| Patents for E03F 7 - Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools (2,571) |
|---|
| 11/10/2004 | CN2654711Y Overflow proof drain device |
| 11/10/2004 | CN1544768A Mosquito eradication manhole for urban sewer |
| 11/04/2004 | WO2004094753A1 Water suction device |
| 11/03/2004 | CN2653020Y Environmental protection water discharge device |
| 10/27/2004 | CN2651326Y Special mosquito inhibiting device in rain drain well |
| 10/27/2004 | CN2651324Y Protector of drain well |
| 10/21/2004 | DE202004013171U1 Flüssigkeitssauger Liquid sucker |
| 10/21/2004 | DE202004010448U1 Backflow flap for sewer shafts comprises a carrier body, a flap-and-float unit, a hinge joining the carrier body and the flap-and-float unit, and a stop |
| 10/21/2004 | DE10145815B4 Entsorgungsfahrzeug Disposal vehicle |
| 10/13/2004 | EP1144895B1 Method for redeveloping or renovating sewer drains and sewer ducts |
| 10/06/2004 | CN2646259Y Insoluble substance blockage proof, deodorant and rat insect proof device for downflow pipe of storied house |
| 10/06/2004 | CN2646256Y 水压式自动疏通阀 Automatic hydraulic dredge valve |
| 09/22/2004 | EP1030951B1 A mobile unit and method for purifying sludge and waste water |
| 09/21/2004 | US6792820 Method and accessories for pipe replacement |
| 09/21/2004 | US6792646 Suction hose arrangement for refuse tank trucks |
| 09/14/2004 | US6790368 Method and system for the recuperation of septic tank content |
| 09/09/2004 | US20040175235 Pipeline rehabilitation systems |
| 09/09/2004 | US20040173272 Reinforcing element of underground pipe, and trenchless repairing and reinforcing method using the same |
| 09/09/2004 | DE10029764B4 Fahrwagen Trolley |
| 09/08/2004 | EP1455026A1 Apparatus for generating vacuum inside waste accumulation tanks |
| 09/08/2004 | EP1261438A4 Well-cleaning system |
| 09/08/2004 | CN2639392Y Dainage valve for public sewer |
| 09/02/2004 | DE19614610B4 Unterdruckentwässerung Negative pressure drainage |
| 08/25/2004 | EP1449973A2 Method and device for cleaning gullies running along a railway line |
| 08/19/2004 | WO2004070322A2 Apparatus and method for fluid flow control |
| 08/19/2004 | US20040160600 Inspection system and method |
| 08/19/2004 | DE10303838A1 Modular high-pressure process and assembly to clean remote water drainage and collection installations in the vicinity of railway tracks |
| 08/19/2004 | CA2514842A1 Apparatus and method for fluid flow control |
| 08/18/2004 | CN2633990Y Anti-block device for sewer pipe |
| 08/11/2004 | CN2632181Y Insect protected deodorizer for drain weel |
| 08/05/2004 | US20040149066 Tool-bearing carriage, in particular mobile in a pipe |
| 08/04/2004 | CN2630346Y Sewar overflow-proofing valve |
| 07/28/2004 | EP1440273A1 A liner for reinforcing a pipe and method of making the same |
| 07/22/2004 | DE10259095A1 Method for measuring volume flow for sludge collecting vehicle using a magnetic induction monitor for a direct flow measurement |
| 07/15/2004 | US20040138816 Method and system for analyzing the effect of inflow and infiltration on a sewer system |
| 07/07/2004 | CN2623762Y Telescopic stinking-proof device for sewer |
| 07/07/2004 | CN2623761Y Vertical telescopic stinking-proof device for sewer |
| 06/30/2004 | CN2622261Y Automatic seling and multi-functional floor drain |
| 06/29/2004 | US6757623 Flow transport analysis method and system |
| 06/23/2004 | EP1431856A1 Measuring channel associated with a motor operated flow control valve and a level sensor |
| 06/23/2004 | EP1430290A1 Method of tracing drains |
| 06/17/2004 | DE10255221A1 Pipework unit for maintenance inspection of pipework and cleaning pipework has an integrated inspection camera and pipe-cleaning jet |
| 06/10/2004 | WO2004019744B1 Sludge extractor |
| 06/10/2004 | US20040108009 Method of repairing flow passage |
| 06/02/2004 | CN2618961Y Air isolation drain for sewage |
| 05/27/2004 | US20040099586 Catch basin attachment |
| 05/13/2004 | US20040089358 Lining of pipes |
| 05/05/2004 | CN1493812A Method for repairing runner |
| 04/29/2004 | WO2004019744A3 Sludge extractor |
| 04/22/2004 | US20040075220 Tear-out rubber coupling |
| 04/22/2004 | DE10247635A1 Cleaning vehicle for gullies/drains, using suction extraction and flushing with water, has a flushing water preparation system for the extracted water with a rotating filter and angled scraper for efficient filter cleaning |
| 04/22/2004 | DE10247634A1 Vehicle for cleaning gullies/drains, by suction extraction and flushing with water, has a two-stage flushing water preparation with rotation between the filter and its scraper for efficient cleaning |
| 04/22/2004 | DE10246041A1 Vehicle for cleaning gullies has a common swing jib, for the suction and flushing hoses, to lie at the side for travel and swing to the rear for deployment at the gully shaft in a compact structure |
| 04/21/2004 | EP1409907A1 Tool-bearing carriage, in particular mobile in a pipe |
| 04/15/2004 | DE19549473B4 Vorrichtung zur Untersuchung von Rohrleitungen An apparatus for inspection of pipes |
| 04/14/2004 | EP0864018B1 Method of influencing a flow of waste water |
| 04/08/2004 | WO2004029377A1 Method and device for cleaning separators |
| 04/07/2004 | EP1175535B1 Device for receiving material that can be drawn up by suction |
| 04/01/2004 | DE10244415A1 Verfahren und Vorrichtung zur Abscheider-Reinigung Method and apparatus for cleaning separator |
| 03/31/2004 | EP0773427B1 Apparatus for reference laser level setting |
| 03/31/2004 | CN1486408A Lining method of pipes |
| 03/24/2004 | CN1483609A Cleaning vehicle |
| 03/24/2004 | CN1143120C Apparatus for reference laser level setting |
| 03/18/2004 | DE10240804A1 Schlammsauger Sludge Pump |
| 03/11/2004 | WO2004019744A2 Sludge extractor |
| 03/10/2004 | EP1396668A1 Automatic shut-off of a flow channel |
| 03/10/2004 | CN1480599A Simple tightened well cap for gully |
| 03/04/2004 | DE20314706U1 Pipe and drain inspection unit for inspection of connections to household drains has cleaning nozzle with hose feed attached to steerable camera unit |
| 03/04/2004 | DE20311639U1 Check valve, has pivotable closure plate moved and locked into position using float mechanism and motor driven spindle |
| 03/04/2004 | DE10238074A1 Information system for cleaning vehicle combines vehicle position with acquired operating and state data into information unit; acquired information is exchanged with evaluation unit via interface |
| 03/03/2004 | EP1394329A2 Cleaning vehicle |
| 03/03/2004 | EP1394328A1 Check valve for drainage conduits |
| 03/02/2004 | US6701261 Method and system for analyzing the effect of inflow and infiltration on a sewer system |
| 02/26/2004 | DE20318384U1 Target location system for sanitary pipes uses label read by wheeled robot vehicle in pipe that has cutter to make branch hole |
| 02/19/2004 | US20040033108 Flexible weir style pinch valve |
| 02/19/2004 | DE20318869U1 High apartment building water supply and waste installation has sensors to detect waste blockage and controller to cut off fresh water supply |
| 02/12/2004 | US20040025944 Back flow prevention device for pipelines conveying fluids |
| 02/11/2004 | CN2603144Y Water seal protective valve |
| 02/11/2004 | CN1474125A Method and device for using city waste water cold and heat source |
| 02/05/2004 | US20040020270 Method and arrangement for inspecting sewer pipes |
| 01/28/2004 | EP1384938A1 Method of repairing flow passage |
| 01/28/2004 | CN2601278Y Auto-closed drainage cover |
| 01/24/2004 | CA2435838A1 Method of repairing flow passage |
| 01/22/2004 | DE10238863B3 Reinigungsfahrzeug Cleaning vehicle |
| 01/14/2004 | EP1379998A2 Flow transport analysis method and system |
| 01/07/2004 | EP1377770A2 Lining of pipes |
| 12/25/2003 | US20030236639 Sewer flow analysis method |
| 12/18/2003 | DE19545047C2 Vorrichtung zur Aktivierung vorhandener Stauräume sowie zur Abflussverzögerung von Abwasser innerhalb von Abwassersystemen Device for activation of existing storage spaces and to delay discharge of wastewater within sewer systems |
| 12/10/2003 | CN1461371A Catch basin attachment |
| 11/27/2003 | WO2003097949A1 Toilet installations |
| 11/20/2003 | US20030216873 Method and system for analyzing the effect of inflow and infiltration on a sewer system |
| 11/12/2003 | EP1361001A2 Method and arrangement for inspecting sewer pipes |
| 11/11/2003 | CA2275793C Testing of plumbing installations and plumbing tool |
| 11/06/2003 | WO2003091662A1 Device for determining the position and direction of channel inlets and channel outlets in sewer manholes |
| 11/06/2003 | WO2002086666A3 Flow transport analysis method and system |
| 11/06/2003 | DE10239622C1 Back-flow prevention valve, for drainage pipe, uses floating ball lifted for closing valve seat adjacent bottom end of drainage pipe |
| 11/06/2003 | CA2427955A1 Method and arrangement for inspecting sewer pipes |
| 10/22/2003 | CN2581552Y Funnel-type sewer sand screen |
| 10/16/2003 | WO2002055915A3 Lining of pipes |
| 10/16/2003 | DE20310549U1 Water storage and handling system for collecting waste water from house has channel made of concrete accommodating hoses and bag pump |