Dispensing – With lock or fastening seal – Inhibiting operation of flow controller or closure
Patent
1997-09-24
1998-11-24
Derakshani, Philippe
Dispensing
With lock or fastening seal
Inhibiting operation of flow controller or closure
222520, B67D 533
Patent
active
058396110
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF INVENTION
The present invention relates to a dispenser for drawing off a fluid product held in a container.
Such a dispenser is known from the document WO 80/02 546. This dispenser or tab, intended more particularly for containers of the "bag-in-box" type (combining a flexible internal container in the form of a bag or bladder and a rigid external container), comprises a fixed piece forming the tap body, comprising a part for attachment to the container which is extended toward the outside of the container by a pouring part of cylindrical general shape, open at its two axial ends and pierced by a lateral fluid outlet orifice. This dispenser furthermore comprises a movable piece which tightly in the pouring part of the fixed piece open at its internal axial end, closed at its external axial end and pierced by a lateral fluid outlet orifice, and a top part enabling the movable piece to be gripped and operated from the outside. Moreover, the two pieces comprise means designed to define a first axial position of the movable piece with respect to the fixed piece, in which position the lateral orifices of the two pieces are axially offset so as not to be able to be brought into coincidence, and therefore into communication, whatever the angular position of the movable piece with respect to the fixed piece, and means designed to define a second axial position of the movable piece with respect to the fixed piece, in which position the lateral orifices of the two pieces can be brought into coincidence and therefore into communication, by rotating the movable piece with respect to the fixed piece.
A first drawback of this known dispenser, in which the said first axial position is that in which the movable piece has been extracted from the fixed piece and the said second axial position is that in which the movable piece has been pushed into the fixed piece, consists in the fact that nothing is provided to keep the movable piece with certainty in the first axial position until the movable piece has been intentionally operated for the purpose of dispensing fluid for the first time. Accidental or inadvertent dispensing of fluid cannot therefore be excluded with certainty. Moreover, given the structure of this known dispenser, operating the head part of the movable piece, by rotation, for the purpose of dispensing fluid, is not easy since the head part, in the second axial position, is difficult to access for the purpose of rotating it. In addition, no provision is made, and it is not possible, in this known dispenser, to bring the movable piece back from the second axial position to the first axial position, i.e. to the position in which rotating the movable piece does not result in fluid being dispensed. Finally, this known dispenser does not have so-called tamperproofing means giving the user a guarantee that the container, and it contents, is in perfect condition when it is purchased.
SUMMARY OF INVENTION
The object of the present invention is to provide a dispenser for drawing off a fluid product held in a container, which dispenser remedies the drawbacks described above of the known dispensers.
The dispenser, which is the subject of the invention, for drawing off a fluid product held in a container includes a fixed piece comprising a part for attachment to the container, which part is extended toward the outside of the container by a pouring part of cylindrical general shape, open at its two axial ends and pierced by a lateral fluid outlet orifice. This dispenser furthermore includes a movable piece comprising a closure part of cylindrical general shape fitted tightly in the pouring part of the fixed piece open at its internal axial end, closed at its external axial end and pierced by a lateral fluid outlet orifice, and a top part enabling the movable piece to be gripped and operated from the outside. The movable piece is mounted so as to be able to move in axial translation and in rotation in the fixed piece. The fixed piece and the movable piece include means designed to define a first axial pos
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Guglielmini Bernard
Obadia Jacques
Derakshani Philippe
Rical S.A.
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