having stationary cylinders

Introduced: January 1995

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

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

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 1995.

Child Classifications

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F04B 27/1009 +2 CPC CPC only CPC only
F04B 27/1036 +4 CPC CPC only CPC only
F04B 27/12 having plural sets of cylinders or pistons since 1995 IPC+CPC Available in IPC and CPC