Patents
Patents for E03F 1 - Methods, systems, or installations for draining-off sewage or storm water (3,565)
08/1996
08/28/1996EP0679211B1 Device for controlling the operation of a vacuum toilet
08/27/1996US5549817 Stormwater treatment system/apparatus
08/27/1996US5549415 Septic tank drainfield installation device and method
08/07/1996EP0725188A1 Flow dividing tube for flowing rain water
07/1996
07/23/1996US5538546 Waste tank for vacuum sewage system
07/18/1996DE19545615A1 Draining system with building plot drain and rainwater pipes
07/16/1996US5535770 Ejector device
07/11/1996DE19500171A1 Drainage system with rain water ground disposal
07/10/1996CN2230784Y Automatic telescopic water drainger
07/04/1996WO1996020316A1 Water closet
07/04/1996CA2206403A1 Flush toilet bowl
06/1996
06/18/1996CA2078378C Manhole separator
06/11/1996US5524655 For a passenger transport vehicle
06/05/1996CN1123865A Vacuum valve controller for vacuum sewer system backgraound of the invention
06/04/1996US5522672 System and method for cleaning a sewage field line from a septic tank
06/04/1996US5522427 Rain water conveyance apparatus
05/1996
05/28/1996US5520481 Drain field system
05/14/1996US5516229 Drain field system
05/14/1996US5515555 Device for controlling the operation of a vacuum toilet
05/14/1996US5515554 Vacuum toilet system
05/01/1996CN1121548A Theft-proof method for well-cover and water grate
04/1996
04/30/1996US5511904 Storm water infiltration
04/30/1996US5511903 Leaching chamber with perforated web sidewall
04/30/1996US5511829 Universal connector for downspout drainage extension
04/25/1996WO1996012067A1 Paving system for spillage and flood management
04/10/1996EP0705946A2 Leaching chamber with perforated web sidewall
04/03/1996EP0704372A1 Device to operate a vacuum toilet in an aircraft
03/1996
03/14/1996WO1996007797A1 Water and land management method and system
03/13/1996EP0701030A1 Vacuum drainage system
03/12/1996US5498105 Drainage water pumping station and method for operating the same
03/12/1996US5498104 Hollow load bearing structure
03/05/1996US5495626 Vacuum sewer toilet system
02/1996
02/08/1996WO1996003553A1 Flow dividing tube for flowing rain water
01/1996
01/30/1996US5487646 Vacuum pump control apparatus for an evacuating type waste water collecting system
01/30/1996US5487621 Large-depth underground drainage facility and method of running same
01/18/1996WO1996001345A1 A vacuum unit and a vacuum toilet system comprising such a unit
01/18/1996CA2193950A1 A vacuum unit and a vacuum toilet system comprising such a unit
12/1995
12/20/1995EP0687779A1 Method for pumping drainage water from a pumping station into a discharge water flow destination
12/12/1995US5473793 For use in cleaning underground water or sewage systems
12/06/1995CN2214461Y Soft drainage pipe
11/1995
11/22/1995CN1112179A Ejector device
11/21/1995CA2149080A1 Liquid spill containment system and method for its manufacture and use
11/07/1995US5464492 Method for manufacturing a portable liquid spill containment system
11/02/1995EP0679211A1 Device for controlling the operation of a vacuum toilet.
10/1995
10/25/1995EP0678631A2 Vacuum valve controller for vacuum sewer system
10/16/1995CA2121445A1 Vacuum assisted toilet with anti-reverse siphoning device
10/11/1995EP0675987A1 Suction device
10/04/1995EP0674736A1 Sewage system.
10/03/1995US5454936 Vacuum toilet system
09/1995
09/26/1995CA2004564C Leaching system conduit with high rigidity joint
09/12/1995US5449016 Sewage system
08/1995
08/30/1995EP0529082B1 Inverted siphon of vacuum type sewerage
08/23/1995EP0667928A1 Vacuum toilet system and discharge valve thereof
08/17/1995WO1995021798A1 Stormwater treatment system/apparatus
08/16/1995EP0666946A1 Waste tank for vacuum sewage system.
08/15/1995US5441363 Leaching chamber
08/01/1995US5437786 Stormwater treatment system/apparatus
07/1995
07/27/1995WO1995011354A3 Suction device
07/19/1995EP0519036B1 Flush toilet, in particular for vehicles
06/1995
06/28/1995EP0659948A2 Air pressure driven vacuum sewer system
06/28/1995EP0659947A2 Control device for a vacuum actuated stop valve
06/22/1995WO1995016833A1 Underground drainage system
06/22/1995CA2179150A1 Underground drainage system
06/13/1995US5423339 Method and apparatus for treating articles with wash water or other fluid
06/13/1995CA1335859C Vacuum toilet system
06/06/1995US5421040 Vacuum toilet system
05/1995
05/31/1995CN1103176A Vacuum valve control device and vacum valve
05/30/1995US5419838 Groundwater storage and distribution system having a gallery with a filtering means
05/17/1995EP0653524A2 Ejector device
05/12/1995CA2135331A1 Ejector device
04/1995
04/27/1995WO1995011355A1 Sewage treatment plant
04/27/1995WO1995011354A2 Suction device
04/26/1995EP0649946A2 Process for actuating a shut-off valve and a control system for actuating such a valve
04/25/1995US5408704 Low volume vacuum toilet assembly
04/11/1995US5405539 Waste runoff water treatment utilizing a collection box with inlet for drainage water and outlet for filtered water; filtration
04/06/1995DE4403454C1 Process and apparatus for treating surface water or the like
04/06/1995DE4309050A1 Vacuum-assisted toilet for installation in ground, airborne and waterborne vehicles
04/05/1995EP0646740A1 Vacuum valve
04/05/1995EP0646204A1 Drywell cover and drywell
04/04/1995US5403474 Curb inlet gravel sediment filter
03/1995
03/28/1995US5401459 Gas-assisted injection molding of hollow ribbed article
03/28/1995US5401116 Conduit for burial in the earth to disperse or gather liquids
03/22/1995EP0644299A2 Vacuum sewer system and method
03/22/1995CA2132362A1 Vacuum sewer arrangement
03/15/1995EP0643176A2 Low volume vacuum toilet assembly
03/14/1995US5396668 System for discharging wastes
03/09/1995DE4431599A1 Separating device for waste water for the private sector
02/1995
02/15/1995EP0638692A1 Process for downward sloped discharge of fluids and installation for carrying out the process
02/14/1995US5389821 Drainwater/sewage treatment installation for producing electrical power and for regulating a hydraulic flow
02/08/1995EP0637354A1 Portable vacuum toilet system
02/07/1995CA2103538A1 Lindi's curb culvert
02/01/1995EP0355153B1 Liquid level control system
01/1995
01/24/1995US5383974 Method for rejuvenating a drainfield or dry well
01/24/1995CA1334044C Waste tank for a vacuum sewage system
01/17/1995US5382363 Septic system and method
01/05/1995WO1995000717A1 Selective stormwater or sewer outlet control valve and control system
01/05/1995WO1995000716A1 Selective stormwater or sewer outlet control valve and control system
12/1994
12/27/1994US5375891 Universal connector for downspout drainage extensions
12/21/1994EP0584083B1 Water closet with bowl
12/14/1994EP0628900A2 Vacuum valve control device and vacuum valve
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