Patents
Patents for E03F 5 - Sewerage structures (11,230)
12/2004
12/29/2004EP1491695A1 Electrically conductive confined space ventilator conduit, grounding circuit therefor and corresponding methods
12/29/2004EP1491694A1 Drain water sump
12/29/2004CN2667033Y Environment protection sanitary septic-tank
12/29/2004CN2667032Y Sewer manhole gully grating with spitton
12/29/2004CN1558051A Magnetic odour resistant catch pit cover
12/28/2004CA2185310C Device for rinsing a fluid-storage space
12/23/2004WO2004081305A8 Method and arrangement for renovating well, and inner casing element of well
12/23/2004DE202004015413U1 Einrichtung zur Regenwasserbewirtschaftung Means for stormwater management
12/22/2004CN2665249Y Stink dispelling sand drain cover
12/22/2004CN1181247C Drain and building structure having drain
12/22/2004CN1180988C Water treatment facilities
12/16/2004DE202004015982U1 Flap for throttling discharge/flow in mixed water drain has drive unit to swivel flap and control flow through flow measurement in drain
12/16/2004DE10306142B3 Process to repair drainage shaft structure by cutting trench around top part of trench and insertion of an outer shoring sleeve and replacement top shaft
12/15/2004CN2663552Y Inner and outer ring regular polygon accelerated clarification tank
12/15/2004CN2663551Y Compound mud scraper for depositing tank
12/15/2004CN2663550Y Combined anaerobic tank
12/15/2004CN2663548Y Negative pressure gathering tank
12/15/2004CN1555448A Dual-action decontamination system
12/15/2004CN1555446A Man hole structure, flexible water joint for man hole structure and construction method for man hole structure
12/09/2004WO2004087282A3 Grease removal system
12/09/2004DE20311666U1 Duschbodenelement Shower base element
12/09/2004DE102004022172A1 Upright drain shaft for removal of fine sediment from the area around a sub-surface drain embedded in gravel
12/08/2004CN2661796Y Clip for catch basin decontamination
12/08/2004CN1179103C Square or rectangular roadwork device comprising support frame and covering element
12/02/2004US20040238424 Drainage assembly
12/01/2004EP1266107A4 Method and apparatus for lining manholes
12/01/2004CN2659998Y Composite reinforced drainage shutter grate
12/01/2004CN2659997Y Antitheft portal appts.
12/01/2004CN1177978C Road maintaining piece
11/2004
11/30/2004US6824696 Oil from water separator
11/25/2004WO2004085754B1 Cover arrangement
11/25/2004WO2004085750B1 Shaft cover and method for the assembly thereof
11/25/2004DE202004011000U1 Cleaning device for e.g. rainwater run=off equalizing tanks in sewers, rotated using force of liquid flowing through spray pipe
11/25/2004DE10318831A1 Back water closure for e.g. floor drains, has automatic float buckle with sealing area having independent sealing surfaces such that one sealing surface blocks the flow opening in case the other sealing surface is leaking
11/24/2004EP1479838A2 Plastic drainage channel
11/24/2004CN2658326Y Mechanical anti-theft device
11/24/2004CN2658241Y Improved gutterway cover
11/24/2004CN2658240Y Traction air stopper
11/24/2004CN1548667A Automatically closing multifunctional floor drain
11/23/2004US6821053 Water flow responsive barrier for gutters and storm drains with rotary actuator
11/22/2004CA2428988A1 Instant water seal trap for existing drainage systems
11/18/2004US20040226606 Vacuum valve controller
11/18/2004DE20320636U1 Filter unit for shafts and drain systems comprises a filter flap which is located between the top coarse filter and the bottom outlet, incorporates a filter insert and a droplet catcher, and is pivotable about an axis
11/18/2004DE10316727A1 Ventilation units for waste water treatment plant sewerage channels, each have ventilation head and are also used for e.g. advertising and road lighting
11/18/2004DE10237768B4 Vorrichtung zur Reinhaltung eines Abwasserpumpwerkes Device for keeping a sewage pumping station
11/17/2004EP1476611A1 Vent for and method of concealing and venting a septic system
11/17/2004CN1546815A Main structural member for false floor
11/17/2004CN1546301A Injection moulding process of water resistant and burglarproof manhole cover
11/10/2004EP1475480A1 Locking device for securing a cover to a frame
11/10/2004EP1165446A4 Method and arrangement for introduction of sewage pre-treatment upstream of sewage treatment facility
11/10/2004CN1544768A Mosquito eradication manhole for urban sewer
11/09/2004US6814858 For sterilizing water retained in a water container
11/09/2004CA2429719A1 Stainless steel oil separator
11/09/2004CA2366606C Method and arrangement for introduction of sewage pre-treatment upstream of sewage treatment facility
11/04/2004DE3660775C5 Flüssigkeitsspeicherraum mit spüleinrichtung. Liquid storage space with cleaning unit.
11/03/2004CN2653021Y Automatic closing type rain drainage well grid for road
11/03/2004CN2653020Y Environmental protection water discharge device
11/03/2004CN2653019Y Sewage discharge accelerator for underground water channel
10/2004
10/28/2004US20040211733 Vortex grit collector with mechanical conveyor for grit removal
10/28/2004DE10316173A1 Vorrichtung zum Entfernen von feinem Siebgut aus einer Flüssigkeit Apparatus for removing fine material to be screened from a liquid
10/27/2004CN2651325Y Convenient environmental protective rain drainer
10/27/2004CN2651324Y Protector of drain well
10/21/2004WO2004090246A1 Method for the sanitation of a sewer manhole and use of an associated pipe
10/21/2004US20040208704 Manhole structure constructing method, manhole structure water-stop flexible joint and manhole structure
10/21/2004DE10337408A1 Abdeckungsanordnung Cover assembly
10/21/2004DE10330055A1 Shaft cover for placing on the upper edge of a shaft construction and mounted flush with the top surface of a road surface comprises a frame with a supporting edge, and a lost encasing
10/21/2004DE10314748A1 Verfahren zur Reinigung von aus einem Kanalschacht entweichenden Gasen und hierzu geeignete Abwasser-Biofilter-Anordnung sowie Kanalschacht Process for purifying gases escaping from a manhole or commissioning appropriate sewage biofilter arrangement and manhole
10/20/2004EP1468148A1 Locking device for a covering grate
10/20/2004EP1216331B1 Tank
10/20/2004CN1171524C Method for tackling soil and water loss by-irrigation
10/14/2004WO2004088187A1 Gas purge valve
10/14/2004WO2004087302A1 Biofilter system and method for purifying gases escaping from a gully hole
10/14/2004WO2004087289A1 Device for removing fine screened material from a liquid
10/14/2004WO2004087282A2 Grease removal system
10/14/2004US20040200162 Clamp collar design
10/14/2004DE10314943A1 Paved surface water drainage gutter presents U-floored channel having sides and top all projecting one end and covered by slide sealing strips with drainage apertures.
10/14/2004CA2521377A1 Apparatus for removing fine material from a liquid
10/13/2004CN2647957Y Anti-theft well opening device
10/12/2004US6802962 Deck drain cover plate assembly
10/12/2004CA2379598C Method and apparatus for installing and removing disposable netting in floatables control systems
10/07/2004WO2004085754A1 Cover arrangement
10/07/2004WO2004085750A1 Shaft cover and method for the assembly thereof
10/07/2004US20040195186 Grease removal system
10/06/2004EP1464768A2 Floor drain
10/06/2004EP1100996B1 Drainage outlet part of bridge gully
10/06/2004CN2646259Y Insoluble substance blockage proof, deodorant and rat insect proof device for downflow pipe of storied house
10/06/2004CN2646258Y Sewage and sludge lifting device
10/05/2004US6799606 Drainage pipe covering kit for use during building or floor construction
09/2004
09/30/2004US20040188357 Reducingsolids in fluid flow; fitting filte iwith frame into sewer line; expansion; water pollution control
09/30/2004DE4327121B4 Ablauf zur Montage in vorhandenen Standardtyp-Abläufen Procedure for mounting in existing standard-type processes
09/29/2004CN2644548Y Block-preventing and reclaiming device for building downpipe
09/28/2004US6797162 Catch basin filter for stormwater runoff
09/28/2004US6796325 Apparatus for stormwater retention and release, and method of use thereof
09/28/2004US6795987 Trap guard device
09/23/2004WO2004081305A1 Method and arrangement for renovating well, and inner casing element of well
09/23/2004US20040184911 Liquid seal pump of the helical screw type
09/23/2004US20040182790 Methods of making dual-action decontamination media
09/23/2004DE20304678U1 Drain for a cellar comprises a housing surrounded in its upper region by an annular holder that is surrounded by a ring and can be adjusted in the vertical direction relative to the housing to different ground heights
09/23/2004DE20304640U1 Drain for a cellar comprises a holder provided on a cover for a container for checking the tightness of an inner chamber and accessible from above only when a manually operated slide is closed
09/23/2004DE20304639U1 Drain for a cellar comprises a drainage opening designed as a recess in an annular section of an insert, and a slide eccentrically mounted relative to the insert so that it can pivot
1 ... 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 ... 113