having cylinders in star- or fan-arrangement

Introduced: September 1968

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

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

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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F04B 1/0404 Details or component parts since 2020 IPC+CPC Available in IPC and CPC
F04B 1/047 with actuating or actuated elements at the outer ends of the cylinders since 1995 IPC+CPC Available in IPC and CPC
F04B 1/053 with actuating or actuated elements at the inner ends of the cylinders since 1995 IPC+CPC Available in IPC and CPC
F04B 1/06 Control IPC+CPC Available in IPC and CPC
F04B 1/10 the cylinders being movable, e.g. rotary IPC+CPC Available in IPC and CPC