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PCE
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DIFF Subgroup
F04C 28/20

by changing the form of the inner or outer contour of the working chamber

Introduced: January 2006

Full Title

Full titles differ between systems:

IPC:

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids > characterised by varying the volume of the working chamber > by changing the form of the inner or outer contour of the working chamber

CPC:

Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids > characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C28/10) > by changing the form of the inner or outer contour of the working chamber

No child classifications to compare. This is a leaf node in both IPC and CPC.