| Patents for E03F 5 - Sewerage structures (11,230) |
|---|
| 12/25/1991 | CN2091315U Deodorization unit |
| 12/19/1991 | DE4119128A1 Floor drain with detachable odour-trap bell - has valve plate on underside working against detachable stand-pipe mouth |
| 12/19/1991 | DE4119127A1 Electrically heated vent pipe outlet in flat roof - has passage through flange of seal for wiring from beneath to heating coil around circular aperture |
| 12/17/1991 | US5073266 Apparatus for separating commingling heavier and lighter immiscible |
| 12/17/1991 | US5073257 Apparatus for treating water |
| 12/17/1991 | US5073082 Hydraulic screw pump |
| 12/12/1991 | CA2024263A1 Wear resistant offset sidebar chain |
| 12/11/1991 | CN2090397U Automatic draining and odour sealing arrangement |
| 12/10/1991 | US5070896 Portable apparatus for containing and regulating flow of a liquid into a drainage inlet |
| 12/04/1991 | EP0458808A1 A device for the mechanical separation of insoluble solids from a liquid containing said solids. |
| 12/03/1991 | US5069781 Combined floor sink and strainer |
| 12/03/1991 | US5069693 System for area pollution control |
| 11/28/1991 | WO1991018151A1 A manhole |
| 11/28/1991 | DE4016378A1 Measurement weir system for continuous acquisition of data - representing overflow quantity and qualitative parameters using speed probes on moving weir plate |
| 11/27/1991 | EP0458224A1 Segmental throttle with float |
| 11/27/1991 | EP0457951A1 Device for the flow separation of oil from water with flow in meander form |
| 11/21/1991 | EP0457012A1 Drain for floors or roofs |
| 11/21/1991 | EP0457011A1 Drain for a tiled floor |
| 11/21/1991 | EP0456958A1 Sludge collector |
| 11/21/1991 | DE4110091A1 Light-liq. separator using sedimentation and gravitational sepn. |
| 11/21/1991 | DE4105151A1 Supply of energetic flow of water into two neighbouring parts - consists of tilting device with two chambers to discharge water into compartments |
| 11/21/1991 | DE4016115A1 Settling tank for waste water distribution - consists of three coaxial cylindrical chambers |
| 11/21/1991 | DE4015955A1 Light material separator - in which liq. flows radially through vertical, hollow coalescence insert, useful for gravity sepn. of light particles from waste water |
| 11/21/1991 | DE4015577A1 Cleaning of rainwater tanks of drainage system - involves jets of water using water in tank |
| 11/21/1991 | DE4015414A1 Combined sewage and rain-water drainage system - has device which prevents outflow of floating matter |
| 11/21/1991 | DE4015393A1 Floor or roof-drain fitting - has plastics pot receiving outflow of water fitting inside larger steel pot and held by rubber ring |
| 11/13/1991 | EP0456057A1 Separator for light liquids |
| 11/13/1991 | EP0403546B1 A device for controlling fluid flow |
| 11/12/1991 | US5064314 Vacuum sewerage system with increased lift capabilities having electric air admission controllers |
| 11/07/1991 | DE4109119A1 Drain for bathroom - comprises housing contg. height-adjustable applicator piece for inlet grill |
| 11/07/1991 | DE4013774A1 Drainage fitment for tiled floor - comprises plastics pot moulded into four sided concrete plate |
| 11/06/1991 | EP0454794A1 Vacuum drainage system. |
| 10/29/1991 | US5061369 Sub-soil domestic wastewater treatment apparatus having wedge shaped inclined surfaces |
| 10/23/1991 | EP0383884B1 Clamping ring |
| 10/17/1991 | WO1991015634A1 A method for renovating wells |
| 10/17/1991 | DE4105605A1 Pre-clarification of waste water contg. faecal material |
| 10/15/1991 | US5056955 Locking device for coverings for manholes and other ground openings |
| 10/03/1991 | WO1991014837A1 Method and apparatus for preventing water damages due to leaks in plumbing in buildings |
| 10/02/1991 | DE4010403A1 Plastics tank beneath corridors and halls - connects with stone layer with top edge of its opening inwardly bent |
| 10/01/1991 | US5052442 Device for controlling fluid flow |
| 09/25/1991 | EP0448282A1 Separator |
| 09/25/1991 | CN1054818A Upset bolt |
| 09/24/1991 | CA1289481C Drain suited for installation in wooden floors |
| 09/22/1991 | WO1991014838A1 A floor waste fitting support |
| 09/22/1991 | CA2057915A1 Floor waste fitting support |
| 09/19/1991 | WO1991014054A1 Improvement in a sewage |
| 09/19/1991 | WO1991014053A1 Method and apparatus for removing grit from sewage |
| 09/19/1991 | WO1991014052A1 Basin structure |
| 09/19/1991 | DE4008247A1 Control system for storm drain - has programmed control for gate valve and with level monitoring in cistern |
| 09/18/1991 | EP0446200A1 Rainwater storage |
| 09/17/1991 | CA2037568A1 Separator |
| 09/12/1991 | DE4007282A1 Measurement and control for water outflow from raw overflow tank - contains measurement device in outflow pipe of rain overflow tank with motorised selector and level sensor in static chamber |
| 09/11/1991 | EP0445576A2 Toroidal chamber separator |
| 09/11/1991 | EP0445462A1 Electric air admission controller |
| 09/11/1991 | EP0445247A1 Anti-flooding sewage grinder pump liquid level control system in separately mounted canister |
| 09/10/1991 | CA2028587A1 Electric air admission controller |
| 09/10/1991 | CA1288703C Device for collecting and discharging solid matter |
| 09/05/1991 | DE3936752A1 Conduit for waste water incorporating cleaning aperture |
| 09/04/1991 | EP0444646A2 Laying structure for vacuum sewer pipe of vacuum sewage collecting system |
| 09/03/1991 | US5044836 Electric air admission controller |
| 09/03/1991 | US5044394 Apparatus for regulating am outflow |
| 08/28/1991 | EP0220295B1 A plastics gully |
| 08/27/1991 | US5042359 Projectile accelerating device |
| 08/22/1991 | DE4005251A1 Removing suspended particles from liq. by settlement - while slowly moving through one compartment of interconnected series |
| 08/22/1991 | DE4004683A1 Flow out arrangement limiting water tank - has slider in outflow pipe positioned according to output of ultrasonic echo sounding level meter |
| 08/21/1991 | EP0442840A1 Apparatus for constructing manholes |
| 08/14/1991 | EP0441744A2 Coverplate for drainage ditches |
| 08/14/1991 | EP0441442A1 Gully trap for sewage system |
| 08/14/1991 | DE4004382A1 Rain-water drain system |
| 08/13/1991 | US5039263 Cover with integral fastening means |
| 08/08/1991 | WO1991011566A1 Floor drain |
| 08/07/1991 | EP0393094B1 Telescopic well or column pipe |
| 08/06/1991 | US5037541 Sanitary device for sewerage channel |
| 08/06/1991 | US5036882 Valve assembly for decanter for wastewater treatment facility |
| 07/30/1991 | CA1286999C Air conduit for manhole |
| 07/30/1991 | CA1286917C Submersible pump and wastewater basin apparatus |
| 07/25/1991 | DE4038719A1 Passage-flushing equipment with siphon - has vent pipe connected to bell sliding vertically and lockable |
| 07/25/1991 | DE4001921A1 Resist surface of collector panel sepg. light liq. - from tank flushed clean of soil by water jets from apertured meander hose in panel |
| 07/25/1991 | DE4001920A1 Light-liq. separator with improved gravity sepn. - uses flow smoothing and coalescing inserts through which liquids pass, and has internal tubular structure |
| 07/23/1991 | US5034122 Self cleaning static bar grid |
| 07/16/1991 | US5032264 Catch flow restrictor with opening calibrated to flow and head chart |
| 07/16/1991 | CA1286337C Quick disconnect for sewage system |
| 07/11/1991 | DE4042167A1 Device for removing undesirable material from water in sewage works - including inclined screw conveyor with internal ribs on screw housing and spray nozzles for washing material |
| 07/11/1991 | DE4000102A1 Drain fitting for bathroom - has outlet pipe with ball and socket joint |
| 07/10/1991 | EP0436094A1 Drainage trap for bathrooms |
| 07/10/1991 | EP0436093A1 Drainage tray for a shower bath |
| 07/09/1991 | US5030357 Improved srtainer and a rotatable disk to which hydrophobic material are attracted and scraped to be discharged; pollution control |
| 07/05/1991 | WO1991010020A1 Liquid flow apparatus |
| 07/05/1991 | CA2072358A1 Liquid flow apparatus |
| 07/02/1991 | US5028320 Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant |
| 06/26/1991 | EP0434078A2 Light liquid separator |
| 06/25/1991 | US5026202 Sidewall extension member for a drainage channel |
| 06/20/1991 | DE4038622A1 Flushing system for rain-water tank - has small tank which discharges flushing water when full |
| 06/20/1991 | DE3941673A1 Device for removing large impurities from waste water - contg. screw conveyor modified to act as filter and convey impurities unable to pass through filter to sediment disposal |
| 06/19/1991 | EP0432230A1 Use of a device for power supply |
| 06/19/1991 | EP0371068B1 Drainage fitting for a tiled floor |
| 06/18/1991 | US5024550 Trench grate |
| 06/12/1991 | EP0431777A1 Cover for trenches |
| 06/11/1991 | US5022430 Drainage disk for protecting weep channels of masonry floor drain construction |
| 06/09/1991 | WO1991008819A1 Filter arrangement |