Patents
Patents for E03F 5 - Sewerage structures (11,230)
04/1987
04/09/1987DE3603825A1 Device for closing off building openings
04/09/1987DE3546174A1 Apparatus for keeping sewage away from a receiving watercourse
04/09/1987DE3535260A1 Separator for settling solids and low-viscosity liquids
04/02/1987DE3533616A1 Heating unit for discharge means exposed to frost
03/1987
03/26/1987WO1987001769A1 Pump with continuous inflow and pulsating outflow
02/1987
02/26/1987DE3529760A1 Sand trap for separating off sinking materials from waste water
02/26/1987DE3529669A1 Drainage appliance
02/25/1987EP0211475A2 Skimmer system
02/25/1987EP0211164A2 Method and device for surveying drain systems of rain water reservoirs
02/25/1987EP0211058A1 Liquid storage space with scavenging device.
02/25/1987CN85105961A Device of suctorial transfer system used for liquid, especially for sewage
02/12/1987WO1987000880A1 Safety device
02/12/1987DE3525667A1 Liquid storage chamber having a flushing device
02/11/1987CN86102557A Frictional snap-ring sealing joint for water drain pipe
02/05/1987DE3616933A1 Process and apparatus for monitoring discharge systems of stormwater tanks
01/1987
01/22/1987DE3525729A1 Protective container with house connection shut-off valve and control box for a low-pressure waste water system
01/15/1987DE3524385A1 Apparatus for separating off solid components from liquids
01/08/1987DE3522874A1 Back flow seal with a flap, fixing device and tearing-open device
01/08/1987DE3522676A1 Intermediate ring for a manhole cover
01/06/1987US4634524 Rotating grizzly
01/02/1987DE3523423C1 Road gully
12/1986
12/23/1986CA1215652A1 Sewage flow control apparatus
12/17/1986EP0205013A2 Device for regulating the spill of water from a rain reservoir or a canal duct
12/10/1986EP0204170A1 Sewage transporting device
11/1986
11/18/1986US4622703 Drain fitting with frictional seal retention
11/12/1986EP0201072A2 Light liquid separator
11/06/1986WO1986006429A1 A plastics gully
10/1986
10/22/1986EP0198461A2 Device for collecting and removing rough pullutants from sewers or the like
09/1986
09/30/1986US4614480 Liquid pumping system
09/30/1986US4614326 For casting catch basins
09/25/1986WO1986005535A1 Light liquid trap
09/24/1986EP0195364A2 Sewer tube having an automatic no-return valve
09/24/1986EP0195190A2 Reservoir having a water diversion
09/24/1986EP0195189A2 Bell odour seal
09/23/1986CA1211722A1 Device for the separation of substances contained in a liquid
09/16/1986USRE32248 Grate for drainage ducts
09/03/1986EP0193137A2 Sewage pumping station
08/1986
08/28/1986WO1986004944A1 Collector for liquids, with emptying system
08/26/1986USRE32233 Precast concrete catch basin with form for gutter inlet
08/14/1986WO1986004629A1 Liquid storage space with scavenging device
08/13/1986CN85203314U Gully grating with hermitic pan
07/1986
07/30/1986CN85100955A Treatment process for hospital sewage in cold area
07/16/1986EP0187243A1 Concrete mold core assembly
06/1986
06/24/1986CA1206394A1 Method and device for reducing the risk of freezing of surface-water pipe-line systems
06/17/1986US4594740 Sink trap assembly
06/17/1986US4594739 Liquid floor drain
06/11/1986EP0184207A2 Method for manufacturing a trough for a hydraulic screw
06/11/1986EP0183767A1 Tubular trash net for pre-treating sewage.
06/10/1986US4594157 For storm sewer cover; f-shaped bracket
06/10/1986US4594153 Lifting sewage from wet well
05/1986
05/06/1986US4586941 Sewer odor adsorber
04/1986
04/23/1986EP0178829A2 Improvements in road gullies
04/16/1986EP0177604A1 Telescopic column pipe to be located in the ground
04/15/1986US4582083 Discharge regulator
03/1986
03/26/1986EP0174968A1 Plant for the treatment of road waste waters.
03/25/1986US4578188 Sewerage flow diverter
03/05/1986EP0172966A1 Sewer relief valve
01/1986
01/28/1986US4566483 Drop manhole precast encasement
01/21/1986US4565347 Apparatus for forming a manhole base
01/15/1986EP0167950A2 Apparatus for separating liquids
01/07/1986CA1198964A1 Sewer restriction plate
12/1985
12/19/1985WO1985005616A1 Tubular trash net for pre-treating sewage
12/04/1985EP0163158A2 Device for removing a floating material from a liquid flowing in a sewer
11/1985
11/26/1985US4554772 Boot guard for sewer manhole construction
11/19/1985US4553561 Device for the prevention of flooding from drainage systems
11/13/1985EP0161228A2 Plant for treatment of urban runoff water
11/13/1985EP0160641A1 Pump station.
11/12/1985CA1196543A1 Floor drain or some other cupped water seal
11/07/1985WO1985004920A1 Telescopic column pipe to be located in the ground
09/1985
09/26/1985WO1985004204A1 Plant for the treatment of road waste waters
08/1985
08/28/1985EP0152638A2 Tilting flushing pan suspended on at least one girder
08/21/1985EP0151905A2 Composite chamber made of PVC or other polymer materials
08/06/1985CA1191362A1 Mold and gasket seal for mansonry wall opening
07/1985
07/17/1985EP0148231A1 A device for controlling the flow in a pipe system
07/16/1985US4529359 Sewerage pumping means for lift station
07/09/1985US4527295 Tank flushing apparatus
06/1985
06/18/1985US4524262 Electrically heated sewer vent line defroster
06/11/1985US4522533 Flow restrictor
05/1985
05/29/1985EP0143072A2 Drain for removing ground water
05/22/1985EP0142462A2 Artificial sump in a water tank having a flushing device
05/14/1985CA1186871A1 Method and apparatus for forming inverts in manhole assemblies and the like
05/09/1985WO1985001974A1 Device for regulating the flow of a fluid from a container
04/1985
04/25/1985WO1985001781A1 Pump station
04/16/1985CA1185474A1 Grate for drainage ducts
03/1985
03/26/1985CA1184473A1 Device for automatic circulation in sewage water pump stations
02/1985
02/13/1985EP0132775A2 Flow regulator
01/1985
01/31/1985WO1985000446A1 A device for controlling the flow in a pipe system
01/22/1985US4494891 Grating for a highway construction in particular for a sewer opening
01/22/1985CA1181315A1 Drainage seal for sewage system
01/16/1985EP0131009A1 Motor-pump unit lowerable into a container
01/08/1985US4492635 Device for separating solid substances from liquids
01/01/1985US4491278 Comminutor for inline flow of sewage
12/1984
12/18/1984US4488963 Sewage system for waste water
12/11/1984US4487219 Floor drain or some other cupped water seal
12/04/1984US4486122 Method and device for reducing the risk of freezing of surface-water pipe-line systems
11/1984
11/21/1984EP0125999A1 Connection box for rain water conduits used in the building industry
11/20/1984US4483643 Manhole construction
11/14/1984EP0124888A2 Removable siphon for horizontal floor drains
11/14/1984EP0124644A2 Method and apparatus for removing oil from water
11/06/1984US4480655 Liquid-plug-creating device