Sewerage structures

EFIXED CONSTRUCTIONS E03Water supply, sewage E03FSEWERS CESSPOOLS

E03F5/00Sewerage structures

E03F5/02Manhole shafts or other inspection chambers snow-filling openings accessories E03F5/021Connection of sewer pipes to manhole shaft E03F5/022Partitioned to allow more than one medium to flow through E03F5/024made of plastic material E03F5/025provided with a liner E03F5/027The bottom made of prefabricated segments E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps E03F5/0401Gullies for use in roads or pavements E03F5/0402provided with flushing means for cleaning or emptying E03F5/0403with a sediment trap E03F5/0404with a permanent or temporary filtering device; Filtering devices specially adapted therefor E03F5/0405with an odour seal E03F5/0406the odour seal being easily accessible for cleaning E03F5/0407Floor drains for indoor use E03F5/0408specially adapted for showers E03F5/0409Devices for preventing seepage around the floor drain E03F5/041Accessories therefor E03F5/0411Devices for temporarily blocking inflow into a gully E03F5/042Arrangements of means against overflow of water, backing-up from the drain E03F5/046adapted to be used with kerbs E03F5/06Gully gratings E03F5/08Ventilation of sewers E03F5/10Collecting-tanks Equalising-tanks for regulating the run-off Laying-up basins E03F5/101Dedicated additional structures, interposed or parallel to the sewer system E03F5/102using already existing parts of the sewer system for runoff-regulation E03F5/103Naturals or landscape retention bodies E03F5/105Accessories E03F5/106Passive flow control devices E03F5/107Active flow control devices E03F5/108Cleaning devices providing a flushing surge E03F5/12Emergency outlets E03F5/125providing screening of overflowing water E03F5/14Devices for separating liquid or solid substances from sewage E03F5/16Devices for separating oil, water or grease from sewage in drains leading to the main sewer E03F5/18Tanks for disinfecting, neutralising, or cooling sewage E03F5/20Siphon pipes or inverted siphons E03F5/22Adaptations of pumping plants for lifting sewage E03F5/24Installations for neutralising explosions in sewers E03F5/26Installations for stirring-up sewage