Rotary-piston pumps with non-parallel axes of movement of co-operating members

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Rotary-piston pumps specially adapted for elastic fluids > Rotary-piston pumps with non-parallel axes of movement of co-operating members

CPC:

Rotary-piston pumps specially adapted for elastic fluids (with fluid ring or the like F04C19/00; rotary-piston pumps in which the working-fluid is exclusively displaced by one or more reciprocating pistons F04B) > Rotary-piston pumps with non-parallel axes of movement of co-operating members

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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F04C 18/50 the axes being arranged at an angle of 90 degrees since 1990 IPC+CPC Available in IPC and CPC
F04C 18/54 the axes being arranged otherwise than at an angle of 90 degrees since 1990 IPC+CPC Available in IPC and CPC