FR3047235A1 - PRESSURIZED CONTAINER WITH HOLLOW HEAD AND ADDITIONAL GAS VALVE - Google Patents

Abstract

The invention relates to a container pressurized by means of a non-liquefied compressed gas, said container being equipped with a dispensing head comprising: a body (3) open at its two opposite axial ends, a cooperating part (10) open to its two opposite axial ends, at least partially defining a dispensing orifice (12), the receptacle being provided with a dispensing valve (60) having a valve body (77) having an orifice (71) for additional gas and internal restriction (72).

Description

Pressurized container with hollow head and additional gas valve

The present invention relates to dispensing heads used for dispensing a product contained in a container, including spraying. The invention relates more particularly, but not exclusively, to spray heads intended to equip pressurized containers containing cosmetic products.

Many spray heads have been proposed, at one or more orifice (s) distribution. Many parameters are to be considered when designing a spray head.

Firstly, the spray generated must have the particle size suitable for the application. In this respect, the size of the droplets should not be too small or too large.

Moreover, the spray generated must be delivered with the required flow rate and the spray head must not oppose too much loss of load to the circulation of the product.

The shape of the spray must also correspond to the intended application and thus allow, depending on the case, to cover a more or less extensive surface.

Finally, the spray head must be aesthetically attractive to the consumer, and its manufacture compatible with the requirements of large scale production. The invention aims to provide a new dispensing head which is particularly suitable for spraying a cosmetic product.

The application EP 1 052 023 A1 discloses a spray head having a dispensing orifice defined between a shutter having a frustoconical portion and the body of the head. The shutter opens by deformation of the frustoconical portion under the pressure of the product during dispensing. Π is formed a conical and hollow spray, at least in the vicinity of the head.

The application WO 2011/065413 discloses various arrangements of spray heads in which a spray orifice is defined between a peripheral portion and a central portion, interconnected by bridges of material.

The application EP 2 800 632 belonging to the Applicant discloses a dispensing head intended to equip a container containing at least one product to be dispensed, this dispensing head comprising: a body open at its two opposite axial ends, a cooperating part open to its two opposite axial ends, at least partially defining a dispensing orifice.

When the container is pressurized with a non-liquefied compressed gas, for example compressed air, the pressure in the container is generally limited to about 12 x 10 5 pascals. The pressure in the container decreases as and when dispensing. As a result, at the end of dispensing the spraying, the pressure may be insufficient to properly spray mechanically at the dispensing orifice since the initial pressure is capped.

In addition, for the metered dispensing of many products, it is desirable to be able to actuate the dispensing head of the device that it is in the "head up" position in which the operating rod of the dispensing valve is inclined or vertical, upward, or "upside down" position, in which the dispenser valve operating rod is inclined or vertical, directed downwardly.

Such a dual possibility of use exists especially in the case where the container is made to contain a cosmetic product intended to be applied on the whole body, such as a solar product or a care product.

There remains therefore a need for a packaging that is suitable for a cosmetic composition such as a care oil, a cream or a gel that: is practical to use, especially nomadically, can be made aesthetically attractive , delivers the product in all positions, especially if the device is held upside down, has a sufficient emptying rate, provides an improved spray, without emptying too quickly of its propellant the pressurized container. The invention responds to this need by means of a pressurized container using a non-liquefied compressed gas, said container being equipped with a dispensing head comprising: a body open at its two opposite axial ends, a cooperating part open to its two opposite axial ends, at least partially defining a dispensing orifice, the container being provided with a dispensing valve having a valve body provided with an additional gas intake orifice and an internal restriction.

The specific valve used according to the invention comprises separate individual feed ports. One is for liquid products (possibly mixed with solid particles). Π forms a restriction in the valve body called "internal restriction". The other, called "additional gas intake port" is for the propellant. The two individual ports open onto a mixing chamber. In this chamber, the streams of liquid products and propellant mix to form a resulting product. The latter is ejected by an outlet called "nozzle".

By providing a valve with an additional gas intake and an internal restriction, it can ensure a dispensing of the product without change in flow both when the device is arranged "head up" than when the device is arranged "upside down".

Thanks to the invention, it becomes possible to use a device head comprising the body and the cooperating portion defined above for spraying a cosmetic product in more difficult body areas such as the back of the legs or the back. Indeed, even if the user returns or inclines the device, spraying remains possible. Hard-to-reach areas can now be treated with a skin care product or solar product for example as effectively as the face or neck.

In particular, the dispensing orifice is preferably defined between the body and the cooperating part but may, alternatively, be defined entirely by the cooperating part.

Thanks to the invention, a passage is formed through the dispensing head and more particularly through the body and the cooperating part, allowing an air flow to be established through the head when the product to be dispensed is emitted. , which may be advantageous when the product is emitted in the form of a spray, allowing a stream of air to be created through the head to accompany the flow of the spray.

In addition, the dispensing head has an appearance that clearly contrasts with the usual aesthetics of known dispensing heads, and is particularly attractive to the consumer.

Furthermore, the passage through the head can be made with sufficient dimensions to allow, if desired, to introduce the finger or a lock of hair in this passage. This can facilitate the application of a product on the finger or lock of hair. The invention may also allow, if desired, to facilitate the production of an annular section dispensing orifice between the cooperating portion and the body, allowing the formation of a hollow spray. Alternatively, several dispensing orifices are formed between the body and the cooperating portion, for example for the purpose of dispensing the product in the form of several sprays or jets. The number of dispensing orifices may in particular be greater than or equal to 10, more preferably 20, and even better 30. The dispensing orifices each have, for example, a cross section greater than or equal to 0.003 mm 2, better still 0.006 mm 2, and are preferably spaced between they (measure along a line between centers of gravity) of a distance of more than 1 mm.

In another variant, a plurality of dispensing orifices are entirely formed in the cooperating part. The orifices may be constructed in such a way that the jet leaving each orifice is swirling, in particular thanks to at least two swirling channels oriented tangentially about the axis of the orifice. The cooperating part may have, in axial half-section, a U shape. The body may have two concentric mounting skirts between which the cooperating part is fixed. The body may comprise a crown on which the cooperating part engages, the ring being able to carry one or more reliefs defining with the cooperating part supply channels, in particular vortex channels, towards the dispensing orifice.

The body can define a housing in which is received the cooperating part, which is then called core.

The dispensing orifice (s) can be opened at rest. By "at rest" it is necessary to understand before the cooperating part is exposed to the pressure of the product to be dispensed. Thus, in this case, the or the dispensing orifices are already formed and open when the product is sent into the head to be dispensed. As a variant, the dispensing orifice is formed at the moment of dispensing the product, for example thanks to the elasticity of at least a portion of the body or of the cooperating part, which deforms under the pressure of the product at the time of dispensing. distribution.

Thanks to the invention, in the case of a spray, the spray can be emitted with a relatively large flow rate, if desired, while having a spray head of relatively simple construction and reliable operation. In particular, the dispensing orifice can be made with well-defined dimensions. In addition, the dispensing head can present an attractive aesthetic for the consumer.

The body may have a first surface flaring outwards, respectively converging towards the outside, and the cooperating portion having a second surface facing the first surface, diverging outwards, respectively converging towards the outside . The first surface can be tapered. The second surface may be conical, of the same angle as the first surface or upper or lower angle.

A different angle, resulting in an enlargement of the space between the cooperating part and the body as one approaches the dispensing orifice, may be preferable in the case of dispensing a foam, to allow it to expand and slow down before exiting through the dispensing orifice.

A different angle resulting in a narrowing of the space can lead to an acceleration of the jet before its release, which can be interesting in the context of a spray. The dispensing orifice may be single or not and may have an annular shape or not. The dispensing orifice may have a constant width in the circumferential direction. The or distribution orifices may be defined between two concentric, for example cylindrical, revolution surfaces of revolution.

The distribution orifices may be axially symmetrical, preferably rotationally symmetrical, around the distribution axis in particular. The axis of distribution is defined by the general direction towards which the product is distributed by the head.

The cooperating portion is preferably reported, which facilitates its manufacture and that of the body. In a variant, the cooperating portion is molded in one piece with the body, in particular in the case of dispensing a foam, the dispensing orifice then having a larger cross-section than in the case of spraying. a spray. The space between the body and the cooperating part is fed by at least one supply channel whose section is preferably greater than that of the dispensing orifice, which facilitates the filling of this space before the product sort through the dispensing orifice.

A product distribution chamber may advantageously be formed between the cooperating portion and the body, upstream of the dispensing orifice. This can facilitate the emission of a homogeneous spray, in particular.

The product supply channel may open into this chamber, which preferably has an annular shape. Its width, which corresponds to the interval between the cooperating part and the body, is preferably greater than the maximum width of the passage through which the distribution chamber communicates with the dispensing orifice. At least one of the body and the cooperating portion, preferably the body, may have at least one centering relief of the cooperating portion relative to the body, and preferably at least ten, preferably at least twenty, more preferably at least forty. These reliefs can come to the edge of the part in which they are made so as to generate a multitude of orifices through which the product jets emerge, the centering reliefs being in particular oriented parallel to the distribution axis or obliquely in the same circumferential direction around the axis, possibly still possibly defining between them sectional narrowing resulting in an acceleration of the jet of product. This or these reliefs are preferably set back from the dispensing orifice when one seeks to generate a spray in the form of a single jet. The reliefs may be made on the body, being for example in the form of axial ribs evenly distributed over the entire surface of the body facing the cooperating portion.

The centering reliefs may possibly ensure by themselves the maintenance of the cooperating part on the body. Alternatively, the cooperating portion is fixed on the body elsewhere than at the level of the centering reliefs, the centering reliefs in this case may or may not have a function of maintaining the cooperating portion on the body.

Preferably, the cooperating portion is fixed relative to the body. Alternatively, the cooperating portion is adjustably attached relative to the body, for example to allow the user to adjust the width of the dispensing orifice or close it in the absence of use, for example in the screwing a quarter turn, this screwing accompanied by an axial displacement of the cooperating portion relative to the body.

The cooperating portion may be flush with the front end of the body so as to generate a spray of axis substantially parallel to the axis of the cooperating portion.

The cooperating portion may protrude axially from the front end of the body by a value of between 0 and 1 mm, better still between 0 and 0.5 mm. The spray can then be divergent towards the axis of the cooperating part.

The coooping portion may be axially recessed from the front end of the body by a value between 0 and 1 mm, better between 0 and 0.5 mm. The spray can then be convergent towards the axis of the cooperating part. The invention makes it easy to produce, if desired, a circular inner contour dispensing orifice. The inside diameter of the passageway formed through the head is for example greater than or equal to 10 mm, more preferably 15 mm, 20 or 30 mm. When the passage is not of circular section, the "inside diameter" designates that of the largest circle inscribed in this passage.

The head may comprise at least two housings and two cooperating parts arranged in the housing and each defining with the body, at rest, a dispensing orifice according to the invention. The distribution axes can then be parallel or not, intersecting or not, for example converge towards each other. The dispensing orifice may be axial, in axial half-section, convergent or divergent with respect to the direction of spraying.

Advantageously, the diameter of the additional gas intake orifice is greater than or equal to the diameter of the internal restriction.

Thus, the spray obtained is fine, visually pleasing and looks like a haze.

Preferably, a diffusion head having 5 to 20 holes is used for orifice sections ranging from 0.01 mm 2 to 0.1 mm 2.

This makes it possible to imagine the extent of the possibilities both in terms of the number of orifices and the sections or powers of the sprays. Similarly, the gas rate can be reevaluated according to the needs. The invention further relates, in another aspect, to a container equipped with a dispensing head according to the invention.

The product may be a cosmetic product to be dispensed in the form of a spray or a foam.

The container may be a pressurized container, for example equipped with a hollow valve stem engaged in a housing of the head adapted to receive it. The invention will be better understood on reading the following detailed description, non-limiting examples of implementation thereof, and on examining the appended drawing, in which: FIG. schematically in perspective, an example of dispensing head made according to the invention, before mounting the cooperating portion on the body of the head, Figure 2 shows the dispensing head after mounting the cooperating part in the body, the FIG. 3 is a view similar to FIG. 1 with partial section, FIGS. 4A to 4F illustrate various arrangements, among others, of the cooperating part and of the body, FIG. 5 illustrates the possibility of making the dispensing head with two 6 is a front view of a dispensing head with concentric dispensing orifices, FIG. 7 is an axial section of an embodiment of a dispensing orifice. 8A and 8B are various examples of configurations of the cooperating part of FIG. 7 in partial front view, FIG. 9 is a partial axial section of an embodiment variant of the orifice of FIG. 10A and 10B are front views according to X of various configuration examples according to FIG. 9, FIG. 11 is a view similar to FIG. 2 of an alternative embodiment of the head, FIGS. 12A to 12C. illustrate various examples of arrangements of reliefs on the body, Figures 13A to 13C illustrate different examples of configurations of the cooperating portion relative to the body, Figure 14 is a partial axial section of an alternative embodiment of the orifice of FIG. 15 is a section along XV of FIG. 14, FIG. 16 is an exemplary embodiment of the body according to FIG. 14, and FIG. 17 is a cutaway perspective view of an example. of dispensing head according to the configuration of FIG. 14, FIG. 18 is a longitudinal sectional view of an additional gas take-off valve

In the drawing, the actual proportions of the different constituent elements have not always been respected, for the sake of clarity.

The dispensing head 1 shown in Figures 1 to 3 is intended to equip a container not shown, provided with a hollow valve or pump stem, through which the product to be dispensed contained in the container is conveyed to the head 1.

The container may in particular be a pressurized container of the aerosol can, containing a propellant such as for example compressed air. The container may contain at least one cosmetic, dermatological or other compound, especially intended for household application. The product may be sprayed or otherwise dispensed, for example as a foam. The proportion by mass of gas, within the cosmetic composition, may be greater than or equal to 50%, in particular between 50 and 60%, in particular in the case of an alcoholic cosmetic compound, or even between 70 and 80%, especially in the case of an alcoholic cosmetic compound. case of a cosmetic compound in the form of an emulsion, or even between 80 and 95%, especially in the case of an anhydrous cosmetic compound. The dispensed cosmetic compound may be a mixture of water, alcohol, oil and gas.

The container is equipped with a valve and the valve opening can be effected for example by depressing the hollow rod or alternatively by tilting thereof. When the container is equipped with a pump, the pump can be actuated for example by depressing the hollow rod along its longitudinal axis.

The head 1 comprises a body 3, which can be made monolithically by molding in one piece or comprise several elements made separately and assembled.

The dispensing head 1 may comprise, as can be seen in FIG. 2, a housing 6 intended to cooperate with the hollow rod to allow the product delivered by it to gain a supply channel 7 which opens into a housing 8 of the body 3. The housing 6 has a dimension adapted to the outer diameter of the rod, so as to obtain a sealed mounting of the rod in the housing 6, so that the product delivered by the rod passes entirely into the supply channel 7. The latter is for example coaxial with the container stem but could be oriented differently and comprise for example several differently oriented portions.

A cooperating portion 10, hereinafter called the core when it is internal to the body, is fixed in the housing 8 and defines for example with the body 3 a dispensing orifice 12 of annular section, as illustrated.

By "annular section" is meant within the meaning of the present invention any section following a closed contour, that this contour is circular, elliptical, polygonal or other.

The core 10 is traversed axially by an opening 90 whose inner diameter D may be relatively large, for example greater than or equal to 10 mm, better 15, 20 or 30 mm. The opening 90 contributes to giving the head a particularly aesthetic appearance. In addition, the opening 90 can allow air to circulate through the head under the effect of driving a spray emitted by the dispensing orifice 12. This can contribute to increasing the range of the spray and can increase the freshness effect brought by it, if any. The opening 90 may also allow to introduce through the head a finger or a lock of hair, which may allow to apply a single gesture a product on the entire circumference of the element introduced through the head. This can be an advantage to apply for example an antiseptic or care product on a finger or treat a lock of hair. The distribution axis Z may be perpendicular to the longitudinal axis X of the container on which the head is mounted, as illustrated.

The head 1 comprises a base 92 which defines a surface 4 on which the user can press to cause dispensing.

The base 92 may be extended inferiorly by a trim skirt 93, which covers the top of the container.

The housing 8 which receives the core 10 is defined by a ring 94 of axis Z, whose lower side joins the base 92. The supply channel 7 passes through the base 92 and ends in the housing 8 at a distance from the axial ends, along the axis Z, of the ring 94, preferably being closer to the rear end 94a than the front end 94b, as seen in FIG.

The body 3 may have, as illustrated, a shoulder 95 near the rear end 94a, against which may come, if necessary, in axial abutment the core 10 at the end of its assembly.

The core 10 and the housing 8 may have annular surfaces 96 and 97, in sealed contact, to close the space formed between the core 10 and the body 3 behind the supply channel 7.

Preferably, the circumferential width 1 of the dispensing orifice 12 around the spraying direction Z is constant. It is not beyond the scope of the present invention when this width 1 varies, for example to take into account the possibly non-uniform pressure drop experienced by the product flow upstream of the dispensing orifice 12. This loss non-uniform charge results for example from the geometry of the space between the core and the body, in particular the presence of angles or crossings. By varying the width 1, we can ensure that the product can go out more easily where this pressure drop is greatest, if one tries to have a spray as homogeneous as possible.

The width 1 of the dispensing orifice is for example between 0.01 and 0.15 mm for spraying a spray and 0.5 to 2 mm for dispensing a foam.

The core 10 can be fixed in various ways on the body 3. In the example illustrated in Figures 1 to 3, the core 10 is frictionally retained on the body 3.

In the example shown, the core 10 is made separately from the body 3 and attached thereto. The core 10 may be made of the same thermoplastic material as the body 3 or alternatively in a different thermoplastic material. It is also possible to use the core 10 to make a metallic material.

Axial ribs 38 are formed on the inner circumference of the housing 8, as can be seen in FIGS. 1 and 3 in particular, in order to center the core 10 in the housing 8. The centering reliefs 38 may be, as illustrated in FIGS. 12A to 12C , parallel or oblique in the circumferential direction to the Z axis, or curves. Each relief 38 may have, when viewed in plan view, a polygonal contour, in particular rectangular or trapezoidal, or flared shape in the direction of the dispensing edge. Two centering reliefs 38 may define between them a narrowing 39 near the dispensing orifice so as to accelerate the fluid by venturi effect. The number of centering reliefs 38 is preferably at least 10, more preferably 20, even better 40. The space 22 formed between the core 10 and the body 3 may have the configuration illustrated schematically in FIG. 4A, and result in the dispensing orifice 12 by an annular end portion 22c formed between two surfaces 3a and 10a, cylindrical of revolution about the axis Z.

The end wall 22c is connected to a proximal portion 22a by an inclined intermediate portion 22b formed between facing surfaces 3b and 10b.

The centering reliefs 38 extend in the proximal portion 22a. The latter is supplied with product by the distribution chamber 22d.

When the user actuates the dispenser head 1, the product gains through the supply channel 7 the space 22 between the core 10 and the body 3 and can be delivered in the form of a spray through the orifice of distribution 12.

In the example of FIGS. 1 to 3, the spray is angularly continuous around the distribution axis, due to the absence of contact between the core 10 and the body 3 at the level of the dispensing orifice 12. the zone or zones of support between the core 10 and the body 3 are for example, as illustrated, set back from the distribution orifice 12 by a distance (measured along the distribution axis Z) of at least 0.5 mm.

The spray may be angularly discontinuous around the distribution axis, by the presence, particularly at the reliefs 38, of contact between the core 10 and the body 3 at the outlet of the product.

Preferably, the cross section of the feed channel 7 is greater than the section of the dispensing orifice 12, so as to allow rapid filling with the product of the space upstream of the dispensing orifice, which can contribute to the formation of a homogeneous spray from the beginning of the spray.

The distribution chamber 22d arranged upstream of the space 22a in which the centering reliefs 38 extend receives the product delivered by the supply channel 7.

The width ω of the distribution chamber 22d is greater than that 1 of the end portion 22c which opens out on the dispensing orifice 12.

The distribution chamber 22d improves the distribution of the product before it reaches the narrower portions of the passage through which the product is evacuated.

FIGS. 4B and 4C illustrate various other examples of possible configurations for the space 22 formed between the core 10 and the body 3 for the circulation of the product to the dispensing orifice.

In the example of FIG. 4B, the space 22 formed between the core and the body comprises a proximal portion 22a in which the reliefs 38 of centering of the core 10 extend relative to the body 3, extended by an intermediate portion 22b which makes an angle with the direction Z of spray, for example a re-entrant angle. This intermediate portion 22b may be connected to an end portion 22c, which opens onto the dispensing orifice 12, this end portion being for example, as illustrated, defined between two surfaces 3a and 10a, cylindrical of revolution, parallel to the direction of rotation. distribution Z. The variant of Figure 4B does not include a distribution chamber.

In the variant of FIG. 4C, the terminal portion 22c communicates directly with that 22a in which the centering reliefs 38 extend. The end portion 22c is, for example, at an angle to the distribution direction Z. Thus, in half-section axial, the axis of the orifice 12 is for example convergent, as illustrated.

In the variant of FIG. 4D, the cooperating part 10 is external to the body 3. The cooperating part 10 is fixed on the body 3 so as to arrange therewith the distribution chamber 22d, facing the supply channel 7 The portions 22a, 22b and 22c make it possible to convey the product to the dispensing orifice 12.

The feed channel 7 opens for example into the distribution chamber 22d by a portion oriented parallel to the distribution axis Z.

Centering reliefs 38 are made for example on the body 3. The cooperating portion 10 can be made, as illustrated, with an annular lip 39 which partially delimits the distribution chamber 22d and allows to form a narrowing 47 of section between the chamber 22d and the portion 22a.

FIG. 4E illustrates the possibility of having an angle between the axis Z2, in axial half-section, of the orifice 12 and the distribution axis, which is divergent.

In the variant of Figure 4F, there is illustrated the possibility of having no angle between the axis of distribution and the Z axis of the cooperating portion 10. The supply channel 7 opens for example on a distribution chamber 22d. The product is conveyed to the dispensing orifice 12 via channels 22 comprising the reliefs 38. The reliefs 38 extend to the edge of the dispensing orifice 12 and define a plurality of orifices for delivering the product under the form of a plurality of jets. The invention is not limited to a dispensing head having a single dispensing orifice 12 made according to the invention. By way of example, FIG. 5 illustrates a dispensing head 1 which has two dispensing orifices 12.

In the presence of several dispensing orifices, these can be distributed in multiple ways on the dispensing head. For example, the spraying axes are parallel, or at an angle, being for example intersecting.

FIGS. 7, 8A and 8B illustrate the possibility for the dispensing head to have a plurality of dispensing orifices 12 formed entirely in the core 10 in order to distribute the product in the form of several jets, for example. The dispensing orifices 12 may have many shapes when viewed along their transverse axis, in particular circular or triangular, as illustrated in FIGS. 8A and 8B. The dispensing orifices 12 may be drilled in the core 10, for example by laser drilling.

The core 10 may have an axial half-section, as shown in FIG. 7, the shape of a U. The body 3 may comprise two concentric mounting skirts 41 which define between them a mounting space for the core 10, and have at its center a ring 43 serving as a support for the cooperating portion 10. The skirts 41 define with the ring 43 two annular channels 45 in which are placed the tabs of the U. The ring 43 may comprise for each orifice 12 two channels of brought 22 of the liquid to this orifice 12.

During assembly, as illustrated in Figures 14 and 17, the core 10 can be pressed against the stud 43, the end face 48 of the ring 43 being in contact with the inner face 11 of the core 10. The legs of the U the core 10 are fixed in the channels 45, the inner face 46 of the mounting skirts 41 being in contact with the face 13 of the core 10. The inner faces 14 of the legs of the U and the lateral surfaces 49 of the ring 43 can define between they supply channels 22 of the liquid towards the dispensing orifice 12. The crown 43 may have, especially in the form of indentations, on its outer face 48, feed channels 23 allowing the passage of liquid from the channels brought to the dispensing orifice 12.

The supply ducts 22 open upstream of the dispensing orifices 12, on the supply ducts 23 which lead to the dispensing orifice 12. The supply ducts 23 generate, by their orientation with respect to the orifice distribution, a vortex flow output of the dispensing orifice 12. This configuration is particularly useful in the case of a carrier gas that is not liquefied.

In a variant, the supply ducts 22 may be made in the form of indentations on the lateral surface 49 of the body and / or on the internal faces 14 of the core 10.

In a variant not shown, the core 10 has, in particular in the form of indentations on its inner face 11, supply channels 23, the end face 48 of the crown 43 can be smooth.

In a variant, the ring 43 is not circumferentially continuous and defines pads. The studs are placed upstream of the dispensing orifices 12 and may have, upstream of the dispensing orifices 12, the supply channels 22 and 23 as described above.

In the variant of FIGS. 4F, 9 and 10, the dispensing orifices 12 are formed between the core 10 and the body 3, being for example distributed all around the spraying axis Z. The core 10 or the body 3 may have centering reliefs 38 which circumferentially delimit the dispensing orifices 12. The centering reliefs 38 may, as illustrated in FIGS. 12A to 12C, come to the edge of the core 10 over the entire periphery and define between them the distribution orifices 12 The number of dispensing orifices 12 is preferably at least 10, more preferably 20, more preferably 40. The cross section of a dispensing orifice 12 is, for example, greater than 0.003 mm 2. The dispensing orifices 12 are preferably spaced apart by a gap of at least 1 mm, which is the same as the pitch p between the centering reliefs. As illustrated in FIGS. 10A and 10B, the dispensing orifices 12 may be of polygonal cross-section, in particular triangular in cross-section.

The core 10 may extend, as illustrated in Figure 13A, recessed relative to the body by a value between 0 and 1 mm, better between 0 and 0.5 mm. The body 3 overflows from the dispensing orifice and can generate a convergent spray.

The core 10 may be, as shown in Figure 13B, flush with the body 3. The spray can then be straight.

The core 10 may extend, as illustrated in FIG. 13C, forward with respect to the body 3 by a value of between 0 and 1 mm, better still between 0 and 0.5 mm. The spray can then be divergent.

It is not beyond the scope of the present invention when an additional dispensing orifice is present, for example by bringing back inside the core 10 a second core 50 which defines with the first core 10 a second distribution orifice 51, coaxial to the first, as shown in Figure 6. A passage 90 remains formed through the dispensing head. The dispensing orifice may be fed by more than one product.

The dispensing head can be fed by two products which are distributed by separate dispensing orifices. The Z axis may be non-perpendicular to the axis of the container stem on which the head is mounted, as shown in Figure 11. In this example, the Z axis is upwardly oriented when the container is vertical with the dispensing head at the top.

The feed channel 7 can be oriented substantially parallel to the distribution axis Z, at least for the portion that opens facing the cooperating portion 10. The latter can be made with an annular lip 39 which defines a sectional narrowing 47.

The configuration may be similar to that of FIG. 4D except that the cooperating portion 10 is external to the body 3 in the example of FIG. 4D and inside in the example of FIG. 11.

Referring to FIG. 18, there can be seen an X-axis aerosol canister-type pressurized container containing a liquid to be sprayed and a propellant preferably consisting of an inert gas, especially compressed air, or a propellant.

The container has an opening 64 on which is crimped a cup 65. A dispensing valve 60 is fixed, generally by crimping, in the center of the cup 65. The valve 60 comprises a valve body 77 provided, at its end fixed on the cup 65, a peripheral bulge 68 or valve shell. The edge of this bulge 68, remote from the bottom of the container, is provided with a peripheral rib 69, defining an edge against which is pressed a sealing washer 610, for example of elastomeric material. The crimping of the central portion of the cup 65 on the bulge 68 keeps the outer edge of the washer 610 tight against the ridge of the rib 69 so as to seal at this level. At its opposite end to the rib 69, the valve body 77 is extended by a pipe 611, of reduced diameter, forming a valve stem. The valve body 77 defines a mixing chamber 177 of the gas and liquid.

A valve stem 612 is mounted axially movable in the body 77, this rod being extended by a portion 613 of smaller outer diameter projecting outside the cup 65. An axial channel 614 is provided in the part 613 and opens at the free end.

The rod 612 is held in the rest position or closed by a return spring 618 provided between a shoulder 67 of the body 77 and the rod 612. A sufficient radial space is provided between the outer surface of the rod 612 and the inner surface 811 body 77 to allow free passage of fluids.

In the example shown, the additional gas intake 71 is perpendicular to the axis X of the valve body 77. The additional gas outlet 71 opens into the valve body 77; it may consist of two sections at right angles or a single section.

The internal restriction 72 is located in the lower part of the valve 60. Its axis coincides with the axis X of the valve 60.

The nozzle 73 is located in the upper part of the valve 60. Its axis is perpendicular to the axis X.

The valve 60 advantageously have the following characteristics: the diameter (PGA) of the orifice of the additional gas intake (71) is between 0.6 mm and 0.8 mm. - The diameter (Ri) of the internal restriction (72) is between 0.5 mm and 0.6 mm. - The diameter (Gi) of the nozzle (73) is between 0.4 mm and 0.6 mm. The term "between x and y" means belonging to the range from x to y, x and y being included .

The dispensing head can be arranged to allow the mounting of a protective cover and include, where appropriate, an on / off system to prohibit the actuation of the device for a certain position of the dispensing head relative to the container or for a certain position of a locking element of the dispensing head relative thereto.

The product to be sprayed can be a deodorant, in particular an alcohol-containing deodorant, an antiperspirant, a styling treatment, a shaving foam, among other possibilities.

In non-illustrated variants, the dispensing orifice is formed between a body and a cooperating part, the body being radially internal with respect to the cooperating part, the channel for feeding the product passing through the body. All the features described with reference to the figures can be found in such variants where the body is radially internal with respect to the cooperating part. The expression "comprising one" must be understood as being synonymous with "having at least one".

Claims (9)

1. Pressurized container using a non-liquefied compressed gas, said container being equipped with a dispensing head comprising: a body (3) open at its two opposite axial ends, a cooperating part (10) open at both ends thereof axial members, at least partially defining a dispensing orifice (12), characterized in that the container is provided with a dispensing valve (60) having a valve body (77) having an orifice (71) of additional gas intake and internal restriction (72). 2. Container according to any one of the preceding claims, the orifice (71) for additional gas intake having a diameter (PGA) greater than or equal to the diameter (Ri) of the internal restriction (72). 3. Container according to any one of the preceding claims, the orifice (71) of the additional gas outlet having a diameter (PGA) of between 0.6 mm and 0.8 mm. 4. A container according to any one of the preceding claims, the internal restriction (72) having a diameter (Ri) of between 0.5 mm and 0.6 mm. 5. Container according to any one of the preceding claims, the valve (60) having a nozzle (73) of diameter (Gi) between 0.4 mm and 0.6 mm. 6. Container according to any one of the preceding claims, the dispensing orifice (12) being annular and preferably having, in the circumferential direction, a constant width (1). 7. Container according to any one of the preceding claims, the dispensing orifice (12) being axially symmetrical, preferably symmetrical of revolution. 8. Container according to any one of the preceding claims, the cooperating portion (10) protruding axially from the front end (94b) of the body (3). 9. Container according to any one of the preceding claims, the dispensing head having a plurality of dispensing orifices (12) made in the cooperating part (10), the latter having, in axial half-section, a U-shape, the body having two concentric mounting skirts (41) between which the cooperating part (10) is fixed, the body (3) possibly comprising a crown (43) on which the cooperating part (10) engages, this ring (43) being able to carrying one or more reliefs defining with the cooperating portion (10) swirl channels (23).