| Patents for E02B 7 - Barrages or weirs; Layout, construction, methods of, or devices for, making same (4,285) |
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| 08/28/1991 | EP0443105A1 Hinged-leaf gate of a hydrotechnical flood control construction |
| 08/28/1991 | EP0443096A1 Hydrotechnical flood control construction |
| 08/28/1991 | EP0443095A1 Hydrotechnical flood control construction |
| 08/20/1991 | US5040919 Device for controlling flood waters and/or hazardous liquid spills |
| 08/14/1991 | EP0440603A1 Crest gate |
| 08/07/1991 | EP0439568A1 Sluice with automatic gate. |
| 07/31/1991 | EP0438549A1 Threshold construction for a tilting weir. |
| 07/24/1991 | CN2081400U Gate open and close device |
| 07/16/1991 | US5032038 Overflow spillway for dams, weirs and similar structures |
| 07/10/1991 | CN1052914A Overflow spillway for dams, weirs and similar structures |
| 07/03/1991 | EP0435732A1 Spillway for high water for barrages and similar structures |
| 07/03/1991 | CA2007089A1 Crest gate |
| 06/26/1991 | EP0434521A1 High water spillway for barriers and similar works |
| 06/18/1991 | CA1284890C Method for rendering waterproof a roller compacted concrete or rubble hydraulic structure |
| 04/18/1991 | DE3934530A1 Controlling water level of reservoir - involves using dam formed from inflatable flexible tube |
| 04/17/1991 | CN1012380B Method for rendering waterproof roller compacted concrete or rubble hydraulic structure |
| 04/03/1991 | CN2074321U Automatic control gate for hydraulic engineering |
| 02/16/1991 | CA2014364A1 Sectional member with frame corners resistant to bending and its use |
| 02/13/1991 | EP0412652A2 A sluice gate or penstock door |
| 02/12/1991 | CA2021987A1 Sluice gate or penstock door |
| 01/24/1991 | WO1991000940A1 Sluice with automatic gate |
| 01/23/1991 | EP0409544A1 Belt-like bag bodies |
| 01/09/1991 | CN2068977U Automatically opening and closing gates in meshed gears |
| 01/01/1991 | US4981392 Water inflatable structural module |
| 01/01/1991 | US4981391 Inflatable portable dam for containment of hazardous liquids |
| 12/27/1990 | WO1990015902A1 Threshold construction for a tilting weir |
| 12/19/1990 | CN2067725U Automatic opening and closing device for remote-control and-measure of sluice |
| 11/28/1990 | EP0399870A1 Prefabricated element for the construction of a dam facing and construction method for such a dam |
| 11/28/1990 | CN2066457U Soft sealing type plastic gates |
| 11/14/1990 | EP0397609A1 A hinge device for the articulation of pivoting sluice gates to a bed, provided with a releasable coupling for fixing it to the bed |
| 11/01/1990 | WO1990012946A1 Draught balanced door system |
| 10/30/1990 | US4966491 Subsurface dune protection system and method |
| 10/24/1990 | CN2064373U Auto-regulating device for sluice |
| 10/16/1990 | US4963057 Sluice gate for automatically regulating a level |
| 09/12/1990 | EP0387192A1 Stop logs |
| 08/29/1990 | EP0248725B1 Method of rendering a hydraulic structure made of compacted concrete or filled earth water-tight |
| 08/23/1990 | WO1990009496A1 Sectional bar with rigid gussets and its use |
| 08/22/1990 | EP0382889A1 Section bar with an angle member stiffened against bending, and its use |
| 07/26/1990 | DE3916558A1 Wall opening-shutting mechanism - comprises sliding wall thrust transversely against seal in final stage of shutting movement |
| 07/25/1990 | EP0379327A1 Collapsible rubber dam |
| 06/27/1990 | EP0374170A1 Mechanical automatic tilting weir with self-adjusting lowering of the weir-level during larger discharges. |
| 06/19/1990 | US4934868 Water control structure and roller assembly therefor |
| 06/19/1990 | US4934867 Sealing device ensuring lateral tightness of a weir gate |
| 05/15/1990 | US4925709 Net of plastic rings connected by connector means |
| 05/03/1990 | DE3844641A1 Flood-protection arrangement and/or retention protection for environmentally hazardous liquid media |
| 05/01/1990 | US4921373 Barrier for containing floods |
| 04/25/1990 | EP0364997A2 Bituminous core sealing for earth works, and method for producing same |
| 04/03/1990 | US4913583 Method for waterproofing a roller compacted concrete of rubble |
| 03/20/1990 | US4909666 Damage-protecting flexible sheet dam |
| 03/06/1990 | US4906134 Self supporting flexible wall dams |
| 02/28/1990 | EP0356362A1 Water course barrage or coffer dam |
| 01/25/1990 | WO1990000649A1 Crest gate |
| 01/25/1990 | WO1990000648A1 Flood protection device and/or retaining structure for pollutant liquid media |
| 01/18/1990 | DE3823586A1 Flood-protection arrangement and/or safety retention arrangement for environmentally hazardous liquid media |
| 01/17/1990 | EP0155948B1 Improvements in or relating to river control structures |
| 12/14/1989 | WO1989012143A1 Flow check for open waters, in particular storm-tide barrier |
| 12/07/1989 | DE3819194A1 Sperr-mittel gegen den sturmflut-stau in flussmuendungen Barrier-medium against the storm surge-jam in the estuaries |
| 12/07/1989 | DE3448322C2 Flood water protection wall |
| 12/06/1989 | EP0345180A1 Door seal for water slide gates |
| 11/29/1989 | CN1037561A New method for building water gate |
| 11/21/1989 | US4881854 Pressure activated fluid retaining system and method |
| 11/21/1989 | US4881848 Method of forming an immersed dam foundation and a dam structure thereon |
| 11/15/1989 | CN1037184A Whole installed or removed steel shutter |
| 11/02/1989 | EP0340125A1 Joint for side sealing of a leaf dam |
| 10/31/1989 | US4877537 Pumping system for gates |
| 10/31/1989 | US4877352 Method and apparatus for control of an upstream water level |
| 10/25/1989 | CN2046510U Sufety protective device for screw type switching machine |
| 10/11/1989 | CN2045759U Movable pitchfork gate dam |
| 09/26/1989 | CA1259807A1 Rcc dam construction and method |
| 09/21/1989 | DE3808269A1 Method of constructing a retaining dam and prefabricated steel member, in particular for a retaining dam constructed according to this method |
| 09/14/1989 | DE3904669A1 Barrier for outgoing liquids |
| 09/06/1989 | CN1035336A Construction technology of fluid-alluvial earthwork machine |
| 08/30/1989 | EP0330554A1 Method and device for the continuous construction of concrete constructions |
| 08/09/1989 | CN2042475U Movable elevating mechanism for vertical-lift gate with multi-lift-points |
| 07/18/1989 | US4848962 Slide gate and seals therefor |
| 07/11/1989 | US4846603 Set-up/down plural-span weir assembly made of flexible sheets |
| 07/05/1989 | CN2040506U Adjustable measuring weir |
| 06/28/1989 | CN2040115U Sliding type canal gate valve |
| 06/08/1989 | DE3833561A1 Device for the liquid-tight closure of building openings, basin (tank) openings, lock openings or the like |
| 06/07/1989 | CN1004435B Movable single-directional damping diving dam |
| 06/06/1989 | US4836713 Flexible sheet dams |
| 06/06/1989 | US4836711 Hinge-assembly, particularly for underwater mounting |
| 05/30/1989 | US4834579 Waterproofing dams and the like |
| 05/23/1989 | US4832528 Watertight walls for hydraulic structures in compacted concrete and methods for constructing said walls |
| 05/23/1989 | US4832527 Vertically reciprocable gates for the control of a liquid media |
| 05/17/1989 | CN1032967A Curtain-type sluice gate |
| 05/02/1989 | US4826359 Structures of compacted materials composed of embankment fixed with a hydraulic binder and processes and machines for constructing them by compacting the slopes |
| 04/26/1989 | EP0312676A1 Hinge structure which makes a swinging movement of a floating boat door possible relative to a land-abutment |
| 04/20/1989 | DE3831362A1 Self-unstoppering throttle-slide-valve arrangement |
| 04/18/1989 | US4821703 Opening method for reinforced concrete wall |
| 03/09/1989 | WO1989002006A1 Mechanical automatic tilting weir with self-adjusting lowering of the weir-level during larger discharges |
| 03/07/1989 | US4810130 Siphon weir with a ventilating mechanism |
| 01/24/1989 | US4799821 Temporary emergency dike for restraining flow of a liquid |
| 01/10/1989 | US4797028 Beaver control siphon apparatus |
| 01/10/1989 | US4797027 Automatic level-regulating sluice |
| 01/04/1989 | CN2030209U Folding multi-hinged-steel gate |
| 01/04/1989 | CN2030208U Closed type water-saving open/close gate |
| 12/28/1988 | EP0079887B1 Multi-purpose precast concrete panels, and methods of constructing concrete structures employing the same |
| 12/22/1988 | DE3818465A1 Building material, process for its production and its uses |
| 12/14/1988 | CN88202099U Force couple embankment gate |