Piston-stopper dispenser
OwnerJean-Louis Bougamontinventor
Life of this patent
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Abstract
A dispenser for a liquid cosmetic product, includes a reservoir, an internal piston, and an applicator end piece provided with and end valve. The dispenser is characterised in that the reservoir is defined inside the end piece, at a first end, by the valve, and, at the other end, by the piston, the piston forming a stopper screwed onto a threaded axial rod fixed to a base which is rotatably connected to the end piece.
Claims11
A dispenser for liquid cosmetic products comprising a reservoir, an internal piston and an applicator nozzle provided with an end valve, characterised in that said reservoir is delimited inside the nozzle, at a first end, by said valve and, at the other end, by said piston forming a plug, which is screwed onto a threaded axial rod formed integral with a base rotatingly connected to said nozzle.
A method for packaging a liquid cosmetic product in a dispenser of the type that comprises an applicator nozzle, enclosing an internal piston and a reservoir blocked at a first end by a valve, characterised in that the reservoir is filled by its other end, with the dispenser in its inverted position, and then the piston is inserted in the form of a plug, expelling the air contained in the reservoir in order to close off this other end in a watertight manner, and said piston is locked in this closed position.
Dependencies are inferred from the claim text.