Patent ID: 8708203
Filing Date: 2014-04-29
Classification: B65D

Abstract:
1. A screw-on throat plug assembly for use with a liquid container, having upper and lower ends, and a hollow throat extending upwardly at the upper end thereof which has an interior surface and a threaded outer surface, comprising: a throat plug assembly; said throat plug assembly having upper and lower ends; said throat plug assembly including a screw-on cap at said upper end thereof having a vertically disposed outer wall having a threaded inner surface and an outer surface, a top wall extending horizontally inwardly from said upper end of said vertically disposed outer wall, a vertically disposed inner wall extending downwardly from said top wall in a spaced-apart relationship with respect to said outer wall; said threaded inner surface of said outer wall of said throat plug assembly being threadably secured to the threaded outer surface of the hollow throat of the liquid container; said throat plug assembly, except for said outer wall and said top wall of said screw-on cap, being completely positioned within the hollow throat of the liquid container; said throat plug assembly including a vertically disposed hollow valve body which has upper and lower ends; said lower end of said valve body having a hollow dip tube support extending downwardly therefrom; a dip tube in communication with said dip tube support which is in communication with the liquid in the container; said upper end of said hollow valve body being closed; said hollow valve body having at least one opening formed therein below said upper end thereof; a mechanical valve movably embracing at least a portion of said valve body; said mechanical valve being movable between upper and lower positions with respect to said valve body; said mechanical valve, when in said upper position, closing the opening formed in said hollow valve body below the upper end thereof; said mechanical valve, when in said lower position, being positioned below the opening formed in said valve body; a spring means in said throat plug assembly which yieldably maintains said mechanical valve in said upper position; and a shipping cover means threadably secured to said throat plug assembly above said upper end of said valve body which does not engage said mechanical valve.