with measuring chambers which expand or contract during measurement

Full Title

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

Child Classifications

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• G01F 3/04 having rigid movable walls
• G01F 3/20 having flexible movable walls, e.g. diaphragms, bellows