Patent ID: 7703484

Claim:
Method for filling a container ( 12 ) with a predetermined quantity of fluid, by means of a filling device ( 10 ) comprising: a nozzle ( 14 ) for delivering a fluid flow into the container ( 12 ), and a valve ( 16 ) comprising a movable valve member ( 27 ) for controlling the fluid flow, the method comprising the step ( 300 ) of sending a position control signal for the movable valve member ( 27 ), such that said movable valve member ( 27 ) is expected to follow an expected displacement vs. time curve which adjusts the quantity of fluid delivered into the container ( 12 ) to the predetermined quantity, and the method being characterized in that it comprises the steps of: sensing ( 400 ) a point at the actual displacement vs. time curve followed by the movable valve member ( 27 ) in response to the position control signal, and comparing ( 500 ) the sensed point to the corresponding point of the expected displacement vs. time curve.