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PCE
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DIFF Subgroup
B01D 29/01

with flat filtering elements (B01D29/39 takes precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: with flat filtering elements

CPC: with flat filtering elements (B01D29/39 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; Filtering elements therefor > with flat filtering elements

CPC:

Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor > with flat filtering elements (B01D29/39 takes precedence)

CPC subdivides this area 2x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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  • B01D 29/012 CPC only CPC only
  • B01D 29/014 CPC only CPC only
  • B01D 29/016 CPC only CPC only
  • B01D 29/018 CPC only CPC only
  • B01D 29/075 located in a closed housing and comprising scrapers or agitators on the cake side of the filtering elements, e.g. Nutsche- or Rosenmund-type filters for performing multiple step operations such as chemical reactions, filtering and cake treatment since 1990 IPC+CPC Available in IPC and CPC