IPC Main Group
F04B 25/00 Multi-stage pumps specially adapted for elastic fluids
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- Subclass:
- POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Scope Notes
Application references: For raising fluid from great depths
2 direct subcodes
Child Classifications
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- F04B 25/02 of stepped-piston type
- F04B 25/04 having cylinders coaxial with, or parallel or inclined to, main shaft axis