Liquid dispensing containers with cutter for preventing refilling
AssigneeSinanan Enterprises Limited
InventorFrancis Alfred Delaney
Life of this patent
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Abstract
A bottle or like container of relatively hard material such as glass is provided with a readily destructible neck extension portion of relatively soft plastics material. A dispensing optic for screwing into the neck extension has a cutter or cutters arranged to be projected from their retracted state, by the first operation of the optic after insertion into the neck extension, into cutting engagement with the wall of such extension. Rotation of the optic with a view of removing it from the bottle automatically causes the cutter or cutters to sever the neck extension to render the bottle unsuitable further with a dispensing optic and thus prevents re-filling of the bottle with an inferior product and the dispensing of such product through a dispensing optic.
Claims8
A bottle like container having a main body part and a neck part integral with said body part made of glass or like hard and rigid material and an extension neck piece of a softer plastics material fixedly secured in liquid-tight manner at one end to said neck part of bottle or container, said extension piece being externally screw-threaded at its other end to co-operate with a closure cap and having an inwardly directed shoulder formation between its ends and spaced from the outer end of the neck portion of the bottle, wherein said extension piece is internally screw-threaded at the end thereof remote from said bottle neck part and beyond said shoulder formation, having engaged in said internally screw-threaded portion of said extension piece a device operable to cut through the material of said shoulder formation upon rotation thereof relative to said extension piece whereby to sever said internally screw-threaded portion from the remainder of the extension piece upon rotation of said device in operated state, wherein said device includes at least one cutter member pivotally movable between a first position in which said cutter member is retracted into the body of the device and inoperative and a second position in which said cutter member projects from the body of the device for cutting engagement with said shoulder formation.
Dependencies are inferred from the claim text.