Device for closing a non-refillable bottle, and adaptors for filling and draining through such a device
AssigneeLuxembourg Patent Company S.A.
InventorLeon Kerger
Life of this patent
Estimating the term…
Abstract
The closure of the bottle is achieved with the aid of a cylindrical ring (20), the base of which is closed by a membrane (22). This ring (20) is put in place together with a filling adaptor which is screwed onto the neck of the bottle and which allows the ring (20) to be tightened after filling. A drawing-off adaptor is also designed to be screwed onto the neck of the bottle and includes a bevelled drawing-off tube intended to pierce the membrane.
Claims14
Device for closing a non-refillable bottle, characterized by a tubular coupling (12) designed to be rendered integral with the wall of the bottle and exhibiting, at its base, an internal annular shoulder (14) which defines an opening (16) for filling and draining the bottle, via a cylindrical ring (20) closed by a membrane (22), the external diameter of said ring (20) being larger than the diameter of the said opening (16), in that part of the external surface of said ring (20) has an external diameter corresponding to the internal diameter of the coupling (12), in that at least the middle part of the internal surface of the coupling (12) and the said part of the external surface of the ring (20) are equipped with sets of internal and external screw threads, respectively, and in that at least one longitudinal groove (24) passes through one of said sets of screw threads to allow fluid to flow into said bottle when said ring (20) is loosely screwed into said coupling (12).
Dependencies are inferred from the claim text.