DIFF Main Group
F28D 11/00 Heat-exchange apparatus employing moving conduits
Introduced: September 1968
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F28D 11/02 the movement being rotary, e.g. performed by a drum or roller (F28D11/08 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
- F28D 11/06 the movement being reciprocating or oscillating (F28D11/08 takes precedence) IPC+CPC Available in IPC and CPC
- F28D 11/08 more than one conduit assembly performing independent movements, e.g. rotary bundle of tubes in a rotary drum IPC+CPC Available in IPC and CPC