| Patents for E03F 9 - Arrangements or fixed installations for cleaning sewer pipes, e.g. by flushing (1,182) |
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| 08/28/1984 | CA1173206A1 Pipe cleanout tool |
| 08/14/1984 | US4464806 Sewer rod turning machine safety device |
| 05/15/1984 | US4447926 Pipe cleaning machine having a container to accommodate cleaning spirals of various diameter |
| 02/07/1984 | CA1161607A1 Method and implement for cleaning drains |
| 01/04/1984 | EP0097470A1 A device for removing irregularities in or enlarging an underground duct |
| 12/20/1983 | US4420852 Drain cleaning machines |
| 09/13/1983 | US4403885 Cable connector |
| 08/02/1983 | US4395791 Spring feeding mechanism |
| 07/27/1983 | EP0084027A1 Pipe cleaning apparatus |
| 07/05/1983 | US4391288 Method and a device for effecting rinsing of an inverted siphon, which forms part of a sewer |
| 06/21/1983 | US4388741 Automatic sewer cleaning system |
| 05/24/1983 | CA1146996A1 Waste water conveyance apparatus |
| 05/18/1983 | EP0034590B1 A method and device for effecting rinsing of an inverted siphon, which forms part of a sewer |
| 04/27/1983 | EP0077562A2 Pipe cleaning apparatus for sewers |
| 03/15/1983 | US4376321 Automatic drain clean out device |
| 03/01/1983 | CA1141905A1 Drain cleaning apparatus |
| 02/03/1983 | WO1983000298A1 Pipe cleaning apparatus |
| 01/18/1983 | US4369002 Method of emptying pipes driven into earth in nontrench laying and device for carrying same into effect |
| 12/29/1982 | EP0067873A1 Automatic sewer cleaning system |
| 12/21/1982 | US4364141 Sewer cleaning shoe with dam and jet nozzles |
| 12/21/1982 | US4364140 Pipe cleanout tool |
| 12/21/1982 | US4364139 Drum type sewer cleaner |
| 12/21/1982 | CA1137712A1 Mobile sewer cleaning and vacuum unit |
| 12/07/1982 | US4361924 Grip handle chuck |
| 11/24/1982 | EP0065474A1 Drum type sewer cleaner |
| 10/26/1982 | US4356039 Wetting, loosening, and flushing using plunger-equipped apparatus; sewage treatment |
| 10/20/1982 | EP0063093A1 Cable connector |
| 10/14/1982 | WO1982003417A1 Improvements in and relating to the lining of sewers, pipes, or the like |
| 09/29/1982 | EP0061003A1 Pipe-cleaning device with a container for cleaning "snakes" of different sizes |
| 07/27/1982 | US4340988 Canister auger |
| 07/08/1982 | WO1982002221A1 Automatic sewer cleaning system |
| 07/06/1982 | CA1126913A1 Implement for cleaning box culverts |
| 07/06/1982 | CA1126912A1 Implement for cleaning tubular culverts |
| 06/29/1982 | US4337096 Method and implement for cleaning drains |
| 06/22/1982 | US4336074 Method and apparatus for cleaning drains |
| 05/26/1982 | EP0052272A1 Winch for a sewer cleaning apparatus |
| 05/26/1982 | EP0052270A1 Device for cleaning a sewer with a closed cross-section of non-floating sediments |
| 04/27/1982 | US4326893 Implement and method for cleaning tubular drains |
| 04/20/1982 | US4325206 Guide tube for sewer rodding machine |
| 04/13/1982 | CA1121564A1 Spring feed device |
| 03/02/1982 | US4317247 Drive attachment for a drain cleaning plumbing tool |
| 01/20/1982 | EP0044080A2 Implement for cleaning drains |
| 01/05/1982 | CA1115466A1 Mobile sewer cleaning and vacuum unit |
| 12/23/1981 | EP0042243A2 A sewer cleaning shoe |
| 10/06/1981 | US4292704 Sewer cleaning blade stabilizer |
| 09/29/1981 | US4291429 Drill attachment |
| 09/22/1981 | US4290162 Light-weight floor-standing drain cleaner |
| 09/08/1981 | US4287630 Pipe cleaning apparatus |
| 09/02/1981 | EP0034590A1 A method and device for effecting rinsing of an inverted siphon, which forms part of a sewer. |
| 08/18/1981 | US4284931 Overspeed shutdown system for centrifuge apparatus |
| 07/28/1981 | US4280528 Waste water conveyance apparatus |
| 06/09/1981 | US4271556 Pipe cleaning apparatus |
| 04/07/1981 | US4259983 Cleanout fitting with lockable and removable check valve |
| 12/24/1980 | WO1980002855A1 A method and device for effecting rinsing of an inverted siphon,which forms part of a sewer |
| 12/09/1980 | US4237913 High-pressure conduit-cleaning nozzle |
| 11/11/1980 | US4232419 Articulated plumbers snake |
| 10/29/1980 | EP0018337A1 Collecting container arrangement in a vacuum-operated waste-water system |
| 10/21/1980 | US4228990 Hydraulic sewer cleaning system |
| 10/01/1980 | EP0016434A1 Device for the cleaning of channels |
| 08/26/1980 | US4218803 Implement for cleaning tubular culverts |
| 08/26/1980 | US4218802 Drain cleaning apparatus |
| 08/12/1980 | US4216561 Implement for cleaning box culverts |
| 05/06/1980 | US4201597 No dig seepage pit cleaner |
| 01/22/1980 | US4184220 Conduit cleaner |
| 12/25/1979 | USRE30175 Plumbers tool |
| 11/20/1979 | US4174548 Plumber's appliance for clearing drains |
| 07/10/1979 | CA1057915A1 Device and method for unclogging drains |
| 06/05/1979 | US4156950 Culvert cleanout device |
| 05/15/1979 | US4153966 Spring feed device |
| 01/16/1979 | US4134174 Sewer and catch basin cleaner |
| 12/26/1978 | CA1045060A1 Method and apparatus for injecting foam into a pipeline, including an inflatable plug |
| 08/08/1978 | US4104757 Power driven drain cleaner with safety overload clutch |
| 04/11/1978 | US4083384 Method and apparatus for injecting foam into a pipeline, including an inflatable plug |
| 02/14/1978 | US4073302 Cleaning apparatus for sewer pipes and the like |
| 09/13/1977 | US4047253 Device and method for unclogging drains |
| 07/12/1977 | US4034421 Vacuum sewer system including a collecting tank |
| 05/24/1977 | US4025360 Method and apparatus for injecting foam into a pipeline, including an inflatable plug |
| 01/11/1977 | US4001911 Manually operated rotary sewer cleanout device |
| 10/05/1976 | US3983593 Conduit cleaning apparatus |
| 06/01/1976 | US3959840 Pipe cleaning apparatus |
| 05/25/1976 | US3958293 Pipe cleaning machine |
| 04/27/1976 | US3952767 Means for treating roots about drain lines |