Pump motor with air intake on the flange

Abstract

The invention relates to a pump motor (10) with a longitudinal axis (X) intended to be fixed to the neck (50) of a container (2) containing a cosmetic product to be dispensed. The pump motor (10) comprises: a pump body (3) intended to be mounted on the neck (50) of the container (2) and including a plate (11) provided with a connection nozzle (14) for a dip tube (4), the connection nozzle (14) being provided with a bottom non-return suction valve (8); an external assembly (1) comprising a base portion (12) made of rigid material intended to be attached to the neck (50) of the container (2), this base portion (12) being extended by a push button (18) made of flexible material actuated by a user. Figure 1

Description

Title of the invention: Pump motor with air intake on the flange

[0001] The present invention relates to a simplified pump motor. It also relates to a cosmetic device comprising this pump motor and a cosmetic method implementing such a device.

[0002] More generally, a cosmetic product is a product as defined in Regulation (EC) No 1223 / 2009 of the European Parliament and of the Council of 30 November 2009 on cosmetic products. Technological background

[0003] The operating principle of metering pumps for dispensing fluid, liquid, or paste-like products is well known. They are mounted on a bottle containing the product to be dispensed and consist of a metering chamber with a determined volume, a piston that moves within the chamber under the action of a plunger, and at least two valves. The lower valve, or inlet valve, located at the chamber's inlet and controlling communication with the inside of the bottle, is closed when the plunger is pressed while the upper valve, at the chamber's outlet, is open, allowing the product expelled from the chamber by the piston's movement to pass through. Then, when the plunger is released, the piston rises in the chamber under the action of a spring system, the upper valve closes while the lower valve opens, allowing the chamber to be refilled for the next dispensing of a dose of product.

[0004] Various types of pumps have already been proposed as in documents KR101475631, KR102375017, FR2910885, CN214567479U, DE3420678, FR2671330, US5377880, WO200191913, FR2907034, WO2009141510, WO201089599, WO201427041.

[0005] Simplified design pumps have already been proposed.

[0006] Document WO2006046802 discloses a device, particularly usable for an "airless" system (without air intake into the container holding the product), comprising a container portion for holding a liquid; a first valve installed on an opening in the container portion, the first valve being designed to allow the liquid to flow into the container portion and prevent the liquid from entering the container portion; a pressure portion for forming a pressure space on an external side of the first valve, the pressure portion being made of a flexible material; and a second valve installed on the pressure portion, the second valve allows the liquid to flow into the pressure section and prevents the liquid from entering the pressure section.

[0007] According to this document, the pump motor comprises six parts.

[0008] Further efforts are being made to improve pump motors, in particular by:

[0009] Reducing the number of component parts thereof,

[0010] Removing the non-recyclable metal spring part,

[0011] Reducing the production costs of the parts and their assembly,

[0012] Improving their recyclability,

[0013] Reducing the number of constituent materials, ideally to move towards single-material pumps.

[0014] The development of eco-responsible, environmentally friendly solutions, whose design and development take environmental issues into account, is becoming a major concern in order to help meet global challenges. It is therefore essential to design products that reduce the amount of materials used and / or replace them with more environmentally friendly materials and / or use recyclable materials in order to decrease the product's carbon footprint.

[0015] In this context, it is important to offer recyclable products containing, in particular, detachable components and / or made of a minimum of materials and / or free from materials that are difficult to recycle in order to facilitate their end-of-life. Thus, it is necessary to develop products made of environmentally friendly recyclable materials to enable the recovery of products at the end of their life and prevent pollution of recycling streams.

[0016] In this context, it becomes important to replace certain materials with alternatives that have a better environmental footprint.

[0017] In this context, it is important to develop products that generate less waste, particularly those optimized for the quantity of products transported, notably by redesigning and / or resizing them to reduce the volume and weight of packaging. The objective is to offer eco-responsible products made with a minimum number of parts.

[0018] The French patent application filed by the Applicant on December 5, 2022, under number 2212765, relates to a pump motor with a longitudinal axis X intended to be fixed to a neck defining an opening of a container containing a cosmetic product, the neck being provided with an air intake orifice separate from the opening, the pump motor comprising:

[0019] a pump body equipped with a fixed part forming a plate mounted on the opening of the container,

[0020] an external assembly movable relative to the plate between an actuation position and a rest position, and defining with the plate a pumping chamber of variable volume, the external assembly comprising a first valve for the distribution of the product and a base part for fixing the pump motor to the neck of the container,

[0021] a second valve arranged on the pump body allowing the pumping chamber to communicate with the inside of the container,

[0022] The pump body includes a third valve designed to (i) open the air return port when the user releases the external assembly from its actuation position and to (ii) close the air return port when the external assembly is in its rest position.

[0023] The aim of this invention is to provide a simplified atmospheric pump with fewer parts for improved cost-effectiveness and durability (recyclable), as well as for ease of use and adaptability to different types of products (such as body lotion or shampoo). The pump can also be easy to clean and therefore reusable.

[0024] We are also looking for a design that is more controllable during manufacturing.

[0025] To achieve this goal, the invention proposes a simplified atmospheric pump motor, in particular with 4 or 6 injection-molded parts, with rigid sections for assembly and robustness and more flexible sections for operation and comfort. In the case of the injection-molded parts, they exhibit variations in thickness, structure, or hardness of certain parts of the component, depending on its functionality, such as having rigid sections for assembly and robustness and flexible sections for operation and comfort.

[0026] The pump motor can be used on different neck sizes, for different types of products and dosages. It is very advantageous from the point of view of its construction and dimensions. Definition of the invention

[0027] The invention relates to a longitudinal axis X pump motor intended to be fixed to the neck of a container holding a cosmetic product to be dispensed, the pump motor comprising:

[0028] a pump body intended to be mounted on the neck of the container and comprising a plate fitted with a connection fitting for a dip tube, the connection fitting being provided with a bottom non-return suction valve,

[0029] an external assembly comprising a rigid base part intended to be attached to the neck of the container, this base part being extended by a push button made of flexible material actuated by a user, the push button is movable relative to the plate between a pressed position and a rest position, and the external assembly defines with the plate a pumping chamber of variable volume, the push button is equipped with a high non-return discharge valve for product distribution,

[0030] The tray is formed by a support piece intended to be held between the neck of the container and the external assembly and by a cover piece defining with the support piece and with a portion of the base part having an air return hole an air return chamber, a non-return air return valve cooperating with the air return hole and designed to (i) open, when the user releases the push button from its depressed position and to (ii) close when the push button is in its rest position, being provided in the support piece and the cover piece having a cup shape with concavity turned towards the push button defining a dose chamber to store the product before its distribution.

[0031] According to the invention, the air return valve opens when the user releases the external assembly because it is at this moment that a vacuum is created inside the container to draw the product up into the pumping chamber. The air return valve closes when the pressure inside the container is equivalent to atmospheric pressure, that is, once the pumping chamber is full or partially full.

[0032] The pump motor according to the invention can group the functions that exist in different components of current pumps into fewer parts, in particular into only four parts, in order to reduce their quantity and obtain a distribution system that is still efficient.

[0033] The lower valve according to the invention allows the product to enter the dosing chamber. The upper valve according to the invention allows the product to be dispensed.

[0034] Thanks to the particular structure of the pump motor according to the invention, its parts can be formed into a lightweight monomaterial suitable for paper bottle packaging for recyclability, for example.

[0035] According to the invention, the air intake is no longer positioned at the level of the neck of the container, but rather at the level of the pump flange.

[0036] The air return valve is not in the form of a removable tab that moves according to the vacuum created inside the bottle against the neck of the container. On the contrary, the system includes an air return chamber that goes all the way around the neck, with a one-way valve that allows air to enter with the vacuum created inside the container when the product is pumped into the dosing chamber.

[0037] Advantageously, the upper flap is not a functional part of the external assembly, but an isolated part which is assembled inside the product conduit present on the spout of the external assembly.

[0038] The invention also relates to a cosmetic conditioning and dispensing device with a longitudinal axis X, comprising a pump motor as described above, mounted on a container. Advantageously, the pump motor is removably mounted on the container.

[0039] The invention also relates to a cosmetic product refill intended to be assembled to a pump motor as described above.

[0040] The invention also relates to a cosmetic process comprising the implementation of a device as described above or a refill as described above.

[0041] Preferably, the pump motor is primed by pressing the push button to expel the air present in the dose chamber until the cup fills with product.

[0042] More preferably, the product is pumped into the cup to open the air intake valve and push the product from the container towards the dip tube.

[0043] The invention also relates to a method of manufacturing a pump motor as described above, comprising the operations of: (i) manufacturing the pump body by injection molding, (ii) manufacturing the external assembly by injection molding, the pump body possibly being manufactured in one piece with the plunger tube, (iii) assembling the pump body and the external assembly.

[0044] Preferably, the method comprises the operations of (iv) assembling the upper non-return discharge valve in the push button, (iv) optionally, assembling the lower non-return suction valve in the connecting nozzle, (vii) optionally assembling the air return valve in the support piece. Preferred modes of implementation

[0045] Preferably, the pump motor according to the invention has one or more of the following characteristics, taken alone or in combination:

[0046] The air return valve has a tab located below the plate when the pump body is viewed with the external assembly at the top. The tab is designed to (i) move away from an orifice through the plate when the user releases the push button from its depressed position and to (ii) come to a stop against the plate when the push button is in its rest position. The advantage is a simple design that allows it to be integrated into the plate assembly, and thus be a single piece.

[0047] The tongue is formed in one piece with the plate.

[0048] The cover piece seals against the air intake chamber. The bottom non-return suction valve is formed as a single piece with the pump body. This is one of the options, the advantage of which is that it requires fewer assembly steps in the pump's production.

[0049] The bottom suction non-return valve forms a detachable part of the pump body. The advantage is that it allows for greater flexibility in valve configurations, while simultaneously reducing the complexity of the injection mold required to produce the tray separately.

[0050] The lower valve is designed to supply the dosing chamber with product via the dip tube when the user releases the push button from its depressed position. The dip tube is assembled to the nozzle provided in the lower part of the pump body. According to this embodiment, there is less play between the parts and, consequently, less risk of malfunction because there are fewer parts to assemble. Very often, in the prior art, this lower valve is a metal ball. According to the invention, a flexible non-return valve is proposed, which will allow for the recyclability of the pump and also reduce production costs (if everything is made in one piece or if the same valve as the air intake valve is reused).

[0051] The base part includes a mounting skirt. The base part can contribute to the sealing of the system.

[0052] The external assembly includes a flexible central portion that the user can press to dispense the product. Several functions are combined into a single piece, which is the advantage compared to conventional pumps with separate parts for each function.

[0053] The lower valve forms a projection in the opposite direction to the container, the projection having a slot adapted to open and close elastically. It is possible to modify the valve configuration according to the type of formula / product to adapt it by changing the format of the outlet end as well as the slots, in particular a single or two slots in a cross shape.

[0054] The air return valve forms a projection towards the container, the projection having a slot adapted to open and close elastically. The advantage is the same as for the bottom valve.

[0055] The pump body is formed in one piece and the external assembly is formed in one piece. This embodiment leads to a simplification of the pump's operation, a reduction in costs and assembly time, and complete recyclability of the motor.

[0056] The upper valve is inserted inside the external assembly in a discharge duct. The upper valve also functions as an extreme closing system, preventing the product from remaining in contact with the air. It is possible to make everything in one piece using other technologies, such as plastic injection molding with a soluble mold.

[0057] The motor is made of a single material. Description of the figures

[0058] Other features and advantages of the invention will become apparent from the following detailed description, non-limiting examples of its implementation, and from examination of the accompanying drawing, in which:

[0059] [Fig.1]

[0060] Figure 1 shows a longitudinal section of a first example of a device according to the invention at rest, external assembly at rest, 4-piece version,

[0061] [Fig.2]

[0062] Figure 2 shows a longitudinal section of a second example of the device according to the invention at rest, external assembly at rest, 6-piece version.

[0063] [Fig.3]

[0064] Figure 3 shows in perspective the pump body of the device in Figure 2.

[0065] [Fig.4]

[0066] Fig.4 represents in perspective the air return valve of the device of Fig.2, the part is identical, it adjusts the orientation which changes according to the flow of the fluid (air / formula).

[0067] [Fig.5]

[0068] Fig. 5 represents in perspective the lower flap of the device of Fig. 2.

[0069] [Fig.6]

[0070] Fig. 6 shows the device of Fig. 2, with a reference to the air path after actuation.

[0071] Figure 7 shows a longitudinal section of the device in Figure 2, indicating the path of air and product after actuation,

[0072] The conditioning and distribution / dosing device with longitudinal axis X shown in [Fig.1] includes a pump motor 10 mounted on a neck 50 defining an opening of a cylindrical container 2, containing a product to be distributed.

[0073] In the example shown, the pump motor 10 and the dip tube 4 are separate parts, although the pump motor 10 is formed from four parts. In another embodiment of the invention, the dip tube 4 can be formed as a single piece with the pump motor 10. This one-piece construction of the motor and the dip tube is a major advantage of the invention, resulting in savings in labor and manufacturing costs.

[0074] The pump motor 10 comprises a pump body 3 equipped with a plate 11 mounted on the opening of the container 2 and an external assembly 1 formed by a base 12 made of rigid material screwed onto the neck 50 of the container, surmounted by a dome-shaped push button 18 made of flexible material which the user can press to dispense the product. The push button 18 could also be of another shape.

[0075] The tray 11 is formed by a rigid or semi-rigid lower part forming a circular support part 25 in which a cylindrical connecting tip 14 is provided and by a flexible upper part forming a cup-shaped cover part 26.

[0076] The support piece 25 has a central cylindrical connection nozzle 14 with longitudinal axis X oriented towards the container 2, onto which a dip tube 4 can be fixed. It extends towards the push button 18 by means of a bottom flap 8 coaxial with the nozzle 14. The support piece 25 is sandwiched, at its external periphery 45, between the upper edge of the container 2 and the external assembly 1. In the example shown, the support piece 25 has a central bottom flap 8 with longitudinal axis X whose circular inlet section is smaller than the circular inlet section of the nozzle 14, the sections being measured perpendicular to the longitudinal axis X.

[0077] An air return valve 9 is provided on the annular part 45 of the support piece, for example halfway between the nozzle 14 and the outer periphery 45. In the example shown, the air return valve 9 includes a tab 29 that can move between a closed position of an orifice 19 to block the arrival of air into the container 2 and an open position of this orifice to allow air to pass into the container 2.

[0078] The cover piece 26, shaped like a cup with its concave side facing the push button 18, is internally joined to the support piece 25 by means of a cylindrical connecting portion 42 forming a connecting skirt. This skirt, together with a cylindrical base portion 43 of the lower flap 8, defines an annular space 41 between the lower flap 8 and the cover piece 26. The outer periphery 46 of the cover piece 26 bears against an inner face 44 of the base portion 12. The cover piece 26, together with the support piece 25 and a portion 28 of the base portion 12 having an air return hole 5, defines an air return chamber 30 of variable volume. In one embodiment of the invention, the outer periphery 46 can be received in a complementary groove provided in the base portion 12.

[0079] The rigid base portion 12 is formed by an internally threaded mounting skirt 21, intended to be screwed onto the neck 50 of the container 2. The base portion 12 could be fixed to the neck 50 of the container 2 by other means without removing it. of the framework of the present invention, by snapping, gluing, welding or crimping for example.

[0080] The external assembly 1 includes a high distribution valve 6, inserted in a tubular discharge conduit 17, while the pump body 3 includes the low valve 8 and the air return valve 9 or air return management valve.

[0081] The two valves 6 (top) and 8 (bottom) are the two fluid control valves inside the dosing chamber 31. Advantageously, the external assembly 1 and the pump body are made of materials allowing for variable flexibility / rigidity, such as elastomers, high-density and low-density polyethylene, for example. According to the invention, the levels of rigidity / flexibility are varied in order to adapt these parameters to the characteristics of the product being processed. For example, for a thick juice, an external assembly with sufficient shape memory to return to its starting position will be chosen; the rigid part for assembly to the neck of the bottle will also be adapted according to the material of the bottle.

[0082] The external assembly 1 also includes a central flexible portion or dome-shaped push button 18 which the user can press to dispense a dose of product. This flexible portion forms an actuation zone and acts as both the spring and the pumping chamber. The external assembly 1 could have a completely different shape than the one shown.

[0083] The plate 11 defines with the external assembly 1 a pumping chamber 13, of variable volume.

[0084] The platform 11 may include a dip tube 4 made in one piece with the pump body 3 or inserted into a nozzle 14 of the pump body 3, or around the nozzle 14 of the pump body 3 because everything depends on the type of product, cream in particular, and therefore of dip tube, to determine the best way to assemble it to the pump body.

[0085] The mounting skirt 21 is extended upwards by a central portion, the air intake orifice 5 preferably being provided in the central portion. The tray 11 is held between the upper end of the neck 50 of the container 2 and the lower end of the central portion. In other words, the central portion defines, with the neck 50 of the container 2, an open annular space extending perpendicularly to the X-axis towards the interior of the device and in which the tray 11 is engaged.

[0086] The lower face of the radially outer portion of the tray 11 normally comes to rest against the edge of the neck 50 of the container 2, in a sealed manner, to prevent the product contained in the container 2 from flowing outwards, between the outer assembly 1 and the neck 50 of the container 2. Similarly, the upper face of the radially outer portion of the tray 11 normally comes to rest against the outer assembly, in a sealed manner, to prevent the product contained in the pumping chamber 13 to flow outwards, between the external assembly 1 and the neck 50 of the container 2.

[0087] It follows that the tray 11 acts as a sealing gasket between the container 2 and the external assembly.

[0088] According to one aspect of the invention, the pump body 3 includes a lower valve 8, located in the example considered in the center of the plate 11, and allowing the pumping chamber 13 to be put in communication with the interior of the container 2 when the external assembly 1 is released after actuation, the volume of the pumping chamber 13 then being filled.

[0089] Here, in the example shown, the lower valve 8 forms a dome projecting outwards from the container 2 and is formed with at least one slot. The lower valve 8 could, for example, also form a cone or a pyramid or an ogive, like the upper valve.

[0090] In such a situation, at least the dome is formed of a flexible material so that the slot opens and closes elastically. In particular, this can be the case for all three flaps (upper flap 6, lower flap 8 and air return).

[0091] The slot opens to allow the product to flow into the pumping chamber 13 when the pressure in the pumping chamber 13 is less than the pressure inside the container 2, and the slot is closed to prevent the return of the liquid into the container 2 when the pressure inside the pumping chamber 13 is greater than or equal to the pressure inside the container 2.

[0092] In addition, a plurality of slots can also be arranged radially on the projection.

[0093] The external assembly includes a top valve 6 for the outlet of the product in the form of a dose of product.

[0094] The external assembly 1 may include an evacuation conduit 17 allowing the product to reach the upper valve 6.

[0095] The lower valve 8 forms a dome of flexible material converging towards the bottom of the pumping chamber 13. In the example shown, the lower valve 8 is located above the opening 19 of the container 2 and below the upper valve 6, relative to the longitudinal axis X. The lower valve 8 could be positioned differently relative to the upper valve 6. For example, in another configuration, the spout could be at the level of the tray. Depending on the final aesthetics of the pump, the discharge pipe 17, the push button 18, and the mounting skirt 21 can be aesthetically modified, as they also serve an aesthetic function.

[0096] The tray 11 is extended below by an air return flap 9 with a hinge or tab 29 connected to the tray 11 for example by a fixed film hinge with pivot axis located in a plane perpendicular to the longitudinal axis X.

[0097] When a depression exists inside the container 2 due to the release of the external assembly after its actuation, air can be drawn into the container 2 through the air intake hole 19 and reach the container 2, because the tab 29 moves away from the plate 11 to open a passage for the air.

[0098] The device shown in [Fig. 2] is identical to that of [Fig. 1], except that the lower valve 8 is a detachable part of the pump body 3 and the air return valve 9 is no longer a swing valve. In [Fig. 2], the air return valve 9 is a detachable part identical to the lower valve 8, being oriented in the opposite direction to the lower valve 8 to ensure air circulation towards the container, while the lower valve 8 ensures product circulation from the container to the dosing chamber 31. As a result, the pump motor 10 shown in [Fig. 2] is made up of 6 parts instead of 4 parts for the pump motor of [Fig. 1].

[0099] Figure 3 shows the pump body 3 of Figure 2, the dashed lines representing the air in the air return chamber 30 and an arrow representing the passage of air from the air return chamber 30 to the container 2, an air return valve 9 (not shown) being in place in the positioning orifice 90. Figure 3 also shows the path of the product exiting the lower valve 8 (not shown) in the positioning passage 80, the product going towards the dosing chamber 31.

[0100] Figure 4 shows the positioning of the air return valve 9 with slot 91 oriented towards the container 2.

[0101] Figure 5 shows the positioning of the lower valve 8 or slotted inlet valve 81 oriented in the opposite direction to the container 2.

[0102] The air return path is shown in [Fig. 6]. During the priming phase, the user presses the dome, which expels air from the dose chamber 31 until the dose chamber 31 is filled with product. Simultaneously, as product is pumped into the dose chamber 31, a vacuum is created inside the container 2, which opens the air return valve 9. This allows the air from the air return chamber 30 to flow into the container 2.

[0103] The path of the air intake and the product is shown in [Fig.7]. Once the dose chamber 31 is filled with product, each actuation will deliver a dose of product.

[0104] The operation of the device is as follows.

[0105] It is assumed that the device is used while initially in its rest position.

[0106] To dispense the product, the user applies downward pressure to the area actuation of the external assembly 1, which moves relative to the plate 11, so that the pressure contained in the pumping chamber 13 increases.

[0107] When the actuation zone is sufficiently depressed, the pressure exerted on the second valve 8 keeps it closed, and on the first valve 6 causes it to open, thus allowing priming or dose distribution once the dose chamber is filled with product.

[0108] When the user releases pressure on the external assembly 1, the product is drawn into the pumping chamber 13 by the vacuum created within it. Air can be drawn in along the path indicated by arrows in [Fig. 6] or 7 from the air intake port 5, to compensate for the volume of product drawn in by the pump motor 10 within the container 2.

[0109] When the pump motor 10 returns to its rest position, some product may remain inside the pumping chamber 13 because the upper valve 6 and the lower valve 8 remain closed, preventing communication between the dip tube 4 and the pumping chamber 13.

[0110] The air return valve 9 returns to its rest position.

[0111] All valves are one-way:

[0112] Upper valve 6: prevents air from entering the dose chamber 31,

[0113] Lower valve 8: prevents the product from flowing back down into the dip tube 4,

[0114] Air return valve 9: prevents air from escaping from inside container 2.

[0115] Of course, the invention is not limited to the example of implementation that follows to be described.

[0116] The pump body 3 may in particular include valves having a completely different structure.

Claims

1.

2. Demands A pump motor (10) with a longitudinal axis (X) intended to be fixed to the neck (50) of a container (2) containing a cosmetic product to be dispensed, the pump motor (10) comprising: a pump body (3) intended to be mounted on the neck (50) of the container (2) and comprising a plate (11) fitted with a connection nozzle (14) for a dip tube (4), the connection nozzle (14) being fitted with a bottom non-return suction valve (8), an external assembly (1) comprising a base portion (12) made of rigid material intended to be attached to the neck (50) of the container (2), this base portion (12) being extended by a push button (18) made of flexible material operable by a user, the push button (18) being movable relative to the plate (11) between a depressed position and a rest position, and the external assembly (1) defining with the plate (11) a pumping chamber (13) of variable volume,The push button (18) is equipped with a high non-return discharge valve (6) for product distribution, characterized in that, The tray (11) is formed by a support piece (25) intended to be held between the neck of the container and the external assembly (1), and by a cover piece (26) defining, together with the support piece (25) and with a portion (28) of the base part (12) having an air vent (5), an air vent chamber (30), a non-return air vent (9) cooperating with the air vent (5) and designed to (i) open when the user releases the push button (18) from its depressed position and to (ii) close when the push button (18) is in its rest position, being provided in the support piece (25) and the cover piece (26) having a cup-like shape with its concavity facing the push button (18), defining a dose chamber (31) for storing the product before dispensing, and the lower suction valve (8). non-return is formed in one piece with the pump body (3).Motor according to claim 1, characterized in that the air return valve (9) has a tab (29) located below the plate (11) when the pump body (10) is viewed with the external assembly (1) at the top, the tab (29) being designed to (i) move away from an orifice (19) through the plate (11) when. the user releases the push button (18) from its pressed position and to (ii) come to rest against the plate (11) when the push button (18) is in its rest position.

3. Motor according to claim 2, characterized in that the tongue (29) is formed in one piece with the plate (11).

4. Engine according to any one of the preceding claims, characterized in that the cover piece (26) seals with the air intake chamber (30).

5. Motor according to any one of claims! to 4, characterized in that the lower non-return suction valve (8) forms a detachable part of the pump body (3).

6. Motor according to any one of the preceding claims, characterized in that the base part (12) includes a mounting skirt (21).

7. Motor according to any one of the preceding claims, characterized in that the external assembly (1) has a flexible central portion (18) on which the user can press to eject the product.

8. Motor according to any one of the preceding claims, characterized in that the lower valve (8) forms a projection in the opposite direction to the container (2), the projection having a slot adapted to open and close elastically.

9. Motor according to any one of the preceding claims, characterized in that the air return valve (9) forms a projection towards the container (2), the projection having a slot capable of opening and closing elastically.

10. Motor according to any one of the preceding claims, characterized in that the pump body (3) is formed in one piece and the external assembly (1) is formed in one piece.

11. Motor according to any one of the preceding claims, characterized in that the upper valve (6) is inserted inside the external assembly (1) in a discharge conduit (17).

12. A device for conditioning and dispensing a cosmetic product with a longitudinal axis (X), characterized in that it comprises a pump motor (10) according to any one of the preceding claims assembled on a container (2) and the pump motor (10) is removably assembled on the container (2).

13. A cosmetic process comprising the implementation of a device according to claim 12.

14. Cosmetic process according to claim 15, characterized in that the pump motor is primed by pressing the push button (18) to expel the air present in the dose chamber (30) until the cup is filled with product.

15. A cosmetic process according to any one of claims 13 or 14, characterized in that the product is pumped into the cup to open the air return valve (9) and push the product from the container (2) towards the dip tube (4).

16. Method of manufacturing a pump motor (10) according to any one of claims 1 to 11, comprising the operations of: (i) manufacturing the pump body (3) by injection molding, (ii) manufacturing the external assembly (1) by injection molding, the pump body (3) optionally being manufactured in one piece with the plunger tube (4), (iii) assembling the pump body (3) and the external assembly (1).

17. Method of manufacturing a pump motor (10) according to the preceding claim, characterized in that it comprises the operations of (iv) assembling the upper non-return discharge valve (6) in the push button (18), (iv) optionally, assembling the lower non-return suction valve (8) in the connecting nozzle (14), (vii) optionally assembling the air return valve (9) in the support piece (25).

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