Patents for E02B 5 - Artificial water canals (1,492)
09/1999
09/01/1999EP0688236B1 An apparatus for the separation of solids from flowing liquid
08/1999
08/31/1999CA2009660C Lock using air chambers
08/26/1999WO1999042668A1 Separating grid
08/17/1999US5937849 Covered canal or aqueduct having an integral solar energy concentrating system
07/1999
07/29/1999DE19802979A1 Guard grids at the water inflow to power station turbines
07/20/1999US5925754 Epsilon caprolactam compositions
07/13/1999US5922195 Water filtration
06/1999
06/02/1999CN1218526A Revetement for bank
05/1999
05/11/1999CA2219544C Water filtration system for control of the zebra mussel
04/1999
04/28/1999EP0910707A1 Stepped filtration device for mechanically separating solids from liquids
04/21/1999EP0805939A4 A roof having an integral solar energy concentrating system
04/14/1999EP0908214A2 Trash rack with non-metallic reinforcing rods
04/06/1999CA2108253C Screening rake
03/1999
03/16/1999US5882145 Method for controlling expansion and contraction of trench liners
03/11/1999WO1999011878A1 Pollutant interceptor
03/09/1999US5879106 Method and apparatus for controlling expansion and contraction of trench lines having lateral extensions
03/03/1999EP0898624A1 Revetement for a bank
02/1999
02/25/1999WO1999009297A1 Process for constructing intake pipe
02/24/1999CN2308634Y Microgrille solid/liquid separating machine
01/1999
01/31/1999CA2241047A1 Portable water conveyance assembly
01/13/1999EP0890708A1 Method, system and device for building a wall in the ground
01/13/1999EP0890707A1 Method, system and device for building a wall in the ground
01/12/1999US5858235 Sludge dehydrating press having cylindrical inner screen case
12/1998
12/10/1998WO1998055699A1 Screen cleansing apparatus
11/1998
11/25/1998EP0879144A1 Structure forming method and apparatus
11/25/1998CN1200159A Concrete product for afforestation
11/12/1998WO1998050638A1 Stepped filtration device for mechanically separating solids from liquids
11/12/1998DE19719371A1 Vorrichtung zur maschinellen Feststoffseparation aus Flüssigkeiten Apparatus for mechanically separating solids from liquids
10/1998
10/22/1998WO1998046564A1 Epsilon caprolactam compositions and byproducts
10/22/1998DE19714566A1 Water inlet rack for hydro-electric power station
10/22/1998CA2286071A1 Epsilon caprolactam compositions and byproducts
09/1998
09/22/1998US5810513 Method and apparatus for preventing trench overflows behind trench liners
09/15/1998US5806252 Waterproofing system for hydraulic structures with rigid sheets in synthetic material
09/08/1998US5803662 For installing a channel capable of receiving runoff from athletic surfaces
09/02/1998CN2289828Y Dirt removing machine for dirt screen
09/01/1998US5800077 Method and apparatus for monitoring a hydroelectric facility trash rack
08/1998
08/18/1998US5795467 Adjustable inlet for waste water treatment apparatus
08/05/1998CN1189559A Tech. for clearing reservoir sedimentation by pipeline delivery and digging bar
06/1998
06/23/1998US5770055 Strainer for removing particles from effluent
04/1998
04/22/1998CN1179808A Roof having integral solar energy concentrating system
03/1998
03/10/1998US5725716 Structure forming method and apparatus
01/1998
01/22/1998WO1998002624A1 Method and apparatus for controlling expansion and contraction of trench liners
12/1997
12/23/1997US5700345 Continuous structure forming apparatus
11/1997
11/20/1997WO1997043487A1 Revetment for a bank
11/13/1997DE19718414A1 Method of lining ship canal
11/12/1997EP0805939A2 A roof having an integral solar energy concentrating system
08/1997
08/20/1997CN1157357A Device for cyclic utilization of lock chamber water
08/05/1997US5653553 Drainage channel and associated method
07/1997
07/23/1997EP0682551B1 Strainer for removing particles from effluent
07/01/1997US5643458 Sludge dehydrating press and method for treating sludge
07/01/1997US5642963 Spillway gate system
06/1997
06/24/1997US5641249 Aggregate extruder
06/17/1997US5639331 Method for continuously forming structure from resin, particles, and porous blanket
06/12/1997WO1997020991A1 Drainage channel and associated method
05/1997
05/28/1997EP0775781A1 Waterproofing system for hydraulic structures with rigid sheets in synthetic material
04/1997
04/23/1997CN1148121A Water flow guiding method for narrow river bed
04/02/1997CN2250977Y Eddy preventing and eliminating screen
03/1997
03/20/1997WO1997010389A1 Filter
02/1997
02/13/1997WO1997005338A1 Separator
12/1996
12/04/1996EP0745728A1 Lock gate
11/1996
11/07/1996WO1996034743A1 Structure forming method and apparatus
10/1996
10/22/1996US5567079 Method for the hydraulic branching of an open stream and hydraulically working channel branch
10/15/1996US5564410 Roof having an integral solar energy concentrating system
09/1996
09/26/1996WO1996024012A3 A roof having an integral solar energy concentrating system
08/1996
08/08/1996WO1996024012A2 A roof having an integral solar energy concentrating system
08/08/1996CA2211881A1 A roof having an integral solar energy concentrating system
08/06/1996US5543006 Continuous structure forming method
07/1996
07/24/1996EP0673456B1 Process for hydraulically branching an open stream and canal branch with hydraulic operation
07/17/1996CN1126787A Liquid-repellant covering layer and method for the manufacture of such covering layer
07/17/1996CA2140317A1 Beaver dam culvert block
05/1996
05/22/1996EP0688236A4 An apparatus for the separation of solids from flowing liquid
04/1996
04/17/1996CN1120817A An apparatus for the separation of solids from flowing liquid
03/1996
03/05/1996US5496434 Structure forming apparatus
02/1996
02/22/1996DE19528725A1 Verfahren zur Oberflächendichtung für Erdbaukörper im Wasserbau A method for surface sealing for Erdbaukörper in hydraulic
02/01/1996DE19525883A1 Device for applying sealing or reinforcing clay layers to river or canal bed
12/1995
12/27/1995EP0688904A1 Lock gate
12/27/1995EP0688236A1 An apparatus for the separation of solids from flowing liquid
11/1995
11/29/1995CN1112523A Sludge dehydrating press and method for treating sludge
11/22/1995EP0682551A1 Strainer for removing particles from effluent.
11/16/1995WO1995030543A1 Structure forming method, apparatus and the product
11/16/1995WO1995030542A1 Structure forming method, apparatus and the resulting product
11/16/1995WO1995030541A1 Structure forming method, apparatus and resulting product
11/15/1995EP0581770B1 Screening rake
11/08/1995CN1111317A Coiled well screen
09/1995
09/27/1995EP0674095A2 Well screen with coiled element
09/27/1995EP0673456A1 Process for hydraulically branching an open stream and canal branch with hydraulic operation.
07/1995
07/26/1995CN1105727A Passway capable of making decentralized drift wood automatically flow over dam
07/19/1995EP0663227A1 Sludge dehydrating press and method for treating sludge
06/1995
06/14/1995CN1103691A Branching system for flow of water in open channel
06/06/1995US5422000 Device for cleaning large quantities of water from rakings
06/01/1995DE19501953A1 Barring=off equipment for water turbine intake grille
03/1995
03/22/1995CN2192654Y Automatic cleaning filter
03/22/1995CN2192653Y Assembly irrigation ditch steep slope
02/1995
02/28/1995US5393171 Trench forming assembly and method
02/22/1995CN1099082A Method for dredging river for water transport, navigation and making land
02/07/1995US5387336 Screening rake
11/1994
11/02/1994EP0386209B1 Self-propelled machine for the concreting of ditches
10/1994
10/27/1994WO1994024373A1 Strainer for removing particles from effluent
09/1994
09/21/1994CN1025966C Slope drain canal construction method for non-stable geology area
09/20/1994US5348421 Trench forming assembly and method
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