A device for dispensing a fluid substance

Abstract

A device (1) for dispensing a fluid substance, comprising a base element (2) and a movable closing element (3), the movable element (3) being rotatably mounted on the base element (2), the base element determining a skirt (4) on which constraining means (5) are made which are configured to couple to a container for the said fluid substance when the device (1) is mounted on the container, and a hinge (7) from which a button (6) extends, the said button determining a conduit (9) which features, at a first end thereof, a seat (10) configured to couple to a hollow stem in a sealed manner, through whose cavity the said fluid substance is delivered, under pressure, to the device (1) when the device is mounted on the stem, and at a second end thereof, a dispensing port (11), the dispensing port (11) flowing into a cavity (12) determined at least partially in the base element (2), the movable element (3) determining a wall (13) equipped with a window (14), and being limitedly rotatable on the base element (2) between a dispensing position - in which the window (14) is facing the dispensing port (11) and the cavity (12) - and a closing position, in which the dispensing port (11) is closed by the said wall (13), the movable element (3) featuring a stop (16) which, at least when the said movable element (3) is in the closing position, limits or prevents travel of the said button (6) by coming into contact with at least one part thereof (18).

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a fluid substance dispensing device.

[0002] In particular, the patent refers to a dispensing device for a cream for cosmetic or medical use, or for a cream cleaner for homes.BACKGROUND ART

[0003] There are various commonly known dispensing devices for fluid substances such as creams.

[0004] These devices can be either mounted on containers inside which the cream is pressurised by means of a manually operated pump, or on valve systems in which the cream is housed, pressurised, either directly inside a container or in a deformable bag that is pressurised externally.

[0005] Regardless of how the fluid substance is pressurised, it is delivered under pressure to a cavity in a stem, the said stem being coupled to a dispensing button. The stem activates the pump or valve.

[0006] The cream is usually dispensed to a user through a small nozzle or simply a hole on the surface of the device, from which the user takes the cream after activating the valve or pump.

[0007] Some kinds of cream maintain their consistency upon contact with air, but over time they dry out and can block up the dispensing port.

[0008] Other kinds of cream, such as shaving cream, expand upon contact with air, turning into a foam. In this case, the residues that remain around and inside the dispensing port, which are always in contact with air, can dry out and block the dispensing port.

[0009] Furthermore, especially in the latter case but also in the former, the cream just dispensed may expand slightly and drip from the dispensing port or nozzle onto or around the surface of the dispensing device, making a mess. This is due to what is known as post-foaming.SUMMARY OF THE INVENTION

[0010] The object according to the present invention is to provide a fluid substance dispensing device which is improved compared with the prior art.

[0011] A further object of the invention is to provide a fluid substance dispensing device which is more convenient to use than conventional devices.

[0012] This and other objects are achieved by means of a fluid substance dispensing device produced according to the technical teachings of the appended claims.

[0013] Advantageously, the device makes it easier for the user to dispense the fluid substance.

[0014] Furthermore, it reduces the risk of unwanted dripping, outside the device, both during and after dispensing.BRIEF DESCRIPTION OF THE FIGURES

[0015] Further features and advantages of the innovation will become clearer in the description of a preferred but not exclusive embodiment of the device, illustrated - by way of a non-limiting example - in the drawings appended hereto, in which: Figure 1 is a perspective view of the device according to the present invention, in the open or dispensing position, with a container to which the device can be coupled is also partially shown; Figure 2 shows a perspective view of the device in Figure 1 but in the closed position; Figure 3 is a partially sectioned perspective view of the device in the configuration shown in Figure 1; Figure 4 is a partially sectioned perspective view of the device in the configuration shown in Figure 2; Figure 5 is a perspective view of a base element of the device; Figure 6 is a bottom-up perspective view of a movable element of the device; Figure 7 is a side view of the movable element in Figure 6; Figure 8 is an enlarged view of the detail shown in the circle in Figure 1; and Figure 9 is an enlarged view of the detail shown in the circle in Figure 5. DETAILED DESCRIPTION OF THE INVENTION

[0016] With reference to the figures stated, reference number 1 is used to denote, as a whole, a fluid substance dispensing device.

[0017] In the present document, "fluid substance" means a preferably dense fluid substance, such as a cream.

[0018] The cream dispensed by the device may be a cream for cosmetic or medical use, or a cream cleaner for homes.

[0019] For example, it may be a cosmetic cream such as a foundation, an anti-wrinkle cream, a shaving cream, a foaming cream (which expands upon contact with air to become a foam, for example for shaving), a shower gel, shaving gel, a toothpaste, etc.

[0020] The device 1 for dispensing a fluid substance comprises a base element 2 and a movable closing element 3.

[0021] The base element 2 is clearly shown in Figure 5, while the movable closing element 3 is illustrated in Figures 6 and 7.

[0022] Advantageously, both the base element 2 and the movable element 3 are made as a single piece of injection moulded plastic. PP or PE are suitable plastics for the production of such pieces.

[0023] The movable element 3 is rotatably mounted on the base element 2.

[0024] Preferably the base element 2 and the movable element 3 are snap-fitted together. For this coupling, the base element can feature one or more teeth 30 that snap-fit onto a protruding edge 31 of the movable element 3, the said edge being preferably continuous and essentially circular.

[0025] The base element 2 determines a skirt 4 on which constraining means 5 are made.

[0026] The said constraining means 5 are configured to couple (again, for example, by snap-fitting) to a container C for the said fluid substance onto which the device 1 is designed to be mounted.

[0027] The container C can feature, integrated thereinto, a pump or a valve. In the case of a valve, the container can be pressurised and the fluid substance can be housed therewithin directly inside the said container, therefore under pressure, or within a deformable bag (sealingly connected to the valve) and pressurised on the outside.

[0028] In any case, a hollow stem S can extend from both the pump and the valve. From the cavity of the stem, the fluid substance to be dispensed is supplied to the device 1 pressurised.

[0029] The base element 2 furthermore comprises a hinge 7 from which a button 6 extends. The button is preferably formed as a single piece with the base element 2.

[0030] The hinge 7 can fasten (in a movable manner) the button 6 to a structure 32 that extends, as a single piece, from the skirt 4.

[0031] This structure 32 may be the structure that also determines the aforesaid teeth 30.

[0032] The hinging 7 can be made either by reducing the thickness of the part that constrains the button 6 to the structure 32, or by exploiting the intrinsic flexibility of the plastic forming the base element 2, and more specifically of the part connecting the button and the structure 32 or the skirt.

[0033] Advantageously, on this part (which may be flexible either by nature or as a result of its shape) a dispensing port 11 (also called dispensing light 11) can be featured, as will be described below.

[0034] Specifically, the button 6 defines a conduit 9 featuring, at a first end thereof, a seat 10 configured to couple tightly to the hollow stem S described above.

[0035] As already mentioned above, the fluid substance is supplied, under pressure, through the cavity of the stem S to the device 1.

[0036] At a second end thereof, the conduit 9 features the said dispensing port 11; the dispensing port 11 opens into a cavity 12 (open to the outside) defined, at least partially, in the base element 2.

[0037] The cavity 12 is advantageously defined on the said part that makes the hinging 7 possible.

[0038] The movable element 3 defines a wall 13 endowed with a window 14, and is limitedly rotatable on the base element 2 between a dispensing position, in which the window 14 is facing the dispensing port 11 (Figs. 1 and 3) and the cavity 12, and a closed position, in which the dispensing port 11 is closed by the said wall 13 (Figs. 2 and 4).

[0039] The rotation of the movable element 3 can be limited by two stops 51 on the base element 2, which cooperate alternatively (i.e. in the closed position and in the dispensing position) with a protrusion 50 on the movable element 3.

[0040] The movable element 3 also features a stop 16 (Figs. 4 and 6) which, at least when the said movable element 3 is in the closed position, limits or prevents travel of the said button 6 by coming into contact with at least a part 18 thereof.

[0041] The stop 16 on the movable element can feature a cradle - shaped portion, which is clearly visible in both Figure 4 and Figure 6 and which houses, in the closed position, the said part 18, which is shaped like a wall. This wall 18 can be essentially curved (in a plan view), having the same shape as the button 6 in the area where the said wall is made. The wall can also feature positioning recesses that facilitate coupling with the cradle.

[0042] The cradle determined by the stop 16 can also be curved, in plan view (see Figure 6), so as to have the same shape as the wall 18.

[0043] As clearly visible in the details shown in Figures 8 and 9, a vent passage 15 can be defined in the cavity 12, the said passage connecting at least a part of the said cavity 12 with an internal compartment 19 formed in the device, the internal compartment 19 being hidden from view during use of the device 1.

[0044] The internal compartment 19 can be essentially determined underneath by the container C and above by the base element and the movable element 3. Therefore, the compartment 19 is determined between the container C and the device 1.

[0045] As visible in Figure 3, the vent passage 15 can be made completely in the base element 2.

[0046] Furthermore, the vent passage 15 can have a U shape with a concavity facing the said dispensing port 11, which can be essentially circular.

[0047] Advantageously, the vent passage 15 is provided underneath the port 11, precisely to collect residues of the fluid substance that may flow, by force of gravity, into the passage and drain into the compartment 19 (which is, remember, hidden from the user's view) when the device is oriented as shown in Figure 1 or Figure 2 (therefore, for example, when the container C is vertical - e.g. placed on a shelf-).

[0048] Advantageously, between the cavity 12 and the window 14 there is a raised rim 25, which is configured to essentially seal the said cavity 12 with the said window 14 when the movable element 3 is in the dispensing position.

[0049] Preferably the raised rim 25 is made on the base element 2, surrounding the cavity 12, and is configured to slide along the wall 13 during movement of the movable element 3.

[0050] In the example shown, the window 14 has a circular configuration, therefore the raised rim 25 also has a circular configuration wherein the diameter is slightly smaller than that the diameter of the window 14, precisely to seal any gaps in the dispensing area, between the base element 2 and the wall 13 of the movable element 3, snap-fitting into the window 14 when the movable element is rotated into the dispensing position.

[0051] Obviously, the window 14 can feature other configurations or shapes (for example oval, polygonal, etc.) and the protruding edge 25 can have a configuration corresponding to the perimeter of the window 14, precisely so as to snap-fit into the window and act as a seal.

[0052] Alternatively, the raised rim 25 can have a larger surface area than the window 14, so as to form a seal externally to the perimeter of the window 14.

[0053] A raised rim 25 is described above, which is made on the base element 2, but such raised rim may also be made (in addition or alternatively) on the wall 13 of the movable element 2 (therefore, around or along the perimeter of the window 14).

[0054] To clean the dispensing area during the rotation of the movable element 3, the latter may comprise or determine a scraper 20.

[0055] The scraper 20 may be positioned so as to slide, during rotation of the movable element 3, over a surface of the base element 2 that determines the said dispensing port 11 and / or the said cavity 12 so as to clean the said cavity and / or port by removing any residues of fluid substance.

[0056] For example, the scraper 20 can be defined by at least one rib 20 made on the said wall 13, facing the base element 2.

[0057] To conclude the description above, it is highlighted that the window 14 can be obtained in correspondence with a concave area 21 (essentially a recess) in the said wall 13.

[0058] In this way, a user can more easily collect, for example with a finger, the cream coming out of the port 11.

[0059] Various embodiments of the innovation have been disclosed herein, but further embodiments may also be conceived using the same innovative concept.

Examples

Embodiment Construction

[0016]With reference to the figures stated, reference number 1 is used to denote, as a whole, a fluid substance dispensing device.

[0017]In the present document, "fluid substance" means a preferably dense fluid substance, such as a cream.

[0018]The cream dispensed by the device may be a cream for cosmetic or medical use, or a cream cleaner for homes.

[0019]For example, it may be a cosmetic cream such as a foundation, an anti-wrinkle cream, a shaving cream, a foaming cream (which expands upon contact with air to become a foam, for example for shaving), a shower gel, shaving gel, a toothpaste, etc.

[0020]The device 1 for dispensing a fluid substance comprises a base element 2 and a movable closing element 3.

[0021]The base element 2 is clearly shown in Figure 5, while the movable closing element 3 is illustrated in Figures 6 and 7.

[0022]Advantageously, both the base element 2 and the movable element 3 are made as a single piece of injection moulded plastic. PP or PE are suitable plastics f...

FIELD OF THE INVENTION

[0001] The present invention relates to a fluid substance dispensing device.

[0002] In particular, the patent refers to a dispensing device for a cream for cosmetic or medical use, or for a cream cleaner for homes.BACKGROUND ART

[0003] There are various commonly known dispensing devices for fluid substances such as creams.

[0004] These devices can be either mounted on containers inside which the cream is pressurised by means of a manually operated pump, or on valve systems in which the cream is housed, pressurised, either directly inside a container or in a deformable bag that is pressurised externally.

[0005] Regardless of how the fluid substance is pressurised, it is delivered under pressure to a cavity in a stem, the said stem being coupled to a dispensing button. The stem activates the pump or valve.

[0006] The cream is usually dispensed to a user through a small nozzle or simply a hole on the surface of the device, from which the user takes the cream after activating the valve or pump.

[0007] Some kinds of cream maintain their consistency upon contact with air, but over time they dry out and can block up the dispensing port.

[0008] Other kinds of cream, such as shaving cream, expand upon contact with air, turning into a foam. In this case, the residues that remain around and inside the dispensing port, which are always in contact with air, can dry out and block the dispensing port.

[0009] Furthermore, especially in the latter case but also in the former, the cream just dispensed may expand slightly and drip from the dispensing port or nozzle onto or around the surface of the dispensing device, making a mess. This is due to what is known as post-foaming.SUMMARY OF THE INVENTION

[0010] The object according to the present invention is to provide a fluid substance dispensing device which is improved compared with the prior art.

[0011] A further object of the invention is to provide a fluid substance dispensing device which is more convenient to use than conventional devices.

[0012] This and other objects are achieved by means of a fluid substance dispensing device produced according to the technical teachings of the appended claims.

[0013] Advantageously, the device makes it easier for the user to dispense the fluid substance.

[0014] Furthermore, it reduces the risk of unwanted dripping, outside the device, both during and after dispensing.BRIEF DESCRIPTION OF THE FIGURES

[0015] Further features and advantages of the innovation will become clearer in the description of a preferred but not exclusive embodiment of the device, illustrated - by way of a non-limiting example - in the drawings appended hereto, in which: Figure 1 is a perspective view of the device according to the present invention, in the open or dispensing position, with a container to which the device can be coupled is also partially shown; Figure 2 shows a perspective view of the device in Figure 1 but in the closed position; Figure 3 is a partially sectioned perspective view of the device in the configuration shown in Figure 1; Figure 4 is a partially sectioned perspective view of the device in the configuration shown in Figure 2; Figure 5 is a perspective view of a base element of the device; Figure 6 is a bottom-up perspective view of a movable element of the device; Figure 7 is a side view of the movable element in Figure 6; Figure 8 is an enlarged view of the detail shown in the circle in Figure 1; and Figure 9 is an enlarged view of the detail shown in the circle in Figure 5. DETAILED DESCRIPTION OF THE INVENTION

[0016] With reference to the figures stated, reference number 1 is used to denote, as a whole, a fluid substance dispensing device.

[0017] In the present document, "fluid substance" means a preferably dense fluid substance, such as a cream.

[0018] The cream dispensed by the device may be a cream for cosmetic or medical use, or a cream cleaner for homes.

[0019] For example, it may be a cosmetic cream such as a foundation, an anti-wrinkle cream, a shaving cream, a foaming cream (which expands upon contact with air to become a foam, for example for shaving), a shower gel, shaving gel, a toothpaste, etc.

[0020] The device 1 for dispensing a fluid substance comprises a base element 2 and a movable closing element 3.

[0021] The base element 2 is clearly shown in Figure 5, while the movable closing element 3 is illustrated in Figures 6 and 7.

[0022] Advantageously, both the base element 2 and the movable element 3 are made as a single piece of injection moulded plastic. PP or PE are suitable plastics for the production of such pieces.

[0023] The movable element 3 is rotatably mounted on the base element 2.

[0024] Preferably the base element 2 and the movable element 3 are snap-fitted together. For this coupling, the base element can feature one or more teeth 30 that snap-fit onto a protruding edge 31 of the movable element 3, the said edge being preferably continuous and essentially circular.

[0025] The base element 2 determines a skirt 4 on which constraining means 5 are made.

[0026] The said constraining means 5 are configured to couple (again, for example, by snap-fitting) to a container C for the said fluid substance onto which the device 1 is designed to be mounted.

[0027] The container C can feature, integrated thereinto, a pump or a valve. In the case of a valve, the container can be pressurised and the fluid substance can be housed therewithin directly inside the said container, therefore under pressure, or within a deformable bag (sealingly connected to the valve) and pressurised on the outside.

[0028] In any case, a hollow stem S can extend from both the pump and the valve. From the cavity of the stem, the fluid substance to be dispensed is supplied to the device 1 pressurised.

[0029] The base element 2 furthermore comprises a hinge 7 from which a button 6 extends. The button is preferably formed as a single piece with the base element 2.

[0030] The hinge 7 can fasten (in a movable manner) the button 6 to a structure 32 that extends, as a single piece, from the skirt 4.

[0031] This structure 32 may be the structure that also determines the aforesaid teeth 30.

[0032] The hinging 7 can be made either by reducing the thickness of the part that constrains the button 6 to the structure 32, or by exploiting the intrinsic flexibility of the plastic forming the base element 2, and more specifically of the part connecting the button and the structure 32 or the skirt.

[0033] Advantageously, on this part (which may be flexible either by nature or as a result of its shape) a dispensing port 11 (also called dispensing light 11) can be featured, as will be described below.

[0034] Specifically, the button 6 defines a conduit 9 featuring, at a first end thereof, a seat 10 configured to couple tightly to the hollow stem S described above.

[0035] As already mentioned above, the fluid substance is supplied, under pressure, through the cavity of the stem S to the device 1.

[0036] At a second end thereof, the conduit 9 features the said dispensing port 11; the dispensing port 11 opens into a cavity 12 (open to the outside) defined, at least partially, in the base element 2.

[0037] The cavity 12 is advantageously defined on the said part that makes the hinging 7 possible.

[0038] The movable element 3 defines a wall 13 endowed with a window 14, and is limitedly rotatable on the base element 2 between a dispensing position, in which the window 14 is facing the dispensing port 11 (Figs. 1 and 3) and the cavity 12, and a closed position, in which the dispensing port 11 is closed by the said wall 13 (Figs. 2 and 4).

[0039] The rotation of the movable element 3 can be limited by two stops 51 on the base element 2, which cooperate alternatively (i.e. in the closed position and in the dispensing position) with a protrusion 50 on the movable element 3.

[0040] The movable element 3 also features a stop 16 (Figs. 4 and 6) which, at least when the said movable element 3 is in the closed position, limits or prevents travel of the said button 6 by coming into contact with at least a part 18 thereof.

[0041] The stop 16 on the movable element can feature a cradle - shaped portion, which is clearly visible in both Figure 4 and Figure 6 and which houses, in the closed position, the said part 18, which is shaped like a wall. This wall 18 can be essentially curved (in a plan view), having the same shape as the button 6 in the area where the said wall is made. The wall can also feature positioning recesses that facilitate coupling with the cradle.

[0042] The cradle determined by the stop 16 can also be curved, in plan view (see Figure 6), so as to have the same shape as the wall 18.

[0043] As clearly visible in the details shown in Figures 8 and 9, a vent passage 15 can be defined in the cavity 12, the said passage connecting at least a part of the said cavity 12 with an internal compartment 19 formed in the device, the internal compartment 19 being hidden from view during use of the device 1.

[0044] The internal compartment 19 can be essentially determined underneath by the container C and above by the base element and the movable element 3. Therefore, the compartment 19 is determined between the container C and the device 1.

[0045] As visible in Figure 3, the vent passage 15 can be made completely in the base element 2.

[0046] Furthermore, the vent passage 15 can have a U shape with a concavity facing the said dispensing port 11, which can be essentially circular.

[0047] Advantageously, the vent passage 15 is provided underneath the port 11, precisely to collect residues of the fluid substance that may flow, by force of gravity, into the passage and drain into the compartment 19 (which is, remember, hidden from the user's view) when the device is oriented as shown in Figure 1 or Figure 2 (therefore, for example, when the container C is vertical - e.g. placed on a shelf-).

[0048] Advantageously, between the cavity 12 and the window 14 there is a raised rim 25, which is configured to essentially seal the said cavity 12 with the said window 14 when the movable element 3 is in the dispensing position.

[0049] Preferably the raised rim 25 is made on the base element 2, surrounding the cavity 12, and is configured to slide along the wall 13 during movement of the movable element 3.

[0050] In the example shown, the window 14 has a circular configuration, therefore the raised rim 25 also has a circular configuration wherein the diameter is slightly smaller than that the diameter of the window 14, precisely to seal any gaps in the dispensing area, between the base element 2 and the wall 13 of the movable element 3, snap-fitting into the window 14 when the movable element is rotated into the dispensing position.

[0051] Obviously, the window 14 can feature other configurations or shapes (for example oval, polygonal, etc.) and the protruding edge 25 can have a configuration corresponding to the perimeter of the window 14, precisely so as to snap-fit into the window and act as a seal.

[0052] Alternatively, the raised rim 25 can have a larger surface area than the window 14, so as to form a seal externally to the perimeter of the window 14.

[0053] A raised rim 25 is described above, which is made on the base element 2, but such raised rim may also be made (in addition or alternatively) on the wall 13 of the movable element 2 (therefore, around or along the perimeter of the window 14).

[0054] To clean the dispensing area during the rotation of the movable element 3, the latter may comprise or determine a scraper 20.

[0055] The scraper 20 may be positioned so as to slide, during rotation of the movable element 3, over a surface of the base element 2 that determines the said dispensing port 11 and / or the said cavity 12 so as to clean the said cavity and / or port by removing any residues of fluid substance.

[0056] For example, the scraper 20 can be defined by at least one rib 20 made on the said wall 13, facing the base element 2.

[0057] To conclude the description above, it is highlighted that the window 14 can be obtained in correspondence with a concave area 21 (essentially a recess) in the said wall 13.

[0058] In this way, a user can more easily collect, for example with a finger, the cream coming out of the port 11.

[0059] Various embodiments of the innovation have been disclosed herein, but further embodiments may also be conceived using the same innovative concept.

Examples

Embodiment Construction

[0016]With reference to the figures stated, reference number 1 is used to denote, as a whole, a fluid substance dispensing device.

[0017]In the present document, "fluid substance" means a preferably dense fluid substance, such as a cream.

[0018]The cream dispensed by the device may be a cream for cosmetic or medical use, or a cream cleaner for homes.

[0019]For example, it may be a cosmetic cream such as a foundation, an anti-wrinkle cream, a shaving cream, a foaming cream (which expands upon contact with air to become a foam, for example for shaving), a shower gel, shaving gel, a toothpaste, etc.

[0020]The device 1 for dispensing a fluid substance comprises a base element 2 and a movable closing element 3.

[0021]The base element 2 is clearly shown in Figure 5, while the movable closing element 3 is illustrated in Figures 6 and 7.

[0022]Advantageously, both the base element 2 and the movable element 3 are made as a single piece of injection moulded plastic. PP or PE are suitable plastics f...

Claims

1. Dispensing device (1) of a fluid substance, comprising a base element (2) and a movable closing element (3), the movable closing element (3) being rotatably mounted on the base element (2), the base element defining a skirt (4) provided with constraining means (5) configured to couple to a container of said fluid substance when the device (1) is mounted on the container, and a hinge (7) from which extends a button (6), the button defining a conduit (9) providing at a first end a seat (10) configured to mate tightly to a hollow stem, through the cavity of which said fluid substance is supplied under pressure to the device (1) when the device is mounted on the stem, and at a second end a dispensing light (11), the dispensing light (11) flowing into a cavity (12) defined at least partially in the base element (2), the movable closing element (3) defining a wall (13) provided with a window (14), and being limitedly rotatable on the base element (2) between a dispensing position in which the window (14) faces the dispensing light (11) and the cavity (12), and a closed position in which the dispensing light (11) is closed by said wall (13), the movable closing element (3) providing a stop (16) which, at least when said movable closing element (3) is in the closed position, limits or prevents the stroke of said push-button (6) by resting on at least a part thereof (18), a vent passage (15) being formed in the base element (2) inside said cavity (12), the vent passage (15) connecting at least a part of said cavity (12) with an inner compartment (19) of said device, said inner compartment (19) being hidden from view during the use of said device (1).

2. Device according to claim 1, wherein said vent passage (15) has a U-shaped configuration with a concavity facing said dispensing light (11), which is substantially circular.

3. Device according to claim 1, wherein between said cavity (12) and said window (14) is provided a raised rim (25) configured to substantially tightly connect said cavity with said window (14) when said movable element (3) is in said dispensing position.

4. Device according to the preceding claim in which the raised rim (25) is made on the base element (2), and is configured to slide on the wall (13) during movement of the movable closing element (3).

5. Device according to claim 1, wherein the movable closing element (3) comprises a scraper (20), the scraper (2) being positioned to slide, during rotation of the movable closing element (3), on a surface of the base element (2) defining said cavity (12) so as to clean it of any residue of fluid substance.

6. Device according to claim 5, wherein said scraper is defined by at least one rib (20) made on said wall (13) facing said base element (2).

7. Device according to claim 1, wherein said window (14) is formed at the bottom of a concave area (21) of said wall (13).

8. Device according to claim 1, wherein said base element (2) and said movable closing element (3) are snap-coupled together.

9. Device according to claim 1, wherein said stop (16) provides a cradle portion that accommodates, in a closed position, said part (18) that is wall shaped.

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