Patent ID: 6578595
Filing Date: 2003-06-17
Classification: B65B,B67C,Y10T

Abstract:
A product fill system comprising:a source of product supplied along in a circuit; a filler valve at a fill end of the circuit such that product flows in a path from the source through the filler valve during a fill operation; a shock tube in communication with the circuit, but off the path; and a mode valve connected to the circuit and wherein the shock tube is connected to the path via the mode valve; and wherein the mode valve has at least two modes: a fill mode in which any overpressure caused by shut off of the filler valve will travel through the mode valve into the shock tube; and a clean mode in which passage of cleaning material from upstream of the mode valve on the path is directed from the mode valve through a first end of the shock tube and out a second end of the shock tube towards the filler valve by way of the mode valve.