165149 ⎘
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 rigid movable walls comprising reciprocating pistons, e.g. reciprocating in a rotating body
Sub-classes:Device to measure the flow rate of a fluid, such as concrete, in a pumping plant connected to a drilling machine
#2Dispensing meter for fluid dispensing
#3Dispensing meter and nozzle for fluid dispensing
#4Dispensing meter for fluid dispensing
#5Methods for measuring leakage rate and inferring production rate of an oilfield downhole pump
#6Fluid metering device using free-moving piston
#7Metering device