Full Title

Filters with filtering elements which move during the filtering operation (filters comprising loose filtering material moving or fluidised during filtration B01D24/28 - B01D24/36; centrifuges B04B) > Regenerating the filter material in the filter (devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration, B01D35/12) > by flushing, e.g. counter-current air-bumps > with backwash arms, shoes or nozzles