Patent ID: 6945433

Claim:
In combination: an inverted liquid container having upper and lower ends; said lower end of said container having a hollow throat extending downwardly therefrom; an adapter secured to said throat of said container; said adapter having a central opening which is in fluid communication with the interior of said throat; said adapter having a first portion thereof which is positioned outwardly of said throat and said central opening; said first portion of said adapter having a vent opening formed therein which is in communication with ambient air; a valve means normally closing said vent opening; a hollow cup having upper and lower ends; said upper end of said cup being secured to said adapter; said cup having a valve opening formed therein above its lower end; said cup having a central opening formed in its said lower end below said valve opening; a lift valve, having upper and lower ends, vertically movably mounted on said lower end of said cup which is movable between upper and lower positions; said lift valve having a valve stem which is slidably received by said central opening in said lower end of said cup; said valve stem having a closed upper end and an open lower end; said valve stem having at least one liquid passageway formed therein below its said closed upper end; a valve on said valve stem of said lift valve which closes said valve opening when said lift valve is in its said lower position; said liquid passageway being positioned below said valve opening when said lift valve is in its said lower position; said liquid passageway being positioned above said valve opening when said lift valve is in its said upper position; a vent actuator operatively secured to said lift valve above said valve opening for movement therewith; said vent actuator being movable between upper and lower positions; said valve means closing said vent opening when said vent actuator is in its said lower position; said valve means causing said vent opening to be open when said vent actuator is in its said upper position.