DIFF Subgroup
F01K 3/24 with heating by separately-fired heaters
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein > having heaters > with heating by separately-fired heaters
CPC:
Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein (regenerating exhaust steam F01K19/00) > having heaters (having both steam accumulator and heater F01K3/14; steam heaters per se F22) > with heating by separately-fired heaters
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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