Patent ID: 8875726

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 which has interior and exterior surfaces; said exterior surface of said hollow throat having threads therein; a gravity flow valve assembly, having upper and lower ends, positioned in said throat of said container; said gravity flow valve assembly including a hollow cylindrical plug member having an open upper end, an open lower end, and a cylindrical wall portion extending therebetween; said open lower end of said plug member defining an annular valve seat; a valve, having upper and lower ends, positioned within said plug member; said valve being movable between upper and lower positions with respect to said plug member; said lower end of said valve being sealably positioned in said valve seat to close said valve seat when said valve is in said lower position; said lower end of valve having a central opening, with upper and lower ends, formed therein; a check valve having a normally closed upper end and an open lower end; said lower end of said check valve being mounted on said valve for movement therewith; said open lower end of said check valve being in communication with said central opening of said valve; a spring having upper and lower ends positioned in said plug member; said lower end of said spring being in engagement with said valve; said upper end of said spring being in operative engagement with said plug member to yieldably urge said valve into its seating engagement with said valve seat to close the same; a rinse adapter assembly including an upstanding, hollow tubular member having open upper and lower ends; said upstanding, hollow tubular member including a rinse tube support at its upper end; an elongated, hollow rinse tube having upper and lower ends; said lower end of said rinse tube being supported by said tubular member so that said rinse tube extends upwardly therefrom; said lower end of said rinse tube being in selective fluid communication with a source of rinsing fluid under pressure; said rinse tube having a spray nozzle associated therewith; an internally threaded connector at said upper end of said tubular member to enable said tubular support member to be attached to the throat of said container; said rinse tube assembly causing said valve of said gravity flow valve assembly to move upwardly out of seating engagement with said valve seat when said tubular support member is attached to said throat of said container; said rinse tube extending upwardly through said central opening in said valve, through said lower end of check valve and through the normally closed upper end of said check valve, through the upper end of said plug member and into the interior of said container when said tubular support member is attached to the throat of said container.