EP0786419B1 - Dosing bottle - Google Patents

Description

The subject of the invention is a new dispensing bottle, allowing a controlled and possibly metered distribution of its content, while providing pleasant grip. In addition this bottle is provided with a system sealing which prevents in particular air degradation of the product during its storage and / or between two uses.

Usually, gels or creams, in the pharmaceutical field or cosmetic, are stored in jars, with a simple lid, and fingerprints directly from the jar. This practice has two drawbacks: microbial contamination introduced into the product that is stored, and the approximate dosage of the product.

It is known to use a dropper to dispense a liquid product in a manner measured. A dropper usually includes a reservoir having a pressure raising means, usually a pear, to one of its ends and a reduced opening at the other end. The use is as follows: air is driven from the tank by actuation of the pressure raising means, the end comprising the reduced orifice is immersed in a bottle containing the product to be dosed and the product enters the reservoir by loosening the means pressure rise. The product is then dispensed by actuation of the pressure raising means. Such dropper systems are not suitable for the distribution of creamy consistency products or gels and all viscous products in general. Indeed, products of this consistency can only go back up through the reducer, air bubbles being drawn into the tank at the same time as the product and part of the product inevitably sticks to the outside wall of the dropper.

In addition, each use of the dropper requires a prior opening of the bottle and therefore bringing the product into contact with the oxygen in the air.

We also know bottles with more or less deformable walls provided a reducing end offering a measured distribution of the product which they contain by simple pressure on their walls. These bottles, pressed to the full hand, have the disadvantage of not offering a very fine dosage of the distribution. In addition, their walls being deformable, they cannot be transported in luggage only with certain precautions, that is to say sheltered from all pressure and shock. If the addition of a tight closure system to the reducer prevents accidental leaks, there is always the risk of see the wall of the bottle give way under too much pressure. In addition, such vials tend to warp over time, especially to keep the concave shape imprinted by hand pressure. Finally, the materials deformable plastics of which these bottles are made, are not very suitable for packaging of luxury products for which materials are preferred more rigid. In addition, high-cost products are distributed in small quantities and we don't know how to make bottles with deformable walls of small size and offering a full product return.

We know, for example from documents US-3,145,879, FR-733446, FR-1248664, FR-2411140, FR-1164796, FR-771150, devices comprising a reservoir cavity filled with a product to be dispensed, provided with two ends, one comprising a pressure raising means, the other with a braking system. However, none of these documents mentions a sealing device for single or semi-permanent use applied to such a device.

Document US-4,770,305 discloses a sealing device for use single applied to the top of the neck of a bottle, this device consisting of an aluminum seal and a point intended to pierce this seal before the first use. However, this document in no way suggested the use of such a device in another application than the neck of a bottle.

Document FR-2656240 describes a semi-permanent sealing device for filling and dispensing of a product contained in a constituted tank a flexible pocket. This document neither describes nor suggests the application of such a device to another application than filling and dispensing a tank.

Also, it was with astonishment that the plaintiff discovered a new bottle of rigidity allowing easy handling, provided with a system of distribution which allows controlled distribution and possibly fine dosing of the product it contains, whatever the viscosity thereof, while ensuring good conservation of the product over time.

The subject of the invention is a dispensing bottle, comprising: a) - a reservoir containing a product and provided with at least two openings, a first opening, ending with a collar; b) - at least one means of pressurizing the tank ; c) - a means of braking and retention of the product or reducer, located in the vicinity of a second opening; d) - a means of fixing the means of pressurization on the first opening of the tank; characterized in that it further comprises a sealing device capable of passing, at least prior to first use, from a first position in which the tank is separated, in an airtight manner, from the pressurization means, a second position in which the seal between the tank and the means of pressurization is broken.

Advantageously, the transition from the first position to the second position is done irreversibly, before first use.

According to one embodiment, the sealing device is arranged so as to ability to move from first to second position on each new use.

Preferably, the first opening is formed by a one-way valve, suitable to open in the direction of the reservoir body and to prevent the product from entering up to pressurization means.

The product to be dispensed can be a paste, a cream, a gel, a liquid, loose powder, and generally any dosage form except a solid compact.

Preferably, the body of the bottle is chosen with sufficient rigidity to do not deform under normal manual pressure under conditions usual use. For this, we use a naturally rigid material, like for example glass or aluminum. We can also use thermoplastic materials such as polypropylene, polyethylene, polystyrene or copolymers of ethylene, propylene and / or styrene, these materials being used at thicknesses sufficient to give them rigidity desired. You can also make a rigid bottle using a more flexible material if this bottle is small and has angular shapes. So the product contained in the tank included in the body of the bottle can not flow under the effect of an accidental pressure exerted on the body of the bottle.

In the absence of pressurization means and braking means and retention bottles provided by the present invention, rigid bottles, whatever the reason for their rigidity, usually do not allow a good drainage of their content.

When packaging the bottle the product is introduced inside the body container. The braking and retention means, which is chosen according to the nature of the product, prevents the product from coming out of the bottle in the absence of pressure.

The bottle optionally includes a cover C _R , cooperating with the second end of the bottle where the reducer is placed.

The object of the invention relates more particularly to fluid products, such as lotions, in particular milks and shampoos, gels, creams, foams, whose distribution we want to control. In particular, this invention concerns products for cosmetic or therapeutic use, and in good standing general of products whose price is high and which we want to avoid waste. The bottles according to the invention allow controlled distribution and possibly a dosage of such products.

The sealing device ensures that the contents of the tank do not come into contact with air during the whole the duration of storage and possibly between two uses. In addition, bottles according to the invention prohibit any direct contact between the manipulator and inside the tank. Thus, the risks of microbial contamination are extremely limited.

Preferably, the assembly consisting of the pressurization means, of the first end P of the bottle and of the fixing means comprises at least a disposable or semi-permanent sealing medium.

The disposable sealing means which can be used in the present invention consist for example of a tear-off or pierceable seal which is punctured or torn during the first use by actuation of the pressurization means. For example, this cover consists of a aluminum foil or polyethylene film or any other material easily tearable, and the pressurization means is provided with a striker which pierces or tears the lid when the means are pressed pressurization. We can also have placed in the space included between the cover and the pressurization means a ball not fixed to the means pressurization which comes to press on the cover and tear it when we presses on the pressurization means. This cover can be fixed indifferently by means of pressurization, at the neck of the bottle, by means of attachment or bonding or welding means which hold parts fixed together. In addition, the cover must advantageously be made of material impermeable to air and to the components of the formula in order to prevent them from migrate out of the tank during storage; this material must also be chemically inert with respect to the formula used.

The semi-permanent sealing means may consist of a device for binding comprising two positions: an open position and a closed position, that can be operated with a simple gesture. Advantageously such a device consists of at least two integral and fixed parts, one at the neck of the bottle and the other by means of pressurization. These two parts can be placed in two different relative positions, by a simple movement of one of these parts. In one of these two positions a passage or a channel crossing the fixing means connects the pressurization means with the tank, in the other position this passage or this channel no longer exists or is closed and the closure between the pressurizing means and the reservoir is waterproof. Such sealing means, well known to those skilled in the art, operate by an opening movement closing by rotation, by vertical, horizontal, lateral movement, by rocker.

Provision may be made for the sealing device to further comprise a membrane. breathable and impermeable to liquids, which prevents the product from ascend to the pressure medium.

It can also be provided that the neck of the bottle, at the end of the first opening P has a reduced portion, so as to limit the possibility for the product to rise to the pressure medium. For example, we can provide that the pressurization means and the reservoir communicate by a channel narrow, like a capillary canal.

Preferably, the capacity of the pressurization means is less than the volume of the bottle. So we can distribute the product so controlled. Usually we choose a capacity by means of pressurization ranging from 0.1ml to 5ml. Preferably the capacity of the means pressurization ranges from 0.2% to 25% of the volume of the bottle. So we cannot not accidentally exert strong pressure on the medium pressurization which could cause a significant emptying of the bottle. The capacity the pressurization means is adjusted by the skilled person according to of the rheology, in particular of the viscosity, of the product and of the dose of use usual of this product.

Preferably, the pressurization means consists of a pear made of elastomeric material, a piston or a bellows connected to the first opening P by means of a fixing means known to those skilled in the art loom, such as by snapping or by screwing. If the means pressurization consists of a pear, it may be of any shape. Optionally, the pressurization means can be surmounted by a button to press in rigid material. Preferably, the assembly consisting of the pressurization means, the fixing means and the neck is partially encapsulated in a rigid part. This encapsulation partially protects the means of shock pressurization; it provides better sealing of the attachment of the means pressurization on the neck of the body as well as a better grip of the dispenser bottle. This encapsulation can be achieved by any means known to a person skilled in the art, for example by overmolding the rigid part around of the assembly consisting of the pressurization means, of the fixing means and cervix.

The rigid part is made of any rigid material, such as example a thermoplastic, among which mention may be made of polypropylene, polyethylene, polystyrene or copolymers of ethylene, propylene and / or styrene, these materials being used at thicknesses sufficient for their impart the desired rigidity.

Optionally, the rigid part and the elastomeric bulb can be molded in a single piece of thermoplastic material, the thickness of which varies according to of the desired rigidity. The rigid part can also consist of two separate parts which are assembled around the assembly consisting of the means pressurization, the fixing means and the neck by screwing, by snapping, by bonding or by any other means known to those skilled in the art.

Optionally, the piece of rigid material may include a cover for protect the pressurization means.

When the pressurizing means is partially encapsulated in the rigid part, the encapsulation is carried out so that the means pressurization is inside a hollow cavity in the room rigid, and the pressurizing means is flush with the surface of the part rigid or that it is substantially set back from this surface. So, when the user holds the bottle in his hand, he must reach the means pressurization with his finger and does not risk actuating it by mistake. In addition, the advantageous rigid nature of the entire bottle allows a good grip and very firm grip. When the bottle is placed in a piece of luggage, the rigid part protects the pressurization means and avoids that it is not activated by accident.

According to a variant of the invention, the bottle can be provided with two means of pressure placed symmetrically with respect to the first opening P, in to facilitate handling of the bottle. This variant allows you to exercise simultaneous pressure with the thumb on one side and with another finger, preferably the index finger, by the same hand, on the other side of the bottle and allows the user a good grip associated with a very good control of the flow.

The reducer allowing the distribution of the product is chosen according to the product to distribute. The diameter of its distribution channel is chosen according to the rheology, and in particular the viscosity of the product, so that the absence of pressure on the pressurization means, the product does not flow not spontaneously through this channel.

Preferably, the reducer comprises at the outlet of the reducer, at inside the bottle, a retaining cell, open on the tank, so that a little product is retained inside this cell, in the positions normal use of the bottle (vertical position, reducer down, position horizontal and any intermediate position). The reducer inlet and outlet are defined by the direction of flow of the product. This holding cell can by example be constituted by the walls of the reducer, if it is of a length sufficient in relation to its width depending on the viscosity of the product for ensure good retention, or by a chimney extending into the tank which extends the walls of the reducer; it can also be formed by a annular rim at the entrance to the cell.

The retaining cell keeps a small amount of product available for immediate distribution even if the bottle has been stored in a position other than reducing at the bottom. This quantity of reserve allows, in in addition, by its sufficient height, to prevent the passage of air contained in the tank, through the product, when you activate the means of pressurization. Finally, the holding cell allows better exhaustion of the content from the bottle.

The reducer and the body of the bottle may be a single piece, the reducing agent being the extension of the bottle, but they can also consist in two pieces, the reducer then being tightly screwed or clipped onto the mouth of the bottle. At the end of the reducer ensuring the distribution can be find a sealing means which closes the reduction gear in the absence of pressure and bends under the thrust of the product. The shutter may consist of a lip elastic or an elastic valve whose edges deviate under the pressure of the product. Such a valve consists of a flat or circular nozzle made of material elastomeric, one end of which is slid over the rigid end of the reducer and the other end is pierced with a more or less wide opening which remains closed in the absence of pressure. The reducer can be closed with a flat seal deformable placed at the bottom of the cover. The gear unit can also be closed with sealed by a service capsule system belonging to the cover. In in addition, the outlet end of the reducer can be provided with any means facilitating dispensing the product, such as a foam applicator, massage surface, a ball, a spatula or a brush.

According to a variant of the invention, the reduction gear can comprise several channels for the simultaneous distribution of the product. Preferably the reducer includes one to three channels.

The cover of the service capsule can be fixed on the bottle or on the reducer by any means known to a person skilled in the art such as breakdown, screwing, by means of a bayonet closure etc ...

As indicated above, the pressurization means can be fixed on the neck of the bottle which ends with the first opening P via the fixing means. This attachment is preferably sealed, so that a pressure exerted on the pressurizing means is fully retransmitted in the body of the bottle and results in a flow of the product. The fixing of the pressurization means on the neck can be ensured by the means of pressurization itself: for example, the means of pressurization can be extended by a skirt which has a profile complementary to the profile of the neck of the bottle. The fixing of the pressurization means on the neck of the bottle can also be ensured by a rigid ring overmolded or not on the pressurization means. According to a variant of the invention, the cover of the rigid part may include a hinge and be molded in one piece with the rigid part, the pressurization means being fixed on this cover by any means known to those skilled in the art. In addition, the means of pressurization can also be molded in one piece with the cover of the piece rigid.

Preferably the bottle comprises an air return means. This return air to the interior of the bottle after use can be ensured through the reducer, by example using a clean air intake capsule. It can also be provided by the pressurization means using an air return valve between the pressurization means and the outside air. Can also provide the pressurization means with a hole that the finger plugs for the distribution and which lets air pass when the finger detaches from the means pressurization. In the event that the return air is not through the reducer, the bottle is then fitted with a non-return valve, by example at the level of the collar or the fixing means, which prevents the rise of the product up to pressurization means.

The cover C _R which closes the dispensing end (outlet) of the bottle is of any shape. Preferably, this cover has a flat face which allows the storage of the bottle upside down; thus, the product descending by gravity into the mouth of the reducer, the bottle is always ready for use.

The pressurization means is placed indifferently on the top of the bottle or laterally from the bottle. When the means of pressurization is placed on the top of the bottle, it can be placed on the same axis as the reducer or on a different axis from it.

In order to better understand the object of the invention, we will describe below, by way of example, devices meeting the characteristics of this invention. Except special case the upper parts (collar and parts attached to the collar) and lower (reducer and part cooperating with the reducer) of the bottle are independent and we can combine all the solutions proposed for these two parts of the bottle in the following examples.

Figure 1 is a longitudinal sectional view of a bottle according to the invention.

FIGS. 2A and 2B are a view in longitudinal section of a bottle according to the invention comprising two pears, a service capsule, an elastic capsule and an opening system closing by rotation.

Figures 3A, 3B and 3C are perspective views, respectively, in section. longitudinal and partial longitudinal section of a bottle according to the invention provided a foam applicator and a pivot closure opening system.

Figure 4 is a perspective view of a bottle according to the invention, the means is protected by a hinged cover.

Figures 5A and 5B show a perspective view and a sectional view partial transverse of a device according to the invention, the pear of which is placed on a hinged lid.

Figures 6A and 6B show a cross-sectional and cross-sectional view enlarged of a reduction unit comprising a retaining cell. Figure 6C shows a cross-sectional view of one end of the reducer.

Figures 7A and 7B show a longitudinal and longitudinal section view enlarged device according to the invention with horizontal storage.

FIGS. 8A and 8B are views: in perspective and in section transverse, of a tip adaptable to a device according to the invention.

The device shown in Figure 1 comprises a glass container body 101 containing product 102, a pear made of elastomeric material 103, a means of fixing 104 of the pear 103 on the neck 112 of the bottle, this fixing means being ring shape, a shutter 105, a non-return valve 106, a ball of percussion 107 and a cover 109; the body of the bottle extends from one side into one reducer 110, provided with a product outlet opening R and having a profile 111 and on the other in a cylindrical neck 112, comprising means hooking 113 of the ring 104 on its outer surface and an opening P air inlet. The bulb includes an air return valve 108 in its center on its internal face and is molded over its entire periphery by the ring 104 in rigid material, provided with a cylindrical internal skirt 114 which fits into the attachment means 113 of the collar 112 and an outer skirt 115 of diameter internal substantially equal to the external diameter of the neck 112 and comprising attachment means 116 complementary to those 113 present on the collar 112 from the bottle. The shutter 105 consists of an aluminum film welded to the ring 104, at the periphery of the pear, and closing with the ring the opening P. The ball 107 is placed between the bulb and the shutter, so that when first use a pressure exerted on the pear causes by repercussion on the ball the tearing of the shutter. Hood 109 is provided with a skirt internal cylindrical 117, an external skirt 118 and a lug 119, coaxial. The outer skirt 118 has a profile which cooperates with the body of the bottle, the skirt internal 117 has a profile which cooperates with profile 111 of the reducer and the pin 119 is placed so that it enters the opening R by closing it when the cover 109 is closed on the bottle. The hood has a flat bottom 120 which allows vertical storage of the bottle, the R end down; also, from When opened, the bottle is always ready to use.

The device shown in FIG. 2A comprises a reservoir bottle 201 in glass containing product 201a, service capsule 202 on the reducer side 216, a double pear 203 on the side opposite the reducer, made of polyethylene and a rotating opening-closing system consisting of a fixed part 205 and a moving part 206. The end P of the bottle ends in a neck 207 provided with attachment means 207a, the other end R ends in another neck 208 provided with attachment means 208a. The service capsule includes a body 209 and a cover 210 connected by a hinge 211. The cover 210 comprises means fixing 212 allowing it to be closed on the body of the service capsule. This one includes an outer skirt 213, the end opposite to the cover 210 cooperates with the body 201 of the bottle and an internal skirt 214 coaxial with the skirt 213, provided attachment means 215 complementary to attachment means 208a of the neck 208. The body 209 of the service capsule comprises an opening forming the reduction gear 216, closed by an elastic lip 226, made of elastomeric material, molded around the reducer 216, visible in more detail in FIG. 2B. The reducer 216 extends the neck 208. The cover 210 of the service capsule comprises a cylindrical internal skirt 217 in which the reducer 216 is placed. When the cover 210 of the service capsule is in the closed position, as shown in the figure, the end 216a of the reducer is inserted into the skirt internal 217 of the cover and rests on the bottom of the cover, so as to ensure waterproof closure. When the service capsule is open, the elastic lip 226, can let the product pass (opening direction B) under the action of pressure exercised on this product; when this pressure ceases, the lip 226 lets pass air (opening direction A), under the effect of the vacuum in the bottle. Both pears 203 are molded in a single piece folded for mounting at the hinges 231 and fixed by clipping 218 at their two ends around the moving part 206 of the rotating open-close system. The moving part 206 is crossed by a main channel 219 in which the fixed part is located 205 and by two radial lateral channels 220. The channel 219 opens into the bottle through the opening P. Each of the channels 220 opens by one of its ends on the cavity 203a of one of the pears, the other end opening onto the transverse channel 225 of the fixed part 205 in the open position. The moving part 206 is further provided with attachment means 222 cooperating with the means attachment 207a (clipping) of the neck 207 at the opening P and being in support on a shoulder 230 of the body of the bottle. These means 207a authorize the rotation of the part 206 around this neck. The fixed part 205 is fixed to the neck 207 by attachment means 223 (clipping) complementary to those 207b of the pass 207. It is crossed by a main channel 224 which extends pass 207 from bottle and through the transverse channel 225, opening into the channel 224, at height lateral channels of the moving part 206. The moving part 206 being able to rotate around the collar 207, it can be placed in two privileged positions determined by stops not shown, placed on the neck 207: in a open position the transverse channel 225 is opposite the lateral channels 220 and a pressure exerted on the pears 203 is transmitted inside the bottle then at the outlet of the reducer 216, in the closed position, the channel transverse 225 is perpendicular to the lateral channels 220 and a pressure on the pears have no effect.

The device shown in FIGS. 3A to 3C comprises a bottle 301 reservoir containing a product 301b, an elastomeric pear 302 molded by a piece 303 with triangular polypropylene section, one piece 304 in polypropylene fixed on the neck 305 of the bottle, a cap 306 and a foam applicator 307. Vial ends on one side with a reducer 308 provided with an opening R in which is placed the applicator 307 in foam and on the other side by the neck 305 of which the end defines the outlet opening P, this neck being provided with means hooking 309 (clipping) on its outer surface; cover 306 is provided an internal skirt 310 and an external skirt 311 coaxial which cooperate respectively with the reducer and the body of the bottle; pear shape 302 round is overmolded on its periphery by the part 303; room 303 has a central ball joint 313 allowing it to pivot around the axis I-I, perpendicular to the longitudinal axis X-X of the bottle. This ball 313 is crossed by a channel 314 and cooperates with a complementary part 315 of the part 304. This additional part 315 includes an opening, which could also take the form of a channel intended to connect the cervix 305 of the bottle and the patella; room 304 is fitted with a quasi skirt rectangular 317 comprising hooking means 318 (clipping) complementary to those 309 belonging to the neck 305 of the bottle; the two pieces 303 and 304 cooperate with each other by means of the ball joint 313 so as to define two preferred relative positions corresponding to the rest of one or the other of the extreme edges 303a, 303b of the part 303 on the part 304; in one of these positions the channel 314 and the opening 316 are opposite and a pressure on the pear 302 is transmitted to the reservoir containing the product 301b and then to the reducer; in the other position, channel 314 and opening 316 do not communicate, also any pressure on the pear 302 has no effect; so we can go through a simple tilting of the part from an open bottle to a closed bottle.

The device shown in Figure 4 consists of a body with two openings ending on one side with a 402 reducer and on the other with a neck connected to an elastomeric bulb 403 by means of a fixing means, two pieces of rigid material 401 and 415 having a unique profile and a cover 404. The pear 403 is flush with the surface of the part 415. The cover 404 is provided with a sealing skirt 405 into which the end of the reducer fits 406, a fixing skirt 407 of the cover on the reducer. This 407 skirt and this reducer are provided with additional hooking means 408, 409 defining a bayonet closure; the body of the bottle is partially overmolded by the piece 401 which includes a cutout around the pear 403. The part 415 is fixed by snap in this cutout. Exhibit 401 shows a profile suitable for cooperating with the cover 404 to give a single uniform profile. The part 415 comprises a hinged lid 410 412 which, in position closed, covers the pear 403; the cover 410 has a relief 411 specific to marry the shapes of the pear.

Alternatively, one can provide that the end of the reducer is inserted in the internal skirt of the cover 405 and rests on a seal, so as to ensure watertight closure, the seal preventing the creation of a vacuum in the bottle when it is opened.

The device shown in FIGS. 5A and 5B comprises a body 502 provided with the two openings ending on one side with a reducer (not shown) and the other (P) by a neck 502a on which the rigid polyethylene piece 503 is fixed. The latter comprises a cover 504 including a pear 506 in polyethylene whose wall thickness is less than that of the cover 504. The piece 503 carries a cover 505. Piece 503 is cast in one piece and includes a body 507, the cover 504, the bulb 506 and the hinge 508 connecting the cover and the body. The body 507 of this part 503 is fixed to the neck 502a of the bottle (clipping) and includes an opening O which extends the opening P of the bottle, this opening O being closed by the seal 505 of welded aluminum on the body 507 of the part; the body 507 of the part 503 is provided with a skirt 513 cylindrical; the cover 504 comprises a hooking means 509 allowing its attachment to the body 507, which is provided with means additional attachment 512, and a skirt 510 which cooperates so waterproof with the skirt 513 of the body so that when the cover 504 is closed the bottle is ready for use; the pear 506 is placed in such a way that closed position it is opposite the opening O; the pear 506 is provided with a striker 511 so that when the cover 504 is closed and a pressure on the pear the striker 511 tears the shutter 505. This pressure causes the product to exit through the end of the bottle opposite the opening P. The whole has a symmetry of revolution.

The reducer 601 of FIGS. 6A and 6B cooperates with the body 602 of the bottle by attachment means 603 complementary to those 604 with which the body of the bottle; the reducer 601 is provided on its inner periphery with a annular bead 605 which defines a retaining cell 606. Thus even if the bottle is stored in a position other than vertical, it always remains in the cell at least one dose of product ready for distribution. The R output of reducer is closed by an elastic lip 607 made of elastomer which retains the produced in the absence of pressure in the tank. The operation of this device is identical to those described above.

According to a variant shown in FIG. 6C, a circular valve 609 in elastomer, is molded on a part 618, fixed to the reducer 603 and passed through via channel 619. This valve ensures the closure of the assembly.

The device represented by FIG. 7 differs from the previous ones by the fact that it is arranged so as to be laid flat on a support in the direction of its larger dimension. For this purpose, the neck 710 of the bottle 701, which is closed by a tear-off cover 705, includes an elbow 702. The pressurization means comprises a bellows 703 made integral with the neck 710 by fixing means 704 of the ring type. This bellows is surmounted by a rigid push button 713. In in addition to the outlet end R comprises a reducer 708 whose longitudinal axis forms an angle 90 ° <α <180 ° relative to the axis of the body of the bottle. The R end is closed by a plug 717.

According to a variant of the invention, provision may be made for a bottle according to the invention (not shown) is provided at its end for dispensing, with a nozzle as shown in Figures 8A and 8B. The tip 801 represented on this figure consists of two parts: the first, 801.1 includes means attachment (not shown) allowing its attachment to the bottle reducer (force fitting for example). Room 801.1 is connected by through a film hinge 801.3 at the second part of the end piece: 801.2. Parts 801.1 and 801.2 include hooking means 801.4, 801.5, to keep them fixed against each other, in their current position of use, as well as sealing means (shown). We could also provide that the tip 801 consists of a single piece corresponding to the two parts 801.1 and 801.2 kept in the fixed position. The end piece 801 is crossed by a channel 802 comprising three parts: the channel superior 802.1 communicates with the inside of the bottle. A bi-directional swing valve 803 separates the upper channel 802.1 from the middle channel 802.2. The canal lower 802.3 extends the 802.2 middle channel and opens outward from the bottle. The width of channel 802 is reduced when passing from the entrance to the channel 802, inside the bottle, towards the outlet of channel 802: The median channel 802.2 is wider at valve 803 and narrower at 802.3 lower channel level. The lower channel 802.3 is, on all of its length, narrower than the 802.2 middle channel. Part 801.2 has a profile concave 804, at the opening 805 of the lower channel 802.3 towards outside. This profile 804 being placed around, and substantially perpendicular to the opening 805. The bidirectional flap valve 803 is fixed to the part 801.1 by a film hinge 803.1. The width and thickness of this 803.1 hinge regulates the force required to move the valve 803. The width of the valve 803 relative to the channel 802.2 at the height of the valve (Figure 8B: cross section of the nozzle at the valve 803) also an influence on the flow rate through channel 802. This device allows improve air intake. It also prevents the formation of drops to opening 805 of the bottle. It allows a more regular distribution.

Claims (40)

1. Dispensing bottle comprising:

   a) - a reservoir (101, 201, 301, 502, 602, 701) containing a product (102, 201a, 301b) and equipped with at least two openings, a first opening (P) ending in a neck (112, 207, 305, 502a, 710);

   b) - at least one pressurizing means (103, 108, 106, 203, 302, 403, 506, 713) for pressurizing the reservoir;

   c) - a means of slowing and retaining the product or reducer (110, 216, 308, 402, 601), located near a second opening (R);

   d) - a fixing means (104, 303, 304, 503, 704) for fixing the pressurizing means (103, 302, 506, 713) onto the first opening (P) of the reservoir;

   characterized in that it further comprises a sealing device (105, 205, 206, 303, 304, 505, 705) capable of moving, at least prior to first use, from a first position in which the reservoir is separated, in an airtight manner, from the pressurizing means, to a second position in which the seal between the reservoir and the pressurizing means is broken.
2. Bottle according to Claim 1, characterized in that the move from the first position to the second position is done irreversibly prior to first use.
3. Bottle according to Claim 2, characterized in that the sealing device is formed of a film (105, 505, 705) that can be torn or punctured upon first use by operation of the pressurizing means.
4. Bottle according to Claim 1, characterized in that the sealing device (205, 206, 303, 304) is arranged in such a way as to be able to move from the first to the second position upon each fresh use.
5. Bottle according to any one of the preceding claims, characterized in that the first opening (P) is formed of a one-way valve (106) able to open towards the reservoir body and to prevent product from getting back in as far as the pressurizing means.
6. Bottle according to any one of the preceding claims, characterized in that it comprises a cap (109, 210, 306, 404, 717), this cap collaborating with a second end of the bottle where the reducer (110, 216, 308, 402, 708) is placed.
7. Bottle according to any one of the preceding claims, characterized in that the body of the bottle is rigid enough that it does not deform under the action of normal manual pressure.
8. Bottle according to any one of the preceding claims, characterized in that the body of the bottle is made of glass, thermoplastic or aluminium.
9. Bottle according to any one of the preceding claims, characterized in that the product is a lotion, a milk, a shampoo, a gel, a cream or a mousse (or foam).
10. Bottle according to any one of the preceding claims, characterized in that the capacity of the pressurizing means is smaller than the volume of the bottle.
11. Bottle according to Claim 10, characterized in that the capacity of the pressurizing means ranges from 0.2% to 25% of the volume of the bottle.
12. Bottle according to any one of the preceding claims, characterized in that the capacity of the pressurizing means ranges from 0.1 ml to 5 ml.
13. Bottle according to any one of the preceding claims, characterized in that the pressurizing means consists of a bulb made of elastomeric material (103, 203, 302, 403, 506), of a piston or of a bellows (703).
14. Bottle according to any one of the preceding claims, characterized in that the pressurizing means is connected to the first opening P by snap-fastening or screw-fastening.
15. Bottle according to any one of the preceding claims, characterized in that the pressurizing means consists of a bellows (703) surmounted by a push-button made of rigid material (713).
16. Bottle according to any one of the preceding claims, characterized in that the assembly consisting of the pressurizing means, the fixing means and the neck is partially encapsulated in a rigid piece (206, 303, 304, 401, 503, 415).
17. Bottle according to Claim 16, characterized in that the encapsulation is achieved by overmoulding (206, 303, 304, 401, 415) the rigid piece around the assembly consisting of the pressurizing means, the fixing means and the neck.
18. Bottle according to Claim 16 or 17, characterized in that the rigid piece and the elastomer bulb form a single piece (203, 503, 504).
19. Bottle according to any one of Claims 16 to 18, characterized in that the rigid piece consists of two separate pieces (401, 415), assembled around the assembly consisting of the pressurizing means, the fixing means and the neck.
20. Bottle according to any one of Claims 16 to 19, characterized in that the rigid piece is made of thermoplastic.
21. Bottle according to any one of Claims 16 to 20, characterized in that the rigid piece (415) comprises a cap (411) for protecting the pressurizing means.
22. Bottle according to any one of the preceding claims, characterized in that the pressurizing means, the fixing means and the neck are partially overmoulded by a piece made of rigid material, so that the pressurizing means (403, 506) lies inside a hollow cavity formed in the piece (415, 504) made of rigid material, and so that the pressurizing means is, at most, flush with the surface of the rigid piece.
23. Bottle according to any one of the preceding claims, characterized in that the bottle is equipped with two pressurizing means (203) placed symmetrically with respect to the first opening (P).
24. Bottle according to any one of the preceding claims, characterized in that the reducer (601, 708) comprises a retaining cell (606) open to the reservoir.
25. Bottle according to Claim 24, characterized in that the retaining cell consists of the walls of the reducer (708).
26. Bottle according to Claim 24 or 25, characterized in that the retaining cell comprises an annular rim (605) at its inlet.
27. Bottle according to any one of the preceding claims, characterized in that the reducer (110, 216, 402, 601) comprises a shut-off means (119, 226, 405, 607, 609) capable of shutting off the said end of the reducer intermittently.
28. Bottle according to Claim 27, characterized in that the shut-off means is chosen from: an elastic lip (607), an elastic valve (609), a deformable flat gasket placed at the bottom of the cap and a user lid belonging to the cap (210, 404).
29. Bottle according to any one of the preceding claims, characterized in that the reducer (308) is equipped at one end with a foam applicator (307), a massaging surface, a ball, a spreader or a brush.
30. Bottle according to any one of the preceding claims, characterized in that the reducer comprises several passages for simultaneous dispensing of the product.
31. Bottle according to any one of the preceding claims, characterized in that the pressurizing means is fixed to the neck by the pressurizing means (203) itself or via a rigid ring (104, 503) which may or may not be overmoulded onto the pressurizing means.
32. Bottle according to any one of the preceding claims, characterized in that the film (105, 505, 705) is made of a material that is impermeable to air and to the components of the product and which is chemically inert with respect to the said product.
33. Bottle according to any of Claims 16 to 32, characterized in that the rigid piece comprises a hinged cover (504), the pressurizing means being fixed onto and/or moulded with this cover.
34. Bottle according to any one of the preceding claims, characterized in that the sealing device further comprises an air-permeable membrane that is impermeable to liquids.
35. Bottle according to any one of the preceding claims, characterized in that it comprises an air intake means (108).
36. Bottle according to Claim 35, characterized in that the air intake means is chosen from: an air intake lid, a lip (226, 607) or an elastic valve (609), an air intake valve (108) mounted between the pressurizing means and the outside, and a hole formed in the pressurizing means.
37. Bottle according to any one of Claims 6 to 36, characterized in that the cap (109, 210, 306, 404) has a flat face which allows the bottle to be stored head down.
38. Bottle according to any one of the preceding claims, characterized in that the pressurizing means and the reservoir communicate via a narrow passage such as a capillary passage.
39. Bottle according to any one of the preceding claims, characterized in that it comprises a dispensing tip (801) through which there passes a passage (802), a two-way flap valve (803), this valve separating the passage (802) into two passages - an upper passage (802.1) which communicates with the inside of the bottle, and a middle passage (802.2), the latter continuing into a lower passage (802.3) which has an opening (805) to the outside of the bottle.
40. Bottle according to the preceding claim, characterized in that the tip (801) has a concave profile (804) at the opening (805) of the lower passage (802.3).

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