Patent ID: 6290108
Filing Date: 2001-09-18
Classification: B65D

Abstract:
A dispensing system for dispensing a product from a container having an opening, said system comprising:a body for projecting outwardly from said container and having a spout that terminates in a distal end and that defines (1) a discharge passage for communicating with said container opening, (2) at least one discharge aperture opening externally from said spout discharge passage and having a fixed geometry at a stationary location relative to said container, (3) a distal seal surface located distally of said discharge aperture relative to said container, and (4) a proximal seal surface located on the exterior of said spout proximally of said discharge aperture; anda nozzle assembly which is mounted on said spout over said spout distal end for movement between a retracted, closed position and an extended, open position, and which includes (1) a nozzle, and (2) a valve carried by said nozzle, said nozzle having (a) a dispensing passage for communicating with said spout discharge aperture at least when said nozzle assembly is moved away from said retracted, closed position, (b) a proximal seal surface for sealingly engaging said spout proximal seal surface, and (c) a distal seal surface located outwardly of said nozzle proximal seal surface for sealingly engaging said spout distal seal surface when said nozzle assembly is in said retracted, closed position to prevent flow through said nozzle dispensing passage to said valve, said valve being a resiliently flexible valve sealingly disposed across said nozzle dispensing passage at a location distally of said spout distal seal surface when said nozzle assembly is in said retracted, closed position as well as when said nozzle assembly is in said extended, open position, and said valve having an initially closed dispensing orifice which opens in response to a differential between the pressure acting against the side of the closed valve exposed to ambient atmosphere and the pressure acting against the side of the closed valve exposed to the container opening.