| Patents for E03F 3 - Sewer pipe-line systems (3,593) |
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| 11/08/2000 | CN2404938Y Apparatus for treating toilet garbage |
| 11/07/2000 | US6141916 Surface drain system |
| 11/02/2000 | DE19919197A1 Pipe and channel cleaning vehicle mounts lifting motor accessibly ahead for cutting head and has travel motor within vehicle and is vibration-shielded by upstream brake ring. |
| 10/26/2000 | WO2000062992A1 Spiral pipe using waste plastic material and manufacturing apparatus thereof |
| 10/26/2000 | WO2000062991A1 Adhesive method for spiral pipe |
| 10/26/2000 | CA2536385A1 Expandable connector for borehole tubes |
| 10/24/2000 | US6135748 Apparatus for manufacturing a replacement pipe liner in reduced form |
| 10/19/2000 | WO2000061979A1 Multi-purpose underground utility conduit system |
| 10/17/2000 | US6132137 Drainable fields and associated methods |
| 10/05/2000 | WO2000058560A1 Conduit element, method for making same and assembly component |
| 10/04/2000 | CN1269003A Method and apparatus for cleaning public pipeline and then changed with polyolefin pipeline |
| 10/04/2000 | CN1268606A Prefabricated water jetting head mould, method for mfg. same |
| 09/28/2000 | DE19910439A1 Sewer manhole renewal method uses tubular insert with tube and base and branch pipes |
| 09/27/2000 | CN2398355Y Anti-leakage joint |
| 09/21/2000 | DE19911502A1 Sewage pipe with wear-resistant interior lining consists of outer plastic pipe and inner pipe of plastic material containing glass, ceramics, or similar solids |
| 09/20/2000 | EP1036916A1 Linings for sewers |
| 09/14/2000 | DE19910824A1 Sheet steel drainage channel has removeable cover grid held on cross webs fitted into sides of channel |
| 09/13/2000 | CN1266132A Dedorising sealed sewer pipe cap |
| 09/07/2000 | DE19904475A1 Method for renovating flow channels of e.g. drains, sewage conduit systems involves pressing a hardenable, flexible flat material against the required channel section and hardening this material in situ |
| 09/06/2000 | EP1033523A2 Reconstruction process and device for underground pipelines |
| 09/05/2000 | US6113311 Trench drain |
| 09/05/2000 | US6112935 Catch basin |
| 08/30/2000 | EP0700496B1 Pipe liner |
| 08/22/2000 | CA2176063C One piece coupler for a curb box valve |
| 08/22/2000 | CA2037313C Laying structure for vacuum sewer pipe of vacuum sewage collecting system |
| 08/15/2000 | US6101951 Robot for the repair of sewer pipes |
| 08/02/2000 | EP0726846A4 Wastewater system rehabilitation using multi-layer liner |
| 08/02/2000 | CN2389936Y Backflow preventer |
| 07/26/2000 | CN2389186Y Sealed casing pipe |
| 07/26/2000 | CN2389185Y Device for installing vertical top pipe |
| 07/19/2000 | CN1260429A Excrement and urine conveying apparatus |
| 07/18/2000 | US6089279 Pipe, a method of constructing the pipe and a method of lining or re-lining a sewer using the pipe as a liner |
| 07/18/2000 | US6089275 Replacement pipe for installation in an existing conduit |
| 06/28/2000 | EP1013875A2 Apparatus and method for enlarging the cross section of an underground structure |
| 06/28/2000 | EP1013838A1 Waste transport arrangement |
| 06/27/2000 | CA2053243C Apparatus for use in renovation of tube systems in particular sewer tube systems |
| 06/27/2000 | CA2024023C Vacuum-type sewage collecting apparatus |
| 06/23/2000 | CA2291664A1 Waste transport arrangement |
| 06/21/2000 | EP1010827A2 Light drainage channel |
| 06/21/2000 | DE19858037A1 Leichtrinne Easy channel |
| 06/21/2000 | CN2383899Y Device for draining-off sewage into deep sea |
| 06/21/2000 | CA2292725A1 Device for milling or enlarging the inside diameter or the inside contour of an earthwork |
| 06/15/2000 | DE19911442C1 Renovation method for underground pipe conduits containing light wave conductors uses inner liner material soaked with resin and provided with inner and outer foil |
| 06/15/2000 | DE19856689A1 Channel for drainage of surface water or bulk material comprises lower part opposite which is displaceable relative to upper part, with movable part in area of shoulder |
| 06/08/2000 | DE19905552C1 Pipe side branch connection system for joining existing side branch to new main pipe involves driving plug into side branch before driving new main pipe to replace old pipe |
| 06/07/2000 | CN2381688Y Sewage ventilating pipe on roof |
| 06/07/2000 | CN1053248C Vacuum sewerage system |
| 05/31/2000 | CN2380369Y Steel-fiber cement filtering water-drainage pipe |
| 05/23/2000 | CA2004749C Apparatus and method for improved pipe to manhole sealing |
| 05/18/2000 | DE19851960A1 Channel for drainage of surface water or bulk material comprises lower part opposite which is displaceable relative to upper part, with movable part in area of shoulder |
| 05/17/2000 | EP1001101A2 Drainage channel |
| 05/11/2000 | DE19945689A1 Sewer sanitation device |
| 05/10/2000 | CN1252475A Sewer closing facilities |
| 04/26/2000 | EP0994989A1 Vacuum-operated sewage system and air inlet valve |
| 04/26/2000 | EP0952899A4 Device for trenchless replacement of underground pipe |
| 04/26/2000 | EP0723642B1 Method of lining a pipe |
| 04/25/2000 | US6052960 Water cutoff junction member for concrete products to be joined together |
| 04/13/2000 | WO2000020697A1 Sewage system and method of handling wastewater |
| 04/13/2000 | DE19858586C1 Pipe section, for waste water line, includes angled cleansing connections with disc and cleansing member |
| 04/13/2000 | DE19843263A1 Laying objects in channels, especially cables, involves acquiring channel wall images during forward motion of robot with object, avoiding damage points on return path whilst fixing object to wall |
| 04/05/2000 | CN2372378Y By-pass vertical pipe drainage device |
| 03/29/2000 | CN2371236Y Plastic pipe having internal spiral ridges with reinforced ribs in its hollow wall |
| 03/09/2000 | DE19840312C1 Pressure transmission joint for drain water pipe has elastic inner layer with intermediate layers and outer layers between facing pipe ends |
| 02/24/2000 | DE19837295A1 New design of seal for joint area between waste pipe and sewerage, consisting of three segments of two different degrees of hardness |
| 02/23/2000 | EP0980942A2 Drainage channel |
| 02/23/2000 | EP0817936B1 Process and device for pulling a pipe laid or to be laid in the ground |
| 02/22/2000 | US6027283 End caps for drainage system |
| 02/17/2000 | WO2000008506A1 Device for mounting an internal clamp in a pipe which is not man-sized |
| 02/17/2000 | DE19826155A1 Cable, line and/or conduits laying system especially for unpatrollable underground sewer pipes |
| 02/17/2000 | CA2348628A1 Device for installing an internal clamp in an inaccessible pipe |
| 02/10/2000 | WO2000006843A1 Method for laying data cables and data transmission device for a communal gas, pressure or waste-water pipe system comprising at least one waste-water drain and a service shaft |
| 02/09/2000 | EP0978743A1 Device for mounting a sleeve at the inside of a nonaccessible tube |
| 02/09/2000 | CN2362913Y Water stored elbow capable of convenient removing blocking article |
| 02/03/2000 | DE19833139A1 Connecting a house waste outflow to the sewage system uses a partial opening of the pipe trenches with a drilling for the connecting pipe towards the planned connecting point |
| 01/26/2000 | EP0974704A1 Method to replace parts of sewer channels that comprise in-built elements |
| 01/26/2000 | EP0974703A1 Half-shells to replace parts of sewer channels |
| 01/26/2000 | CN2360469Y Cement drainage pipe |
| 01/20/2000 | DE19831868A1 Method for applying drainage insert for concrete drainage pipe has profiled inserts positioned on the base of the pipe using laser alignment and secured by injected mortar to form a low volume duct |
| 01/19/2000 | EP0874698A4 Method of preventing corrosion in concrete pipe |
| 01/18/2000 | US6015169 Connector for concrete pipes |
| 01/18/2000 | US6014849 Joining method and joining structure as well as form for concrete products |
| 01/13/2000 | DE19829902A1 Sewage channel with concrete pipes contains sacrificial electrodes to neutralize acids and alkaline solutions in waste waters |
| 01/13/2000 | DE19829479A1 Rohre aus Beton und Stahlbeton mit optimierten Eigenschaften und Verlegeverfahren dafür Pipes, concrete and reinforced concrete with optimized properties and installation methods for |
| 01/11/2000 | US6012871 Septic tank system and distribution device suitable for use in sloping terrain |
| 01/11/2000 | US6012477 Circulating drainage system for sewage pipe installation work |
| 01/05/2000 | EP0969154A1 Concrete or reinforced concrete pipes with optimised characteristics and method of laying |
| 12/23/1999 | DE19826991A1 Two part polymer concrete drain |
| 12/22/1999 | EP0964965A1 Sewer pipe |
| 12/21/1999 | US6004068 Method and apparatus for forming a trench or catch basin void |
| 12/15/1999 | EP0964106A1 Method for renovating inaccessible pipes and renovated pipe |
| 12/15/1999 | EP0819231B1 Branched sewer re-lining |
| 12/14/1999 | US6000881 Trench drain |
| 12/09/1999 | DE19835034C1 Method of replacing damaged parts of waste water channels with inserted parts, e.g. optical cables |
| 12/07/1999 | US5997215 Process and device for pulling a pipe laid or to be laid in the ground |
| 12/07/1999 | US5996621 Circulating drainage system for sewage pipe installation work |
| 12/07/1999 | US5996304 Coating composition and method |
| 12/02/1999 | DE19823398A1 Drainage pipe internal lining technique |
| 11/30/1999 | US5992404 Process and device for clearing out joints in masonry |
| 11/24/1999 | CN1236041A Waste water discharging and utilizing pipeline system for building and being easy to construct |
| 11/16/1999 | US5983413 High performance flush toilet |