Patent ID: 8671974

Claim:
A variable flow resistant actuating system, comprising: a housing defining a full bore radial dimension; a tubular positionable within the housing having a smallest radial dimension no smaller than the full bore radial dimension; at least one member in operable communication with the tubular positioned downstream of the housing, having a radially movable portion movable between a first position and a second position, the radially movable portion having a smallest radial dimension no less than the full bore radial dimension in the first position and having a smallest radial dimension smaller than the full bore radial dimension in the second position, the radially movable portion comprising: at least two links being pivotally attached to one another at a pivot, the pivot being positioned at at least the full bore radial dimension when the radially movable member is in the first position and the pivot being positioned at a dimension smaller than the full bore radial dimension when the radially movable member is in the second position.