Patents
Patents for E03F 5 - Sewerage structures (11,230)
05/1995
05/30/1995US5419359 Gas and liquid backflow-preventing valve device for drains
05/24/1995DE4339483A1 Control-service and-or repair shaft for supply and or waste disposal lines
05/18/1995WO1995013434A2 Drainage system
05/17/1995EP0653233A1 Plant for separating floating and suspended matter
05/16/1995US5415499 Method for the repair of existing manholes using elastomeric materials
05/09/1995US5413307 Precast manhole invert forming
05/06/1995CA2102556A1 Method for the repair of existing manholes using elastomeric materials
05/04/1995DE4437873A1 Waste-water discharge
05/03/1995CN2196141Y Metallic cover plate for escape canal
04/1995
04/27/1995WO1995011355A1 Sewage treatment plant
04/27/1995DE4337387A1 Process for dirty water disposal in the wet cleaning of furnaces
04/27/1995DE4336228A1 Rainwater settling tank for sewerage systems with an overflow for clarified water
04/26/1995EP0649346A1 Device for centrically charging circular tanks
04/25/1995US5408706 Fitting assembly for vinyl lined pools
04/20/1995DE4335335A1 Petrol separator (low-viscosity-liquid separator) with overflow safety device
04/13/1995DE4334747A1 Shaft ring for waste-water (sewage) shafts in a separation system with integrated rainwater line, with a concrete part which is integrally formed on in the manner of a bracket and intended for closed rainwater lead-through
04/12/1995EP0559670B1 Cap for a shaft
04/11/1995US5405539 Waste runoff water treatment utilizing a collection box with inlet for drainage water and outlet for filtered water; filtration
04/11/1995US5405538 Immiscible liquids separator
04/11/1995US5405530 Separator for separating floating and sinking matter from waste water contaminated with said matter
04/11/1995US5405218 Spraying with fast curing material
04/06/1995WO1995009285A1 Device for removably fixing plunger elbows
04/05/1995EP0646204A1 Drywell cover and drywell
04/04/1995US5403474 Curb inlet gravel sediment filter
03/1995
03/30/1995WO1995008717A1 Device for limiting the outflow and simultaneous intermediate storage of waste water and separation
03/29/1995EP0645495A2 Cleaning device for water flowing in a sewer
03/29/1995CN2193387Y Road water discharge plate
03/28/1995US5401114 Manhole ventilation insert with duct shut-off device
03/28/1995CA2133022A1 Spill containment system
03/23/1995WO1995008031A1 Transformer station
03/22/1995EP0644366A2 Flange connection with a fixed and a loose flange
03/16/1995DE4407343A1 Apparatus for separating off particles having solid consistency from a liquid
03/16/1995DE4330838A1 Pumping station for liquids
03/16/1995DE4330553A1 Ground gulley
03/09/1995DE4325278C1 Arrangement for separating coarse matter and/or bulky materials in rainwater-surplussing works
03/08/1995EP0641900A1 Handling device for a dirt capture device in a manhole cover assembly
03/01/1995EP0640728A1 Drainage channel with grating
03/01/1995EP0640370A2 Device for discharging solid compounds from a fluid
02/1995
02/23/1995DE4327726A1 Solids separating apparatus provided for clarification plants
02/21/1995US5391295 Spill containment system
02/18/1995CA2113236A1 Sewer chimney system
02/15/1995EP0638692A1 Process for downward sloped discharge of fluids and installation for carrying out the process
02/14/1995CA2084632C Adjustable removable cunette
02/09/1995DE4326603A1 Sewage treatment plant with activation tank
02/08/1995EP0637653A2 Device for separating, in particular coarse contaminants in separation plants for water protection
02/08/1995EP0637652A1 Shaft element of an inspection chamber
02/08/1995CN2189174Y Automatic rotating device for removing sludge from grate
02/08/1995CN2189173Y Gully gratings made of polymer and concrete
02/07/1995US5387054 Scouring system for automatically scouring an empty liquid reservoir
02/07/1995US5386669 Corrosion resistant leakproof plastic manhole system
02/01/1995EP0636787A1 Unidirectional pumpturbine
02/01/1995EP0636751A1 Device for retaining solid matters carried by water at the overflow of rainwater-discharge systems
01/1995
01/26/1995DE4425488A1 Roadway/pavement stepped covering
01/25/1995EP0635085A1 Chain conveyor or scraper, in particular for sewage installations.
01/24/1995US5383311 Lined structure and liner
01/19/1995DE4341803C1 Valve for allowing air into and out of a sewer
01/12/1995DE4420030A1 Throughflow-speed regulator for gas/liquid separation
01/12/1995DE4321795A1 Process for the purification of pourable materials
01/11/1995EP0548149B1 Flow controlling device for a discharge system such as a drainage system
01/10/1995US5380436 Solid-liquid separator
01/05/1995DE4339036C1 Sealing rotary connection
01/04/1995CN2186771Y Vertically bound rectangle oblique
01/03/1995US5378375 From sewage treatment plant; generating turbulence to breakdown fecal contaminants, dewatering, compaction; pollution control
12/1994
12/28/1994EP0631019A1 Manhole or container
12/28/1994EP0630674A1 Apparatus for separating debris from a polluted liquid stream in a gully, especially from purification plants
12/27/1994US5375940 Water permeable landscape ditch cover
12/22/1994DE4315308C1 Lining for concrete structures
12/19/1994CA2098795A1 Setup for the transformation of husbandry dung to the manure
12/13/1994US5372715 Siphonage floor drain and port protector
12/13/1994US5372714 Storm sewer catch basin and filter
12/13/1994US5372713 Long sand trap for separating and removing sand from water from inflow channels
12/08/1994WO1994028260A1 Floor drain with a water trap
12/07/1994EP0627530A1 Flow control device
12/01/1994DE4317559A1 Shaft arrangement
11/1994
11/30/1994EP0626189A2 Deodorizing filter
11/30/1994CN2184029Y Composite grid of sewer
11/24/1994WO1994026416A1 Readily installed universal sewage grinder pump
11/24/1994DE4333903A1 Filter device for cleaning liquids
11/23/1994EP0625365A1 Separator for fluids
11/23/1994EP0509011B1 Liquid flow apparatus
11/23/1994CN1026717C Rain bar made by reinforced concrete
11/22/1994US5366318 Sump assembly
11/17/1994DE4414093A1 Tauchwandanordnung in einer Regenwasseranlage Baffle arrangement in a rainwater system
11/17/1994DE4315535A1 Plastic shaft
11/16/1994CN1095128A Arrangement for removal of objects to be seperated from liquid
11/15/1994US5364535 Attaching absorbent pad to catch basin that floats on water surface; removal when saturated
11/10/1994DE4315110A1 Apparatus for scooping off material floating on a liquid surface
11/10/1994DE4314958A1 Device for recovering energy from flowing water
11/09/1994EP0623713A1 A method and a device for automatic circulation in a waste water pump station
11/09/1994EP0623712A2 Device for removing separable matter from a liquid
11/09/1994EP0623711A2 Strainer for gully
11/08/1994US5362386 Support mechanism of overflow weir in sewage disposal tank
11/08/1994CA2053446C Process and apparatus for groundwater extraction using a high vacuum process
11/03/1994DE4414094A1 Siebrechenanordnung für Überlaufbecken Siebrechenanordnung for Overflow
11/03/1994DE4413841A1 Siebrechenanordnung für Überlaufbecken Siebrechenanordnung for Overflow
11/02/1994EP0622496A1 Method for making a manhole
11/01/1994US5360555 Solids handling in an oil/grease separator
11/01/1994US5360290 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump
11/01/1994US5360289 Drainage water pumping station and method for operating the same
11/01/1994US5360284 Precast concrete drain inlet