DIFF Subgroup
B01D 25/32 Removal of the filter cakes
Introduced: September 1968
Title
Titles differ between systems:
IPC: Removal of filter cakes
CPC: Removal of the filter cakes
Full Title
Full titles differ between systems:
IPC:
Filters formed by clamping together several filtering elements or parts of such elements > Removal of filter cakes
CPC:
Filters formed by clamping together several filtering elements or parts of such elements (disc filters B01D29/39) > Removal of the filter cakes
Of 4 combined children, 2 exist in both systems.
2 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B01D 25/38 by moving parts, e.g. scrapers, contacting stationary filter elements +2 CPC IPC+CPC Available in IPC and CPC