| Patents for E03F 3 - Sewer pipe-line systems (3,593) |
|---|
| 07/10/1990 | US4940359 Chemical safety conduit or trench |
| 07/05/1990 | DE3843747A1 Method and device for constructing concrete strips of accurate profile |
| 07/04/1990 | EP0376916A1 Method for the reconstruction of existing canals, shafts, tunnels or the like |
| 07/04/1990 | EP0375868A1 Pipe joint |
| 07/03/1990 | US4938627 Method of slipliner grouting |
| 06/27/1990 | EP0355089A4 Method of renovating and/or protecting sewers and pipes. |
| 06/21/1990 | DE3842153A1 Drainage gutter |
| 06/13/1990 | EP0372963A1 Apparatus and method for improved pipe to manhole sealing |
| 06/13/1990 | EP0258324B1 Process for restoring channels threatening to collapse, in particular profiled channels |
| 06/13/1990 | DE3841330A1 Elastic sealing ring for a plug-in connection designed as a sliding ring seal |
| 06/07/1990 | DE3840994A1 Joint-injecting unit |
| 05/29/1990 | US4928866 Pipe burster |
| 05/29/1990 | US4928727 In a drainage system for a dwelling having a basement |
| 05/16/1990 | EP0368079A1 Apparatus for demolishing pipes on the inside |
| 05/16/1990 | EP0368068A1 Sealing socket for a channel interface |
| 05/03/1990 | WO1990002851A3 Constructional member and method |
| 05/03/1990 | DE3837161A1 Advancement pipe for advancing from vertical shafts |
| 05/03/1990 | DE3836440A1 Process for the underground production of lines embedded in the soil in a constraint-free manner |
| 05/02/1990 | EP0365900A1 Method for introducing a lining into a conduit, and device for carrying out the method |
| 04/18/1990 | EP0363424A1 Apparatus for working in pipes |
| 04/12/1990 | DE3939796A1 Sewer leak-sealing method - involves delivering swelling granulate by air gun through hole into space below |
| 03/28/1990 | CN2055149U Floor drain with tubular water seal |
| 03/22/1990 | WO1990002851A2 Constructional member and method |
| 03/22/1990 | DE3830821A1 Process and apparatus for relining sewer pipes and the like |
| 03/15/1990 | DE3838239A1 Collector pipe and sewer pipe in which it is possible to walk |
| 03/14/1990 | EP0358247A1 Device for providing a passage in a side wall of a pipe |
| 03/14/1990 | EP0357895A2 Method for fabricating a gutter |
| 03/06/1990 | US4905939 Sewer hose supporter |
| 02/28/1990 | EP0355153A1 Liquid level control system. |
| 02/28/1990 | EP0355089A1 Method of renovating and/or protecting sewers and pipes. |
| 02/13/1990 | CA1265692A1 Storm drain system with incremental catchment |
| 01/30/1990 | US4897135 Method of reconstructing pipe systems using fiberglass laminates |
| 01/25/1990 | DE3824755A1 Drainage gutter |
| 01/17/1990 | EP0350802A1 Method for reconstructing pipe-lines |
| 01/17/1990 | CN2051250U Straight four-way joint specialized for kitchen |
| 01/11/1990 | DE3822159A1 Plug-in connection which can be pre-mounted on the socket side |
| 01/10/1990 | EP0349678A1 Process and device for lining a pipe, in particular a sewer pipe |
| 12/28/1989 | WO1989012721A1 Process for waterproofing a deteriorated drainage channel and giving it mechanical strength and chemical resistance |
| 12/28/1989 | DE3832214C1 Process for exchanging a buried pipeline, and apparatus for carrying out the process |
| 12/28/1989 | DE3821618A1 Socket part for a plug-in socket, comprising two sealing elements, on pipes |
| 12/26/1989 | US4889449 Slipliner grouting method and system |
| 12/19/1989 | US4887585 Method and apparatus for cutting taps in sewer lines |
| 12/14/1989 | DE3820126A1 Domestic water systems |
| 12/14/1989 | DE3819961A1 Sealing element for sockets of two-part plug-in sockets on pipes |
| 12/14/1989 | DE3819562A1 Process and apparatus for reducing sediments in combined-sewage syphons |
| 12/13/1989 | EP0346256A1 Device for the on-site restoration of conduits inaccessible from the interior |
| 12/13/1989 | EP0345324A1 Process for making soil impermeable to water, in particular for repairing leaking underground tubes or for improving the durability of structures |
| 12/06/1989 | EP0344824A1 Method for installing plastic pipe sections in sewer pipes to be restored |
| 11/23/1989 | EP0342897A2 Polymeric films |
| 11/23/1989 | DE3815843A1 Pipes and similar shaped parts consisting of concrete having a corrosion-resistant inner lining and having a partially flexible interconnection |
| 11/16/1989 | DE3815654A1 Adaptation and transition ring for spigots of plug-in sockets K or the like on stoneware or similar socket pipes |
| 11/07/1989 | US4878782 Drain channel alignment and installation apparatus |
| 11/02/1989 | EP0339210A1 Pipe enlarging device |
| 10/04/1989 | EP0335223A1 Connection piece for joining an inaccessible main to a lateral pipe |
| 10/04/1989 | EP0334917A1 Process for repairing pipes |
| 09/26/1989 | US4869294 Buried large cross-section conduit |
| 09/19/1989 | US4867921 Process for installing a new pipe inside an existing pipeline |
| 08/31/1989 | DE3805160A1 Process for the underground connection of a product pipe to a collector, in particular in the region in which it is not possible to walk |
| 08/30/1989 | EP0329678A1 Method and device for replacing damaged pipes buried in the ground. |
| 08/10/1989 | WO1989007293A1 Liquid level control system |
| 08/10/1989 | WO1989007223A1 Method of drilling a branch line aperture after internal lining of a pipeline and a water plug used in the method |
| 08/03/1989 | DE3801472A1 Process for repairing a buried pipeline |
| 08/03/1989 | DE3801469A1 Process for repairing a buried pipeline |
| 08/02/1989 | EP0326412A1 Method of drilling a branch line aperture after internal lining of a pipeline and a water plug used in the method |
| 07/20/1989 | DE3903864C1 Method and apparatus for redeveloping old pipes |
| 07/19/1989 | EP0324463A1 Device for expanding pipes |
| 07/19/1989 | EP0324287A1 Pipe burster |
| 07/13/1989 | DE3801824C1 Method and apparatus for the trenchless laying of supply lines |
| 07/05/1989 | EP0322588A1 Gasket |
| 07/04/1989 | US4844655 Surface drainage conduit installation structure and method |
| 06/29/1989 | WO1989005887A1 Process for making soil impermeable to water, in particular for repairing leaking underground tubes or for improving the durability of structures |
| 06/28/1989 | EP0180625B1 Barrier with internal ducts and construction method |
| 06/22/1989 | DE3740306A1 Adjustable, hydraulic widening apparatus for repairing or renewing underground sewer pipes, by widening with as small an annular space as possible, for the subsequent guiding-in of special short pipes |
| 06/15/1989 | DE3803070C1 Arrangement for advancing an advancement pipe |
| 06/08/1989 | DE3740470A1 Drainage gutter and gutter system constructed therewith |
| 06/06/1989 | US4836714 Enclosed structures of very large cross-section, such as conduits, silos or shelters |
| 05/24/1989 | CN2038127U Water supply and sewerage drained out apparatus for urinal |
| 05/18/1989 | WO1989004435A1 Improvements in or relating to the re-lining of sewers |
| 05/18/1989 | DE3833943A1 Invert |
| 05/18/1989 | DE3737301A1 Process and apparatus for repairing sewer pipes |
| 05/10/1989 | EP0315038A2 Method for working joints in concrete tubes, and device for carrying out the method |
| 05/02/1989 | US4826639 Moulding process and apparatus for making arch-shaped concrete structures |
| 04/20/1989 | WO1989003459A1 Process for repairing pipes |
| 04/13/1989 | DE3732694A1 Process and apparatus for lining sewers |
| 04/12/1989 | EP0310902A1 Prefabrication element for a gutter, and gutter assembled with such an element |
| 04/11/1989 | US4819721 Remotely controlled articulatable hydraulic cutter apparatus |
| 03/30/1989 | DE3733463C1 Process and apparatus for exchanging pipes |
| 03/30/1989 | DE3730315A1 Process and apparatus for repairing sewer pipes |
| 03/28/1989 | US4815895 Construction of tunnels or pipes for use in civil engineering works |
| 03/21/1989 | CA1251331A1 Plant for treatment of urban runoff water |
| 03/09/1989 | WO1989002050A1 Root-repelling pipe joints |
| 03/09/1989 | DE3722640C1 Process for introducing a line, e.g. a surface connection line, into an underground bore |
| 03/02/1989 | DE3728012A1 Process for sealing a leakage point in a buried pipeline to which it is not possible to gain access by foot |
| 02/09/1989 | DE3727786A1 Verfahren und vorrichtung zum installieren einer neuen rohrleitung innerhalb einer bestehenden rohrleitung Method and apparatus for installing a new pipeline within an existing pipeline |
| 01/26/1989 | WO1989000633A1 Process for repairing structures, objects, in particular sewers and pipes of defective stability and watertightness, without dismantling |
| 01/12/1989 | DE3727715A1 Service tunnel with longitudinal bracing in transportable reinforced-concrete rectangular-section segments |
| 01/11/1989 | EP0188487B1 Large cross-section sunken conduit |
| 01/05/1989 | DE3815232C1 Pipe-widening apparatus, in particular for disposal lines in refuse landfills |
| 01/03/1989 | CA1247869A1 Device and method for removing irregularities in or enlarging an underground duct |
| 12/29/1988 | WO1988010393A1 Apparatus for working in pipes |