Self-cleaning fluid dispenser

摘要

A fluid dispenser generally includes a housing and a valving rod disposed in and movable within the housing, the valving rod including a central bore, at least one inlet for receiving a cleaning fluid composed of a solvent and a gas, and one or more outlet ports in fluid communication with the bore, wherein the outlet ports are capable of directing cleaning fluid radially outwards from the bore and against an interior surface of the dispenser to facilitate the removal of at least a portion of any fluid product or derivatives thereof that may be in adherence with such interior surface.