Details thereof

Introduced: January 1990

Full Title

Feeding or distributing other fuel to combustion apparatus > Liquid fuel > Details thereof

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

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F23K 5/142 +1 CPC CPC only CPC only
F23K 5/147 CPC only CPC only
F23K 5/16 Safety devices (cleaning or purging devices, e.g. filters F23K5/18) since 1990 IPC+CPC Available in IPC and CPC
F23K 5/18 Cleaning or purging devices, e.g. filters since 1990 IPC+CPC Available in IPC and CPC
F23K 5/20 Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44) since 1990 IPC+CPC Available in IPC and CPC
F23K 5/22 Vaporising devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44) since 1990 IPC+CPC Available in IPC and CPC

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

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