DE3609511A1 - EVAPORATION DEVICE FOR SEVERAL, DIFFERENT, VOLATILE SUBSTANCES - Google Patents

Description

PROF. DR. DR. J. REIJSFOTTER Ό «. WERNER KINZEBACH

■ Η-

RIDING MOTHER. KINZKBACH ft PARTNER POSTBOX 7βΟ. D-βΟΟΟ MÜNCHEN 43 PATENT LAWYERS APPROVED REPRESENTATIVES AT THE EUROPEAN PATENT OFFICE EUROPEAN PATENT ATTORNEYS

REFERENCE: RE

L'Oreal

14, Rue Royale

F-75008 Paris

phone: (oeo) 2 71 es ea CABLES: PATMONDIAL MUNICH

TELEX. Ο52152Οβ ISAR O TELEKOP: (O80) 271 60 03 (QR. Il + 111) BAUERSTRASSE 22. D-βΟΟΟ MUNICH

Munich, March 20th, 1986

OUR FILES: OUR REF:

M / 27 044 M / 27 045

Evaporation device for several different volatile substances

POSTAL ADDRESS: D-8OOO MUNICH 43. POST BOX 78Ο

260951

The invention relates to a device for releasing several different volatile substances into the environment or the atmosphere, whereby only one of these substances can be emitted at a time.

The invention relates in particular to a device with which either vapors of a Insecticidal product or vapors of an odor-absorbing product with deodorizing or odor-improving or perfuming properties can be given off.

The classic evaporation devices ^ generally have in the interior of a container on at least one plate made of an absorbent material, for example a textured material, such as felt, that is impregnated with a liquid active ingredient that slowly evaporates. The housing has recesses which ensure that air can circulate and with that inside the housing arranged platelets comes into contact. The housings are packaged together with the associated platelets enclosed so that the platelets are kept under exclusion of air during storage.

To be able to use active ingredients that evaporate very slowly, or to achieve that the active ingredients in larger amount than under the normal conditions mentioned above, it has been proposed that the to heat platelets impregnated with these active ingredients, especially when using them before a Placed heating surface. There are therefore also safety devices which have a substantially flat wall which are heated by an electrical resistor

can, which is located in a housing, which is advantageously a connector housing. This one the user can plug it directly into a socket. The housing can accommodate a removable plate, which is impregnated with the desired active ingredient. The platelets come in the use position before the one mentioned To lie on the heating surface.

The temperature to which a platelet that contains a certain active ingredient must be heated in order for it to penetrate Evaporation can be released into the environment, depends on the type of active ingredient. Must, for example a wafer with a deodorant or perfuming agent in general, so that the vapors given off by it, are heated to a temperature which is lower than that required for diffusion of Steaming an insecticidal product is required. The electrical resistance value therefore changes each time according to the active ingredient released. For this reason, on the one hand, devices that in particular suitable for taking up platelets with insecticidal active ingredients and with a resistance of a certain value Value are equipped, and on the other hand, devices that are specially designed for Ingestion of platelets with deodorant or

gO perfuming active ingredients are suitable and with a Resistor equipped with a different resistance value are.

The user must therefore use two evaporation devices gg if he wishes to use these two active ingredients to diffuse the environment. Sets the user

For example, a plate with a deodorant or perfuming agent in a device that is used for Delivery of an insecticidal product is intended, then there is the risk that the contained in the platelet Perfume evaporates too quickly. The opposite occurs when a platelet with an insecticidal product is in a Device is used, which is provided for dispensing a perfume. In the latter case there is a risk that no fumes at all from the insecticidal product are emitted.

15th
With the device according to the invention, these after-

/ parts are avoided. According to the invention, there is thus a single device for dispensing different types Active ingredients provided. In the inventive

2Q the device is not the temperature of the heating surface changes depending on the active substance present in the absorbent platelet, but the distance between the inserted plate and the heating plate is varied. The heating surface has independent of

2g the type of plate used is always the same Temperature.

According to the invention, in front of a heating element, generally a heating surface, a holder with several platelets can be arranged

₃ q are pushed, which contain active ingredients that differ from each other. The plates are arranged in the holder in such a way that each plate in each of the positions of the holder with respect to the heating element is at a distance from the heating surface which is selected in this way

"_ Is that he takes into account the active ingredient contained in the platelet wearing.

The invention is thus a device for dispensing (diffusing) a volatile active ingredient into the atmosphere through heating, and which is arranged in front of a heating surface of a wafer comprised of an absorbent material which is impregnated with a slow evaporating liquid, active product _1Q, wherein the device is characterized in that it has a holder which can accommodate a plurality of small plates which contain active substances of different types and which can assume positions with respect to the heating surface

. _c number corresponds to the number of platelets, where the lb

one or the other of the platelets at each of the positions of the holder in front of the heating surface at a distance comes to lie on this, which varies depending on the plate in question, this distance being chosen so that the platelet in question is heated to a temperature which is conducive to the diffusion of that contained in the platelet Active ingredient in the environment is required.

In a preferred embodiment of the invention

If the device is to be used, the platelets are in the holder in 25th

arranged in different parallel planes and spaced from each other. The plates are arranged in such a way that that they are kept essentially parallel to the central plane of the heating surface when the carrier is moved.

The holder is preferably displaceable in the longitudinal direction.

The heating surface is advantageously integrated into a housing. The holder slides in a slide rail stored, which is fixed and carried by the housing. The slide rail consists, for example, of one

Central part with an essentially elongated rectangular shape, the central zone of which is taken up by the heating surface and which is surrounded by two longitudinal guide grooves, each of which is arranged on the holder Can accommodate rib.

According to a preferred embodiment, each plate can be inserted into the holder by inserting it into two straight guide elements is inserted, which are arranged opposite one another and each

, _ pinching an edge of the associated plate Io

take up.

The holder can in particular accommodate two small plates, thus an insecticidal substance or a deodorizing substance and / or perfuming substance can be released,

wherein the platelets are arranged in the use position in the vicinity of the heating surface or at a distance therefrom.

According to a preferred embodiment of the invention

According to the device, the holder points two to one another Zo

side walls, each of which has a rib on the outside along one of its edges for guiding the Holder in a groove of the slide rail and on the other hand are removed at their other edge at an angle,

so that the holder is divided into two parts, oU

each of which has a U-shaped groove on the inside along its free edge, two opposite one another U-shaped grooves represent the guide elements for inserting a plate. The mentioned Side walls are connected to each other by a transverse partition, which is at the level of displacement

c or bend is located.

The central part of the slide rail can have an inscription on each of its end zones which indicates the Active substance indicates when this zone is not covered.

The device according to the invention preferably consists of a housing which has an electrical connector and includes a heating resistor which is in the immediate p. Is arranged near or inside the heating surface.

f / The invention is described in more detail below with reference to the embodiments shown in the drawings.

20th

From the drawings show:

Figure 1 is an exploded perspective view of an inventive Device for delivering two different types of active ingredients to the atmosphere or to the Surroundings,

Figures 2 front views of the one shown in FIG

ΟΛ

° and 3 device in the assembled state,

which is ready to deliver one of the two active substances mentioned.

FIG. 4 shows a sectional view along IV-IV of FIG. 2, and

FIG. 5 is a sectional view along V-V of FIG

Fig. 3.

In the figures, the reference numeral 1 designates a device with which a deodorizing and / or perfuming substance or an insecticidal substance can be released into the environment.

As can be seen in particular from FIG. 1, the device has an element 2 which is in the form of a socket has, and a second element 3 which can be attached to the first element and which has a holder for represents perfuming and insecticidal flakes, which are denoted by the reference numerals 4 and 5, respectively. Each this plate 4, 5 with a rectangular shape consists of

* ^w an absorbent material, for example felt, which is impregnated with a slowly evaporating, liquid active ingredient. When the temperature of these platelets is increased, vapors of the active product contained in them can be released into the atmosphere or to the

Write ^"0 ^ environment. The first element 2 includes a housing having substantially Parallalepipedform on. From the rear wall 6a pins 7 protrude. The housing includes a heating resistor which, when the housing 6 is connected to a circuit, an area 8 heated ,

^{ou has} the substantially rectangular shape, the dimensions corresponding to those of a plate 4, 5. This surface 8 is located in the plane of the front wall 6b of the housing 6 and represents an opening which is dimensioned in this way

is that it can accommodate the heating surface 8. 35

The front wall of the housing 6b of the housing 6 extends on the two

opposite sides by means of two identical flat walls 6c, 6d, which together with it and together with the heating surface 8 form an elongated rectangular "band" which forms the central part 9 of a slide rail 10. Each guide groove 11 of the slide rail 10 consists on the one hand of an edge 11a, which is arranged perpendicular to the central part 9 along a longitudinal edge of this central part 9 opposite the housing 6, and on the other hand of an edge 11b, which consists of an "angled recess ¹¹ above the central part 9 am The associated edge 11a thus forms two longitudinal grooves 12, the function of which is described below

The front surfaces 6c and 6d, which are inside the slide rail 10 are arranged, are each provided with a graph indicating, which Active ingredients are released from the device 1. On the wall 6c, a flower is shown, while on the Wall 6d shows an insect.

Each guide groove 11 of the slide rail 10 also carries outside a plate 13 which is perpendicular to its edge 11a is attached. The two plates 13 are identical. They make it possible for the user to use the device 1 to take. Each plate 13 has the shape of an isosceles triangle, whose base with the associated Guide groove 11 is connected. The length of the base is slightly less than the length of this one Guide groove 11. The height of the triangle is approximately 1/4 the length of the base.

g The holder 3 has two identical and mutually parallel Side walls 14. Each side wall 14 is bent outwards at an angle along one of its edges, so that a rib 15 is formed to guide the holder 3 in one of the grooves 12 of the slide rail 10, and , Q, on the other hand, is essentially in at its other edge shifted the middle to form a paragraph so that for each of the walls 14 a larger rectangular part 14a and a smaller, rectangular part 14b are formed.

, _. The two side walls 14 are together by a Intermediate wall 16 (compare Fig. 4) connected, which runs perpendicular to them and which is at the level of the mentioned shift is located. The partition wall 16 has in its lower area up to the above-mentioned displacement twice the thickness.

The two side parts 14a are along their edges which are opposite to those which carry the ribs 15 over a wall 17a connected, the edge of which, opposite to that connected to the partition wall 16, a represents central arcuate cutout 18a. This arcuate cutout 18a has substantially U shape. In the same way, the two side parts 14b are on the opposite side to the edges which carry the ribs 15 Side connected by a wall 17b, the edge of which is opposite to that with the partition 16 is connected, also has a large arcuate, central, U-shaped cutout 18b.

The oeiden parts 14a and the two parts 14b each have on the inside a U-shaped groove running along the two edges opposite those which the

g ribs 15 wear. This way there are two pairs of each other opposite U-shaped grooves 19a and 19b are present. One of the two delimiting these grooves 19a and 19b Side parts consists of the wall 17a or 17b. The two opposite grooves 19a represent an upper one ^ q Guided tour of the introduction of the active ingredient with a perfuming agent impregnated plate 4 in the carrier 3. The two opposite grooves are used in a similar manner 19b for introducing the plate 5 with an insecticidal active ingredient from below.

If a user wants to use the device 1, then he guides the platelets with a perfuming agent 4 and an insecticidal active ingredient 5 in the holder 3 by leading the first plate 4 in such a way that the

«Λ into the two opposite side edges two grooves 19a are introduced, and by having the second plate 5 guides such that the two each other opposite edges are introduced into the two grooves 19b until each of the plates 4, 5 on the partition 16 comes into play. The tiles 4, 5 stick

due to its elasticity, which is based on the texture of the absorbent material, by itself in the grooves 19a, 19b.

The so loaded with the plates 4 and 5 holder is then placed by the user in the slide 10 in the direction of the Arrow F (see Fig. 1) introduced. The user proceeds so that that part of the holder 3, the is first inserted into the slide rail 10, the

_{oc contains} platelet 5 with the insecticidal active ingredient. Every

Rib 15 of this holder 3 engages in a groove 12 of this slide rail 10. The grooves 12 and the ribs 15 are dimensioned so that the holder 3 can slide in the slide rail 10 with a certain amount of friction. To this In this way, the holder 3 in the slide rail 10 can take the position in the slide rail 10 given to it by the user take in.

If the user wishes, for example, that a perfume is released into the room air, then he pushes the holder 3 _f until the plate 4 with the perfuming agent is in front of the heating surface 8 of the element 2 (compare FIG. 3). In this position, the upper front surface 6d, on which an insect is depicted, is covered by the part of the holder 3 which contains the plate 5 with the insecticidal active ingredient which is not used. The image of a flower is visible on the wall 6c, which indicates that the carrier 3 is in a position in which an odor-improving active ingredient is released.

If the user wishes to let the insecticidal active ingredient escape, then it is sufficient to place the holder 3 in the To move the slide rail 10 in such a way that the plate 5 with the insecticidal active ingredient is in front of the heating surface 8 comes to rest (compare Fig. 2). In this position the remaining part of the holder 3 covers, which contains the plate 4 with the odor-improving active ingredient and which is not in use, the wall 6c, while the wall 6d with the representation of an insect is exposed, thereby indicating that the Holder 3 is in a position in which the insecticidal

Active ingredient is released.

The user then connects the device 1 to the circuit. The heating coil 8 is heated to a temperature of about 180 ⁰ C. At this temperature, both vapors of the insecticidal active ingredient from the platelet 5, if this is in the place of use near the heating surface 8 (at a distance of a few mm), and vapors of the odor-improving and / or deodorant active ingredient from the platelet 4, which is in the Use position is spaced about a dozen of mm from the heating surface 8, released to the environment.

The two ribs are advantageously different 15 of the holder 3 and consequently also the two grooves 12 of the slide rail 10 from one another in such a way that the holder 3 can only be inserted into the slide rail 10 in one direction. For example, it is possible that one of the two ribs 15 is thicker than the other. It is also possible that on the inner wall of the edge 11a one of the Guide grooves 11 of the slide rail 10 is a longitudinal groove that can receive a longitudinal rib, which is in turn attached to the outer surface of one of the ribs 15 of the holder 3. Under these circumstances is yourself the user is completely safe, provided that he has correctly inserted the plates 4 and 5 into the holder 3, that the representation visible on the central part 9 of the slide rail 10 at a position of the holder 3 is accurate corresponds to that active ingredient that is used in this position of the holder 3.

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Claims (5)

Claims 1. Evaporation device for a volatile, slowly evaporating active ingredient with a plate made of a absorbent material containing the active ingredient is impregnated and which is arranged in front of a heating plate,
characterized, that it has a holder (3) which can accommodate several platelets (4, 5) containing different types of active ingredients and can assume positions with respect to the heating surface (8), the number of which corresponds to the number of platelets (4, 5), with one or the other of the platelets (4, 5) in each of the positions of the holder (3) in front of the heating surface (8) comes to lie at a distance therefrom which varies depending on the respective platelet (4, 5), wherein this distance is selected such that the plate in question (4, 5) is heated to a temperature "is _5, which is required for diffusion of the active substance contained in the platelet into the environment. 2. Apparatus according to claim 1, characterized in that the plates (4, 5) in the holder (3) in .ifferent Parallel planes are arranged, which are spaced from each other in space, wherein the plates (4, 5) when moving the holder (3) held essentially parallel to the central plane of the heating surface (8) will. INSPECTED 3. Device according to claim 2, characterized in that that the holder (3) is displaceable in the longitudinal direction with respect to the heating surface (8). 4. Apparatus according to claim 3, characterized in that the heating surface (8) is integrated into a housing (6) is, the holder (3) slidingly mounted in a fixed slide rail (10) attached to the housing (6) is. ,G 5. Apparatus according to claim 4, characterized in that that the slide rail (10) consists of a central part (9) which has an elongated rectangular shape, its central zone being occupied by the heating surface (8) and that of two longitudinal ones 2Q guide grooves (11) is bordered, each one can accommodate the rib (15) located on the holder (3). 6. Device according to one of claims 1 to 5, characterized »characterized in that each plate (4, 5) in the holder 3. Can be attached by placing it between two opposite one another arranged "straight" guide elements (19a or 19b) is inserted, each one edge of the associated platelet (4, 5) by clamping. 7. Device according to one of claims 1 to 6, characterized in that the holder can (3) two plates (5 and 4) accommodate, so that an insecticidal substance or a deodorizing and / or perfuming _o _ substance is discharged, said plates (5 and 4) in the position of use of the heating surface (8) loading are spaced or are arranged in the vicinity of this heating surface (8). 8. Device according to claims 5, 6 and 7 together, characterized in that the holder (3) two to each other has lateral surfaces (14), each of which on the one hand outside along one of its edges Rib (15) for guiding the holder (3) in a groove (12) of the slide rail (10) and on the other hand is angled at its other edge, whereby the support is divided into two parts (14a and 14b), of each of which has a U-shaped groove along its free edge inside, the two opposite one another U-shaped grooves represent the guide elements (19a or 19b) for the introduction of a plate (4, 5) and wherein the side walls (14) are interconnected by a transverse partition (16) which is at the level of the bend. 9. Apparatus according to claim 8, characterized in that the central part (9) of the slide rail (10) each of its end zones (6c, 6d) has a label indicating the active ingredient used, if this Zone (6c, 6d) is not covered. 3010. Device according to one of claims 4 to 9, characterized characterized in that the housing (6) has an electrical connector and a heating resistor, which is in is in the immediate vicinity or inside the heating surface (8).