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PCE
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DIFF Subgroup
F04F 1/06

the fluid medium acting on the surface of the liquid to be pumped (F04F1/02 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the fluid medium acting on the surface of the liquid to be pumped

CPC: the fluid medium acting on the surface of the liquid to be pumped (F04F1/02 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped > the fluid medium acting on the surface of the liquid to be pumped

CPC:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (using only negative pressure F04F3/00; jet pumps F04F5/00; siphons F04F10/00) > the fluid medium acting on the surface of the liquid to be pumped (F04F1/02 takes precedence)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F04F 1/08 specially adapted for raising liquids from great depths, e.g. in wells IPC+CPC Available in IPC and CPC
  • F04F 1/14 adapted to pump specific liquids, e.g. corrosive or hot liquids IPC+CPC Available in IPC and CPC
  • F04F 1/16 characterised by the fluid medium being suddenly pressurised, e.g. by explosion IPC+CPC Available in IPC and CPC