MC1606A1 - DIFFUSER OF VOLATILE PRODUCT PROVIDED WITH A SUBSTRATE WITH MODULAR REGENERATION - Google Patents

Description

9AL

.85.1606-1 JUL 1? 33 £

PATENT OF IiW5?;TI0N Mr. Jean-Paul PESSIKCPT

VOLATILE PRODUCT DIFFUSER WITH A MODULAR REGENERATION SUBSTRATE

The present invention relates to the diffusion of volatile product which may consist of components, odorant, deodorizing, bactericidal, insecticide intended to treat the ambient air of a passenger compartment.

The invention relates more particularly to an apparatus equipped with means for dosing the 5th regeneration of an absorbent substrate, in relation to the required volatilization, so as to provide either a slow diffusion for constant treatment, or to be able to provide at any time a larger dose suitable for rapid treatment.

The invention describes several variants, intended for different diffusers comprising an absorbent substrate and means for dosing its regeneration.

10. Many devices are known for diffusing volatile products to spread a pleasant odor, in order to deodorize, perfume and purify the ambient air. French patents 1.374.64-0 - 1.374.670 - 2.191.535 - 2.229.425 - 2.310.773 - 2.326.349 - 2.336.946 - 2.464.719.

United States patents 2,657,090, 3,790,081, 4,014,501, 4,197,271, 4,208,012 describe dispensers emitting volatile products integrated into gels or absorbent materials placed in a casing equipped with ventilation means. Firstly, these devices are only effective in their initial phase, where the volatile product can be emitted in sufficient quantity.

Secondly: their duration of effectiveness is very limited since the product evaporates 20% quickly when it comes into contact with air.

Thirdly: with these devices, the products are only diffused by the free passage of air; for treating a large volume, their effectiveness is limited because they lack a means of expelling a higher dose at any time.

2

This is important, yet desirable in the presence of mosquitoes or unpleasant odors such as tobacco smoke and cooking smells. A few years ago, aerosol products were used for these applications; U.S. patents 2,914,222 and 2,966,283 describe this technique, which is now practically obsolete for fragrances and deodorants, given that these devices tend to be unfairly expensive and that most propellants present certain health hazards. It is also considered that the excessive use of these propellants could be dangerous for the future due to their potential impact on the ozone layer.

10 United States patent no. 3,412,907 describes a case formed by two perforated concave discs, containing a material impregnated with aromatic product, by compressing the discs the air charged with volatile product is expelled.

United States patent no. 06174326 of 1980, filed in France under no. 2,487,689, describes a dispenser capable of immediately delivering a dose of a volatile substance. The base forms a bellows surmounted by a housing containing an element impregnated with the volatile substance. The action of the drawn air is only effective to the extent that the device can release a certain quantity of the volatile product. Given that the impregnated materials have a very limited duration of effectiveness, it is self-evident that the duration of effectiveness will be further reduced when subjected to ventilation.

20 The devices mentioned have little or no common ground with the description in this document, except that they diffuse products for treating ambient air. Indeed, they differ in that they do not include a means of regenerating the impregnation of their absorbent material.

A flexible-walled container with 25 internal prongs for piercing a capsule is available on the market. This device does not allow for adjusting or interrupting the impregnation process; once pierced, the product continues to flow, initially providing saturation which is quickly followed by a progressively reduced flow rate, and ultimately a very limited duration of effectiveness, as the reservoir must be small to prevent leakage.

25. English patent no. 1,544,410 describes a scented device designed to be suspended. It comprises a casing containing a capsule that must be pierced with a pin to allow the solution to be dispensed onto an absorbent material. A threaded element compresses the capsule to increase the flow of the product. This device has no flow control, and once the reservoir is pierced, it is no longer possible to stop the flow; the diffusion is very irregular, resulting in a limited duration of effectiveness.

3

Japanese patent 55.98A60, filed in France under number 2,486,402, describes a fragrance-emitting device. It comprises a reservoir placed above a spongy material that becomes saturated after the reservoir is perforated. This device does not allow for adjustment of the liquid flow rate; instead, adjustment is made by a flap that modifies the evaporation of the absorbent material.

French patent 1,316,894, dated 1962, describes a diffuser consisting of a perfume bulb and an absorbent material encased in a relatively rigid substance. This diffuser, available on the market, consists of a cardboard support with a pierceable bulb that saturates a felt pad. It lacks a flow rate adjustment and a means of stopping the liquid flow. Once pierced, it continues to leak, resulting in an irregular and uncontrollable diffusion. Initially, the high level leads to saturation, followed by insufficient release, resulting in a limited duration of effectiveness. However, the patent also provides, in a variant, for adjusting the height of the orifice relative to the perfume level; however, no usable technical instructions are given for achieving a functional adjustment. On the contrary, this document even specifies, for example, that the bulb is mounted rotatably within a circular opening, which leads the specialist to disregard the solution conforming to the invention described herein. Indeed, since the bulb's rotation is unlimited, it can complete several revolutions, and lacking an index, it is impossible to determine the position of the orifice, rendering the adjustment device unsuitable for actual operation.

Japanese utility model no. 10700/80 - 104435/80 - 10699/80 - 122736/80 describe containers which allow the evaporation of a solution from a wick which 25 dips directly into the product.

Japanese utility models 119846/79 and 120246/78 describe containers with a wick topped by an absorbent disc. None of these devices have any means of adjustment, they are unsightly, and they pose a risk of leakage if the container is tipped over. Furthermore, they do not ensure proper diffusion, and if the solution is not perfectly homogeneous, it quickly loses its fragrance.

Japanese utility models Nos. 59638/80 and 70962/73 describe devices with a flexible container that must be compressed to transfer the solution to an absorbent material. These devices require flexible containers, which necessitate the use of plastic materials incompatible with the preservation of most aromatic products, and they do not allow for rational control of impregnation or volatilization.

4

Japanese patents 74830/81, 71915/81, and 71916/81, filed in France under number 2,506,173, describe a container for an evaporable product. These containers consist of an absorbent material impregnated with the solution, which is dispensed drop by drop through a capillary siphon. This siphon must be primed by activating a device that creates a vacuum. This device has several drawbacks. Once the impregnation process has begun, the user may forget to activate it, resulting in saturation or even overflow of the product. The device designed for continuous impregnation must provide a very low flow rate, which requires a siphon with a very small capillary orifice and products of a precisely defined viscosity. Most of the products used tend to form a deposit that clogs small orifices when they are not dispensed by a propulsion system. The siphon priming principle and capillary difficulties do not allow for reliable diffusion, moreover this device cannot immediately deliver a larger dose.

Devices that diffuse volatile products with the cooperation of either a heating or a ventilation system are also known; these devices are not mentioned since their design and applications are very different from those of the present invention, which aims to remedy the aforementioned drawbacks.

The goal is achieved according to the present invention by creating a volatile product diffuser equipped with a modularly regenerating substrate. It comprises a variable-aeration housing 20 equipped with means for adapting an absorbent substrate so that it is more or less impregnated by the arrival of variable doses supplied by the contents of a reservoir equipped with means for removably coupling to said housing. The reservoir is made of a material inert to the aromatic product, allowing the product level to be seen, which is correlated either with an index or with a 25 graduation. The housing is formed by several walls, one receiving the reservoir and the other containing the aeration means. The device is equipped with a device for varying the impregnation that regenerates an absorbent substrate in relation to the required volatilization and for interrupting it during periods of non-use. For certain applications, the impregnation setting is synchronized with the aeration flap 30 to automatically adjust upon commissioning of the device so as to provide regeneration substantially proportional to the opening of the flap. The adjustment of the aeration and The impregnation of the absorbent substrate considerably modifies the emission of the product so as to provide either a slow diffusion suitable for constant treatment, or to be able to deliver at any time a larger dose suitable for rapid treatment.

Since the substrate regeneration methods apply to different types of diffusers, several variants are described.

Application variant A: concerns a diffuser equipped with a modularly regenerating substrate particularly suitable for vehicles. H includes a housing that allows

5

In its upper part, a perforator is fitted, which moves linearly parallel to the rear wall of the tank. Its sliding motion is ensured by a sliding mechanism that allows perforation at a precise point.

Application variant B: the device has a boftier equipped with a fixed perforator 5 adapted so that the positioning of the reservoir produces, simultaneously, the adjustment of the substrate regeneration, the perforation and the obstruction of the orifice in periods of non-use.

Application variant C: the device has a sector-shaped reservoir with a surface area less than a semicircle; its positioning varies the level of the product 10 intended to flow through an axial orifice formed by a perforator having a displacement perpendicular to the rear wall of the reservoir.

Application variant D: the mobile tank is fitted into the face of a housing which has a central circular recess so that part of the tank is integrated into the thickness of the housing, the ventilation openings are located 15 on its perimeter which is formed by an oblique wall whose inclination converges towards the axial point of the face of the tank, the rear wall is integral with the ventilation flaps, the edge of the housing allows the suspension element to be anchored which is locked by the adaptation of the rear wall.

Application variant E: the device has a reservoir equipped with a 2C plunger element which supplies a pump system for impregnating a suitable substrate in a variable volume container equipped with a mechanism which, by applying pressure, alternately switches the device on or off and simultaneously positions the ventilation ports and expels the product-laden air.

Application variant F: concerns a diffuser equipped with a modular regenerating substrate 25 comprising a plunger element with an adjustment device adapted between the reservoir and the absorbent material; it is formed by a movable part equipped with absorbent pads intended to come into more or less contact with the plunger's supply points, so as to transmit a quantity to the absorbent substrate

6

Variable product, in a determined position the moving part ensures the sealing of the supply points; a certain number of pads can successively come into function; the adjustment is made either independently or in conjunction with i

with the ventilation flap so as to produce an impregnation proportional to 5 the opening of the flap.

The features of the invention will become clearer in particular from the following descriptions, given by way of non-limiting examples and made with reference to the accompanying drawings, which are shown:

Fig. 1

a front view of a positionable circular reservoir diffuser

Fig. 2

a longitudinal section of the case stripped of its parts

Fig. 3

Rear view of the case stripped of its parts

Fig. 4

a rear view of the tank

F/g. 5

absorbent substrate

Fig. 6

removable back element

15 Fig. 7

longitudinal section of the diffuser at an enlarged scale

Fig. 8

Front view of a static internal perforator diffuser

Fig. 9

Cross-section of the diffuser in Fig. 8

Fig. 10

Internal view of the case

Fig. II rear view of the tank

20 Fig.12

Front view of a diffuser equipped with a sector-shaped reservoir

Fig. 13

view of a cross-section of fig. 12

Fig. 14

Internal view of the case without its accessories

Fig. 15

front view of the element forming the absorbing substrate

Fig. 16

Cross-section of a diffuser with a reservoir equipped with a sealing element

25 Fig. 17

Enlarged cross-section of a tubular drill

Fig. 18

variant of a sector-shaped reservoir incorporated into the substrate

Fig. 19

cross-section of fig. 18

Fig. 20

Views of the reservoir forming a floral relief design

Fig. 21

Boftier with a central recess for tank adaptation

3C Fig.22

cut of the case stripped of its accessories

Fig. 23

Cross-section of a diffuser with a horizontal substrate regenerated by spraying

Fig. 24

cross-section of a vertical substrate diffuser

Fig. 25

diffuser with variable volume housing in the closed position

Fig. 26

Cross-section of a diffuser equipped with a variable volume housing

35 Fig.27

Cross-section of a diffuser regenerated by gravity using a pump

Fig. 28

gravity-regenerated diffuser variant

Fig. 29

diffuser having its upper wall formed by a bellows

Fig. 30

cross-section at an enlarged scale of the absorption regeneration system

Fig. 31

plan of the moving part that ensures the sealing adjustment

7

Fig. 32: Diagram of the part attached to the plunger element

Fig.33: Cross-section of the diffuser assembly shown at a reduced scale.

i

Plate I - R. 1 and 2

The housing 1 includes a removable element 2 allowing the adaptation and guidance 5 of a reservoir 3 which has a delimited displacement over a sector of approximately 180°, its positioning is indicated by an index 4 which cooperates simultaneously with the liquid level 5 and a graduation 6, a ratchet or braking means stabilizes it in its different positions, its periphery has a prominence forming a perforable membrane 7, a determined positioning allows it to come into contact 10 with a perforator 8 arranged parallel to the rear wall of the reservoir 3, a guiding means 9 and 10 allows a precise point to be perforated and to be blocked during periods of non-use, by the movement of the perforator, which makes a linear movement parallel to the rear wall of the reservoir. At the end of production, the movement of either the perforator or the reservoir is locked 15 by a safety tab from the molding and connected to a part of the casing by dotted lines which must be broken for the commissioning of the diffuser.

The housing 1 has an opening formed by two semicircles of different diameters. Their junction produces stops 11 and 12 against which a lug 13, integral with the reservoir, rests. This lug is related to an index 4, which cooperates with a graduation 6 to indicate the positioning of a perforable protrusion 7. This protrusion moves within a sector delimited by the stops, so as to establish or interrupt the flow of the product 5. This product regenerates the absorbent substrate 14, providing vaporization through orifices 15 fitted with a flap 16, allowing their cross-section to be varied until they are substantially sealed. The upper part 25 of the housing is fitted with a molded suspension element. One of its sides can be detached to allow its adaptation to different parts, such as a rearview mirror support rod.

Plate II - R. 4

The reservoir 17 is adapted to the housing 18 by the engagement of a part 19 equipped with a bayonet locking mechanism 20/21 and a stop 22/23 which limits the movement in order to simultaneously ensure the perforation of a protrusion 24 and its positioning so as to regulate the regeneration of the substrate 25. The movement of the reservoir allows the protrusion 24 to come into contact with a perforator 26 fixedly mounted in the housing 18 and arranged parallel to the rear wall of the reservoir so as to

35'

that its tip is located approximately at the top dead center of the prominence 24, which allows the commissioning perforation and the obstruction to be produced by the simple movement of the reservoir intended to regulate the regeneration of the substrate 25

8

which produces a volatilization through the openings 27 equipped with a movable flap 28, allowing their section to be varied until the seal is ensured.

The inner part of the housing has ribs 23 arranged in a circle and forming crenellations which simultaneously ensure a) the maintenance of the substrate under pressure against the rear wall of the reservoir b) the stabilization of the reservoir in its various positions c) the free passage of air as well as homogeneous impregnation of the substrate. The upper part of the housing 18 is provided with a suspension element 30 whose ends have a bulge 31 designed to fit into an orifice 32 to be locked by the coupling of the part 19.

10 Plate III - R. 5

The reservoir 33 forms a sector with a surface area less than a semicircle and includes a perforable membrane 34 located at the axial point where the lateral walls 35/36 converge; it is provided with means for coupling to the housing 37 so as to be positioned on a displacement of at least 180° and to produce its 15 uncoupling when it arrives in the position of the end of flow. Indeed, in this position, the side wall 36 comes into contact with the stop 38. Continuing the rotation to the left causes the movement of the ring 39, which unlocks the bayonet-type elements W, fitted into the openings 41. The ring 39 is released with the reservoir 33, which is held in the basin 42 by locking lugs 43 20. A scale cooperates with an index 44 to indicate the positioning of the reservoir 33. The movement of the reservoir 33 varies the level of the product 45, intended to flow through the central opening, formed by an axial perforator 46 that has a linear movement perpendicular to the rear wall of the reservoir. The perforator 46, formed by a steel wire, has a movement provided by the flexibility of the perforated wall 47 25, which receives a movable flap 48. The substrate 49 is held by ribs 50 and ensures the stabilization of the different positions of the reservoir 33.

Plate IV - R. 5 and 6

The housing 51 includes a means for adapting a positionable reservoir 30 52. It is equipped with a perforable membrane 53 formed by a sealing element 54 which helps to retain the substrate 55. A guide piece 56 allows the passage of a perforator 57 formed by a steel wire. The side opposite the pointed part is equipped with a control button 58. Figure 18 shows, at an enlarged scale, the sealing element 54 equipped with a perforator formed by a tubular needle 35 having a perpendicular orifice 59 communicating with its longitudinal channel. The side opposite the pointed part is obstructed, either by the control button or by the connection with the ventilation flap, so as to synchronize

9

Its action with the operation of the device. After the passage of a perforator through a flexible plugging element, the orifice is practically obstructed; to avoid this problem, a tubular needle with a perpendicular orifice 59 is used. The orifice is located inside the i

5 reservoir 52 we obtain the seal, while placed outside the perforable membrane 53 it impregnates the substrate 55.

Figures 18 and 19 represent another embodiment produced with a sector-shaped reservoir 61. It is interposed to circular walls 62 in which an absorbent substrate 63 is integrated, occupying the sector opposite the reservoir 10. The periphery is preferably connected by a welding means. The two sectors are hermetically sealed. The reservoir has a perforable membrane 64. The device is designed to fit onto a support allowing it a movement of approximately 180° so as to vary the level of the product relative to the substrate in order to establish or interrupt impregnation.

15 Plate V - R. 6 and 7

For some applications it is preferable that the rear wall of the boftier does not have ventilation, and also to have a decorative reservoir that protrudes little from the boftier. Figure 20: To meet these standards, the reservoir forms a raised floral decoration 65 which has a central part set back from the periphery, 20 where the petals end, the tips of which form grooves 66 around the perimeter. Figures 21/22: The face of the tank 67 has a central circular recess 68 so that part of the reservoir is integrated into the thickness of the tank. The ventilation openings 69 are located on its periphery, which is formed by an oblique wall whose inclination converges towards the axial point of the face of the tank. The rear wall 70 is integral with the ventilation flaps. Its internal part is equipped with means to cooperate in the adaptation of the reservoir. The edge of the tank 67 allows the suspension element 71 to be anchored, which locks by the adaptation of the rear wall 70.

Plate VI — R. 8 and 9

30 Figure 24 represents the cross-section of a device allowing the coupling of a plunger element which supplies a pump system 72 intended to regenerate an absorbent substrate 73 by vaporizing a dose of volatile product to it.

By applying pressure to the upper part of the boftier 74, the spring 75 is compressed and the pump 72 vaporizes a dose of product onto the substrate 73. The stop 35 76 limits the stroke of the pump; by increasing the pressure on the boftier, the piston 77 progressively obstructs the orifices 78. The reduction in the volume of the volatilization chamber expels the air laden with volatile product.

As the cylinder rises, the substrate 73 continues to provide slow diffusion. Figure 24 shows a cross-section of a diffuser equipped with a substrate 79 arranged

10

Vertically, it is regenerated by spraying by applying pressure to pump 80; volatilization takes place through orifices 81 fitted with a flap 82. Figure 25 shows a diffuser formed by a variable volume housing 83

i equipped with a piston 84 coupled to a reservoir 85 which, in the closed position 5, is integrated into the casing. Figure 26 represents another type of casing; it comprises a tubular element 86 which cooperates with a piston 87 to form a variable volume casing, equipped with a mechanism allowing, by pressure, the operation or shutdown of the device to be alternately established and simultaneously the positioning of the ventilation orifices 88, the closure 10 of which produces a reduction of the casing which expels the air which has become laden with volatile substance. The upper part of the housing is fitted with a ring 89 whose adaptation locks the tubular element 86 to the circular part 90 containing the substrate 91 regenerated by the spray of the pump 92, which is supplied by the product contained in the reservoir 93. It is controlled by a manual lever 15 that is flush with one of the ventilation openings 88 (the control lever is not shown in this drawing). The housing is held in the open position by springs 94 that connect the piston 87 to the base of the tubular element 86. To close the housing, pressure is applied to its upper part, which causes the springs 94 to extend. The piston 87 then blocks the openings 88. The hooks 95 20 push the movable ring 96 and engage with the notches 97, which hold the housing in the closed position. To obtain the opening, a new pressure is exerted which makes the hooks 95 rise on the mobile ring 96; they pass over its shoulder 98, releasing the case; under the effect of the springs 94, it rises, the hooks 95 lower the ring onto the notches 97, which allows them to pass 25 without producing their catch.

Plate VII - R. 7, 8 and 9

Figure 27 shows a device with a variable-volume housing 99 and a pump system 100 that delivers a dose of product to an upper point, allowing it to spread by gravity onto a substrate 101. The upper wall 30 of the housing contacts the element 102 to actuate the pump, which delivers a dose of product that is distributed in droplets onto the substrate through various channels opening onto the periphery of the distribution element 102. Figure 28 shows a gravity-regenerated diffuser. It has a reservoir 103 coupled to a housing 104 containing a substrate 105. The substrate 105 is regenerated by a pump 106, which is controlled by a push button 107 located on the housing wall. The housing has variable ventilation provided by a movable flap 108. Figure 29 shows a device substantially identical to that of Figure 28. 28. The pump system 109 is actuated by a wall of the housing which is formed by a flexible diaphragm 110 whose action produces

11

Simultaneously, the impregnation of the absorbent material 111 and a reduction in the volume of the volatilization chamber allows the air laden with volatile substance to be expelled.

Plate VIII - R. 10

Figure 30 shows an enlarged cross-section of the regeneration adjustment system of a wick-effect diffuser. Figure 31 shows a plan view of the moving part that adjusts the seal. Figure 32 shows a plan view of the part attached to the plunger element. Figure 33 shows a reduced-scale cross-section of the diffuser assembly.

10 The plunger element 112 includes an adjustment device adapted between the reservoir 113 and the absorbent substrate 114, it is formed by a movable part 115 provided with absorbent pads 116 connected to the substrate and intended to come into more or less contact with the supply points connected to the plunger element 112, so as to transmit to the substrate 114 a variable quantity of product, in a determined position 15 the movable part 115 ensures the sealing of the supply points, to provide progressive regeneration the collector 118 is provided with a certain number of pads 117 119 120 formed and arranged so as to come into function successively. A lug 121 delimits the movement of the moving part 115, which has two stops 122 which is the position where all the pads are 20 in connection to provide a maximum flow and the stop 123 which is the sealing position, a graduation allows to determine the intermediate positions, it goes without saying that the moving part can also have a linear movement. Part 118 is fixed to the plunger element 112, which is itself connected to the sealing element 124. The movable part 115 is pressed against part 118 by means of a spring 125. The adjustment is made either independently or in conjunction with the ventilation flap so as to provide impregnation in relation to the opening of the flap 126, controlled by the element 127, which simultaneously moves the movable part 115 and the openings 128, which come into opposition or coincidence with the openings 129.

12

1. A volatile product diffuser equipped with a modulating regeneration substrate for ambient air treatment, comprising a variable-ventilation housing characterized in that it is equipped with means for adapting an absorbent substrate so that it is more or less regenerated by the arrival of variable doses.

5 supplied by the contents of a reservoir equipped with means for removably coupling to said casing, the reservoir is made of an inert material to the aromatic product allowing the product level to be seen, which is correlated either with an index or with a graduation, the casing is formed by several walls, one receives the reservoir and the other contains the ventilation means, the device is equipped with a device allowing the impregnation of the absorbent material to be varied in relation to the desired volatilization and to be interrupted during periods of non-use, for certain applications, the impregnation setting is synchronized with the ventilation flap to automatically set itself when the device is put into operation so as to provide a regeneration substantially proportional to the opening of the flap, the adjustment of the ventilation and impregnation of the absorbent material considerably modifies the emission of the product so as to provide either a slow diffusion suitable for constant treatment, or to be able to deliver at any time a A larger dose suitable for rapid treatment.

2. Volatile product diffuser according to claim 1, characterized in that the 20 housing comprises a removable element allowing the adaptation and guidance of a reservoir which has a delimited displacement over a sector of approximately 180°, its positioning is indicated by an index which cooperates simultaneously with the liquid level and a graduation, a ratchet or braking means stabilizes it in its different positions, its periphery comprises a perforable prominence, a determined positioning 25 allows it to come into contact with the perforator which has a linear displacement parallel to the rear wall of the reservoir, its sliding is ensured by a guiding means allowing it to perforate a precise point and to obstruct it during periods of non-use, at the end of production the movement of either the perforator or the reservoir is locked by a safety tab 25 coming from the molding and connected to a part of the housing by dotted lines which must be broken for the commissioning of the diffuser.

13

3. Volatile product diffuser according to claim 2, characterized in that the casing has an opening formed by two semicircles of different diameters, their junction produces stops on which a lug attached to the reservoir comes to rest and which is related to an index which cooperates with a graduation to indicate the positioning of a perforable prominence which moves in a sector delimited by stops so as to establish or interrupt the flow of the product which regenerates the absorbing substrate to provide volatilization through orifices fitted with a flap allowing their section to be varied until substantially sealing is ensured.

4. Volatile product diffuser according to any one of the claims, characterized in that the perforator is fixedly mounted in the boftier and arranged parallel to the rear wall of the tank so that its tip is located substantially at the top dead center of the prominence, which makes it possible to produce the commissioning perforation as well as the occlusion by the simple movement of the tank intended to regulate the regeneration of the substrate.

5. Volatile product diffuser according to any one of the preceding claims, characterized in that the reservoir forms a sector with a surface area less than a semicircle and comprises a perforable membrane produced either by the wall of the reservoir or by a sealing element located at the axial point where the lateral walls converge, it is provided with a means for coupling to the housing so as to be positioned on a displacement of at least 180° and to produce its disengagement when it reaches the end-of-flow position, a graduation cooperates with an index to indicate the positioning of the reservoir whose displacement varies the level of the product, intended to flow through the central orifice, produced by an axial perforator formed either by a steel wire or by a tubular needle having at least one perpendicular orifice communicating with its longitudinal channel, the side opposite the pointed part is connected either to a control button or to the ventilation flap.

6. Volatile product diffuser according to any one of the claims, characterized in that the reservoir forms a raised floral decoration which has a central part set back from the periphery, where the petals end, the ends of which form grooves around the perimeter which facilitate adjustment.

14

7. Volatile product diffuser according to any one of the claims, characterized in that the mobile reservoir is fitted into the face of the boftier which has a central circular recess so that a part of the reservoir is integrated into the thickness of the boftier, the ventilation openings are located on its periphery which is formed by an oblique wall whose inclination converges towards the axial point of the face of the reservoir, the rear wall is integral with the ventilation flaps, its internal part is provided with means to cooperate in the fitting of the reservoir, the edge of the boftier allows the suspension element to be anchored which is locked by the fitting of the rear wall.

10 8. Volatile product diffuser according to claim 1, characterized in that it comprises a means for coupling a plunger element which supplies a pump system intended to regenerate an absorbent substrate, either by vaporizing a dose of product onto it, or by bringing the dose of product to a higher point to allow it to spread by gravity; The pump system is 15 manually operated by exerting pressure on a part of the device.

9- Volatile product diffuser according to claim 1, characterized in that it comprises a movable tubular element which cooperates with a piston to form a variable volume casing, equipped with a mechanism allowing, by pressure, to alternately establish the operation or the stop of the device and 20 simultaneously the positioning of the ventilation orifices whose closure produces a reduction of the casing which expels the air which has become charged with volatile substance.

10. Volatile product diffuser according to claim 1, characterized in that the plunger element comprises an adjustment device adapted between the reservoir and the absorbent substrate, it is formed by a movable part provided with absorbent pads 25 intended to come into more or less contact with the feed points of the plunger, so as to transmit a variable quantity of product to the substrate, in a determined position the movable part ensures the sealing of the feed points, to provide progressive regeneration the collector is provided with a certain number of pads intended to come into function successively, the adjustment 30 is carried out either independently, or in connection with the ventilation flap so as to provide regeneration in relation to the opening of the flap.

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