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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G01F 3/22

for gases

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow > with measuring chambers which expand or contract during measurement > having flexible movable walls, e.g. diaphragms, bellows > for gases

CPC:

Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow (measuring a proportion of the volume flow G01F5/00) > with measuring chambers which expand or contract during measurement > having flexible movable walls, e.g. diaphragms, bellows > for gases

Of 5 combined children, 0 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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