having cylinders in star- or fan-arrangement

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders > having cylinders in star- or fan-arrangement

CPC:

Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders (multi-stage pumps specially adapted for elastic fluids F04B25/00) > having cylinders in star- or fan-arrangement

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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F04B 27/0404 +8 CPC CPC only CPC only
F04B 27/047 with an actuating element at the outer ends of the cylinders since 1995 +2 CPC IPC+CPC Available in IPC and CPC
F04B 27/053 with an actuating element at the inner ends of the cylinders since 1995 +3 CPC IPC+CPC Available in IPC and CPC
F04B 27/06 the cylinders being movable, e.g. rotary +2 CPC IPC+CPC Available in IPC and CPC
F04B 27/067 Control since 1995 +2 CPC IPC+CPC Available in IPC and CPC