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IPC Subgroup
F04C 3/04

of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

Introduced: January 1990

Last revised: January 2006

Full Title

Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type > the axes being arranged at an angle of 90 degrees > of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
Subclass:
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS