Regulating air supply or draught (conjointly with fuel supply F23N1/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Regulating air supply or draught

CPC: Regulating air supply or draught (conjointly with fuel supply F23N1/00)

Full titles differ between systems:

IPC:

Regulating air supply or draught

CPC:

Regulating air supply or draught (conjointly with fuel supply F23N1/00)

Of 7 combined children, 4 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

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F23N 3/002 CPC only CPC only
F23N 3/005 CPC only CPC only
F23N 3/007 CPC only CPC only
F23N 3/02 Regulating draught by direct pressure operation of single valves or dampers IPC+CPC Available in IPC and CPC
F23N 3/04 by operation of single valves or dampers by temperature sensitive elements +3 CPC IPC+CPC Available in IPC and CPC
F23N 3/06 by conjoint operation of two or more valves or dampers (by power-assisted systems F23N3/08) +1 CPC IPC+CPC Available in IPC and CPC
F23N 3/08 by power-assisted systems +3 CPC IPC+CPC Available in IPC and CPC

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

Class F23,2013–2023, worldwide · Source: EPO PATSTAT