| 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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| 04/03/2013 | CN103015522A Excavating machine |
| 03/28/2013 | WO2012165825A3 Floating-type pipe probe |
| 03/28/2013 | WO2012165824A3 System for inserting a mapping probe into, and for withdrawing said mapping probe from a conduit line, and method of transporting the mapping probe by using the system |
| 03/27/2013 | CN202831200U Dung absorption pipe picking and moving device for dung tank transfer trolley |
| 03/27/2013 | CN202831191U Gutterway cover |
| 03/27/2013 | CN102995742A Silt suction vehicle and silt suction pipe retraction system thereof |
| 03/27/2013 | CN102995741A Automatic cleaning equipment for sewer line in petroleum field |
| 03/27/2013 | CN102995740A Anti-blocking device of cement sewage pipe |
| 03/21/2013 | DE202012104729U1 Vorrichtung zum Absperren eines Kanalrohrs Device for closing a sewer pipe |
| 03/20/2013 | CN202809830U Separated type fecal suction truck |
| 03/20/2013 | CN202809829U Double vacuum pump sewage suction truck |
| 03/20/2013 | CN202809828U Protective device for dredging water pipes of sewers |
| 03/20/2013 | CN202809744U Cover for water-falling hole |
| 03/13/2013 | CN202787484U Stainless steel buoyancy tank flap valve |
| 03/13/2013 | CN102966178A Multifunctional underground pipe dredging power winch |
| 03/13/2013 | CN102966177A Sewer desilting machine |
| 03/12/2013 | CA2751405C Opening/closing device |
| 03/06/2013 | CN202768877U Liquid through discharging device of fecal suction truck |
| 03/06/2013 | CN202767226U Dirt discharging device and fecal suction truck |
| 03/06/2013 | CN202767225U Dredging machine for water draining main pipe or inspection well main pipe |
| 03/06/2013 | CN202767224U Household sewer rat-proof device |
| 03/06/2013 | CN202767218U Self-closed floor drain |
| 03/06/2013 | CN202767200U Anti-blocking floor drain with automatic power device |
| 03/06/2013 | CN202766398U Pull type sludge treatment equipment |
| 03/06/2013 | CN202762185U Sewage purifying system and sewer integral maintenance truck |
| 03/06/2013 | CN102094453B Crane type desilting car |
| 03/05/2013 | CA2751408C Opening/closing device |
| 02/28/2013 | WO2012141468A4 Pipeline mapping device |
| 02/27/2013 | CN202755446U Sewer rat prevention device |
| 02/27/2013 | CN102943524A Automatic urban sewer sewage-removing and sludge-discharging technology |
| 02/20/2013 | EP2559816A1 A rat trap |
| 02/20/2013 | CN202745195U Flushing quick dung-cart docking assembly |
| 02/13/2013 | CN202730948U Three-dimensional dredging device for water drainage pipe |
| 02/13/2013 | CN202730947U Hydraulic trench dredging device |
| 02/13/2013 | CN202730930U Separate displacement-type initial rainwater discarding device |
| 02/13/2013 | CN102926456A Duct dredging device for steel slag hot braising pools |
| 02/13/2013 | CN102926419A Suction and conveying device of sludge pipeline |
| 02/13/2013 | CN101949169B Large pipeline sludge dredging machine |
| 02/06/2013 | DE202012001071U1 Fahrwagen für Inspektions- oder Sanierungsarbeiten Trolley for inspection or remediation works |
| 02/06/2013 | CN202718232U Buoy flow-limiting valve for combined system sewage intercepting well |
| 02/06/2013 | CN202718227U Structure for draining accumulated water in pipe alley by using gravity flow |
| 02/06/2013 | CN202715563U Special car integrating cleaning, water sprinkling and excrement suction functions |
| 02/06/2013 | CN102912848A Intelligent multifunctional comprehensive sewer |
| 01/30/2013 | CN202706190U Small-size robot used for inspecting water discharging pipeline |
| 01/30/2013 | CN202706187U Novel rat-proof and skid-proof cove plate |
| 01/30/2013 | CN202706179U A multifunctional sewage suction vehicle |
| 01/30/2013 | CN102900143A Drainage system for preventing foreign biological invasion |
| 01/24/2013 | DE102011108012A1 Camera probe for inspection of water or sewage carrying channels, comprises hydraulic drive unit, and is arranged in main channel or in branching subsidiary channel displaceable or movable from main channel |
| 01/24/2013 | DE102011051972A1 Compressed air system of wastewater treatment plant, comprises compressed-air unit by which air can be raised to higher pressure level, and pipe system for transporting compressed air to an air entry system |
| 01/23/2013 | CN202689177U Sewage suction/discharge device of suction-type sewer scavenger |
| 01/23/2013 | CN202689176U Grab bucket device installed on sludge cleaning car |
| 01/23/2013 | CN202689175U Water collecting well desilting system |
| 01/23/2013 | CN202689045U Inspection well cover |
| 01/23/2013 | CN102888892A Sewage contamination vacuum exhaust and separation device |
| 01/16/2013 | CN202672328U Deodorization floor drain |
| 01/16/2013 | CN202672327U Compression spring type self-closed floor drain |
| 01/16/2013 | CN202672283U Plate-turnover self-closing floor drain |
| 01/16/2013 | CN202672276U Automatic floating-sinking anti-stink floor drain |
| 01/10/2013 | WO2012141468A3 Pipeline mapping device |
| 01/09/2013 | CN202658706U Insect-proofing deodorization floor drain |
| 01/09/2013 | CN202658702U Temporary removal and relocation shot hole for sewage pipeline |
| 01/09/2013 | CN202658701U Shot hole used in demolition or relocation of sewer line |
| 01/09/2013 | CN202658642U Tank bottom dredging device of dirty oil sewage station |
| 01/09/2013 | CN202657757U Drainage pipe device and sewer dredging vehicle |
| 01/09/2013 | CN102864837A Novel multifunctional device for mechanically clearing blow-off pipeline |
| 01/02/2013 | CN202644712U Sludge clearing device of underground pipeline |
| 01/02/2013 | CN202644708U Positive-action type water falling device |
| 01/02/2013 | CN202644701U Bend drainage pipe mouth structure |
| 01/02/2013 | CN101389888B Non-return valve with a ball-shaped valve body |
| 12/26/2012 | CN202627182U Fixing device of pipe fitting and comprehensive sewer maintenance truck |
| 12/26/2012 | CN202627181U Sewer scooping shovel |
| 12/26/2012 | CN202627164U Structure for draining accumulated water in pipeline trench |
| 12/26/2012 | CN202626959U Pull-type automatic flap valve |
| 12/26/2012 | CN102839746A Environment friendly underwater dredging vehicle for channels |
| 12/26/2012 | CN102838263A Device and method for cleaning and separating garbage in water discharging pool |
| 12/25/2012 | US8336857 Method and apparatus for pulling hose |
| 12/20/2012 | US20120321371 Fastener mechanism |
| 12/19/2012 | CN202610964U Pipeline dredging device |
| 12/19/2012 | CN202610963U Sewage suction device for sewage suction truck |
| 12/19/2012 | CN202610962U Siphon-type desilting device of water storage and drainage tunnel |
| 12/19/2012 | CN102828558A Pipeline dredger |
| 12/12/2012 | CN202595890U Mouse-proof and odor-proof water draining device |
| 12/12/2012 | CN202595889U Floor drain |
| 12/12/2012 | CN202595886U Automatic closing type floor drain |
| 12/12/2012 | CN202595846U Insect-preventing anti-backflow stink isolating floor drain |
| 12/12/2012 | CN202595845U Lever gravity type self-sealing floor drain |
| 12/06/2012 | WO2012165825A2 Floating-type pipe probe |
| 12/06/2012 | WO2012165824A2 System for inserting a mapping probe into, and for withdrawing said mapping probe from a conduit line, and method of transporting the mapping probe by using the system |
| 12/05/2012 | CN202577570U Anti-mosquito automatic pollution discharging device for municipal road surface |
| 12/05/2012 | CN202577569U Self-closing pipeline deodorization valve |
| 12/05/2012 | CN202577499U Deodorant floor drain |
| 11/29/2012 | WO2012161634A1 Device for achieving single-direction flow in channels, pipes, etc |
| 11/29/2012 | DE102004022749B4 Vorrichtung zur Reinigung von Schmutzwasser Device for purifying waste water |
| 11/28/2012 | CN202562553U A liquid level display device for combined sewage suction vehicle |
| 11/28/2012 | CN202559523U Zigzag-type sewage suction pipe head with air guide groove |
| 11/28/2012 | CN202559522U Water circulation device for combined sewage-suction vehicle |
| 11/28/2012 | CN202559521U Retracing-resisting dredge pipe device for combined sewage sucking vehicle |
| 11/28/2012 | CN202559520U Sewage suction pipe head with air guide groove |
| 11/28/2012 | CN202559519U Sewage suction pipe head provided with cutoff device |
| 11/28/2012 | CN202559518U All-round rotating sewage suction arm for combined sewage suction truck |