| Patents for E03F 9 - Arrangements or fixed installations for cleaning sewer pipes, e.g. by flushing (1,182) |
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| 03/27/1997 | DE19648568A1 Pipe cleaning spiral with hand crank |
| 03/20/1997 | WO1997010062A1 Power feed device for sewer and drain cleaner |
| 03/20/1997 | DE19533654A1 Hydrodynamic tool for cleaning tubes and channels |
| 02/27/1997 | WO1997007344A1 Coupling device for sewer and drain cleaning cable |
| 02/27/1997 | CA2229217A1 Coupling device for sewer and drain cleaning cable |
| 02/19/1997 | EP0668802B1 Sanitation device, especially for cleaning pipes |
| 01/30/1997 | WO1996039277A3 Method of cleaning surfaces with an abrasive and a robot for carrying out the method |
| 01/14/1997 | CA2030417C Drain cleaning machine |
| 12/31/1996 | US5588171 Drain line cleaning apparatus |
| 12/19/1996 | DE19622819A1 Functional unit for control and cleansing pipes in drainage lines |
| 12/12/1996 | WO1996039277A2 Method of cleaning surfaces with an abrasive and a robot for carrying out the method |
| 12/12/1996 | DE19601814A1 Verfahren zum Reinigen von Oberflächen mit Hilfe eines Strahlmittels und Roboter zur Durchführung des Verfahrens A method of cleaning surfaces using a blasting agent and robot for performing the method |
| 11/12/1996 | US5572766 In-duct cleaning apparatus |
| 10/31/1996 | DE19616860A1 Verfahren und Vorrichtung zum Reinigen von Rohren Method and apparatus for cleaning pipes |
| 10/24/1996 | WO1996033319A1 Waste water disposal process |
| 10/24/1996 | DE19514359A1 Verfahren zur Ableitung von Abwässern A process for the disposal of waste water |
| 10/09/1996 | CN2237070Y Mud removing cart for sewer pipe net |
| 10/03/1996 | WO1996030719A1 Device for observing inner wall surface of conduit |
| 10/03/1996 | CA2216800A1 Device for observing the inner wall surface of a duct such as a water supply duct or sewage duct |
| 09/18/1996 | EP0570576B1 Method and device for cleaning underwater pipes |
| 09/05/1996 | DE19507051A1 Nozzle body for appliance to clean channels or pipes |
| 08/08/1996 | DE19502734A1 Cleaning sewage pipes using pressurised flushing fluid |
| 05/14/1996 | US5515886 Method and apparatus for repairing a junction pipe connection to a main pipe |
| 04/16/1996 | US5507062 Sealing structure on a mechanism for advancing a rotating cylindrical member |
| 03/26/1996 | US5500974 Device for dredging waste clogged in a toilet, drainpipe, and the like |
| 03/21/1996 | DE19524453A1 Tube cleaning device |
| 03/12/1996 | US5497514 Drain cleaning device |
| 02/27/1996 | US5494235 Apparatus for projecting devices through tubes and conduits |
| 01/31/1996 | EP0428509B1 Improved drain-cleaning implement |
| 01/31/1996 | CN2218782Y Fully automatic dredger |
| 01/25/1996 | DE4425927A1 Method of cleaning pipes containing liquids |
| 12/07/1995 | DE19517775A1 Cleaning capacity measuring device for fluid jet cleaning equipment |
| 11/23/1995 | DE4417753A1 Cleaning appliance for channels or pipes |
| 09/27/1995 | EP0674057A1 Device for automatic cleaning of sewage pipes |
| 09/26/1995 | US5452967 Pipe laying system and method |
| 08/30/1995 | EP0668802A1 Sanitation device, especially for cleaning pipes. |
| 08/29/1995 | US5444887 Method and device for cleaning underwater pipes |
| 07/25/1995 | US5435854 Pipe cleaning modules and systems and methods for their use |
| 06/29/1995 | DE4344748A1 Water pressure producer for gutter cleaning vehicle |
| 06/29/1995 | DE4342613A1 Rinsing and cleansing device for sewer |
| 06/27/1995 | US5426807 Tube cleaning apparatus |
| 06/21/1995 | EP0658657A2 Flushing device |
| 06/15/1995 | CA2137874A1 Flushing device |
| 05/30/1995 | US5418997 Sanitary sewer derooting tool |
| 05/16/1995 | US5414888 Grip handle chuck |
| 03/23/1995 | DE4332126A1 Process and apparatus for cleaning sewage and pipeline systems by means of pressurised water |
| 03/07/1995 | CA1334611C Sewage flushing apparatus |
| 01/18/1995 | EP0633969A1 Jetting head |
| 01/11/1995 | EP0633072A1 Cleaning apparatus for canals or pipes |
| 12/21/1994 | EP0629749A2 Apparatus for cleaning of sewer conduits |
| 12/08/1994 | WO1994027750A1 Hydraulic pipe cleaning and root cutting apparatus |
| 11/09/1994 | EP0623396A1 Apparatus for cleaning sewers or pipelines |
| 11/08/1994 | US5361512 System for applying herbicides to flora infestations within sewer lines |
| 10/13/1994 | DE4411039A1 Rohrreinigungsvorrichtung Tube cleaning device |
| 10/13/1994 | DE4316070A1 Pipe-cleaning apparatus with a milling head |
| 09/21/1994 | EP0616087A1 Communal vehicle with pressure regulating valve |
| 09/14/1994 | EP0615029A1 Drain cleaning machine |
| 07/27/1994 | EP0607612A1 Method for utilizing a pipe cleaning machine and machine for performing such a method |
| 07/21/1994 | DE4301014A1 Pipelines cleaning system using pumped of fresh or recirculated water |
| 07/20/1994 | EP0570576A4 Method and device for cleaning underwater pipes |
| 07/19/1994 | US5329662 Manipulator for conduit cleaner |
| 07/06/1994 | EP0605364A1 Method, especially for the repair of a lateral and a device for carrying out this method |
| 05/17/1994 | CA2002271C Retainer mechanism for drain cleaner drum |
| 05/11/1994 | WO1994009922A1 Sanitation device, especially for cleaning pipes |
| 05/11/1994 | DE4237352A1 Rohrreinigungsgerät Drain cleaner |
| 05/10/1994 | US5309595 Drain cleaning apparatus |
| 04/19/1994 | USRE34585 Pivoting hose storage reel and mounting thereof |
| 04/14/1994 | WO1994008105A1 Improvements relating to the cleaning of pipelines and passageways |
| 04/12/1994 | US5301382 Drain conduit router apparatus |
| 03/17/1994 | DE4230700A1 Cleaning mechanism used in drainage canals - incorporates blocking or damming devices controlled to swirl water to obtain cleaning effect |
| 02/10/1994 | DE4226336A1 Drain cleaning equipment nozzle head - has ball and socket joint in hose connection fitting so that head remains flat on floor of drain-pipe when hose is pulled through bends |
| 02/08/1994 | US5283922 Pipe cleaning tool |
| 02/03/1994 | DE4225372A1 Drain cleaning method - uses pressurised nozzle head which pulsates in resonance with deposits on drain wall to move head along drain |
| 01/25/1994 | CA1326331C Foundation drain cleaning apparatus and method |
| 01/12/1994 | EP0578343A1 High pressure water jet cleaner and coating applicator |
| 01/12/1994 | EP0428653B1 Flushing siphon bag for flushing sewers or the like |
| 01/05/1994 | EP0577549A1 Device for cleaning of waste water pipes |
| 01/05/1994 | EP0577548A1 Syphon device for drains |
| 12/28/1993 | US5273257 Apparatus for controlling movement of a tether in a conduit |
| 12/23/1993 | WO1993025326A1 Improved pipe cleaning modules and systems and methods for their use |
| 12/23/1993 | CA2138266A1 Improved pipe cleaning modules and systems and methods for their use |
| 12/22/1993 | CN2150262Y Sewer pipe dredging machine |
| 12/16/1993 | DE4218808A1 Flush water reclamation system for street cleaning vehicle - using combination labyrinth and perforate screen filter |
| 11/30/1993 | US5265301 Drain cleaning apparatus |
| 11/24/1993 | EP0570576A1 Method and device for cleaning underwater pipes. |
| 11/02/1993 | US5257433 Cleaner for piping |
| 11/02/1993 | CA1323770C Root repelling pipe joints |
| 10/27/1993 | EP0567010A2 Channel construction with flushing device |
| 10/14/1993 | WO1993020295A1 Jetting head |
| 10/07/1993 | DE4211146A1 High pressure water jet equipment for cleaning out pipework etc. - has limit clutch in lance hose feed drive so that lance advances with pecking action when obstruction in pipe is encountered |
| 09/16/1993 | DE4207836A1 Cleaning drains and concealed pipelines - using cleaning mixture of gas and air and fluid emerging from nozzles of cleaning head. |
| 09/15/1993 | EP0560542A1 Motor brake unit for rotary drain and sewer router |
| 09/14/1993 | US5244505 Method for cleaning pipe |
| 09/02/1993 | DE4206409A1 Pipework cleaning vehicle with hydraulic pump - which operates a pressure converter to pressurise water along hose to cleaning head inserted in pipes. |
| 08/31/1993 | US5239724 Mechanism for advancing a rotating cylindrical member |
| 08/18/1993 | EP0555277A1 Apparatus for projecting devices through tubes and conduits |
| 08/17/1993 | US5235718 Tube cleaning apparatus |
| 07/13/1993 | US5226207 Sewer unclogger |
| 06/29/1993 | US5222270 Electromagnetic motor brake unit for rotary drain and sewer router |
| 06/05/1993 | WO1993010919A1 Method and device for cleaning underwater pipes |