| Patents for E03F 7 - Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools (2,571) |
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| 09/09/2005 | WO2005083190A1 Method of operating a sewage system and such a sewage system |
| 09/09/2005 | CA2555194A1 Method of operating a sewage system and such a sewage system |
| 09/01/2005 | DE202004013914U1 Flüssigkeitssauger Liquid sucker |
| 08/31/2005 | EP1567039A2 Sludge extractor |
| 08/31/2005 | CN2721741Y Pipeline cleaner |
| 08/18/2005 | WO2005075751A1 A sealing device and a method for manufacturing a sealing device |
| 08/16/2005 | US6929023 Back flow prevention device for pipelines conveying fluids |
| 08/11/2005 | US20050177323 Process for the assessment of gravity-type collection networks |
| 08/04/2005 | US20050166350 Self contained vacuum boom |
| 08/04/2005 | DE102004001375A1 Vorrichtung zur Veränderung des freien Strömungsquerschnitts eines Rohres oder Kanals Device for varying the free flow cross section of a pipe or channel |
| 08/03/2005 | CN2714641Y Odour resistant floor drain |
| 08/03/2005 | CN2714543Y Soil-removing water-intaking device by using low grade thermal energy of urban sewage |
| 07/27/2005 | CN2713032Y Cover board for well mouth of sewage drainage channel |
| 07/27/2005 | CN1646878A Device for determining the position and direction of channel inlets and channel outlets in sewer manholes |
| 07/13/2005 | EP1553341A1 Device for hermetically closing and draining containers of sewage and wastewater |
| 07/13/2005 | EP1553235A2 Device for varying the free flow cross-section in a conduit or a canal |
| 07/13/2005 | CN2709551Y Magnetization odour gully grating |
| 07/06/2005 | CN2707870Y Mosquito killing water grate used for urban sewer |
| 07/06/2005 | CN2707869Y Moth proof and odour preventing device for sewer |
| 07/05/2005 | CA2133996C System and process for relining channel pipe sections with inspection facilities |
| 06/29/2005 | EP1548195A1 Device and method for preventing the formation of an unhealthy and/or explosive atmosphere in the vicinity of a liquid tank |
| 06/29/2005 | EP1548194A1 Pipe cleaning device |
| 06/23/2005 | WO2004070322A3 Apparatus and method for fluid flow control |
| 06/22/2005 | EP1543201A1 Method and device for cleaning separators |
| 06/22/2005 | CN2705504Y Sewer valve |
| 06/15/2005 | CN2704637Y Automatic valves |
| 06/02/2005 | US20050115338 Method and apparatus for performing sewer maintenance with a thermal sensor |
| 06/02/2005 | DE202005004577U1 Flow regulation mechanism for main drainage water pipe has pivoting flap regulating flow during rainfall |
| 05/25/2005 | CN2701930Y Bilge well dredging machine |
| 05/19/2005 | DE10246041B4 Saug-Spülfahrzeug Suction flushing vehicle |
| 05/18/2005 | CN2700425Y Four proofings apparatus |
| 05/18/2005 | CN1616779A Mosquito and fly preventer for rain catch-basin |
| 05/12/2005 | DE202004016828U1 Camera unit for inspecting sewer pipes, consists of wall camera directed towards pipe wall that forms image of surface area of pipe wall essentially perpendicular to channel wall |
| 05/11/2005 | EP1529888A1 Device for preventing backflow of liquids |
| 05/11/2005 | CN1614171A Door with automatic activation |
| 05/04/2005 | CN1611682A Overflow-proof floor drain |
| 05/04/2005 | CN1611345A Lining construction method for pipeline facilities and pipelike componenet with fins |
| 05/03/2005 | US6886592 Sewer relief valve with integral disinfectant means |
| 04/27/2005 | CN2695507Y Environmental protection odourless gully grating |
| 04/21/2005 | DE10255221B4 Geräteeinheit bestehend aus Rohrreinigungsdüse mit integrierter Inspektionskamera Unit consisting of pipe cleaning nozzle with integrated inspection camera |
| 04/20/2005 | CN2693844Y Four-prevention device for sewer |
| 04/20/2005 | CN2693843Y Drainage sealing device for sewer mouth |
| 04/19/2005 | US6881953 Method of tracing drains |
| 04/19/2005 | CA2133997C System and process for relining channel pipe sections |
| 04/13/2005 | CN2692230Y Flat ballshaped anti return flow isolator |
| 04/13/2005 | CN2692229Y Water draining channel opening lid |
| 04/13/2005 | CN1605688A Automatic opening and closing door |
| 04/07/2005 | US20050072469 Wastewater source control system |
| 04/07/2005 | US20050072465 Wastewater control system |
| 04/06/2005 | CN2690463Y Float pressure type anti-return flow isolator |
| 04/06/2005 | CN1603534A Drainage ditch cover with closure |
| 03/29/2005 | US6872055 Mud suction unit |
| 03/22/2005 | US6869533 Heating system and method for prevention of septic system freeze-up |
| 03/16/2005 | CN2685415Y Elastic sealing sewer four-protection apparatus |
| 03/16/2005 | CN1594769A Water impact non-return drainage facility |
| 03/09/2005 | CN1590818A Check ball valve and water draining controller using valve |
| 03/02/2005 | CN1191415C Flushing toilet |
| 02/24/2005 | WO2005016692A2 Apparatus and method for inspecting sewer lines using small mobile vehicles |
| 02/24/2005 | US20050040114 Directing warm air down through septic system in cold-weather locations; present heater system adapted for connection to vertical access clean-out pipes comprises heater and fan system defining output port for providing flow of heated air |
| 02/24/2005 | DE20221075U1 Filtereinrichtung zur Filterung von aus einer Schmutzkammer abzuführendem Wasser Filter means for filtering to be discharged from a soil chamber water |
| 02/24/2005 | DE10336034A1 Sewage and rainwater outfall pipe has segmented internal barrier pivoting within pipe insert |
| 02/23/2005 | CN2680753Y Quick dredging gun for closet |
| 02/23/2005 | CN1583578A Water taking-out method and automatic scrubbing apparatus by urban sewage low-order heat energy |
| 02/17/2005 | WO2005014942A1 Backflow preventing device |
| 02/17/2005 | US20050035142 Method and apparatus for pulling hose |
| 02/17/2005 | DE19654919B4 Sink water trap cleaning appliance - has appliances for automatic lifting and precise replacing of sink cover |
| 02/10/2005 | DE202004009411U1 Backwater formation device for sewer pipe, comprises plastic half pipe containing pivoting flap with inflatable hose around its rim |
| 02/08/2005 | US6853200 Method for retrieving predetermined locations in sewer and pipeline systems |
| 02/03/2005 | DE202004018174U1 Panning head camera for inspection of hard to access spaces especially pipelines, with two lens positioned next to each other |
| 02/03/2005 | DE10118549B4 Toilette mit Wasserspülung Flush toilet |
| 02/02/2005 | EP1502077A1 Device for determining the position and direction of channel inlets and channel outlets in sewer manholes |
| 02/02/2005 | CN1574769A 监视系统 Monitoring System |
| 01/26/2005 | CN1186579C Method and device for using city waste water cold and heat source |
| 01/13/2005 | WO2005003611A2 Method and apparatus for pulling hose |
| 01/13/2005 | DE10123393B4 Vorrichtung und Verfahren zum Entfernen von sedimentierenden Verunreinigungen aus ortsfesten Objekten Apparatus and method for removing settling impurities from stationary objects |
| 01/13/2005 | DE10014703B4 Verfahren zum Wiederauffinden von vorgebbaren Stellen in Kanal- und Rohrleitungssystemen A method for retrieving predetermined locations in sewer and pipeline systems |
| 01/06/2005 | US20050005009 Monitoring system |
| 01/06/2005 | US20050000546 Apparatus and method for inspecting sewer lines using small mobile vehicles |
| 01/05/2005 | EP1230458A4 Sewer system flow control to reduce wastewater treatment costs |
| 01/05/2005 | DE20313252U1 Underground pipe inspection system has a measurement head with sensor and locating instrumentation for insertion into branch pipes leading-off from a main pipe |
| 12/29/2004 | CN1558051A Magnetic odour resistant catch pit cover |
| 12/23/2004 | WO2004111355A1 Water preparation device, in particular for a drain cleaning vehicle |
| 12/23/2004 | DE10321101A1 Suction pressure container for waste water systems has at least one wall unstable to pressure but stabilised by clamping reinforcement inside container |
| 12/22/2004 | CN2665249Y Stink dispelling sand drain cover |
| 12/15/2004 | EP1485541A1 A barrier for preventing a rat from entering a sewage pipe |
| 12/14/2004 | US6832166 Method and system for analyzing the effect of inflow and infiltration on a sewer system |
| 12/09/2004 | DE10012556B4 Absperreinrichtung für einen Ablauf Locking devices of a flow |
| 12/08/2004 | CN2661795Y Enclosed butt joint type well cover and well ring device |
| 11/25/2004 | DE10025801B4 Verfahren zur Feststellung einer Fehleinleitung v. Regenwasser in Schmutzwasserleitungen A method for detecting a failure initiation v. Rain water in waste water pipes |
| 11/24/2004 | EP1479839A1 Fluid spray-device installed in or on the exhaust pipe of a vacuum refuse collecting device for neuralizing odours |
| 11/24/2004 | CN2658242Y Drain cover device of sewer pipe |
| 11/24/2004 | CN1548667A Automatically closing multifunctional floor drain |
| 11/22/2004 | CA2428988A1 Instant water seal trap for existing drainage systems |
| 11/18/2004 | US20040226612 Apparatus and method for fluid flow control |
| 11/18/2004 | US20040226606 Vacuum valve controller |
| 11/16/2004 | US6819962 Method of evaluating, expanding, and collapsing connectivity regions within dynamic systems |
| 11/11/2004 | DE202004012691U1 Sewage pipe inspection trolley has hose driven by pair of advance rollers with outer surfaces coated with industrial diamonds or diamond dust to prevent wear |
| 11/11/2004 | DE10347235A1 A suction system for water has a pump, valves and level monitoring system and a sealed reservoir to safely operate continuously with high efficiency |
| 11/10/2004 | CN2654730Y 气动淤泥抓斗 Grab pneumatic sludge |
| 11/10/2004 | CN2654714Y Pollution discharge epidemic prevention valve |