Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or dispositions of combustion apparatus

Introduced: September 1968

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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F22B 31/0007 +5 CPC CPC only CPC only
F22B 31/02 Installation of water-tube boilers in chimneys, e.g. in converter chimneys IPC+CPC Available in IPC and CPC
F22B 31/04 Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively +1 CPC IPC+CPC Available in IPC and CPC
F22B 31/08 Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion IPC+CPC Available in IPC and CPC