Sewerage structures

Child Classifications

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• E03F 5/02 Manhole shafts or other inspection chambers (in general E02D29/12); Snow-filling openings; accessories (covers or frames for manholes or the like E02D29/14)
• E03F 5/04 Gullies with or without odour seals or sediment traps
• E03F 5/08 Ventilation of sewers
• E03F 5/10 Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
• E03F 5/12 Emergency outlets
• E03F 5/14 Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates (for use in sewage purification plants or both in sewage purification plants or in sewer systems B01D, C02F )
• E03F 5/18 Tanks for disinfecting, neutralising, or cooling sewage (arrangements in tanks as to the biological or chemical aspect C02F)
• E03F 5/20 Siphon pipes or inverted siphons (for connections of baths, basins, or the like E03C1/12 )
• E03F 5/22 Adaptations of pumping plants for lifting sewage (wheeled apparatus for emptying sewers or cesspools E03F7/10; pumps, pumping plants, per se F04)
• E03F 5/24 Installations for neutralising explosions in sewers
• E03F 5/26 Installations for stirring-up sewage