having stationary cylinders

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Multi-cylinder machines or pumps characterised by number or arrangement of cylinders > having cylinder axes coaxial with, or parallel or inclined to, main shaft axis > having stationary cylinders

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 cylinder axes coaxial with, or parallel or inclined to, main shaft axis > having stationary cylinders

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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F04B 1/141 Details or component parts since 2020 IPC+CPC Available in IPC and CPC
F04B 1/16 having two or more sets of cylinders or pistons IPC+CPC Available in IPC and CPC
F04B 1/18 having self-acting distribution members, i.e. actuated by working fluid IPC+CPC Available in IPC and CPC