EP3914533A1

EP3914533A1 - Dispenser for a pressurised container

Info

Publication number: EP3914533A1
Application number: EP20700736.0A
Authority: EP
Inventors: Eric Gaillard; Hervé BODET
Original assignee: Lindal France SAS
Current assignee: Lindal France SAS
Priority date: 2019-01-25
Filing date: 2020-01-21
Publication date: 2021-12-01
Also published as: AR117851A1; US20220097951A1; MX2021008846A; US20220081188A1; US20220097950A1; BR112021014595A2; US11667461B2; WO2020152125A1; CA3126619A1; CA3126617A1; BR112021014610A2; MX2021007737A; EP3914531A1; CA3126616A1; AR117857A1; BR112021014594A2; US11661265B2; EP3914534B1; MX2021008841A; AR117853A1

Abstract

Disclosed is a dispenser (100) for a pressurised container (20) provided with a valve (30), provided with a base body (110) having a finger tab (130) intended to be pressed by the user in order to actuate the valve (30), and having an output opening (114) intended for the output of a product contained in the container (20). The dispenser (100) is also provided with an output pipe (120) placed in the base body (110), which output pipe (120) has a first end (121) configured to cooperate with the valve (30) of the pressurised container (20), and a second end (122) configured for the output of the product contained in the pressurised container (20). The output pipe (120) is coupled to the base body (110) so that the second end (122) of the output pie is substantially facing the output opening (114) of the base body (110). At least one part of the base body (110) is manufactured from recycled material. The output pipe (120) is manufactured from a material different from the recycled material.

Description

DIFFUSER FOR PRESSURE CONTAINER TECHNICAL FIELD

The invention relates to a diffuser for a pressurized container provided with a valve, in particular for an aerosol generator, and more particularly a diffuser comprising different materials.

STATE OF THE ART

Generally, a diffuser is made up of two main elements with distinct functions injected into a single material. These two elements are the outlet duct, the functions of which are to lead the product contained in the pressure vessel from the valve and to distribute this product and the base body which makes it possible to protect the outlet duct and which includes elements to activate the outlet duct and cause the product to exit. The diffuser can be molded as a single piece or have parts injected into a single material and assembled or welded together. Only the outlet duct of the diffuser is in direct contact with the product contained in the container. There are therefore constraints on the material to be used during the manufacture of the outlet duct depending on the product contained in the pressure vessel. This constraint at the level of the manufacturing material then imposes costs on the manufacture of the diffuser. Thus, there is a need for a base body and a diffuser outlet duct whose costs are better optimized.

There are already diffusers whose elements, before assembly, are initially separate and then assembled by gluing or thermal welding, or produced by bi-material injection, and whose design takes into account the basic body on the one hand and the duct. exit on the other hand. Only the elements of these diffusers are most often designed with, as an optimization variable, better diffusion of the product contained in the pressure vessel. The question of optimizing the quality and volume of the material making up the outlet duct, the cost of which is generally imposed by the material chosen, is hardly, if at all, considered. Therefore, it is necessary to have a diffuser whose outlet duct and the base body allow the optimization of the qualities and volumes of the materials chosen to limit the additional costs. In addition, to meet societal commitments while respecting regulations, it may be important or even essential to be able to choose different qualities of materials for the outlet duct and the base body. DISCLOSURE OF THE INVENTION

The objective of the invention is to provide a diffuser in which the choice of material for the outlet duct and that of the base body is dictated only by the properties sought for each of them, the diffuser also having to be economical to manufacture.

According to a first aspect of the invention, there is provided a diffuser for a pressurized container provided with a valve, in particular for an aerosol generator. The diffuser is provided with a base body having a finger cot intended to be pushed in by the user to actuate the valve, and having an outlet opening for the exit of a product contained in the pressurized container. The diffuser is further provided with an outlet duct placed in the base body, which outlet duct has a first end configured to cooperate with the valve of the pressure vessel, and a second end configured for the outlet of the product contained in it. the pressure vessel. The outlet duct is coupled to the base body such that the second end of the outlet duct is substantially facing the outlet opening of the base body. At least part of the base body is made from recycled material. The outlet duct is made of a material other than recycled material. Optionally, the material of the outlet duct can itself be recycled.

The embodiments of the invention are based inter alia on the inventive idea that the material used for the basic body part and the material used for the outlet duct are of different origins, and therefore of different prices. It is thus possible to limit the use of a higher quality material in contact with the product contained in the pressure vessel to the single outlet duct, a relatively small part, while the material used for the part of the base body will be a material recycled material which may be chosen for its mechanical properties, lower cost, aesthetics, etc., rather than for its physicochemical suitability for the product contained in the container. This can be achieved by providing an outlet duct and a base body in two separate pieces which can be coupled by different hooking means. Thus, the dimensions of the outlet duct can be optimized to use as little material as possible, while the material of the part of the base body will be an economically advantageous recycled material.

In the context of the invention, the adjective “recycled” refers to a material from a used object which is recovered and reintroduced into a production cycle. In other words, a recycled object is a waste resulting from a previous use which has undergone a recycling operation with a view to being reintroduced into a production cycle. The recycling operation in question may include operations, or mechanical, physical and / or chemical transformations with a view to restoring the aptitude of the object to be reintroduced on the consumer market. In other words, the recycling of an object is a process for treating the materials of this object which makes it possible to reintroduce into a production cycle, materials that made up a similar object or not reached the end of its life or residues of manufacturing. Depending on the quality of the recycling carried out, impurities may remain within the recycled material.

In the context of the invention, the expression “physicochemical aptitude” relates to a material whose chemical properties are suitable for the product contained in the pressure vessel, that is to say whose physicochemical properties. do not alter the chemical composition of the product or its organoleptic properties, and therefore its quality.

According to the embodiments of the invention, the material used for the outlet duct is different from the recycled material used for the basic body part. In other words, the material used for the outlet duct and the material used for the basic body part can be of different compositions. By "composition" is meant chemical composition in the context of the invention. For example, due to the possible presence of the above-mentioned impurities in the recycled material, the recycled material of the part of the base body is of different composition from the material used for the outlet duct.

Thus, it is possible to use two materials of different compositions for the outlet duct and for the base body. The material of the outlet duct will exhibit chemical suitability for the product to be sampled, while the recycled material of the base body will not need to meet this condition, but may be chosen for its mechanical properties in particular. The base body and the outlet duct can thus be manufactured in different factories. The same outlet duct can be used with basic bodies of different qualities, and the same basic body can be used with outlet ducts of different materials. Many combinations are therefore possible.

According to a preferred embodiment, the material used for the part of the base body has a total migration rate of constituents of said material to a reference product which is greater than the total migration rate of constituents of the material used for the outlet duct. to the reference product. According to an exemplary embodiment, the total migration rate of the constituents of the material used for the outlet duct towards the reference product is less than 10 mg of said constituents per 1 dm ² of surface of said material. According to a preferred embodiment, the material used for the outlet duct is a virgin material. According to an exemplary embodiment, the material used for the outlet duct is a material suitable for contact with food.

Within the European Union, Regulation (EC) No 1935/2004, and more recently Regulation (EC) No 10/2011 concerning plastic materials, constitutes the basic legislation which applies to materials in contact with foodstuffs. According to the Regulations, it is stipulated that said materials must be safe for human health and must not modify the properties of the product in an unacceptable manner. The Regulations also establish that the European Food Safety Authority (EASA) is required to set up a conventional assessment of any risk to human health linked to the use of certain types of materials in contact with food products. Thus, the opinion rendered by EASA must include the name of the substance under evaluation, and any specification or recommendation for any condition or restriction on the use of said substance.

It is possible to manufacture materials, in particular plastic materials, such that they do not reject more than 10 mg of substances per 1 dm ² of surface of said materials. An area of 6 dm ² represents the area of a cube of 1 kg (or 1 titer) of food product. A total migration limit of 60 mg / kg applies for all food contact materials. In other words, any migration of chemical constituents from said materials to food products above this limit is not allowed. If the risk assessment of an individual substance of said materials does not indicate a lower level, this level will constitute a generic limit for the inertness of a material, as described in Regulation (EC) No 1935/2004 and (EC) No 10/2011, in other words the limit of total migration of constituents from the material to the food product. Additionally, based on a toxicological risk assessment, a specific migration limit can be established in addition to the total migration limit. The specific migration limit is the maximum allowable amount of a given substance released from a material in a food product.

To quantify the chemical transfer of constituents from a material to a food product, the concentration of migrating constituents is measured in products simulating food products, also called reference products, and not in food products themselves. The use of reference products simulating real food products is an approximation for the actual migration into real food products. It is generally agreed that their use overstates the actual migration. The reference products are used as substitutes for food products in order to simplify the chemical analysis of migrant constituents that are within them. The chemical detection and quantification of constituents require specific analytical methods for each chemical substance of interest, specially developed for each type of reference product. The reference products vary according to their chemical properties, thus representing different types of food products: hydrophilic (water-based foods), lipophilic (fatty foods) or amphiphilic (foods with both aqueous and fatty properties). For example, the migration to an oily food product is measured using vegetable oil as a reference product. Reference products composed of 10% ethanol or 3% acetic acid are used for water-based foods and beverages. Dry foods are simulated by a synthetic polymer with a defined porosity. Butter and other amphiphilic foods are simulated by a solution of 50% ethanol. Distilled water is commonly used as a reference product for the assessment of the total migration of constituents from a material to a food product, i.e. the total chemical transfer of the constituents from the material to the food product. without necessarily knowing and distinguishing the chemical identity of each constituent taken separately, although other reference products can be used.

It is clear to those skilled in the art that reference products can also be used to simulate products other than food products, such as cosmetic or medical products. Thus, the total migration rate or the specific migration rate of constituents from a material to a cosmetic or medical product can be assessed using cosmetic or medical reference products. Thus, the embodiments of the invention are not limited to the use of reference products simulating food products.

In the context of the invention, the adjective “inert” refers to a material for which the total rate of migration of constituents towards a given product or towards a given reference product is not greater than a certain safety limit, eg greater than the above mentioned total migration limit of 60 mg / kg. In other words, it will be a material that will not alter, or alter but negligibly, the chemical composition of the product, and therefore its quality.

It should be noted that the adjectives “recycled” and “inert” are not necessarily mutually exclusive in the context of the invention. Thus, a recycled material can also be an inert material. Nevertheless, the costs of producing an inert material are generally higher than the costs of producing a recycled material, because the quality of the inert material will generally be higher than the quality of the recycled material. In fact, impurities may remain within the recycled material, depending on the quality of the recycling carried out. Depending on their nature, these impurities may have the consequence that the recycled material cannot be an inert material. with respect to the product because they may exhibit a rate of migration of constituents towards the product greater than a certain safety limit, and thus alter its quality.

In the context of the invention, as opposed to the adjective "recycled", the adjective "virgin" refers to material which has not yet been used. Thus, the material of the outlet duct can be of first use. Note that an inert material may not be virgin. In other words, a recycled material used for the outlet duct can be used if it exhibits a component migration rate below a certain safety limit, thus ensuring that the quality of said product is maintained. In this sense, the material is not virgin, because it is not first time use. It should also be noted that an inert material can also be virgin. Thus, a distinction should be made between the adjectives "virgin" and "inert" in the context of the invention. For example, a virgin material may not be inert, and vice versa.

In the context of the invention, the expression “suitable for contact with food” refers to a material which does not alter the food or organoleptic quality of a food product contained in the pressurized container, thus guaranteeing the safety of the consumer. of said food product. It should be noted that a virgin material can also be suitable for contact with food. It should also be noted that a material suitable for contact with food may not be virgin. Thus, a distinction should be made between the adjective "virgin" and the expression "suitable for contact with food" in the context of the invention. For example, a virgin material may not be suitable for contact with food, and vice versa. Thus, if the diffuser is intended for a food product, the material of the outlet duct will have to be suitable for food contact, while the recycled material of the base body will not need to be and may be more economical.

In other words, the suitability of an object for food contact means that the material of which it is made meets regulatory requirements (see European Regulations above) or standards guaranteeing that there is no risk of toxicity induced, for food or drinks, by this object. Good hygiene practices require that this type of article be inert towards food products, avoiding or safely limiting any migration of substances and having no catalytic effect liable to modify the quality of the product. foodstuff.

It should be noted that the product contained in the pressurized container may belong to fields other than the food field, such as the cosmetic field or the medical field. Regulations specific to these fields also exist and constitute the basic legislation which applies to materials in contact with cosmetic or medical products. The base body forms a cavity which may include a concave wall and a convex wall forming a recess of the cavity. In the context of the invention, the adjectives “concave” and “convex” refer to the interior of the base body. In other words, these adjectives relate to an observer located in the basic body cavity. The exit opening can be made in the convex wall of the base body. Pressure vessels generally have a cylindrical end on which the base body will be attached. The main body of the valve and the cylindrical end of the pressure vessel can be aligned along an axis. Due to the presence of the convex wall, the outlet opening made in the convex wall can be brought closer to the axis of the valve, and the longitudinal dimension of the outlet duct can be minimized. Indeed, thanks to said approximation of the outlet opening, the longitudinal dimension between the axis of the valve and the second end can be minimized, thus making the outlet duct more compact and minimizing the quantity of material used and therefore the costs. of production.

The finger cot of a diffuser can be defined as the part of the diffuser that is directly subjected to displacement as a result of the pressure of a user's finger on a portion of the outer surface of the finger cot. The movement of the finger cot causes, generally mechanically, the displacement of the outlet duct and the actuation of the pressure vessel valve.

According to the first aspect of the invention, at least a part of the base body is made from a recycled material. According to an exemplary embodiment, the finger cot can be made from recycled material, or the convex wall can be made from recycled material, or the concave wall can be made from recycled material, or a combination of two of the three Aforementioned parts can be made from recycled material. According to another exemplary embodiment, the entire base body can be made from the recycled material. For example, both the finger cot, the convex wall and the concave wall of the base body can be made from the recycled material.

The concave wall and the convex wall can be molded in one piece. Thus, a material for making the concave wall and a material for making the convex wall can be the same. In other embodiments, the convex wall can be assembled by gluing or thermal welding to the concave wall, or produced by two-material injection. Thus, a material for making the concave wall and a material for making the convex wall may be different. The choice of molding the concave wall and the convex wall in one piece is generally preferred, since the finished piece will have better mechanical strength. According to a typical embodiment, the outlet duct may be available in a small number of so-called standard variants, for example a variant with a nozzle, and a variant without a nozzle, and the models of the variations of the basic body may be made in a manner to adapt to standard outlet ducts.

According to a preferred embodiment, the material used for the outlet duct comprises any of the following materials: a polymer material, a metal, or a combination of the above materials.

According to an exemplary embodiment, the polymeric material comprises any of the following polymers: polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), polybutylene terephthalate (PBT), polyamide (PA), or a combination of the aforementioned polymers.

According to another exemplary embodiment, the metal comprises aluminum, steel, in particular stainless steel, or an alloy of the above two metals.

According to a preferred embodiment, the material used for the base body part comprises any of the following materials: a polymeric material, a non-polymeric material, or a combination of the above materials.

According to an exemplary embodiment, the polymeric material comprises any one of the following polymers: polyethylene (PE), polypropylene (PP), polylactic acid (PL A), polyhydroxyalkanoate (PHA), polybutylene succinate (PB S), or a combination of the above polymers.

According to an advantageous embodiment, the base body is provided with a connection hole in the finger cot, so that the outlet duct can be hooked to the base body.

By freezing part of the model of the base body by the presence of a connection hole, a constant means for securing the attachment of the outlet duct to the base body is present for all the variations of the diffuser. The connection hole will be used to facilitate the attachment of the outlet duct to the base body. It can be used, for example, to introduce a mechanical attachment means, a glue or adhesive, a weld, or a tool making it possible to fix the outlet duct to the base body. Since only a connection hole is required at a given position on the base body, modeling flexibility between different diffuser variations is ensured. In this way, the base body and the outlet duct of the diffuser can be manufactured independently of one another in materials that are mechanically and / or chemically compatible or not. According to an exemplary embodiment, the variations of the outlet duct are standardized and already manufactured. It will therefore only be necessary to model a single part, the base body, as a function, which will allow more logistical flexibility and reduce costs. The outlet duct can be hooked to the base body by virtue of a hooking portion of the outlet duct introduced into the connection hole so that it cannot come off on its own. The introduced portion can be mechanically joined, welded, chemically glued, and / or heat-sealed to the base body. The connection hole will therefore facilitate the fixing of the outlet duct and, by the introduction of the portion of the outlet duct, will facilitate the positioning of the outlet duct relative to the base body.

Depending on the attachment means used to fix the outlet duct to the base body, the material used for the base body and the material used for the outlet duct can be chosen to be mechanically and / or chemically compatible with each other or no. Thus, if said introduced portion is mechanically joined to the base body, the material used for the base body and the material used for the outlet duct can be chosen to be mechanically compatible with each other, but not necessarily chemically compatible with each other. Alternatively, if said introduced portion is welded, chemically bonded, and / or heat sealed to the base body, the material used for the base body and the material used for the outlet duct can be chosen to be chemically compatible with each other, but not necessarily mechanically compatible with each other.

In the context of the invention, the expression “chemically compatible” refers to a material whose chemical properties, in particular of chemical reactivity, are compatible with the chemical properties, in particular of chemical reactivity, of another material, ie. that is, whose chemical properties do not alter the chemical properties of this other material.

In the context of the invention, the expression “mechanically compatible” relates to a material whose physical properties, in particular mechanical, are compatible with the physical properties, in particular mechanical, of another material, that is to say say whose physical properties do not alter the physical properties of that other material.

Thus, a polymer material recycled from the base body can be mechanically and / or chemically compatible with a polymer material or a metal from the outlet duct. For example, from Recycled polypropylene (PP) used to make at least part of the base body may be mechanically and / or chemically compatible with polyethylene (PE), polypropylene (PP) or aluminum used to make the outlet duct. Likewise, a recycled non-polymeric material from the base body may be mechanically and / or chemically compatible with a polymeric material or a metal from the outlet duct. For example, a recycled polymeric material used to make at least part of the base body may be mechanically and / or chemically compatible with the polyoxymethylene (POM), polybutylene terephthalate (PBT), or the (stainless) steel used. to make the outlet duct.

According to an advantageous embodiment, a minimum longitudinal distance between a first point, said first point being a point of the connection hole on the external surface of the finger cot, and a second point, said second point being a point of the outlet opening on the outer surface of the base body, is less than 12mm, preferably less than 10mm, more preferably less than 8mm.

In this way, an additional constraint is added to the modeling of the base body which ensures the use of an outlet duct whose dimensions are reduced, and by the same whose volume of material used is economically advantageous. For example, due to the presence of said convex wall, the outlet opening in the convex wall can be brought closer to the axis of the valve, and the longitudinal dimension of the outlet duct can be minimized.

According to an advantageous embodiment, the second end of the outlet duct is floating relative to the outlet opening.

In this way, there are fewer connection elements to be made between the outlet duct and the base body, which requires less material and therefore lowers production costs.

According to an exemplary embodiment, the base body comprises a lower edge and an upper edge. According to a preferred embodiment, the base body comprises a lower part. Said lower part of the base body forms a substantially cylindrical lower cavity and delimited by the lower edge of the base body and by a lower end of the convex wall.

According to an exemplary embodiment, a height of said lower cavity of the base body is between 15 mm and 25 mm. The height of the lower cavity of the base body is defined in a direction parallel to the axis of the valve, from the lower edge of the base body to the lower end of the convex wall. In addition to said lower base body cavity, an upper base body cavity can be defined, which is formed by an upper part of the base body. Said upper cavity is delimited by the lower end of the convex wall and by the upper edge of the base body.

According to an exemplary embodiment, a height of said upper cavity of the base body is between 15 mm and 35 mm. The height of the upper cavity of the base body is set in a direction parallel to the axis of the valve, from the lower end of the convex wall to the apex of the upper edge of the base body.

According to a preferred embodiment, the outlet duct is arranged substantially entirely in the upper cavity of the base body. In other words, preferably the outlet duct does not extend beyond the limits defined for the upper base body cavity.

According to an exemplary embodiment, the outlet duct is divided between a first substantially rectilinear section and a second section inclined relative to the first. The first section begins at the first end and ends at the junction with the second section. The second section begins at the junction with the first section and ends at the second end. Preferably, the first section is substantially parallel to the axis of the valve.

According to a preferred embodiment, a hooking portion of the outlet duct, in the hooked state, is visible from the outside of the diffuser, preferably at the level of the finger cot, and has a shape and / or a color recognizable for serve as a means of identification by G user.

Thus, the hooking portion has the dual function of identifier and hooking means. The shape and / or color of the hanging portion may indicate a type of product, an origin of the product, precautions for using the product, packaging of the product, etc. Since the material used for the base body is a recycled material, we can for example color the outlet duct in green so that the hooking portion forms a green dot on the finger cot. A manufacturer will thus be able to communicate to his customers on his strategic desire to be part of a sustainable development policy.

According to a second aspect of the invention, there is provided a base body for use in a diffuser according to any one of the preceding embodiments. According to a third aspect of the invention, there is provided an outlet duct for use in a diffuser according to any one of the preceding embodiments.

According to a fourth aspect of the invention, there is provided a use of a pressurized container diffuser according to any of the preceding embodiments for dispensing food, cosmetic, or medical products.

BRIEF DESCRIPTION OF THE FIGURES

These and other aspects of the present invention will now be described in more detail, with reference to the accompanying drawings showing exemplary embodiments of the invention. Like numbers refer to like features in all drawings.

Figures IA and IB show an exploded perspective view and a perspective view of a longitudinal section, respectively, of the diffuser, the pressure vessel valve and the pressure vessel according to one embodiment of the invention;

Figures 2A and 2B illustrate a longitudinal sectional view of the diffuser and an enlargement, respectively, according to the embodiment of Figures IA and IB;

Figure 3 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention;

Figure 4 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention; and

Figure 5 illustrates a longitudinal sectional view of the diffuser according to another embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION

Figures IA and IB show an exploded perspective view and a perspective view in longitudinal section, respectively, of the diffuser, the pressure vessel valve and the pressure vessel according to an exemplary embodiment of the invention.

The invention relates to a diffuser 100 for a pressure vessel 20, in particular for aerosol generators, foam generators, systems for dispensing gels, creams, pasty or liquid products, etc. The diffuser 100 is intended to actuate the valve 30 of the container in order to withdraw at least part of the contents of the pressurized container 20 and to dispense it, for example, in the form of an aerosol or a foam. The pressure vessels 20 consist of generally of a housing 21 provided with a neck closed by a valve 30 mounted on a valve cup 35. It happens that the valve cup 35 is fixed to the housing 21 by means of a dome 22. When the valve 30 is of the male type, a nozzle 31, or stem, protrudes from the valve 30.

The diffuser 100 includes a base body 110 and an outlet duct 120. The base body 110 may be provided with a cavity formed by an outer wall 111 of the base body 110 or arranged in a substantially solid body. The outlet duct 120 can be housed entirely or partially in the cavity formed by the external wall 111. The external wall 111 can comprise concave and / or convex parts. Thus, the base body 110 can form a cavity which may include a concave wall 118 and a convex wall 117 forming a recess of the cavity. In the context of the invention, the adjectives “concave” and “convex” refer to the interior of the base body 110. In other words, these adjectives relate to an observer located in the cavity of the base body. 110.

The pressure vessels 20 generally have a cylindrical end on which the base body 110 will be fixed. The nozzle 31 of the valve 30 protrudes from this end and is centered relative to this end. The nozzle 31, the main body of the valve 30, and the cylindrical end of the pressure vessel 20 are aligned along an axis A. To cooperate with the cylindrical end of the vessel, a lower part of the outer wall 111 of the pressure body base 110 may have rotational symmetry around axis A in the state attached to container 20.

The base body 110 may be provided with a fixing ring 112 allowing it to be attached either directly to the pressure vessel 20, in particular to the housing 21 or the valve 30, or by means of a ferrule. This fixing ring 112 may be provided with fixing means over the entire periphery of the fixing ring or distributed regularly. These fixing means may be intended to cooperate with complementary fixing means produced on the housing 21 or the valve 30 of the pressure vessel 20, or on the ferrule 23. In particular, the series of gadroons 112 distributed regularly in Figures IB or 2. A can snap behind a rolled edge 24 at the interface between the housing 21 and the valve cup 35 or between the housing 21 and the dome 22 to which the valve cup 35 is fixed. Other fastening means can be considered, such as a continuous rib, a thread for screwing, an extra thickness of material for welding, glue for gluing, etc.

The wall 111 of the base body can be pierced with a finger cot opening 113 in which the finger cot 130 sits. The finger cot 130 can be fixed to the rest of the base body 110 by a tab 131 which acts as a hinge so that when 'pressure is exerted on the finger cot 130 towards inside the base body 110, therefore towards the valve 30 when the diffuser 100 is fixed to the pressure vessel 20, the finger cot 130 pivots about an axis transversely passing through the tongue 131. In the example of Figures 1A and 1B, the fingertip 130 and the corresponding aperture of the fingertip 113 are placed towards the top of the base body 110. In other embodiments, the fingertip 130 may be separated from the base body 110 and be pushed in either in one movement. vertical translation, or in a tilting movement around a support.

An outlet opening 114 can be made in the wall 111 of the base body 110. The outlet opening 114 can be configured so that the product withdrawn from the pressure vessel which exits the outlet duct 120 passes through it. The adjectives "front" and "rear" refer to this exit of the product through the outlet opening 114, the product exiting through a front part of the diffuser 100 and the rear part being opposite to it. In the example of Figures IA and IB, the finger cot 130 is secured to the rest of the base body 110 by the tab 131 located at the rear of the finger cot 130. In another exemplary embodiment, the finger cot can be secured by the tab on the front of the finger cot, see Figure 4.

The base body 110 may include a connection hole 140. The connection hole 140 may pass through between an outer surface of the base body 110 and an inner surface of the base body 110, and be configured to facilitate attachment of the conduit. outlet 120 so that the outlet duct 120 can be hooked to the base body 110. The outlet duct 120 can be hooked to the base body 110 by joining them mechanically, by gluing, welding, and / or heat sealing. In the example of Figures IA and IB, the connection hole 140 is located in the longitudinal section plane of the base body 110, on a front part of the finger cot 130.

In the embodiment of Figures 1A and 1B, the material used for the outlet duct 120 is a different material from the material used for the base body 110. In other words, the material used for the outlet duct 120 and the material used for the base body part 110 are of different compositions. By "composition" is meant chemical composition in the context of the invention. For example, due to the possible presence of the aforementioned impurities in the recycled material, the recycled material of the part of the base body 110 is of different composition from the material used for the outlet duct 120.

The material used for the base body part 110 may exhibit a total migration rate of constituents of said material to a reference product which is greater than the total migration rate of constituents from the material used for the outlet conduit 120 to the product of. reference. For example, the total migration rate to the reference product of the constituents of the material used for the outlet duct 120 may be less than 10 mg of said constituents per 1 dm ² of surface of said material. A total migration limit of 60 mg / kg may apply for all materials of outlet duct 120 in contact with food products.

The material used for the outlet duct 120 may be a material which is inert with respect to the product contained in the pressure vessel 20. In the context of the invention, the adjective “inert” relates to a material of the duct. outlet 120 whose total migration rate of constituents towards the reference product or towards the product contained in the pressure vessel 20 is not greater than a certain safety limit, for example greater than the total migration limit of 60 mg / kg mentioned above. In other words, it will be a material of the outlet duct 120 which will not alter, or alter but negligibly, the chemical composition of the product, and therefore its quality.

The material used for the outlet duct 120 can be virgin material. In the context of the invention, the adjective "virgin" refers to material which has not yet been used. Thus, the outlet duct 120 can be of first use. For example, the material of the outlet duct 120 may be first-time use.

The material used for the outlet duct 120 may be a material suitable for contact with food. In the context of the invention, the expression “suitable for food contact” refers to a material which does not alter the food quality of a food product contained in the pressure vessel 20, thus ensuring the safety of the consumer of said product. foodstuff.

The material used for the outlet conduit 120 may include any of the following: a polymeric material, a metal, or a combination of the above materials. The polymeric material can include any of the following polymers: polyethylene (PE), polypropylene (PP), polyoxymethylene (POM), polybutylene terephthalate (PB T), polyamide (PA), or a combination of the above polymers. According to another exemplary embodiment, the metal can comprise aluminum, steel, in particular stainless steel, or an alloy of the two aforementioned metals.

The material used for the base body part 110 will not need to fulfill this condition, but can be chosen for its mechanical properties or its environmental and / or economic value. For example, if the diffuser 100 is intended for a food product, the material of the outlet duct 120 may be suitable for contact with food, while that of the part of the base body 110, not being in contact with the product, does not need to be. According to other examples, the diffuser 100 can be intended for a cosmetic, medical or household product. The material of the outlet duct 120 may be inert, while the recycled material of the part of the base body 110, not being in contact with the product, does not need to be.

The material used for the base body part 110 is recycled material. In the context of the invention, as opposed to the adjective "virgin", the adjective "recycled" refers to a material of a used object which is recovered and reintroduced into the production cycle from which it originated. In other words, the recycled base body 110 is waste resulting from a previous use that has undergone a recycling operation for reintroduction into the production cycle from which it originated. The recycling operation in question may include operations, or transformations, physical and / or chemical in order to restore the ability of the base body 110 to be reintroduced into the consumer market. In other words, the recycling of a used object is a method of treating the materials of this object which makes it possible to reintroduce, into the production cycle of the base body 110, materials which made up a similar object or not arrived in. end of life or manufacturing residues. Depending on the quality of the recycling carried out, impurities may remain within the recycled material.

The material used for the base body part 110 may include any of the following: a polymeric material, a non-polymeric material, or a combination of the above materials. The polymeric material can include any of the following polymers: polyethylene (PE), polypropylene (PP), polylactic acid (PL A), polyhydroxyalkanoate (PH A), polybutylene succinate (PB S), or a combination of the above polymers.

Depending on the attachment means used to fix the outlet duct 120 to the base body 110, the material used for the base body 110 and the material used for the outlet duct 120 may be chosen to be mechanically compatible and / or chemically between them or not (see Figures 2A-5).

In the context of the invention, the expression “mechanically compatible” relates to a material whose physical properties, in particular mechanical properties, are compatible with the physical properties, in particular mechanical properties, of another material, that is to say, the physical properties of which do not alter the physical properties of this other material.

Thus, a recycled polymeric material from the base body 110 may be mechanically and / or chemically compatible with a polymeric material or a metal from the outlet duct 120. For example, recycled polypropylene (PP) used to make at least part of the body. base 110 may be mechanically and / or chemically compatible with polyethylene (PE), polypropylene (PP), or aluminum used to make outlet conduit 120. Likewise, a non-polymer material recycled from the base body 110 may be mechanically and / or chemically compatible with a polymeric material or a metal of the outlet duct 120. For example, a recycled polymeric material used to make at least part of the base body 110 may be compatible mechanically and / or chemically with polyoxymethylene (POM), polybutylene terephthalate (PBT), or steel (stainless) used to fabricate the outlet duct 120.

It should be noted that at least part of the base body 110 is made from a recycled material. According to the embodiment of Figures IA and IB, the entire base body 110 is made from the recycled material. Thus, both the finger cot 130, the convex wall 117 and the concave wall 118 of the base body 110 are made from the recycled material. According to an exemplary embodiment vane, only said part can be made from the recycled material. According to a first example, the finger cot 130 can be made from recycled material. According to a second example, the convex wall 117 can be made from the recycled material. According to a third example, the concave wall can be made from recycled material.

A more detailed description of the outlet duct 120, of its positioning relative to the base body 110, and of its attachment for hooking it to the base body 110 can be read below with reference to Figures 2A and 2B.

Figures 2A and 2B illustrate a longitudinal sectional view of the diffuser and an enlargement, respectively, according to the exemplary embodiment of Figures IA and IB. At least part of the base body 110 of the diffuser 100 is made from a recycled material. The outlet duct 120 of the diffuser 100 is for its part made of a material different from the recycled material.

The outlet duct 120 placed in the base body 110 has a passage 123 between a first end 121 and a second end 122. Fa first end 121 is configured to cooperate with the valve of the pressure vessel. The second end 122 is configured for the release of the product contained in the pressure vessel. In the hooked state of the outlet duct 120 to the base body 110, the second end 122 is oriented to correspond to the outlet opening 114. The second end 122 can be fixed or floating with respect to the opening of the outlet. output 114, floating in the present example.

The outlet duct 120 has at the first end 121 means for actuating the valve. If the valve is a female-type valve, the first end 121 may include a rod intended to penetrate the valve to actuate it. If the valve is of the male type, the first end 121 can be flared to facilitate the introduction of the stem when mounting the diffuser 100 on the pressure vessel.

The second end 122 of the outlet duct opens outwards and may be fitted with a nozzle to improve the quality of the aerosol. If the product does not exit in alignment with the valve, the outlet duct 120 may be divided between at least a first substantially straight section 124 and a second section 125 inclined relative to the first. In the present example, the first section 124 begins at the first end 121 and ends at the junction with the second section 125. The second section 125 begins at the junction with the first section 124 and ends at the second end 122. L 'at least a first section 124 and the second section 125 form the passage 123 between the first end 121 and the second end 122.

To allow the installation of a nozzle, the second section 125 can be provided on the side of the second end 122 with a nozzle housing 126. In the example of Figures 2A and 2B, the second section 125 consists of 'an internal duct 125a forming a portion of the passage 123 and which is surrounded by a cylindrical wall 125b at least on the side of the second end 122. The annular space between the internal duct 125a and the cylindrical wall 125b constitutes the nozzle housing 126 If the diffuser 100 is not fitted with a nozzle, it is possible to dispense with the cylindrical wall 125b.

To hook the outlet duct 120 to the base body 110, the outlet duct 120 may include a hooking portion 150. In the example of Figures 2A and 2B, the hooking portion 150 is joined to the top of the first section. 124 of the outlet duct and extends, in the hooked state from the outlet duct 120 to the base body 110, in the direction of the front of the finger cot 130, coaxially with the axis A. According to an embodiment blade, the hooking portion 150 can extend at a distance from the axis A, parallel to the axis A. According to yet another embodiment blade, the hooking portion 150 can extend obliquely with respect to axis A. To hook the outlet duct 120 to the base body 110 in the embodiment of Figures 2A and 2B, the hooking portion 150 is provided with a part configured to cooperate with a complementary part made in the finger cot 130. The portion hooking 150 is intended to be snapped into the connection hole 140 to mechanically join the outlet duct 120 to the base body 110.

The hooking portion 150 can include a hooking pin consisting of a substantially cylindrical rod 152 which can be fixed by its first end to the outlet duct 120 and comprising at its second end a cap 153 of cross section greater than the cross section. of the rod 152.

The junction between the rod 152 and the rest of the outlet duct 120 can constitute a shoulder 151 at a distance from the cap 153. In the present case, the hooking pin 151, 152, 153 comprises a cylinder in which a groove is made. annular. The top of the cylinder corresponds to the cap 153. The annular groove forms the rod 152. The part of the cylinder opposite the cap 153 corresponds to the shoulder 151. The hooking portion 150 can be joined to the outlet duct 120 by a hollow compartment 127 In the present example, the hollow compartment 127 is parallelepiped in shape to have a simple and structurally rigid shape. The hollow compartment 127 can act as the shoulder 151.

To prevent the outlet duct 120 from pivoting around the hooking portion 150 at the risk that the second end 122 of the outlet duct is no longer aligned with the outlet opening 114, anti-rotation means can be provided. In the present example, these anti-rotation means consist of two guide tabs 160. These guide tabs 160 are located on the internal surface of the wall 111 of the base body and extend on either side of the second. section 125 of the outlet duct from the internal surface of the finger cot and in the direction of the first end 121 of the outlet duct. The two guide tabs 160 are placed opposite one another preferably symmetrically with respect to the longitudinal plane parallel to the axis A and passing through the center of the connection hole 140 and of the outlet opening. 114. They can be spaced from one another so as to enclose, or at least surround with little play, the outlet duct 120. To facilitate the positioning of the outlet duct 120, the distance between the two guide tabs 160 can go by widening slightly in the direction of the first end 121 of the outlet duct, along the axis A. In another preferred embodiment, the hooking post 151, 152, 153 may comprise an asymmetric or blocky cross section. The connection hole 140 may include an asymmetric or polyhedral cross section corresponding to the asymmetric or polyhedral cross section of the hooking post 151, 152, 153. The asymmetric or polyhedral cross sections of the hanging post 151, 152, 153 and the connection hole 140 can be chosen such that, in the hooked state, the rotation of the outlet duct 120 relative to the base body 110 is blocked.

Depending on the length of the second section 125 of the outlet duct, provision may be made to bring the outlet opening 114 towards the axis A with a front portion comprising the outlet opening 114 formed by a convex surface 117 By bringing the outlet opening 114 closer together in the convex surface 117, the longitudinal dimension l between the axis A and the end of the second section 125 can be made less than 15 mm, preferably less than 12.5 mm, more preferably less than 10 mm. To make the outlet duct 120 even more compact, the height h of the first section 124 along the axis A between the first end 121 and the top of the passage 123 can be made less than 15 mm, preferably less than 12.5 mm, more preferably less than 10 mm.

The connection hole 140 can be made in the base body 110 to facilitate the hooking of the outlet duct 120 to the base body 110. In the present example, the connection hole 140 is located on the front half of the finger cot 120 and is traversing between an inner surface and an outer surface of the finger cot 130. The minimum longitudinal distance d between a first point, said first point being a point of the connection hole 140 on the outer surface of the finger cot 130, and a second point, said second point being a point of the outlet opening 114 on the outer surface of the base body 110, may be less than 12mm, preferably less than 10mm, more preferably less than 8mm.

The above constraints which are imposed on the dimensions l, h and d of the outlet duct 120 have the effect of adding an additional constraint to the modeling of the base body 110 which ensures the use of an outlet duct 120 of which the dimensions are reduced, and thereby the volume of material used is economically advantageous. Indeed, the outlet duct 120 can be manufactured in an inert and / or virgin material and / or suitable for food contact, the production costs of the outlet duct 120 are greater than those of the base body 110, the latter being made from recycled material. Further, due to the presence of said convex wall 117, the outlet opening 114 made in the convex wall 117 can be brought closer to the axis A of the valve, and the longitudinal dimension of the outlet duct 120 can be minimized. , this which contributes to the saving in volume of inert and / or virgin material and / or suitable for food contact used.

The connection hole 140 can be configured to receive and retain the hooking pin 151, 152, 153. The connection hole 140 can be defined by a first portion 141 and a second portion 142. The first portion 141 can be a portion internal opening on the internal surface of the base body 110, on the internal surface of the finger cot 130 in Figures 2A and 2B. The second portion 142 may be an external portion opening onto the external surface of the base body 110, on the external surface of the finger cot 130 in FIGS. 2A and 2B.

The first portion 141 of the connection hole can be sized to receive the rod 152 of the hooking pin. The second portion 142 of the connection hole can be larger and be sized to receive the cap 153 of the hooking pin. Additionally, the second portion 142 and the cap 153 may be configured so that the surface of the end of the cap 153 is flush with the outer surface of the base body 110, flush with the outer surface of the finger cot 130 in Figures 2A. and 2B. Thus, in the present example, the surface of the end of the cap 153 is not perpendicular to the axis of the rod 151, but slightly inclined to follow the continuity of the external surface of the finger cot 130 surrounding the connection hole 140. .

In another preferred embodiment, the cap 153 may protrude or be recessed relative to the outer surface of the finger cot 130 surrounding the connection hole 140. Alternatively or in addition, the cap 153 and the connection hole 140 may have cross sections of different shapes and the cap 153 can be introduced through the connection hole by pivoting the outlet duct 120 relative to its final position in the hooked state.

During fixing, the outlet duct 120 can be inserted into the cavity formed by the outer wall 111 of the base body 110. The second end 122 of the outlet duct can be oriented towards the outlet opening 114. The hooking portion 150 is introduced into the connection hole 140. The cap 153 of the hooking pin can be pushed forcibly through the connection hole 140. In the present example, the cap 153 forcibly passes through the first one. portion 141 of the connection hole 140 until it opens into the second portion 142, the cross section of which is sufficient to receive it. In this position, the rod 152 of the hooking pin is placed in the first portion 141 of the connection hole, and the shoulder 151 can be located near, or in contact, with the internal surface of the finger cot 130. At the same time, the second section 125 of the outlet duct 120 can be inserted between the guide tabs 160. The guide tabs 160 can thus guide the outlet duct so that the second end 122 of the outlet duct and the outlet opening 114 of the base body is corresponding. The hooking pin 151, 152, 153 fixed through the connection hole 140 can prevent the translation of the outlet duct 120 relative to the finger cot 130 along the axis A. The guide tabs 160 can prevent the rotation of the duct from outlet 120 with respect to the base body 110 around the axis A.

In another preferred embodiment, the outer surface of the finger cot 130 is provided with reliefs to allow better friction with a user's finger. The cap 153 of the fastening post can be configured by its shape and / or its size to form part of the reliefs. For example, the reliefs are formed by indentations in the outer surface of the finger cot and the cap 153 is sized to cooperate with the connection hole 140 to form a substantially similar indentation.

In addition, a portion of the hooking pin 151, 152, 153, in the hooked state, may be visible from the outside of the diffuser 100, and may have a recognizable shape and / or color to serve as a means of user identification. In this way, the attachment post 151, 152, 153 can have the dual function of identifier and attachment means. The shape and / or color of the attachment post may indicate a type of product, an origin of the product, precautions for using the product, packaging of the product, etc.

In accordance with the type of mechanical hooking means used to secure the outlet duct 120 to the base body 110 in the embodiment of Figures 2A and 2B, the material used for the base body 110 and the material used for the outlet duct 120 may be chosen to be mechanically compatible with one another, but not necessarily chemically compatible. In particular, in the embodiment of Figures 2A and 2B, the attachment portion 150 is made of a material which is mechanically compatible, but not necessarily chemically compatible, with the recycled material of the finger cot 130 in which the connection hole 140 is convenient. For example, a recycled polymeric material from the finger cot 130 may be mechanically and / or chemically compatible with a polymeric material from the hooking portion 150. According to the embodiment of Figures 2A and 2B, the entire base body 110 is manufactured. in recycled material. Thus, both the finger cot 130, the convex wall 117 and the concave wall 118 of the base body 110 are made from the recycled material. Figure 3 illustrates a longitudinal sectional view of the diffuser according to another exemplary embodiment of the invention. The diffuser 300 includes a base body 310 and an outlet duct 320. At least a portion of the base body 310 is made from a recycled material. The outlet duct 320 is for its part made of a material different from the recycled material.

The base body 310 may include an outer wall 311. The outer wall 311 may form a cavity, and the outlet duct 320 may be fully or partially housed in the cavity formed by the outer wall 311, fully in the present example. The outer wall 311 can include concave and / or convex parts.

Diffuser 300 is a pressure vessel diffuser. The pressure vessel can include a cylindrical end. To cooperate with the cylindrical end of the container, a lower part of the outer wall 311 of the base body may have rotational symmetry about the axis A in the state attached to the container. The base body 310 can be configured to be fixed to the pressure vessel via a fixing ring 312. In the present example, the fixing ring 312 is provided with a series of gadroons distributed evenly around the periphery. an inner surface of the outer wall 311 of the base body. The retaining ring 312 may be adapted to snap behind a rolled edge of the upper end of the pressure vessel.

The base body 310 may have a finger cot 330 intended to be depressed by the user to actuate a valve of the pressure vessel. The outer wall 311 of the base body can be pierced with a finger cot opening in which the finger cot 330 sits. The finger cot 330 can be attached to the rest of the base body 310 by a tab 331 at the rear of the finger cot 330 which serves as a hinge so that the finger cot 330 pivots about an axis transversely passing through the tongue 331.

An outlet opening 314 can be made in the outer wall 311 of the base body 310. The outlet opening 314 can be configured so that the product withdrawn from the pressure vessel which exits the outlet duct 320 passes through it. In the embodiment of Figure 3, the finger cot opening is joined to the outlet opening 314 at the front of the base body 310. In another embodiment, an arch may separate the outlet opening. of the finger cot opening so that the structural strength of the top of the base body is enhanced.

The base body 310 includes a connection hole 340a, 340b. In the present example, there are two connection holes 340a, 340b provided to the finger cot 330. The two connection holes 340a, 340b may be located towards the front of the fingertip 330 in the longitudinal plane of the diffuser passing through the axis A. The two connection holes 340a, 340b may pass through between an outer surface of the fingertip 330 and an inner surface of the fingertip 330 and may extend substantially parallel to the axis A. The connection holes 340a, 340b may be defined by a cylindrical wall which extends away from an internal surface of the finger cot 330 in a direction substantially parallel to the axis A. Those skilled in the art will understand that multiple variations of lead holes 340a, 340b can be implemented by varying, for example, the number, dimensions, positioning, or profile of the lead holes.

The connection holes 340a, 340b can be configured to cooperate with a portion of the outlet duct 320. In the present example, the outlet duct 320 can comprise two hooking portions 350a, 350b intended to be introduced into the connection holes. 340, 340b corresponding so that the outlet duct 320 is hooked to the base body. The outlet duct 320 can be retained by the two hooking portions 350a, 350b introduced into the corresponding connection holes 340a, 340b by fitting, gluing, heat sealing, welding, etc.

The outlet duct 320 placed in the base body 310 has a passage 323 between a first end 321 and a second end 322. The first end 321 is configured to cooperate with the valve of the pressure vessel. The second end 322 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 320 to the base body 310, the second end 322 is oriented to correspond to the outlet opening 314. The second end 322 may be floating relative to the outlet opening 314. The outlet duct 320 can be divided between a first substantially rectilinear section 324 and a second section 325 inclined relative to the first. The first section 124 can start at the first end 321 and end at the junction with the second section 325. The second section 325 can start at the junction with the first section 324 and end at the second end 322. The first section 324 and the second section 325 can form the passage 323 between the first end 321 and the second end 322.

The two hooking portions 350a, 350b of the outlet duct 320 can extend away from the second section 325 of the outlet duct, substantially parallel to the axis A, in the direction of the finger cot 330. When fixing, the outlet duct 320 can be introduced into the cavity formed by the wall 311 of the base body. The second end 322 of the outlet duct can be oriented in the direction of the outlet opening 314. The hooking portions 350a, 350b intended to hook the outlet duct 320 to the base body can be introduced into the corresponding connection holes 340a, 340b before being fixed to each other by gluing, interlocking, heat sealing, soldering. Thanks to the two connection holes 340a, 340b cooperating with the two hooking portions 350a, 350b of the outlet duct, the rotation of the outlet duct 320 with respect to the base body 310 can be blocked. Those skilled in the art will understand that this rotation can be prevented alternately by modifying the number and / or the shape of the portions introduced and of the corresponding connection holes.

Depending on the attachment means used to fix the outlet duct 320 to the base body 310, the material used for the base body 310 and the material used for the outlet duct 320 may be chosen to be mechanically compatible and / or chemically between them or not. In particular, in the embodiment of Figure 3 the two hooking portions 350a, 350b are made of a material which can be mechanically and / or chemically compatible with the recycled material of the finger cot 330 in which the connection holes 340a, 340b are practiced. For example, a recycled polymer material from the finger cot 330 may be mechanically and / or chemically compatible with a polymer material from the attachment portions 350a, 350b. According to the embodiment of Figure 3, the entire base body 310 is made from the recycled material. Thus, both the finger cot 330 and the outer wall 311 of the base body 310 are made from the recycled material.

Figure 4 illustrates a longitudinal sectional view of the diffuser according to another exemplary embodiment of the invention. Diffuser 400 includes a base body 410 and an outlet duct 420. At least part of the base body 410 is made from a recycled material. The outlet duct 420 is for its part made of a material different from the recycled material.

The base body 410 may include an outer wall 411. The outer wall 411 may include concave portions forming a cavity, and the outlet duct 420 may be housed entirely in the cavity formed by the outer wall 411. To cooperate with one end cylindrical of a pressure vessel provided with a valve, a lower part of the outer wall 411 of the base body 410 may exhibit rotational symmetry about an axis A in the state attached to the vessel. The base body 410 may be configured to be attached to the pressure vessel via a securing ring 412. In the present example, the securing ring 412 is provided with a continuous rib on the periphery of a. inner surface of the outer wall 411 of the base body such that the continuous rib can snap behind a rolled edge of the upper end of the pressure vessel. The base body 410 may have a finger cot 430 intended to be pushed in by the user, said finger cot 430 being formed by a finger cot opening 413 in the outer wall 411 of the base body. The finger cot 430 can be fixed to the rest of the base body 410 by a tab 431 at the front of the finger cot 430 which serves as a hinge.

An outlet opening 414 can be made in the outer wall 411 of the base body 410. The outlet opening 414 can be configured so that the product withdrawn from the pressure vessel which exits the outlet duct 420 passes through it.

The base body 410 includes a connection hole 440. In the present example, there is a connection hole 440 passing through the finger cot 430. The connection hole 440 may be located rearward of the finger cot 430 in the longitudinal plane of the finger cot. diffuser passing through the axis A. The connection hole 440 may pass through between an external surface of the finger cot 430 and an internal surface of the finger cot 430 and extend substantially towards the center of the base body 410. The connection hole 440 can be configured to facilitate attachment of outlet duct 420 to base body 410.

The outlet duct 420 placed in the base body 410 has a passage 423 between a first end 421 and a second end 422. The first end 421 is configured to cooperate with the valve of the pressure vessel. The second end 422 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 420 to the base body 410, the second end 422 is oriented to correspond to the outlet opening 414. The second end 422 can be floating relative to the outlet opening 414. .

The outlet duct 420 can be divided between a first substantially rectilinear section 424 and a second section 425 inclined with respect to the first. The first section 424 and the second section 425 can form the passage 423 between the first end 421 and the second end 422. To allow the installation of a nozzle, the second section 425 can be provided on the side of the second end 422 of a nozzle housing 426, said nozzle housing 426 being able to be formed by an annular space between an inner duct surrounded by a cylindrical wall of the second section 425.

To hook the outlet duct 420 to the base body 410 in the embodiment of Figure 4, the outlet duct 420 comprises a hooking portion 450. The hooking portion 450 can be substantially cylindrical and extend in direction of the rear of the finger cot 430, in the hooked state, from the top of the first portion 424 of the exit. The hooking portion 450 may be provided with a part configured to cooperate with a part or a complementary element such that the outlet duct 420 is hooked to the base body 410.

The hooking portion 450 can include a fixing hole 451 configured to cooperate with a fixing means 455. The fixing hole 451 can be blind or through, smooth or threaded. The fastening means 455 may be a screw, bolt, rivet, etc. During fixing, the outlet duct 420 can be introduced into the cavity formed by the outer wall 411 of the base body. The second end 422 of the outlet duct may be oriented in the direction of the outlet opening 414. The second section 425 of the outlet duct 420 can be inserted between guide tabs 460. The guide tabs 460 can thus guide the conduit. outlet 420 so that the second end 422 of the outlet duct and the outlet opening 414 of the base body are corresponding.

These guide tabs 460 can be located on the internal surface of the external wall 411 of the base body and extend on either side of the outlet opening 414 of the outlet duct and in the direction of the axis A so as to grip the second section 425 of the outlet duct. The two guide tabs 460 are placed opposite each other, preferably symmetrically with respect to the longitudinal plane parallel to the axis A and passing through the center of the connection hole 440 and of the outlet opening. 414.

The fixing hole 451 can be aligned with the connection hole 440. In this way the fixing means 455 can be inserted through the connection hole 440 to cooperate with the fixing hole 455 and hook the outlet duct 420 to the body. base 410. The connection hole 440 can be configured so that, in the hooked state, the fixing means 455 is flush with the external surface of the finger cot 430 surrounding the connection hole 440.

In accordance with the type of mechanical hooking means used to secure the outlet duct 320 to the base body 310 in the embodiment of Figure 4, the material used for the base body 310 and the material used for the duct output 320 may be chosen to be mechanically compatible with each other, but not necessarily chemically compatible. In particular, in the embodiment of FIG. 4, the attachment portion 450 is made of a material which can be mechanically and / or chemically compatible with the material, recycled or not, of the fixing means 455. For example, a metal recycled from the attachment means 455 may be mechanically and / or chemically compatible with a metal of the attachment portion 450. According to the embodiment of Figure 4, the entire base body 410 is manufactured in the recycled material. Thus, both the finger cot 430 and the outer wall 411 of the base body 410 are made from the recycled material.

Figure 5 illustrates a longitudinal sectional view of the diffuser according to another exemplary embodiment of the invention. The diffuser 500 includes a base body 510 and an outlet conduit 520. At least a portion of the base body 510 is made from a recycled material. The outlet duct 520 is for its part made of a material different from the recycled material.

The base body 510 may include an outer wall 511. The outer wall 511 may include concave portions forming a cavity, and the outlet duct 520 may be housed entirely in the cavity formed by the outer wall 511. In the present example, the outer wall 511 is substantially cylindrical. To cooperate with a cylindrical end of a pressure vessel provided with a valve, a lower portion of the outer wall 511 of the base body may exhibit rotational symmetry about an axis A in the state attached to the vessel. The base body 510 can be configured to be fixed to the pressure vessel via a fixing ring 512. In the present example, the fixing ring 512 is provided with a series of gadroons distributed evenly around the periphery. from an inner surface of the outer wall 511 of the base body such that the series of gadroons can snap behind a rolled edge of the upper end of the pressure vessel.

The base body 510 may have a finger cot 530 intended to be pushed in by the user, said finger cot 530 being formed by a finger cot opening 513 in the outer wall 511 of the base body. The finger cot 530 can be attached to the rest of the base body 510 by a tab 531 on the back of the finger cot 530 which acts as a hinge.

An outlet opening 514 can be made in the outer wall 511 of the base body. The outlet opening 514 can be configured so that product withdrawn from the pressure vessel exiting the outlet duct 520 passes through it.

The base body 510 includes a connection hole 540. In the present example, there is a connection hole 540 passing through the outer wall 511 of the base body below the outlet opening 514 remote from the opening of the base body. outlet 514. The connection hole 540 may be located in the longitudinal plane of the diffuser passing through the axis A. The connection hole 540 may be through between an outer surface and an inner surface of the outer wall 511 of the base body and extend substantially parallel to the axis of the outlet opening 514. The outlet duct 520 placed in the base body 510 has a passage 523 between a first end 521 and a second end 522. The first end 521 is configured to cooperate with the valve of the pressure vessel. The second end 522 is configured for the outlet of the product contained in the pressure vessel. In the hooked state of the outlet duct 520 to the base body 510, the second end 522 is oriented to correspond to the outlet opening 514. The second end 522 may have a fixed position relative to the opening of the outlet. exit 514.

The outlet duct 520 can be divided between a first section 524 which is substantially rectilinear and a second section 525a, 525b, 525c, 525d which is substantially perpendicular to the first in a rest position of the finger stand 530. The first section 524 and the second section 525a , 525b, 525c, 525d can form the passage 523 between the first end 521 and the second end 522.

The second section 525a, 525b, 525c, 525d may have a cylindrical overall shape and include, on its outer surface near the junction with the first section 525, a first notch 525d defining a first deformable portion of the second section 525a, 525b, 525c, 525d. The second section 525a, 525b, 525c, 525d can also include a second notch 525c located near the internal surface of the external wall 511 of the base body defining a second deformable potion of the second section 525a, 525b, 525c, 525d. The first notch 525d and the second notch 525c can define a mobile part 525b of the passage 523, said mobile part 525b being able to accompany the vertical movements of the first section 524. The first section 525a, 525b, 525c, 525d can include a fixed part 525a by relative to the outlet opening 514, said fixed part 525a possibly being a part defined between the second notch 525c and the second end 522 of the outlet duct.

To hook the outlet duct 520 to the base body 510 in the embodiment of Figure 5, the outlet duct 520 includes a hooking portion 550. The hooking portion 550 may consist of a plug attached to the part. fixed 525a of the second section of the outlet duct, and extending substantially parallel thereto at a distance. The hooking portion 550 can be configured to be inserted into the connection hole 540 and keep the outlet duct 520 hooked to the base body 510 by interlocking, gluing, heat sealing, soldering, etc. Those skilled in the art will understand that the number, shape, and dimensions of the plug can be varied depending on the desired attachment. The hooking portion 550, in the hooked state of the outlet duct 520 to the base body 510, can maintain the position of the second end 522 of the outlet duct fixed with respect to the opening of the outlet. exit. In addition, the hooking portion 550 can block the rotation of the outlet duct 520 relative to the base body.

The outlet conduit 520 may include an attachment portion 526 for securing the outlet conduit 520 to the finger cot 530. The securement portion 526 may be configured to attach to an attachment 532 provided to the finger cot 530. In the present example, the fixing element 532 is a plug projecting from the internal surface of the finger cot 530 extending substantially vertically towards the top of the first section 524 of the outlet duct. The attachment portion 526, in Figure 5, is a cylindrical wall projecting from the top of the first section 524 of the outlet duct extending substantially vertically towards the internal surface of the finger cot 530. The attachment portion 526 and the element of fixing 532 can be designed to cooperate mechanically and to fix the finger cot 530 to the outlet duct 520 by fitting, gluing, heat sealing, welding.

Preferably, the axes of the fixing element 532, of the fixing portion 526, of the first section 524 of the outlet duct, and of the valve of the pressure vessel are coaxial. User pressure on the finger cot 530 can cause a substantially vertical movement of the first section 524 of the outlet duct and actuation of the pressure vessel valve. The vertical displacement of the first section 524 of the outlet duct is followed by the bending of the deformable sections 525c, 525d of the second section of the outlet duct 520. In the actuated position of the finger cot, the movable part 525b of the second section can be inclined relative to the first section 524 of the outlet duct. Actuation of the valve will cause the product contained in the pressure vessel to exit through the second end 522 of the outlet duct through passage 523 of the outlet duct.

Depending on the attachment means used to fix the outlet duct 520 to the base body 510, the material used for the base body 510 and the material used for the outlet duct 520 may be chosen to be mechanically compatible and / or chemically between them or not. In particular, in the embodiment of Figure 5 the hooking portion 550 is made of a material that can be mechanically and / or chemically compatible with the recycled material of the base body 510 in which the connection hole 540 is made. For example, a recycled polymeric material of the base body 510 may be mechanically and / or chemically compatible with a polymeric material of the hooking portion 550. According to the embodiment of Figure 5, the entire base body 510 is made from recycled material. Thus, both the finger cot 530 and the outer wall 511 of the base body 510 are made from the recycled material. Although the principles of the invention have been set forth above in connection with specific embodiments, it should be understood that this description is given merely by way of example and does not constitute a limitation on the scope of the invention. protection which is determined by the appended claims below.

Claims

1. Diffuser (100) for a pressure vessel (20) provided with a valve (30), in particular for an aerosol generator, which diffuser (100) is provided with:

a base body (110) having a finger cot (130) intended to be pushed in by the user to actuate the valve (30) and having an outlet opening (114) intended for the outlet of a product contained in the pressure vessel (20);

an outlet duct (120) placed in the base body (110), which outlet duct (120) has a first end (121) configured to cooperate with the valve (30) of the pressure vessel (20) and a second end (122) configured for the outlet of the product contained in the pressure vessel (20);

the outlet duct (120) being coupled to the base body (110) such that the second end (122) of the outlet duct (120) is substantially facing the outlet opening (114) of the base body ( 110);

wherein at least a part of the base body (110) is made of a recycled material and the outlet duct (120) is made of a material different from the recycled material.

2. The pressure vessel diffuser of claim 1, wherein the material used for the base body part (110) exhibits a total migration rate of constituents of said material to a reference product which is greater than the total migration rate. of constituents of the material used for the outlet duct (120) to the reference product.

3. Diffuser for a pressure vessel according to claim 2, wherein the total migration rate of the constituents of the material used for the outlet duct (120) to the reference product is less than 10 mg of said constituents per 1 dm ² of surface area. of said material.

4. A pressure vessel diffuser according to any preceding claim, wherein the material used for the outlet duct (120) is virgin material.

5. A diffuser for a pressure vessel according to any one of the preceding claims, in which the material used for the outlet duct (120) is a material suitable for contact with food.

A pressure vessel diffuser according to any preceding claim, wherein the material used for the outlet conduit (120) comprises any of the following: a polymeric material, a metal, or a combination of the materials. above.

7. The pressure vessel diffuser of claim 6, wherein the polymeric material comprises any of the following polymers: polyethylene, polypropylene, polyoxymethylene, polybutylene terephthalate, polyamide, or a combination of the above polymers.

A pressure vessel diffuser according to any preceding claim, wherein the material used for the base body portion (110) comprises any of the following: a polymeric material, a non-polymeric material, or a combination of the above materials.

9. The pressure vessel diffuser of claim 8, wherein the polymeric material comprises any of the following polymers: polyethylene, polypropylene, polylactic acid, polyhydroxyalkanoate, polybutylene succinate, or a combination of the above polymers.

10. A pressure vessel diffuser according to any preceding claim, wherein the entire base body (110) is made from the recycled material.

11. Pressure vessel diffuser according to any one of the preceding claims, wherein the base body (110) is provided with a connection hole (140) in the finger cot (130), such that the outlet (120) can be hooked to the base body (110).

12. A pressure vessel diffuser according to claim 11, wherein a minimum longitudinal distance (d) between a first point, said first point being a point of the connection hole (140), and a second point, said second point being a. point of the outlet opening (114) on an outer surface (111) of the base body (110), is less than 12mm, preferably less than 10mm, more preferably less than 8mm.

13. A pressure vessel diffuser according to any preceding claim, wherein the second end (122) of the outlet conduit (120 is floating relative to the outlet opening (114).

14. Base body (110) for use in a diffuser (100) for a pressure vessel (20) according to any preceding claim.

15. An outlet conduit (120) for use in a diffuser (100) for a pressure vessel (20) according to any preceding claim.

16. Use of a diffuser (100) for a pressure vessel (20) according to any one of claims 1-13 for the distribution of a food, cosmetic, pharmaceutical or medical product.