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