Patent ID: 8631814

Claim:
A flow control device for use in a supply line between a pressurized liquid container and a dispenser for the liquid, the flow control device comprising a chamber defined by a base section, a top section and at least one wall connected therebetween, the chamber having an inlet for receiving liquid from the container; the base section comprising a chamber outlet for supplying liquid to the dispenser; a vent valve for venting gas from the chamber; a float valve comprising a float section and a seat section and movable to and from an open position wherein the chamber outlet is open to liquid flow and a closed position wherein the chamber outlet is closed to liquid flow; and a float valve opening mechanism wherein the float section of the float valve comprises a right prism having a plurality of side edges, the side edges forming a plurality of protrusions at least some of which engage an inner surface of the wall of the chamber so as to locate the float valve substantially in line with the chamber outlet, and in which the faces of the right prism are concave.