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PCE
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DIFF Subgroup
B24B 31/02

involving rotary barrels

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is loose; Accessories therefor > involving rotary barrels

CPC:

Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor (abrasive blasting machines B24C3/26) > involving rotary barrels

Of 8 combined children, 5 exist in both systems.

3 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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  • B24B 31/0206 CPC only CPC only
  • B24B 31/0224 CPC only CPC only
  • B24B 31/023 with tiltable axis since 1985 IPC+CPC Available in IPC and CPC
  • B24B 31/027 with additional oscillating movement since 1985 IPC+CPC Available in IPC and CPC
  • B24B 31/03 the workpieces being continuously-travelling since 1985 IPC+CPC Available in IPC and CPC
  • B24B 31/033 having several rotating or tumbling drums with parallel axes since 1985 IPC+CPC Available in IPC and CPC
  • B24B 31/037 having several rotating or tumbling drums with non-parallel axes since 1985 IPC+CPC Available in IPC and CPC