F04B 41/00 Pumping installations or systems specially adapted for elastic fluids (free-piston pumps specially adapted for elastic fluids or systems incorporating such pumps F04B31/00; piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for F04B35/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Pumping installations or systems specially adapted for elastic fluids
CPC: Pumping installations or systems specially adapted for elastic fluids (free-piston pumps specially adapted for elastic fluids or systems incorporating such pumps F04B31/00; piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for F04B35/00)
Full Title
Full titles differ between systems:
Pumping installations or systems specially adapted for elastic fluids
Pumping installations or systems specially adapted for elastic fluids (free-piston pumps specially adapted for elastic fluids or systems incorporating such pumps F04B31/00; piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for F04B35/00)
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
Child Classifications
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- F04B 41/04 Conversion of internal-combustion engine cylinder units to pumps IPC+CPC Available in IPC and CPC