Bottle with non-refilling liquid dispenser

Claim 1

A PLUG MOUNTED ASSEMBLY FOR MOUNTING IN THE NECK OF A BOTTLE HAVING A MEASURING CHAMBER FORMED IN THE NECK THEREOF AND WITH A VALVE SEAT FORMED BY A REDUCTION IN DIAMETER OF THE NECK OPENING AT THE INNER END OF SAID CHAMBER, SAID ASSEMBLY COMPRISING A CLOSURE PLUG OF A SIZE AND SHAPE TO FIT IN SEALING, RETAINED RELATION INTO THE OUTER END OF SUCH CHAMBER, A POURING TUBE SLIDABLY MOUNTED FOR LIMITED AXIAL MOVEMENT IN SAID PLUG, A VALVE MOUNTED ON THE INNER END OF SAID TUBE FOR SEATING IN SEALING RELATION ON SUCH VALVE SEAT WITH THE POURING TUBE IN MAXIMUM RETRACTED CONDITION, A PORT IN THE POURING TUBE POSITIONED TO BE INWARDLY CLEAR OF THE PLUG WHEN THE POURING TUBE IS IN MAXIMUM RETRACTED CONDITION AND TO LIE WITHIN THE PLUG WHEN THE POURING TUBE IS EXTENDED, A VALVE ELEMENT SLIDABLY MOVABLE BY GRAVITY ALONG THE POURING TUBE FROM A POSITION OVERLYING AND SEALING SAID PORT WITH SUCH BOTTLE IN UPRIGHT POSITION AND THE POURING TUBE EITHER RETRACTED OR EXTENDED, TO THEREBY PREVENT REFILLING THE BOTTLE, TO A POSITION OUTWARDLY CLEAR OF THE PORT WITH THE BOTTLE INVERTED AND THE POURING TUBE RETRACTED, AND SPRING MEANS BIASING THE POURING TUBE AXIALLY OUTWARDLY TO THEREBY DRAW THE POURING TUBE AXIALLY OUTWARDLY TO A POSITION WHERE THE PORT IS WITHIN THE PLUG AND IS SEALED BY THE VALVE ELEMENT.