| Patents for E03F 3 - Sewer pipe-line systems (3,593) |
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| 07/14/2004 | EP1437447A2 Method and apparatus for aligning channel sections with an adjustable alignment key |
| 07/08/2004 | DE20302991U1 Surface drain system has open ducts with interlocking profiled ends to align in curved track and with cover grids with similar ends |
| 07/07/2004 | EP1435416A1 Drainage channel and method for producing such a drainage channel |
| 07/07/2004 | EP1434944A2 Apparatus for fluid transportation |
| 07/01/2004 | WO2004055281A1 Method for rehabilitating existing channels, rehabilitated channel wall, and device for erecting a profiled structure in a channel |
| 07/01/2004 | US20040126186 Landscaping channel liner apparatus |
| 06/30/2004 | EP1432880A1 Drainage device |
| 06/30/2004 | EP0705305B1 Improved structural strength coating and material |
| 06/24/2004 | US20040117907 Method and apparatus for assembling and sealing bathtub overflow and waste water ports |
| 06/24/2004 | DE10343367A1 Water drainage grille for insertion into ramp at entrance to building has folded sheets of metal supporting edges of grille at angle to horizontal, bolted to sides of U-section trough |
| 06/22/2004 | CA2094864C Lining of sewers and the like |
| 06/16/2004 | EP1428948A1 Drainage channel |
| 06/16/2004 | CN2620730Y Water-saving device |
| 06/10/2004 | US20040108009 Method of repairing flow passage |
| 06/03/2004 | WO2004046606A1 Method and apparatus for treating pipes |
| 05/27/2004 | DE10338522A1 Method of placing communications cables in existing water drainage ducts involves using liner with preplaced cables |
| 05/21/2004 | WO2004042268A2 Apparatus and method for installation of pipe liner |
| 05/19/2004 | DE202004003206U1 Hose liner for repair and new construction of pressure and open channels consists of elastic double-layer synthetic foil with intermediate spacers to form chambers for swelling injection material |
| 05/19/2004 | DE202004002105U1 Underground infrastructure ducting system to contain supply and sanitation pipes, cables, etc. consists of modular pre-fabricated chambers so that all required services can be fitted and removed without digging-up roads |
| 05/19/2004 | DE202004001009U1 Monolithic drain system to remove excess surface water consists of drain body of concrete with plastic lining, and permanently fixed cover of cast iron |
| 05/19/2004 | CN1497112A Environmental protection water-saving toilet and method for mounting environmental protection sewer |
| 05/13/2004 | US20040089358 Lining of pipes |
| 05/12/2004 | EP1272342A4 Liner for waste water system rehabilitation |
| 05/06/2004 | DE19945689B4 Vorrichtung zum Sanieren von Kanälen Apparatus for remediating channels |
| 05/05/2004 | CN1493812A Method for repairing runner |
| 05/04/2004 | US6729795 Increased flow capacity; and facilitates on-site installation |
| 04/29/2004 | US20040078954 Sealing methods |
| 04/15/2004 | WO2004031639A1 Means for removal of flow obstructions in pipes provided with rinse ports covered by sealing membranes through which rinsing means can be inserted |
| 04/15/2004 | DE20318807U1 Ventilated pressure fluid duct for rainwater drainage has tapered sections between high point and adjacent drain sections |
| 04/15/2004 | DE10345124A1 Restoration of drainage and sewage channels uses angled polymer concrete components, to line the old upper and side walls, with mutual support at a sealed butt joint between them |
| 04/14/2004 | CN2611459Y Drainage riser structure with integrated tubing and tube element |
| 04/14/2004 | CN2611445Y Sewer filter |
| 04/08/2004 | WO2003083227A3 Improved sewer pipe section |
| 04/08/2004 | US20040065364 Elongated tubal body with effluent confining zone; connecting flexible, corrugated pipes to drainage apertures |
| 04/08/2004 | DE10316161A1 To renovate a side pipe at the junction into a main drain/sewage pipe, an elastic auxiliary tube is inserted from the main pipe through a pressure body and deflection to press the cladding tube in place |
| 04/07/2004 | CN1487158A Protected drain pipeline |
| 04/01/2004 | US20040062602 Modular drain and drain system |
| 04/01/2004 | DE10243063A1 Passage element used as a gutter for open water flow at the side of roads and paths comprises a channel having a flat flank surface and a flank surface that rises in the flow direction and increasingly surrounds the channel |
| 03/31/2004 | EP0773427B1 Apparatus for reference laser level setting |
| 03/31/2004 | CN2608581Y Kitchen toilet floor surface leakage proof water pipe joint |
| 03/31/2004 | CN1486408A Lining method of pipes |
| 03/31/2004 | CN1143972C Multi-purpose conduit system and method for placing public facilities in massive structure |
| 03/25/2004 | DE10338178A1 Transponder installation method uses a robot system for mounting transponders or sensors in underground pipelines, whereby the robot drills a small whole in the pipeline to match the transponder size and then inserts and seals it |
| 03/24/2004 | EP1399627A1 Drainage channel base, especially from polymer concrete |
| 03/24/2004 | CN1483562A Technology for producing reinforced concrete drain-pipe |
| 03/24/2004 | CN1143120C Apparatus for reference laser level setting |
| 03/17/2004 | EP1397566A1 Vacuum sewer system |
| 03/16/2004 | US6706384 Liner for waste water system rehabilitation |
| 03/16/2004 | US6705801 Apparatus and method for providing access to buried pipeline |
| 03/11/2004 | DE20318130U1 Rinnensystem Channel system |
| 03/10/2004 | CN2606139Y Steel bar reinforced concrete pipes with ragid socket joints for drainage |
| 03/10/2004 | CN1480676A Flange installation for water drainage, air exhaust and sewage, and its mfg. method |
| 03/04/2004 | WO2004018923A1 Apparatus and method for providing access to buried pipeline |
| 03/03/2004 | CN2605325Y Two-wall winding pipe strap ring type water stop ring |
| 03/03/2004 | CN2605324Y Drain-pipe assembly for washbasin |
| 03/02/2004 | US6698442 Separated sanitary effluent sewer system |
| 02/26/2004 | US20040037648 Apparatus and method for providing access to buried pipeline |
| 02/19/2004 | WO2003093590A8 Slot drain |
| 02/19/2004 | DE20214403U1 Anordnung von Abdeckelementen auf rinnenförmigen Drainage- oder Entwässerungskanälen, insbesondere zur Bildung von rampenartigen ansteigenden Türdurchgangsbereichen von Gebäuden Arrangement of cover on channel-shaped drainage or drainage channels, in particular the formation of ramp-like rising doorway areas of buildings |
| 02/12/2004 | WO2004013529A1 Method for curing a thermocurable matrix |
| 02/12/2004 | US20040025938 Separated sanitary effluent sewer system |
| 02/12/2004 | DE20313762U1 Inspection and cleaning form piece has at least one inlet and at least one outlet, together with upper part, inlet and outlet being connectable with pipe |
| 02/12/2004 | DE20309898U1 Water drainage gutter for flat roof, terrace, balcony has rectangular arrangement of height-adjustable stainless steel feet |
| 02/11/2004 | CN2603143Y Culvert pipe joint |
| 02/05/2004 | DE10232553A1 Device for refurbishing of lateral channel running into main channel, by means of lining sleeve, is formed from individual modules, with cassette module detachably connected to vehicle module |
| 01/28/2004 | EP1384938A1 Method of repairing flow passage |
| 01/28/2004 | CN2601277Y Overflow-proof tee with enclosed valve |
| 01/24/2004 | CA2435838A1 Method of repairing flow passage |
| 01/22/2004 | WO2004007373A2 Septic tank drain field pipe manifold system and method of use |
| 01/22/2004 | US20040010982 Ground rain-gutter |
| 01/21/2004 | CN2600510Y Cement compound drain pipe with plastic lining |
| 01/21/2004 | CN2600509Y Anti-overflow three-way connection for sewer pipeline |
| 01/21/2004 | CN2600508Y Saver pipeline device for toilet draining system |
| 01/21/2004 | CN1469021A Application of hydrophobic and oleophobic nano interface material in toilet |
| 01/21/2004 | CN1469020A Distributing T-pipe water economizer |
| 01/15/2004 | US20040006927 Tubular mesh screen |
| 01/14/2004 | EP1380691A2 Wide channel drainage system |
| 01/14/2004 | CN2599090Y Stainless steel water bath unviersal ripple water reserving bend pipe |
| 01/14/2004 | CN2599080Y New type sewer bubbing-proof device |
| 01/13/2004 | US6675406 Overflow assembly for bathtubs and the like |
| 01/08/2004 | US20040005194 Drainage channel |
| 01/08/2004 | DE20302899U1 Support system for drainage grid has foot carrying vertical threaded shaft passing through transverse bore in head of bolt engaging eye on bottom of grid |
| 01/07/2004 | EP1377770A2 Lining of pipes |
| 01/07/2004 | EP0726846B1 Method for rehabilitating waste water systems |
| 12/30/2003 | US6669839 Wastewater pretreatment, gathering and final treatment process |
| 12/17/2003 | CN2592737Y Heat-shrinkable joint for plastic drain pipe |
| 12/16/2003 | US6663317 Drainage channel |
| 12/11/2003 | US20030228193 Slot drain |
| 12/11/2003 | DE20313557U1 Drainage gully for building outer wall at ground level incorporates sub surface grid under a layer of gravel or shingle |
| 12/11/2003 | DE20212287U1 Stainless steel rainwater gutter to drain surface water from the vicinity of buildings has side-flange anchorage strip |
| 12/10/2003 | EP1368591A1 Sealing methods |
| 12/04/2003 | WO2003062685A3 Shaped section of a polymeric sewer pipeline (variants) |
| 12/03/2003 | CN2589545Y Multifunctional check valve for sewage |
| 12/02/2003 | US6655103 Having spreading wing elements integrally formed on at least one side of plastic panel and supporting webs in their foot region; long-term resistance to ground water pressure |
| 11/20/2003 | US20030213556 Apparatus, methods, and liners for repairing conduits |
| 11/19/2003 | CN2586750Y Effluent sewage discharging automatic control system using public wireless data network |
| 11/18/2003 | US6648002 Vacuum sewer system |
| 11/13/2003 | WO2003093590A1 Slot drain |
| 11/12/2003 | CN1455048A Narrow-groove drainage device |
| 11/06/2003 | WO2003022117A3 Cleaning tool for conduits |