Patents for E03F 1 - Methods, systems, or installations for draining-off sewage or storm water (3,565) |
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12/08/1994 | WO1994027484A1 Method and apparatus for rejuvenating a drainfield or dry well |
12/06/1994 | US5369811 For a transport vehicle |
11/29/1994 | US5368636 Waste tank for vacuum sewage system |
11/22/1994 | US5366322 Apparatus for containment of overflow and runoff water |
11/15/1994 | US5364535 Attaching absorbent pad to catch basin that floats on water surface; removal when saturated |
11/01/1994 | US5360290 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
11/01/1994 | US5360289 Drainage water pumping station and method for operating the same |
10/25/1994 | US5358007 Downspout with swivel and flow diverter |
10/25/1994 | US5358006 Adjustable downspout extension assembly |
10/20/1994 | DE4413493A1 Siphonic WC with electric control means |
10/06/1994 | DE4310512A1 Plant for treating waste water and refuse |
10/06/1994 | DE4305956A1 Installation for discharging waste water (sewage) |
09/15/1994 | WO1994021018A1 Cable duct element |
09/13/1994 | US5345618 Vacuum toilet system |
09/06/1994 | US5344085 Vacuum drainage system |
08/30/1994 | US5342144 Stormwater control system |
08/16/1994 | US5337773 Vacuum-operated draining systems |
08/11/1994 | DE4403154A1 Water-discharge installation arranged at a considerable depth beneath the ground, and method of operating the installation |
08/09/1994 | US5336017 Leaching system conduit with interlocking end joint |
08/04/1994 | WO1994017255A1 Portable vacuum toilet system |
08/02/1994 | CA1331223C Septic system |
07/28/1994 | DE4240057A1 Installation for collection of water-pollutant liqs from roadway |
07/21/1994 | WO1994016158A1 Device for controlling the operation of a vacuum toilet |
07/05/1994 | US5326069 Vacuum toilet system and discharge valve thereof |
06/23/1994 | DE4400870A1 Building and facade protection against high water |
06/22/1994 | EP0602604A1 Vacuum Valve |
06/21/1994 | US5322629 Method and apparatus for treating storm water |
06/21/1994 | US5322387 For a sewerage disposal system |
06/08/1994 | EP0454794B1 Vacuum drainage system |
06/08/1994 | CN2168025Y Combined grate for road drain ditch |
06/07/1994 | US5317763 Apparatus for low noise flushing a vacuum toilet, especially in an aircraft |
06/01/1994 | EP0599691A1 Installation for hydraulic flow control and electricity generation |
06/01/1994 | EP0530203B1 Improvement in a sewage system |
05/31/1994 | US5316589 Method for controlling street surface pollutants |
05/31/1994 | CA1329959C Leaching system conduit |
05/24/1994 | CA1329753C Liquid level control system |
05/21/1994 | CA2103496A1 Power generation and hydraulic flow controlling facility |
05/11/1994 | WO1994010397A1 Vacuum toilet system and discharge valve thereof |
05/11/1994 | WO1994010395A1 Waste tank for vacuum sewage system |
05/11/1994 | CA2148102A1 Waste tank for vacuum sewage system |
03/29/1994 | US5297577 Culvert of vacuum sewerage |
03/08/1994 | US5292104 Vacuum interface valve |
03/08/1994 | US5291917 Housing for a vacuum valve unit |
02/23/1994 | EP0584031A2 Vacuum toilet system for moving installations and civil constructions |
02/23/1994 | EP0583596A1 Drainage pipe |
02/08/1994 | US5284507 Waste tank for vacuum sewage system |
02/08/1994 | CA2103686A1 Drainage pipe |
02/03/1994 | WO1994002228A1 Wastewater collection system for a sewage system |
02/03/1994 | CA2140335A1 Wastewater collection system for a sewage system |
02/01/1994 | US5282281 Portable vacuum toilet system |
01/25/1994 | US5280872 Vacuum valve for a sewage collection system |
01/05/1994 | DE4221370A1 Improving plant clearing beds root removal units and filter beds - by piling up to produce zones with aerobic conditions and redn. in surface requirement |
12/23/1993 | WO1993025771A1 Drywell cover and drywell |
12/23/1993 | CA2138386A1 Drywell cover and drywell |
12/21/1993 | US5271105 Vacuum flush toilet assembly |
12/14/1993 | CA1325155C Isolation baffle assembly with imbedded removal filament and method of use |
11/24/1993 | EP0570739A1 Drainage system |
11/23/1993 | US5264134 Tethered bags |
11/21/1993 | CA2096489A1 Vacuum-0perated draining system |
11/09/1993 | US5259427 Package system for collection-transport of waste liquids |
10/06/1993 | EP0564068A1 Housing for a vacuum valve unit |
10/06/1993 | EP0511363A4 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
10/05/1993 | US5249887 Apparatus for control of liquids |
10/05/1993 | US5249885 Method or use of composite drywell |
09/21/1993 | US5245711 Vacuum toilet system |
08/18/1993 | EP0555984A1 Malodour-prevention in mobile vacuum toilet systems |
08/03/1993 | US5232307 For receiving water |
08/01/1993 | WO1993014974A1 Package system for collection-transport of waste liquids |
07/28/1993 | EP0552517A1 Device for the evacuation of a liquid medium containing solids |
07/20/1993 | US5228802 Underground drainage facility and operation method therefor |
07/14/1993 | EP0550980A1 Vacuum valve for a sewage collection system |
06/29/1993 | US5223156 Pumping accumulated fluid into elevated storage tanks, then allowing it to flow down at high speed to avoid clogging of pipes |
06/29/1993 | US5223154 Controlling water pollution |
06/08/1993 | US5217323 Method and apparatus for distributing graywater |
06/02/1993 | EP0544261A1 Vacuum interface valve |
06/01/1993 | US5214807 Vacuum toilet system |
05/19/1993 | DE4137904A1 Inflow of clarified waste water into bodies of natural water - uses active mixing, with addition of higher volume of natural water |
03/25/1993 | DE4131367A1 Valve controlled toilet for use in vehicle - uses sequentially controlled vacuum valves to reduce water consumption during flushing |
03/23/1993 | US5195284 Drywell cover and drywell |
03/10/1993 | EP0530859A2 Vacuum toilet system |
03/10/1993 | EP0530203A1 Improvement in a sewage system. |
03/03/1993 | EP0529082A1 Inverted siphon of vacuum type sewerage |
01/26/1993 | CA2047936A1 Home water conserver |
01/20/1993 | EP0523389A1 Drainage water pumping station |
12/23/1992 | EP0519523A2 Valve control system |
12/23/1992 | EP0519036A1 Flush toilet, in particular for vehicles. |
12/10/1992 | WO1992018714A3 Sewage system |
11/25/1992 | EP0515134A1 Improvements in and relating to vacuum sewage systems |
11/24/1992 | US5165457 Vacuum sewer arrangement |
11/17/1992 | US5163780 Method of modifying the soil permeability for septic systems |
11/04/1992 | EP0511363A1 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
10/29/1992 | WO1992018714A2 Sewage system |
10/29/1992 | WO1992018713A1 Discharge system for the waste from a waste-producing unit |
10/29/1992 | DE4136931A1 Ablaufsystem fuer die ablaufmasse einer ablaufmasse produzierenden einheit Drainage system for running the mass of a running mass-producing unit |
10/29/1992 | CA2108371A1 Sewage system |
10/20/1992 | US5156488 For burial in the earth |
09/23/1992 | EP0414884A4 Manually operated vacuum flush water closet |
09/03/1992 | WO1992014889A1 Inverted siphon of vacuum type sewerage |
08/20/1992 | WO1992014005A1 Storm water infiltration |
07/28/1992 | US5133853 Sewage system |