sealing valve for vacuum waste connection
07/1997
07/30/1997EP0786034A1 Paving system for spillage and flood management
07/22/1997US5650065 Skimmer cover for dry well in a catch basin
07/08/1997US5644802 Vacuum sewer arrangement
07/08/1997CA2030869C Vacuum pump control apparatus for an evacuating type waste water collecting system
07/03/1997DE19547379A1 Storage tank for rain water
06/1997
06/25/1997EP0780524A1 Storm water dispersing system having multiple arches
06/19/1997DE19546650A1 Vacuum operated pneumatic valve timed controller, especially for waste water system
06/19/1997DE19546649A1 Sanitary system with liquid flushing
06/11/1997EP0778432A1 Valve, particularly for vacuum drainage systems
06/11/1997CN1151775A A vacuum unit and a vacuum toilet system comprising such a unit
06/03/1997US5634740 Large-depth underground drainage facility and method of running same
06/03/1997US5634494 Control arrangement for a shutoff valve actuatable by negative pressure
05/1997
05/28/1997EP0579815B1 Package system for the collection and transport of liquid waste
05/27/1997US5632888 Environmental filter
05/27/1997CA2106678C Package system for collection-transport of waste liquids
05/15/1997WO1997017502A1 Waste tank for vacuum sewage system
05/09/1997WO1997016609A1 Storm water filter arrangement
05/09/1997WO1997016608A1 A device in a waste disposal system in a building
05/09/1997CA2236038A1 A device in a waste disposal system in a building
05/07/1997DE19614610A1 Vacuum drainage system for toilet
05/02/1997EP0770735A1 Underground buffer tank for storing and treating rain water
04/1997
04/29/1997US5624226 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump
04/22/1997US5621924 Vacuum tank construction for a vacuum toilet assembly
04/09/1997EP0767278A1 Drip gutter system
04/02/1997EP0765976A2 Duckbill valve
04/01/1997US5615978 Management system for water-barrier sheet
04/01/1997US5615701 Vacuum valve control device and vacuum valve
03/1997
03/19/1997EP0763633A1 Membrane controlled vacuum sewer system
03/12/1997EP0666946B1 Waste tank for vacuum sewage system
03/06/1997DE19509467A1 Waste water processing plant
03/05/1997EP0760039A1 A vacuum unit and a vacuum toilet system comprising such a unit
02/1997
02/26/1997EP0674736B1 Sewage system
02/25/1997US5604938 Vacuum flush waste disposal system for railcars
02/18/1997US5603587 Drainage water pumping station and method for operating the same
01/1997
01/29/1997EP0667928A4 Vacuum toilet system and discharge valve thereof.
01/29/1997EP0637354A4 Portable vacuum toilet system.
01/28/1997US5597477 Sewage effluent disposal system having sparger in holding tank
01/28/1997US5597264 Leaching field and method of making
01/15/1997EP0646204A4 Drywell cover and drywell.
12/1996
12/31/1996US5588778 Leaching chamber with angled end
12/31/1996US5588777 Wastewater treatment system
12/31/1996US5588458 Vacuum valve controller for vacuum sewer system
12/19/1996WO1996041059A1 Vacuum tank construction for a vacuum toilet assembly
12/19/1996DE19509466A1 Liq. storage tank with closable inlet and outlet
12/04/1996EP0745060A1 Stormwater treatment system/apparatus
11/1996
11/19/1996US5575454 Vacuum valve
11/19/1996US5575304 Vacuum sewer system
11/14/1996WO1996035843A1 Environmental filter
11/07/1996WO1996034830A1 Wastewater treatment
11/07/1996DE19516740A1 Underpressure generator for vacuum toilet systems
11/07/1996CA2219901A1 Wastewater treatment
11/05/1996US5570715 Sump-vented controller mechanism for vacuum sewerage transport system
10/1996
10/31/1996WO1996034156A1 Sump-vented controller mechanism for vacuum sewerage transport system
10/29/1996US5569372 Catch basin structure for interception of contaminants having detachable parts
10/24/1996WO1996033319A1 Waste water disposal process
10/24/1996DE19514359A1 Verfahren zur Ableitung von Abwässern A process for the disposal of waste water
10/22/1996US5567259 Methods of making a portable liquid containment
10/17/1996WO1996032548A1 Vacuum sewer system
10/02/1996EP0734604A1 Cable duct element
10/02/1996EP0734478A1 Underground drainage system
10/01/1996US5560782 Accumulating used wash water for recycling or environmentally safe disposal
09/1996
09/18/1996EP0732308A1 Sludge treatment tank and construction method thereof
09/17/1996US5556231 Severable leaching chamber with end cap
09/11/1996CA2144361A1 Storm water drainage system
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