Details, accessories or equipment specially adapted for rotary-drum furnaces

Introduced: September 1968

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Rotary-drum furnaces, i.e. horizontal or slightly inclined > Details, accessories or equipment specially adapted for rotary-drum furnaces

Of 15 combined children, 10 exist in both systems.

5 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

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F27B 2007/2008 2nd only CPC only CPC only
F27B 2007/2091 2nd only CPC only CPC only
F27B 7/2016 +3 CPC CPC only CPC only
F27B 7/2075 CPC only CPC only
F27B 7/2083 CPC only CPC only
F27B 7/22 Rotary drums; Supports therefor +4 CPC IPC+CPC Available in IPC and CPC
F27B 7/26 Drives +2 CPC IPC+CPC Available in IPC and CPC
F27B 7/28 Arrangements of linings IPC+CPC Available in IPC and CPC
F27B 7/30 Arrangements of partitions IPC+CPC Available in IPC and CPC
F27B 7/32 Arrangement of devices for charging +2 CPC IPC+CPC Available in IPC and CPC
F27B 7/33 Arrangement of devices for discharging since 1985 IPC+CPC Available in IPC and CPC
F27B 7/34 Arrangements of heating devices IPC+CPC Available in IPC and CPC
F27B 7/36 Arrangements of air or gas supply devices +1 CPC IPC+CPC Available in IPC and CPC
F27B 7/38 Arrangements of cooling devices +1 CPC IPC+CPC Available in IPC and CPC
F27B 7/42 Arrangement of controlling, monitoring, alarm or like devices since 1985 IPC+CPC Available in IPC and CPC

Class F27,2013–2023, worldwide · Source: EPO PATSTAT

Class F27,2013–2023, worldwide · Source: EPO PATSTAT