Patent ID: 9188988
Filing Date: 2015-11-17
Classification: B67D,G01F,G05D,Y10T

Abstract:
1. A flow control device comprising: a flow measuring device configured to generate a flow feedback signal indicative of a volume of content flowing within a line of a dispensing system; a feedback controller system configured to compare a desired flow volume to the flow feedback signal to generate a flow control signal, wherein the feedback controller system includes a feed forward controller for establishing an initial value for the flow control signal; and a variable line impedance positioned within the line of the dispensing system and configured to regulate the volume of content flowing within the line of the dispensing system based upon the flow control signal wherein the variable line impedance comprising: a first rigid member having a first surface; a second rigid member having a second surface; and a variable cross-section fluid pathway defined by, at least in part, the first surface and the second surface, wherein the first surface being movable relative to the second surface to increase and decrease the variable cross-section fluid pathway.