Abstract:
A fluid dispenser assembly, characterized in that it comprises:
       a fluid dispenser ( 1, 2 ) comprising a fluid reservoir ( 1 ) and a closure member ( 2 ), the reservoir comprising at least one flexible sheet ( 11 ) provided with an opening ( 14 ) cut out in the sheet, the closure member ( 2 ) being mounted in said opening ( 14 ); and   a flexible covering ( 3 ) wrapped around the dispenser, the covering including a window ( 34 ) through which the closure member ( 2 ) can be accessed.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     This application claims the benefit under 35 U.S.C. §119(e) of pending U.S. provisional patent application Ser. No. 60/907,062, filed Mar. 19, 2007, and priority under 35 U.S.C. §119(a)-(d) of French patent application No. FR-07.52603, filed Jan. 10, 2007. 
    
    
     TECHNICAL FIELD 
     The present invention relates to a fluid dispenser assembly that is more particularly suited to dispensing pastes such as creams, gels, pomades, etc. The present invention finds an advantageous application in the fields of cosmetics, pharmacy, or even perfumery. 
     BACKGROUND OF THE INVENTION 
     In the prior art, document FR 2 822 808 is already known that describes a fluid dispenser assembly comprising a dispenser and a wrapper wrapped around the dispenser. The dispenser is in the form of a small, relatively flat pouch defining a dispenser orifice in one of its edges. The dispenser orifice is initially closed by a stopper that is removed, in particular by pulling it off. The wrapper masks the small pouch, but defines a notch where the removable stopper is positioned. To do this, the notch is defined on a lateral edge of the wrapper. 
     The drawback with that type of dispenser assembly is that the user has difficulty retrieving the fluid that is dispensed by the dispenser. After pulling off the removable stopper, the user presses on the wrapper, thereby flattening the small pouch of the dispenser. Consequently, the fluid is dispensed through the dispenser orifice situated at the bottom of the notch in the wrapper. It can be understood that it is not easy to retrieve the fluid at the bottom of a small notch. Thus, it often happens that the fluid spreads into the wrapper just beside the dispenser orifice. That prior-art dispenser assembly is thus not really adapted to dispensing pastes such as creams. It is more suited to fluids, such a perfume, that are sprayed. No fluid is retrieved directly at the outlet of the dispenser orifice. 
     BRIEF SUMMARY OF THE INVENTION 
     An object of the present invention is thus to define a fluid dispenser assembly that is more adapted to dispensing pastes or creams. It should be easy for the user to retrieve the fluid without the fluid spreading everywhere. The assembly should be easy to hold, so as to enable the user to retrieve the fluid easily. The assembly should also be attractive, and should enable information of any kind, such as a trademark, a logo, decoration, or text, to be applied easily and extensively. 
     To achieve the various objects, the present invention proposes a fluid dispenser assembly, characterized in that it comprises: a fluid dispenser comprising a fluid reservoir and a closure member, the reservoir comprising at least one flexible sheet provided with an opening cut out in the sheet, the closure member being mounted in said opening; and a flexible covering wrapped around the dispenser, the covering including a window through which the closure member can be accessed. Unlike the prior-art dispenser assembly in which the dispenser orifice is situated laterally on an edge, the dispenser orifice of the present invention is situated on the flexible sheet, i.e. away from the edges of the sheet and of the covering. The dispenser orifice is thus situated in a substantially plane surface, thereby favoring retrieval of the dispensed fluid. The opening and the window advantageously define respective peripheral edges that are plane and that are situated one on top of the other in superposed manner. The dispenser is preferably fastened in permanent manner in the covering. However, it is also possible to envisage removing the dispenser from its covering. The closure member advantageously includes permanent or releasable holding means that are suitable for receiving, in stationary manner, the peripheral edge of the window. The holding means preferably comprise an outer peripheral groove in which the edge of the window is received, advantageously by snap-fastening. Thus, it is not even necessary to bond the dispenser inside the covering. However, in some circumstances, alternative or additional adhesive bonding is performed. 
     In another aspect of the invention, the window is initially closed by a removable cover. The cover is advantageously formed by the covering and is defined by predetermined rupture zones. Before first use, the user removes the removable cover and thus accesses the closure member. Preferably, the removable cover can no longer be repositioned, such that removing the cover informs the user that the assembly is being used for the first time. The removable cover thus fulfils a first-use-guarantee function. In addition, the removable cover attractively finishes off the covering, such that a pattern can extend over the entire covering, including over the cover. 
     In a practical embodiment, the dispenser includes a front sheet and a rear sheet that are advantageously connected together as a single piece, the sheets being sealed together at their peripheries, the front sheet forming the opening that is advantageously cut out in substantially central manner in the front sheet, the closure member including a peripheral flange to which a peripheral edge of the opening is fastened, advantageously by heat-sealing. In addition, the covering may include a front face and a rear face that are advantageously connected together as a single piece, the front face forming the window that is advantageously cut out in substantially central manner in the front sheet, the dispenser being disposed between the front face and the rear face with the closure member placed at the window. Advantageously, the covering further includes a sealing flap that is advantageously connected as a single piece to the front face, the rear face being fastened to the flap so as to close the covering over the dispenser. The covering thus forms a kind of casing having a face that is pierced with a window. The window may have a wide range of shapes. It may advantageously be centered, or, in contrast, it may be disposed in offset manner. The covering may be made from a single sheet of paper, cardboard, plastics material, metal, or a mixture thereof. 
     In an advantageous embodiment of the invention, the closure member defines a fluid dispenser orifice that is advantageously disposed in a fluid-retrieval dish, and includes a repositionable closure cap that is suitable for closing the orifice and advantageously for covering the retrieval dish. Thus, each time fluid is dispensed, the user may retrieve it in the retrieval dish, then close the dispenser orifice by closing the closure cap. 
     The dispenser assembly may advantageously present a substantially-flat general configuration defining a plane, the dispenser orifice extending along an axis that is substantially perpendicular to said plane. 
     A principle of the invention is to cover, in attractive and functional manner, a dispenser having a fluid outlet that is situated in a substantially plane sheet. The orifice is not situated between two sheets, but, in contrast, is situated in a single sheet that is cut in such a manner as to form an opening that does not extend as far as the edge of the sheet. Consequently, the opening is bordered by a line of sealing, making it possible to fasten the sheet provided with the opening to another element, such as another sheet. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention is described more fully below with reference to the accompanying drawings which show two embodiments of the invention by way of non-limiting example. 
       In the figures: 
         FIG. 1  is an exploded perspective view of a fluid dispenser assembly constituting a first embodiment of the invention in the process of being assembled; 
         FIG. 2  is a view of the  FIG. 1  dispenser assembly in its assembled state; 
         FIG. 3  is a view similar to  FIG. 2  with the dispenser in the open position; 
         FIG. 4  is a view similar to  FIG. 1  for a second embodiment of the invention; 
         FIG. 5  is a view of the  FIG. 4  dispenser assembly in its assembled state, after the removable cover has been removed; 
         FIG. 6  is a view similar to  FIG. 3  for the second embodiment of the invention; 
         FIG. 7  is a larger-scale cross-section view through the dispenser assembly in  FIGS. 1 to 3  in the closed state; 
         FIG. 8  is a view similar to  FIG. 7  with the dispenser in the open position; and 
         FIG. 9  is a perspective view of the closure member used in the first embodiment of the invention, in its state on leaving the mold. 
     
    
    
     DETAILED DESCRIPTION 
     Reference is made firstly to  FIGS. 1 to 3  to describe in detail the first embodiment of a fluid dispenser assembly of the invention. The assembly comprises three component elements, namely a fluid reservoir  1 , a closure member  2 , and a covering  3 . The reservoir  1  and the closure member  2  are assembled together to constitute a fluid dispenser. 
     The reservoir  1  is made of flexible material, e.g. such as sheets constituted by a laminate of aluminum and plastics material. It is also possible to use sheets made only of plastics material, paper, metal, etc. The reservoir is in the form of a small flat pouch comprising a front sheet  11  and a rear sheet  12  that can advantageously be made as a single piece, i.e. with a common edge  112 . It is also possible to make the reservoir from two separate sheets  11  and  12 . The sheets  11  and  12  are disposed in superposed manner and are sealed at their periphery  13 . Sealing can advantageously be performed by heat-sealing. It is thus advantageous to use sheets made of plastics material or with a plastics-material coating. Sealing can be performed over the entire periphery of the sheets, including at the common edge  112 . In practice, sealing is performed on three sides, with the side formed by the common edge  112  not being sealed. In an advantageous characteristic of the invention, the front sheet  11  is formed with an opening  14  defining a peripheral edge  15 . In this embodiment, the opening  14  is formed substantially at the center of the sheet  11 . It is also possible to position the opening  14  in off-centered manner, but always away from the outer edges of the sheet  11 . In other words, the opening  14  is completely surrounded by a peripheral edge  15  formed by the sheet  11 . The opening  14  therefore lies in the plane of the sheet  11 , as does the peripheral edge  15 . 
     The closure member  2  is positioned at the opening  14  of the sheet  11 , in such a manner as to close the opening  14 . A function of the closure member  2  is to enable the fluid that is stored inside the reservoir  1  to be expelled. To do this, the closure member defines a fluid dispenser orifice  210  that puts the inside of the reservoir into communication with the outside. The closure member advantageously includes a stopper element for closing the dispenser orifice in leaktight manner. Reference is made below to  FIGS. 7 ,  8 , and  9  in order to describe in detail a non-limiting embodiment of a closure member of the invention. The closure member comprises three parts, even if they can be made as a single piece. Thus, the closure member includes a bottom  21  defining a retrieval dish  211 , the dispenser orifice  210 , and a peripheral border  212 . The retrieval dish  211  presents a configuration that is preferably concave. The dispenser orifice  210  is positioned at the center of the dish  211 . The peripheral border  212  surrounds the retrieval dish  211 . The outer peripheral edge of the dish  211  projects beyond the border  212 . The second part of the closure member is a crown  22  that is advantageously connected to the bottom  21  via a bridge of material  24 . The crown forms an annular fastener zone  222  that surrounds a projecting annular rim  224 . The rim defines an annular peripheral groove  223  that serves as holding means for holding the covering  3 , as can be seen below. The crown  22  is disposed on the border  212  in such a manner as to surround the retrieval dish  211 . This can be seen in  FIGS. 7 and 8 . However, on leaving the mold, as shown in  FIG. 9 , the crown  22  is positioned in the same plane as the bottom  21 . It is thus possible to engage the crown  22  on the bottom  21  by pivoting, deforming the bridge of material  24 . The annular peripheral fastener zone  222  extends around the groove  223 . The fastener zone  222  serves to fasten the sheet  11  of the reservoir. More precisely, as can be seen in  FIGS. 7 and 8 , the edge  15  of the opening  14  is sealed, advantageously by heat-sealing, on the fastener zone  222  of the crown  22 . Sealing is performed over the entire periphery of the crown, in such a manner as to form a leaktight contact. The third part of the closure member is a repositionable closure cap  23  that defines a closure pin  230  for being engaged, in leaktight manner, in the dispenser orifice  210  of the bottom  21 . The cap also covers the retrieval dish  211 . the cap  23  is connected to the crown by a hinge  232 . Initially, as shown in  FIG. 9 , the cap  23  extends substantially in the same plane as the crown  22 , and it is connected to said crown by a plurality of breakable bridges of material  233 . Alternatively, the outer edge of the cap is separated from the crown by arcuate slots  234 . Before first use, the breakable bridges of material  233  are intact. This informs the user that the closure member has never been opened. The bridges  233  thus perform a first-use-guarantee function. The crown  22  is fastened in permanent manner on the border  212  of the bottom  21 , e.g. by heat-sealing. It should be observed that only the sheet  11  is fastened on the closure member  2 . The rear sheet  12  has no fastening point with the closure member  2 . However, this is not excluded. 
     Naturally, instead of the particular closure member of  FIGS. 7 to 9 , it is possible to use any appropriate closure member that enables fluid to be expelled from a reservoir formed by one or two flexible sheets. The repositionable closure cap is even optional. 
     The covering  3  comprises a front face  31  and a rear face  32 , the two faces possibly being made as a single piece, being joined via a common edge  312 . The front face  31  is formed with a window  34  defining a peripheral edge  35 . In the example shown, the window  34  is situated substantially at the center of the front face  31 . In addition, the covering also comprises a sealing flap  33  that, in this embodiment, is connected to the front face  31 . The flap  33  can be formed as a single piece with the front face  31 , defining a common edge  313  that is advantageously parallel to the edge  312  connecting the front face to the rear face. The first assembly step a consists in fitting the dispenser  1  against the front face  31 , in such a manner as to place the closure member  2  in the window  34 . The edge of the window can advantageously be snap-fastened in the groove  223  of the closure member. The sheet  11  of the reservoir can also be bonded to the inside of the front face  31 . The second assembly operation consists in folding the flap  33  onto the dispenser  1 , in such a manner as to press it against the rear sheet  12 . The third operation consists in folding the rear face  32  onto the dispenser  1 , such that the rear face  32  presses against the rear sheet  12 . The rear sheet  12  can be bonded to the rear face  32 . Finally, the rear face  32  is fastened to the flap  33 , advantageously by adhesive or by heat-sealing. The dispenser  1  is thus wrapped completely in the covering  3 . This is shown in  FIG. 2 . However, it is possible to see the dispenser  1  via the open sides of the covering  3 . However, it is not excluded to form the covering  3  with lateral flaps (not shown), making it possible to close the covering  3  completely over the dispenser  1 , such that said dispenser can no longer be seen at all, except at its closure member  2 . 
     It thus suffices for the user to lift up the cap  23  by breaking the bridges of material  233  in order to uncover the dispenser orifice  210  and its retrieval dish  211 . By pressing the covering  3  in such a manner as to bring the front face towards the rear face, the reservoir  1  is deformed and the fluid that it contains is put under pressure, such that it is forced to flow through the dispenser orifice  211 . The user can thus retrieve the fluid that has accumulated in the retrieval dish  211 . After use, the user can close the cap  23 , in such a manner as to close the orifice  210 . With reference once again to  FIGS. 7 and 8 , it can be seen that the peripheral edge  35  of the window  34  extends over the crown  22  of the closure member  2 . The peripheral edge  35  is advantageously inserted in the groove  223  formed by the crown  22 . However, it is not excluded to fasten the edge  35  on the crown, e.g. by adhesive or heat-sealing. The edge  35  can be held in the groove  223  by snap-fastening. In the absence of a groove  223 , the dispenser  1  can be held inside the covering  3  by any means, e.g. by adhesive. The edge  35  can come to be housed around the rim  224  on the zone  222 . This makes it possible to center the dispenser, and more particularly its closure member relative to the window  34 . 
     The covering  3  is made of a flexible material, e.g. such as paper, cardboard, plastics material, or metal. Once wrapped around the dispenser  1 , the front face  31 , and advantageously the rear face  32 , present a certain flexibility, making it possible for them to deform in such a manner as to move towards and away from each other. 
     Reference is made below to  FIGS. 4 to 6  which show a second embodiment that constitutes a variant of the first. The dispenser  1  can be substantially or completely identical to the dispenser of the first embodiment. The covering  3  differs from the covering of the first embodiment in that the window  34  is initially closed by a cover  36  that is advantageously formed integrally with the front face  31 . The cover  36  is defined by predetermined rupture zones  37  that can be perforations or zones of weakness. To uncover the window, as shown in  FIG. 5 , it suffices for the user to pull on the removable cover  36 , so as to separate it from the sheet  31  at the predetermined rupture zones  37 . Then, the user can use the assembly as in the first embodiment. The removable cover  36  makes it possible to preserve the integrity of the front face  31 , such that it can be decorated without interruption at the window. It is possible to emboss the cover  36  in such a manner that it is in relief relative to the remainder of the front face  31 . In this way, the cover  36  can be positioned on the cap  23  and the rim  224  of the closure member, with the edge  35  of the window being received in the groove  223  or at least around the rim  224 . 
     The invention thus provides a fluid dispenser assembly that can be used like a conventional pot, with the retrieval dish  211  being held horizontally. The user holds the assembly in one hand and presses on the front face  31  so as to expel the fluid. The user can thus retrieve the fluid with the other hand. After use, the user can close the cap, guaranteeing perfect sealing. Naturally, the covering  3  makes it possible to improve the appearance of the dispenser  1 , but it also makes it easier to hold the assembly in the hand, and significantly increases the surface area are for applying information, e.g. such as decoration, a logo, a trademark, or any other legal or useful information. The dispenser assembly presents thickness that is small, of the order of a few millimeters. It is relatively flat, in such a manner as to occupy a plane. This makes it possible to insert it in magazines as a publicity sample. However, it should be observed that the dispenser orifice  210  extends perpendicularly to the plane of the assembly.