| Patents for E02B 8 - Details of barrages or weirs (2,159) |
|---|
| 05/11/1999 | CA2128374C Bar screen having compound fine screen bar rack |
| 05/06/1999 | EP0913182A1 Screening belt machine with involute surfaces |
| 04/28/1999 | EP0910707A1 Stepped filtration device for mechanically separating solids from liquids |
| 04/21/1999 | CN2315142Y Step vertical anti-vortex device |
| 04/20/1999 | US5895579 Controlling velocity of fluid flow; weir adjusts cross-section of intake channel having bar rack or filter screen |
| 04/06/1999 | CA2108253C Screening rake |
| 03/24/1999 | CN2311518Y Diversion gate |
| 03/17/1999 | EP0901540A1 Fish ladder and its construction |
| 03/11/1999 | WO1998056241A3 Flow inducer fish guide and method of using same |
| 03/10/1999 | CN1210181A Lock dam for flood-control and non-lock-counter current waterway |
| 03/04/1999 | WO1999010232A1 Pylon servicing apparatus |
| 01/31/1999 | CA2241047A1 Portable water conveyance assembly |
| 12/30/1998 | EP0887473A2 Device for the cleaning of water bodies |
| 12/23/1998 | WO1998058130A1 Fishway system |
| 12/17/1998 | WO1998056241A2 Flow inducer fish guide and method of using same |
| 12/10/1998 | WO1998055699A1 Screen cleansing apparatus |
| 12/10/1998 | DE19754210A1 Sealing sole construction for opening closable by slider plate |
| 12/09/1998 | CN1201095A Structure for hydropower station preventing reservoir from silting |
| 12/02/1998 | EP0760706B1 An apparatus and a method for the filtering of liquid |
| 11/24/1998 | CA2132463C Fish lift elevator |
| 11/12/1998 | WO1998050638A1 Stepped filtration device for mechanically separating solids from liquids |
| 11/12/1998 | WO1998050132A1 Bar screen with rotating rakes |
| 11/12/1998 | DE19719371A1 Vorrichtung zur maschinellen Feststoffseparation aus Flüssigkeiten Apparatus for mechanically separating solids from liquids |
| 10/22/1998 | DE19723896C1 Spindle drive for hydraulic slider gate for outlet of water works |
| 10/08/1998 | DE19714089A1 Water treatment screen filter |
| 10/07/1998 | CN2293592Y Cable gate hoist |
| 09/03/1998 | WO1998038389A1 Strainer insert |
| 09/03/1998 | CA2282445A1 Strainer insert |
| 09/02/1998 | CN2289829Y Drain contamination device for river channel |
| 09/01/1998 | US5800701 Apparatus, components and a method for the filtering of liquid |
| 08/13/1998 | DE19705248A1 Stop slide valve to shut-off/regulate flowing mediums in settling tanks |
| 08/06/1998 | WO1998033603A1 Universal method of and apparatus for screening debris |
| 08/04/1998 | US5787792 Hydraulically actuated locking element with two locking bolts axially slidable on an axis |
| 08/03/1998 | CA2228190A1 Programmed method of and apparatus for screening debris |
| 07/23/1998 | WO1998031882A1 Raked bar screen |
| 07/21/1998 | CA2199073A1 Guide rollers for cog rake bar screens |
| 06/23/1998 | US5770055 Strainer for removing particles from effluent |
| 05/28/1998 | WO1998022662A1 Screening rake |
| 05/14/1998 | DE19746368A1 Sieve band machine for removal of solids from e.g. power station cooling water |
| 05/06/1998 | CN1180772A Spillway low weir inlet wing wall |
| 04/15/1998 | CN1178854A Storring energy-dissipating method using profiled wide-tail block |
| 04/07/1998 | CA2070466C Cog rake bar screen |
| 03/24/1998 | US5730862 Bar screen with rotating rakes |
| 03/19/1998 | DE19654132A1 Conveyor driven filter for clarification of flowing water |
| 02/17/1998 | US5718771 Frame having dumpable collection hopper and overhead beams supporting movable trolly for positioning/lowering/lifting rake-type gripper |
| 12/11/1997 | WO1997046761A1 Fish ladder and its construction |
| 12/11/1997 | CA2256402A1 Fish ladder and its construction |
| 12/04/1997 | DE19622096A1 Fischaufstiegsanlage Fishway |
| 12/03/1997 | EP0810333A1 Improved filter apparatus |
| 10/29/1997 | CN1163333A Shutoff device |
| 10/01/1997 | CN1160793A Water-dividing sand conveyance control method |
| 09/25/1997 | DE19612005A1 Rake device that aids clean=up of rivers |
| 09/17/1997 | EP0738354B1 Method and apparatus for sewage treatment |
| 08/26/1997 | US5660499 Two-way fish siphon overpass |
| 08/20/1997 | CN1157358A Sand discharge funnel |
| 07/24/1997 | DE19601092C1 Comb-prong fixing device for stepped rake |
| 07/23/1997 | EP0682551B1 Strainer for removing particles from effluent |
| 07/15/1997 | US5647428 Recovery of tube cleaners |
| 05/28/1997 | DE19702709A1 Technical aid to enable ascending and descending of fishes in stretches of water |
| 05/28/1997 | DE19544141A1 Hydro-power plant system with hydro-turbine |
| 05/27/1997 | US5632572 Guidance apparatus and method for anadromous fish |
| 05/21/1997 | CN1150200A Culvert and sluice canal system and method for separating and interception snail from water |
| 05/07/1997 | EP0638003B1 Screening apparatus |
| 04/15/1997 | CA2102022C Man-made steady |
| 04/09/1997 | CN2251579Y Snail sedimentation tank device with arresting net for preventing snail proliferation |
| 04/08/1997 | US5618415 Method for removing debris from a free flowing water system |
| 04/02/1997 | EP0765969A1 Method for trouble free cleaning of bar screens |
| 03/20/1997 | WO1997010389A1 Filter |
| 03/13/1997 | DE19533004A1 Cleaning rake for flowing process or waste water |
| 03/12/1997 | EP0760706A1 An apparatus, components and a method for the filtering of liquid |
| 03/12/1997 | CN1144864A Soft-base low-weir spillway dam energy-dissipation structure |
| 02/19/1997 | CN2247679Y Two-way water stop gate |
| 01/23/1997 | DE19535901C1 Water treatment screen cleaning rake insertion, monitored and linked to control system |
| 01/07/1997 | US5590979 Flexible pipe diffuser and method of using the same |
| 01/02/1997 | DE19621040A1 Sliding gate for rain or drainage layouts |
| 11/27/1996 | CN1136621A Weir crest contracted jet technique and its combined energy dessipator |
| 11/21/1996 | DE19619619A1 Escape ramp for frogs, toads or newts |
| 11/21/1996 | DE19619618A1 Sewer outlet or inlet with amphibian passage |
| 11/14/1996 | WO1996035842A1 Rake for cleaning the grating of a screening plant |
| 11/12/1996 | US5573659 Filter apparatus |
| 11/05/1996 | US5571406 Roving bar screen |
| 10/23/1996 | EP0738354A1 Method and apparatus for sewage treatment |
| 10/16/1996 | CN1133406A Double-gear hydaulic cylinder type operation device |
| 10/15/1996 | US5565093 Conveyor-band filter apparatus |
| 09/19/1996 | DE19509738A1 Rake appliance with rake and reamer |
| 09/03/1996 | US5551137 Method for assembling waste materials filtering apparatus |
| 07/18/1996 | DE4439210C1 Raking unit for mechanical treatment of waste water |
| 07/17/1996 | CA2140317A1 Beaver dam culvert block |
| 07/09/1996 | US5534140 Bar screen having compound fine screen bar rack |
| 07/03/1996 | EP0719896A2 Double pinion cylinder type operating apparatus |
| 06/20/1996 | DE19510347C1 Fish ladder to by=pass dam |
| 06/11/1996 | CA2045139C Automatic swing fishway apparatus |
| 05/22/1996 | EP0712968A2 Sealing means |
| 05/08/1996 | EP0549768B1 Machine for cleaning gratings by means of an oscillating arm for hydraulic weirs |
| 05/01/1996 | EP0709525A1 Screen for a rainwater overflow |
| 03/21/1996 | DE4432949A1 Flat, rectangular slide valve |
| 02/14/1996 | CN2219905Y Automatic opening or closing water-taking device by reservoir buoyancy |
| 02/08/1996 | DE4427329A1 Trash rack cleaner with shaft=fitted comb |
| 02/06/1996 | US5489378 Differential relief mechanism for a traveling water screen |
| 01/25/1996 | DE4443091C1 Drum water filter outer rim supported by rollers held within ring rail |