Patents
Patents for E02B 9 - Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same (2,361)
03/1997
03/12/1997EP0584298B1 Elongated housing of large cross-section and its fabrication method
12/1996
12/18/1996CN2242912Y Chain-rake type cleaning machine
12/18/1996CN1138250A Device for assembly active and passive network nodal points package of communication equipment
12/11/1996EP0746653A1 Method and apparatus for focusing wave energy on collecting devices
12/11/1996CN2242266Y Shuttle like pressure-adjusting apparatus for pressure pipe-line of water power plant
11/1996
11/19/1996US5575587 Tide-operated driving system
10/1996
10/31/1996DE19515138A1 Wave power station e.g. for sea or ocean
10/30/1996CN1134488A Silt treatment equipment for hydroelectric power station
10/17/1996DE19513817A1 Pumped storage plant for electrical power generation
10/09/1996EP0736123A1 Wave energy transformer
09/1996
09/24/1996US5558460 Artificial reef structure
08/1996
08/28/1996EP0728873A1 Sheltering device for active and passive connection components of telecommunication equipment
08/23/1996CA2169899A1 Device for housing the active and passive junction assemblies of telecommunications installations
08/21/1996CN2233422Y Curved spring sliding board type supporting device of water gate plate
08/14/1996CN2232935Y Pail-like hydroelectric station
04/1996
04/23/1996US5510656 Wave collector
04/23/1996US5509437 Dry hydrant check valve
03/1996
03/28/1996DE19503563C1 Wave-powered electrical energy generator
02/1996
02/21/1996CN1117103A Longdong hydraulic electrogenerating power unit
02/08/1996DE4426474A1 Hydroelectric power=station flow control
01/1996
01/30/1996US5487621 Large-depth underground drainage facility and method of running same
01/11/1996WO1996000867A1 Fluid circulation pipe
01/11/1996DE4423278A1 Underwater power generation plant
01/11/1996CA2193857A1 Fluid circulation pipe
01/03/1996CN2216603Y Water raiser
01/03/1996CN2216602Y Water raiser
01/03/1996CN2216601Y Water raiser
01/02/1996CA2014141C Fluid transmission line
11/1995
11/14/1995CA2057772C Spillway in case of exceptional floods for dams comprising at least two sluices
09/1995
09/12/1995US5449020 Elongated enclosure of large cross-section, and process for its manufacture
09/08/1995WO1995023923A1 Controlled flow system of power production
09/08/1995WO1995023895A1 Method and apparatus for focusing wave energy on collecting devices
08/1995
08/31/1995WO1995023259A1 Delivery of sea water using tidal movements
07/1995
07/12/1995CN2203320Y Pressure pro-pool deicing device
06/1995
06/29/1995WO1995017555A1 Wave energy transformer
06/07/1995CN1103454A Hydro-electric power generating set using water wheel pump by exhaust and siphon
05/1995
05/11/1995DE4338103A1 Device for obtaining electric energy (power) with the aid of the kinetic energy of water waves
04/1995
04/05/1995EP0526448B1 Serpent sediment-sluicing system
03/1995
03/30/1995DE4332479A1 Water power installation for utilising small gradients
03/30/1995DE4331955A1 Suction device on pumps
03/29/1995CN2193381Y Power station water power sand discharge unit
03/15/1995CN1100164A Hydro-electric generating system
02/1995
02/28/1995US5393418 Water intake, in particular for industrial installations
02/09/1995WO1995004194A1 Method and structure for extracting ground water in an area with impounded aquifers or with aquifers situated at different altitudes
02/08/1995CN1027600C Antiseep method for pressure leading water tunnel
02/02/1995DE4325401A1 Method and plant for recovering energy from water power
01/1995
01/04/1995EP0631637A1 Method and apparatus for the prevention of fouling and/or corrosion of structures in seawater, brackish water and/or fresh water.
11/1994
11/22/1994CA2032275C Spillway weir for dams and like structures
11/01/1994US5360290 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump
10/1994
10/27/1994DE4418581A1 System for converting liquid surface-wave power to electrical power and vice versa
10/26/1994CN1094110A Electric generation method by filling water
10/06/1994DE4322980A1 Power station, prefabricated unit of the power station, and method of manufacturing it
07/1994
07/19/1994US5330289 Serpent sediment-sluicing system
07/06/1994EP0604432A1 Gravitational window shutter for hydro-pneumatic current flow harnessing system
06/1994
06/08/1994EP0600319A1 Method of constructing a water conduit through a barrier, in particular from concrete, under water pressure
03/1994
03/02/1994CN1083167A 拱形结构 Arch
03/02/1994CN1083166A 拱形结构 Arch
02/1994
02/23/1994CN1082649A Stepped hydroelectric system
02/09/1994CN1023723C Spillway for discharging extraordinary floods at dams having at least two floods discharge structures
02/09/1994CN1023722C Overflow spillway for dams structure
02/08/1994US5284402 System for the manufacture and installation of selective intake towers in reservoirs
02/02/1994EP0580688A1 Wave energy converter
01/1994
01/05/1994DE4221657A1 Totally submerged hydro-electricity generation plant - uses water turbine with peripheral cups within turbine housing leading to water-tight sump at lower level
11/1993
11/24/1993CN1078770A 波能转换器 Wave Energy Converter
10/1993
10/26/1993US5255999 Water-level control device
09/1993
09/24/1993CA2091951A1 Apparatus for lifting up water using the ocean tide energy to do so
08/1993
08/26/1993DE4205160A1 Water-driven generation plant - has reservoir with input and output sluices and vertically moving float inside coupled to generator
07/1993
07/29/1993DE4202092A1 Tidal power generator - uses plastic truncated cone anchored to sea-bed with turbine driven by internal airflow caused by tide
07/27/1993US5230215 Ocean current power generation system
07/08/1993WO1993013344A1 Elongated housing of large cross-section and its fabrication method
07/08/1993CA2110902A1 Elongated housing of large cross-section and its fabrication method
06/1993
06/29/1993US5222833 Shutter for hydro-pneumatic current flow harnessing system
06/09/1993EP0545885A1 Small water power plant using bulb turbine
06/08/1993US5217324 Dynamic breakwater and pumping system
05/1993
05/28/1993EP0631637A4 Method and apparatus for the prevention of fouling and/or corrosion of structures in seawater, brackish water and/or fresh water.
04/1993
04/27/1993CA1316675C Method of assembling wound rotor of vertical type adjustable speed hydroelectric rotating machine at its installation site
03/1993
03/23/1993US5195846 Spillway for discharging extraordinary floods at dams having at least two flood discharge structures
02/1993
02/10/1993EP0527075A1 Water-intake, particularly for industrial installation
02/10/1993EP0526448A1 Serpent sediment-sluicing system.
02/09/1993US5184915 Apparatus for lifting up water using the ocean tide energy to do so
02/03/1993CN1068616A Anti percolation method for water guiding tunnel by fracture control
01/1993
01/19/1993US5180254 Fluid-conveying conduit
01/19/1993US5180253 Arrangement of prestressing tendons in a pressure tunnel
12/1992
12/16/1992EP0518802A1 System for the manufacture and installation of selective intake towers in reservoirs
12/13/1992CA2071018A1 System for the manufacture and installation of selective intake towers in reservoirs
11/1992
11/12/1992WO1992019812A1 Gravitational window shutter for hydro-pneumatic current flow harnessing system
11/03/1992US5160036 Automatic pollution containment and alert apparatus for liquid drainages
10/1992
10/29/1992WO1992018704A3 Wave energy converter
10/22/1992DE4112639A1 Tidal pumping plant., esp for coastal oil spill collection , or as barrier - has floating barrier and guide members for light liquids, including specifically shaped pump housing with mixt. inlet in upper front face, 2-part extendable mixt. run-up ramp etc.
10/18/1992WO1992018704A2 Wave energy converter
10/18/1992CA2108577A1 Wave energy converter
09/1992
09/09/1992CN1064330A Floating water intake
08/1992
08/26/1992EP0500270A2 Floating water-intake
07/1992
07/22/1992CN1062942A Spillway for discharging extraordinary floods at dams having at least two floods discharge structures
07/01/1992EP0493183A1 Spillway for exceptional floods for barrages comprising et least two spillways
05/1992
05/19/1992US5113889 Floating intake for transport of liquid from a fixed depth below the surface of a reservoir
03/1992
03/18/1992CN2099142U Swirl type silting up preventing device for conduit
03/04/1992EP0473539A1 Arrangement of tension cables in a pressure gallery
01/1992
01/07/1992US5078542 Apparatus to prevent the entrance of aquatic species into the intake watercourse
12/1991
12/24/1991US5074710 Water gate array for current flow or tidal movement pneumatic harnessing system
1 ... 12 13 14 15 16 17 18 19 20 21 22 23 24