DIFF Subgroup
F04B 1/0404 Details or component parts
Introduced: January 2020
Full Title
Full titles differ between systems:
IPC:
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders > having cylinders in star- or fan-arrangement > Details or component parts
CPC:
Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (machines or pumps with pistons coacting within one cylinder F04B3/00) > having cylinders in star- or fan-arrangement > Details or component parts
IPC and CPC are identically structured here. All 9 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2020.
Child Classifications
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- F04B 1/0426 Arrangements for pressing the pistons against the actuated cam; Arrangements for connecting the pistons to the actuated cam since 2020 IPC+CPC Available in IPC and CPC
- F04B 1/0435 Arrangements for disconnecting the pistons from the actuated cam since 2020 IPC+CPC Available in IPC and CPC
- F04B 1/0443 Draining of the housing; Arrangements for handling leaked fluids since 2020 IPC+CPC Available in IPC and CPC
- F04B 1/0448 Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 ) since 2020 IPC+CPC Available in IPC and CPC
- F04B 1/0452 Distribution members, e.g. valves (machines or pumps with cam-actuated distribution members at the outer ends of the cylinders F04B1/0472; machines or pumps with cam-actuated distribution members at the inner ends of the cylinders F04B1/0531; the piston-driving cams being provided with inlets and outlets F04B1/0535) since 2020 IPC+CPC Available in IPC and CPC