Patent ID: 6161722
Filing Date: 2000-12-19
Classification: B05C,F16K

Abstract:
A device for dispensing a liquid comprising:(a) a dispenser body having an actuator cavity, a liquid passage and a valve seat positioned within said liquid passage;(b) a valve stem mounted for movement in said liquid passage and said actuator cavity between an open position and a closed position relative to said valve seat;(c) a first magnetic element connected to said valve stem and movable therewith;(d) a barrier between said actuator cavity and said valve stem, said barrier including a tubular member within said body, said tubular member encompassing a portion of said valve stem which is contained within said actuator cavity for preventing leakage of the liquid between said actuator cavity and said liquid passage;(e) an actuator mounted for movement within said actuator cavity and magnetically coupled to said first magnetic element, whereby movement of said actuator moves said first magnetic element and correspondingly moves said valve stem between said open position and said closed position; and(f) a lower spring mechanism and an upper cap operably connected to said body, said upper cap pushing said tubular member, the lower spring mechanism operably connected to said tubular member to yieldingly resist pushing of said tubular member by said upper cap.