B01D 33/06 with rotary cylindrical filtering surfaces, e.g. hollow drums (B01D33/044 takes precedence )
Introduced: September 1968
Title
Titles differ between systems:
IPC: with rotary cylindrical filtering surfaces, e.g. hollow drums
CPC: with rotary cylindrical filtering surfaces, e.g. hollow drums (B01D33/044 takes precedence )
Full Title
Full titles differ between systems:
Filters with filtering elements which move during the filtering operation > with rotary cylindrical filtering surfaces, e.g. hollow drums
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) > with rotary cylindrical filtering surfaces, e.g. hollow drums (B01D33/044 takes precedence )
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
Navigate with arrow keys, Enter to open
- B01D 33/067 Construction of the filtering drums, e.g. mounting or sealing arrangements since 1990 IPC+CPC Available in IPC and CPC