with rotary cylinder blocks

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 > the cylinders being movable, e.g. rotary > with actuating or actuated elements at the inner ends of the cylinders > with rotary cylinder blocks

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 > the cylinders being movable, e.g. rotary > with actuating or actuated elements at the inner ends of the cylinders > with rotary cylinder blocks

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

IPC defines codes here since 2020.

Child Classifications

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F04B 1/1136 with a rotary cylinder with a single piston reciprocating within the cylinder since 2020 IPC+CPC Available in IPC and CPC