WO2000056373A1

WO2000056373A1 - Aroma production device

Info

Publication number: WO2000056373A1
Application number: PCT/GB2000/000943
Authority: WO
Inventors: David Albert Taylor
Original assignee: Smoke Design Ltd
Priority date: 1999-03-19
Filing date: 2000-03-17
Publication date: 2000-09-28
Also published as: AU3439600A; AU3303200A; WO2000056372A1

Abstract

An aroma production device is described. The device includes a reservoir for an aroma producing oil composition, an outlet for the aroma in gas communication with the reservoir and an aroma production means. The aroma production means comprises an ultrasonic frequency transmitter. A method of providing an aroma is also described. Preferably, the ultrasonic frequency transmitter is an ultrasonic transducer located in the reservoir. The angle of the transducer may be configured to send ultrasound waves at a specific angle with respect to the surface of the oil composition located within the reservoir.

Description

AROMA. PRODUCTION DEVICE

The present invention relates to an aroma production device and, in particular, but not exclusively to an aroma production device which utilises aromas derived from herbal, aromatherapy, essential, deodorising or perfumed oils or mixtures thereof.

Such devices are commonly used because of their known beneficial effects. Generally, the manner in which such aromas are produced is by the application of direct heat via a flame or heating element to the oil to cause the oil aroma to rise into the environment. However, it is understood that only 35% of the oils goodness or fragrance is released by this method.

According to a first aspect of the present invention there is provided an aroma production device comprising a reservoir for an aroma producing oil composition, an outlet for the aroma in gas communication with the reservoir and an aroma production means, wherein the aroma production means comprises an ultrasonic frequency transmitter.

According to a second aspect of the present invention there is provided a method of providing an aroma comprising the step of : -

filling a reservoir in or for an aroma production device in accordance with the first aspect of the present invention with a suitable oil composition; and activating the said transmitter.

Preferably, the ultrasonic frequency transmitter is an ultrasonic transducer.

Preferably, the transducer is located in the reservoir.

Preferably, the angle of the transducer is configured to send ultrasound waves at a specific angle with respect to the surface of the oil composition located within the reservoir, preferably, the angle of propagation of ultrasound waves is at least 9°, more preferably, at least 10.1°, most preferably, at least 11.2°.

Preferably, the angle of propagation of ultrasound waves with respect to the surface of the liquid in the reservoir is less than 16°, more preferably, less than 15°, most preferably, less than 13.7°.

Preferably, the angle of propagation of ultrasound waves is between 9-16°, more preferably, 10.1-15°, most preferably, 11.2-13.7°.

Advantageously, it has been found that by exciting the molecules of the oil composition using ultrasound, the molecular size profile of the vapour generated is altered and improved releasing both lighter and heavier molecules of the oil from the composition. Conventional techniques using flame or heater elements have a profile in the vapour with relatively lower levels of the larger molecules. The effect is particularly marked by using a transducer set at the angles indicated. An increase in the vaporisation of the heavier molecules in the oil composition improves the beneficial effects of the oil.

The transducer operates at a suitable ultrasonic frequency, preferably 1.2-3Mhz, more preferably, 1.4-2.0 Mhz, most preferably, 1.5-1.7 Mhz, especially in the region of 1.6Mhz. Preferably, a baffle is located above the reservoir. Preferably, the baffle is designed to assist the production of a mist above the reservoir.

Advantageously, by the use of ultrasound and the baffle a fine and uniform mist is produced which would not be possible by using conventional heating means such as flame or heating elements.

Preferably, a gas impeller directs air into the mist to displace the mist through the outlet. Preferably, a fan is provided to direct the air and the fan is suitably positioned to direct the air into the mist and in the direction of the outlet.

By using the transducer in the way indicated, particularly by angling the transducer in the manner indicated, the effect is to produce controlled, continuous and novel vaporisation characteristics. The transducer has a low noise output and low power consumption it also advantageously produces a cold mist without the risk associated with flame techniques or overheating. The production of higher levels of the heavier molecules in the oil without the risk of high temperatures is particularly advantageous. Furthermore, it is relatively easy to adjust the volume of vapour output compared with conventional techniques .

Preferably, the oil composition to be located in the reservoir, preferably, comprises oil in a range of 1-10% w/w and water in a range of 90-99% w/w.

Advantageously, by utilising compositions in this range, the treatment or aroma is improved in relation to techniques using concentrated oils which tend to be useful to produce aromas comprising lighter molecules but only low levels of the higher molecules ie . those with higher molecular weight .

By using such a composition it becomes possible to utilise unique vapour characteristics above the oil composition to generate the appropriate aroma at the outlet. The water component in the system- may also enhance the beneficial effects of the transducer but it is not yet clear how this is effected.

Preferably, the oil is at least 2% w/w of the composition, more preferably, at least 3% w/w of the composition, most preferably at least 4% w/w.

Preferably, the oil is less than 9% w/w of the composition, more preferably, less than 7.9 w/w of the composition, most preferably, less than 5.5% w/w of the composition. Preferably, the oil is in a range 2-10% w/w, more preferably, 3-8% w/w, most preferably in a range of 4-5.5% w/w.

Preferably, the water content is at least 90% w/w of the composition, more preferably, at least 92% w/w of the composition, most preferably, at least 93.3 w/w of the composition.

Preferably, the water content is less than 97.5 w/w of the composition, more preferably, less than 96.5% w/w of the composition, most preferably, less than 95.5% w/w of the composition.

Preferably, the water content is in a range of 90-97.5% w/w, more preferably, in a range of 92-96.5% w/w, most preferably, in a range of 93.3-95.5% w/w,

Preferably, a solubilizer is also present in the oil composition. By the use of a solubilizer, the oil is dispersed throughout the water and this enhances the aroma quality of the composition. Mechanical means of dispersion are also possible but a chemical dispersant is preferred.

Preferably, the solubilizer content is at least 0.2% w/w, more preferably, at least 0.35% w/w, most preferably, at least 0.5% w/w. Preferably, the solubilizer content is less than 3% w/w, more preferably, less than 2% w/w, most preferably less than 1.2% w/w.

Preferably, the solubilizer is present in a range of 0.1-4% w/w, more preferably, 0.25-2.5% w/w, most preferably, 0.5- 1.2% w/w.

Preferably, the aroma producing oil is selected from a suitable herbal, aromatherapy, essential, deodorizing or perfumed oil or mixtures thereof. For the sake of clarity, it should be noted that the term oil is not limited to oils derived from natural herbs but includes non-industrial oils derived from other natural sources such as animal, plant or mineral sources and includes synthetic analogues thereof. Generally such oils have known or potential beneficial effects.

Suitable types of oil for use with the present invention will be known to the skilled man working in the field of herbal, aromatherapy, essential, deodorising or perfumed oils. Examples of such oils include: almond, almond sweet, amber, aniseed, apple, apple fresh, apple musk, apple pie, apricot, atlantis, avocado, banana, banana and custard, benzoin, bergamot, blackcurrant, bluebell, blue orchid, camphor, carnation, cassis, cedarwood, chamomile, cherry, chocolate, chocolate lime, Christmas spirit, cinnamon, citronella, citrus, clove, coconut, cornflower, country fresh, country garden, cucumber, dewberry, english garden, eucalyptus, exotic, fern, forest flower, fragnipani, frankincense & myrrh, freesia, fresh fruit, gardenia, garlic, geranium, grapefruit, hay, heather, herb garden, honey, honeysuckle, hyacinth, jasmine, juniperberry, lavender, leather, lemon, lemongrass, lemon pine, bitter lemon, tangy lemon, lilac, lily of the valley, lime, magnolia, mango, marzipan, menthol, mint, moss, musk, myrrh, narcissus, neroli, night scented stock, oakmoss, oceanic, orange & cinnamon, orange sharp, oriental, papaya, parma violet, passion flower, passionfruit, patchouli, peach, pear, peppermint, pine, pine forest, pine musk, pine wood, raspberry, rose, rosemary, sandalwood, Scottish heather, sea fresh, seaweed, spearmint, spice bay, strawberry, sweep pea, summery hay, tagate, tangerine, thyme, treemoss, tropical fruit, tuberose, vanilla, vanilla cherry, vetiver, violet, watermelon, wild cherry, wintergreen, woody, ylang ylang, baby, vanilla pod, fresh cut grass, seaside, smoked wood, spiced tea, green tea, garden mint, herb garden, morning dew, tropical bounty, ginger biscuit, coffee amaretto, strawberry fayre, apple crisp, coconut delight, tutti-frutti, frankincense, popcorn, coffee, white grape, cinnamon & orange, fragrant forest, liquorice, spring, chocolate, fresh bread, natural forest and garden oil .

Suitable known fragrances which may be used with the present invention include: oulou, Obsession, Chanel No 5, Rive Gauche, Opium (Ladies) , Youth Dew, Joy, Paris, Poison, Chanel No 19, Escape, Issey Miyake, Ysatis, Eternity, Anais Anais, Beautiful, Dune, White Linen, Coco, Samsara, Amarige, Sunflowers, CK1 (Ladies) , CKB (Ladies) , Drakar Noir, Kouros, Aramis, CK1 (Men) , Opium (Men) , Paco Rabane, Polo, Coolwaters, CKB (Men) , Tommy Hillfiger.

Any of the perfumed oils may be a mixture of more than one oil . The essential oils are typically, one or more pure oil (s) mixed with, preferably, one or more vegetable oil(s) .

Preferably, the water is demineralised.

Suitable solubilizers for use with the present invention will be known to the skilled person in the art of solubilising oils.

Preferably, the device of the invention includes air holes located close to and above the surface of the oil composition through which air is drawn during operation of the gas impeller and which therefore assists the vapour in its passage to the outlet.

Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings in which: -

Figure la shows an aroma unit in accordance with the present invention;

Figure lb shows an adaptor for the aroma unit of figure la;

Figure 2a shows a bottle and transducer of the type depicted in figure la in greater detail; Figure 2b shows an enlarged view of a transducer in accordance with the present invention;

Figure 2c shows a connection block for the transducer of figure 2b;

Figure 3 shows a schematic view of an aroma unit in accordance with the present invention with an adapted outlet hood.

Figure 4 shows a cartridge and cartridge holder in accordance with the present invention.

Referring to figure 1, an aroma unit 2 comprises a reservoir bottle 4 and an outlet tube 6. The reservoir bottle 4 comprises a tubular upright wall which terminates in an open ended threaded nozzle 8 of smaller diameter. The bottle is of conventional construction having a circular base 12 and tubular wall 10 extending upwardly from the base 12. The upper end of the wall 10 of the bottle narrows into the nozzle 8. The wall of the nozzle is also tubular and is threaded on the exterior surface thereof to accommodate an interior corresponding thread on a nozzle 14 of the outlet tube 6.

The outlet tube 6 comprises an upright tubular wall section 12 with a nozzle 14 of narrower section depending downwardly from the bottom end of the tubular section and designed for threaded engagement with the nozzle 8 at the top of the reservoir bottle 4. The nozzle neck expands upwardly into a shoulder section 16 which extends to the full width of the outlet tube 6 whose tubular wall 12 thereafter extends upwardly to the outlet 18 of the outlet tube. A spaced series of circumferential holes 20 are located around the shoulder section 16 of the outlet tube 6 to allow for the ingress of air from outside the unit during use of the fan.

An auxiliary tube 24 is disposed adjacent to and at a converging angle with the main tube 12 in the direction of the outlet 18 and merges with the main tube near the outlet 18. The auxiliary tube houses a fan at its base section 26 which is designed to draw air in and force air up the auxiliary tube 24 and into the main tube 12. The effect of the air being forced upwards towards the outlet 18 of the outlet tube 6 causes air to ingress through the breather holes 20 and thus causes the aroma above the reservoir to be drawn up towards the outlet 18 which is then replaced from the reservoir below.

Referring now to the reservoir bottle 4, a transducer 30 disposed at an angle of 13° which respect to the surface of the oil composition in the reservoir bottle 4 is mounted in the base 12 of the bottle 4. The bottle itself is conveniently located for communication with a transducer connection circuit which includes pins 32 designed to electrically connect with corresponding sockets 34 on the transducer 30. The parts and arrangement of the transducer is shown in more detail with reference to figure 2. Referring to figure 2a, a reservoir bottle 40 of a similar type to that described with respect to figure 1 (a) has a reservoir of oil 42 residing in the bottom portion thereof. The bottle has a base 44 in which is located an ultrasonic transducer 46 which comprises rectilinear housing 48 in which is located the ultrasonic transducer transmitter element 50. The transmitter 50 is disposed at an angle of 13° with respect to the surface meniscus 52 of the oil reservoir 42. The transducer housing 48 has two spaced connections 54, 56 depending downwardly therefrom for mating contact with two corresponding upwardly extending spaced connection elements 58, 60 which are located in and external upwardly from an insulated rectilinear body 62. The insulated rectilinear body 62 and the transducer will be described in greater detail hereinafter. In the embodiment shown in figure 2, the bottle 40 has three equally circumferentially spaced triangular legs 64 depending downwardly from the base 44 of the bottle so that the lowermost apex 66 of each leg takes the weight of the bottle 40. The legs 64 space the base 44 of the bottle above the surface (not shown) upon which the bottle legs 64 are mounted so that the weight of the bottle does not rest upon the downwardly extending transducer contacts 54, 56.

In the top part of the reservoir bottle 40, below the shoulder section 70 from which the nozzle extends upwardly, a magnetic strip 72 is secured to the inside surface of the bottle wall 76. The magnetic strip prevents re-use of the bottle after it has been read by a strip reader (not shown) and, accordingly, it is not possible to refill the bottle for re-use. This prevents the use of non-authorised compositions which could damage the transducer connections or emit unsafe substances as part of the aroma at the outlet. A circumferential baffle element 74 extends upwardly from a point just above the surface 52 of the reservoir 42, parallel with the wall 76 of the bottle 40 and spaced inwardly therefrom to provide a small annular space between the bottle wall and the baffle. Once the water/oil mixture comes into contact with the baffle, an extremely fine and uniform mist of particles is produced. The mist of particles is drawn up through the nozzle 78 by the action of a fan on the outlet tube (not shown) which is of the kind as has been before described with reference to figure la.

Referring to figure 2b, a schematic transducer of a similar type to that also shown schematically in figure 2a is shown in greater detail. A rectilinear transducer housing 80 has a narrower upper section 82 centrally mounted on a wider base section 84 so that, in use, the narrower upper section protrudes through a close fitting hole 86 formed in the base 88 of the bottle and so that the overlapping part of the wider lower section 84 abuts against the exterior of the base 88 against which it is sealed by a suitable weld. Spaced electrical contacts pins 90, 92 depend downwardly from the base section of the transducer housing 80 and each communicates, via respective spaced contact wires 94, 96 extending through the housing, with the transducer element 98. The transducer element 98 is located at an angle of 13° with respect to the horizontal base of the bottle 88 and also with respect to the reservoir of oil located in the bottle, when in use. The transducer element 98 is sealed in a box housing 100 formed as a centrally disposed recess in the top of the upper section 82 of the transducer housing 80. The seal is designed so as to prevent the ingress of the water/oil composition in use. The transducer contacts 90, 92 are designed to make contact with respective spaced mating pins 102, 104 which are located, in use, directly below the respective transducer contacts 90, 92. The mating pins are housed in and protrude upwardly from an insulated rectilinear block 106 which is itself spaced from and mounted on the floor of the aroma unit 108. The block 106 is spaced from the floor 108 of the unit by means of two spaced peripherally located CS screws 110, 112 which extend through opposites sides of the block 106 and also through the floor of the unit 108 located below the block to be secured on the outside of the unit floor 108 by means of M3 nuts 114, 116. Each screw has a spacer 118, 120 located between the block 106 and the floor 108 of the aroma unit to space the block from the floor 108 and to thus prevent electrical contact between the part of the mating pins 102, 104 protruding through the underside of the block 106 and the unit floor 108. Accordingly, the pins 102, 104 extend through the insulated block 106 and protrude therebeneath to an extent which is less than the height of the spacers 118, 120. Each mating pin 102, 104 has a ring connector 122, 124 located thereover and secured on the pin by means of a respective nut 126, 128. The ring connectors extend from the pins to the transducer control circuitry (not shown) .

In addition to the embodiments shown, it is envisaged that a multiple bottle version of the invention may be produced. This may comprise a number of bottles located on a carousel and a control mechanism to rotate the carousel when the oil in a single bottle has been consumed. In such an embodiment, the mating pins may be mounted on a solenoid switch to removably connect the pins to the contacts below the transducer. The bottle is thus rotated on a carousel and located in connection with a fixed outlet tube. The carousel can rotate when the solenoid is in the retracted position and the solenoid can reconnect with the transducer once the new bottle is loaded in position. Such a device may be provided with a separate loading bay to remove empty bottles and replace them with charged bottles. A push fit seal may be provided between the bottle and the outlet tube to simplify the action of connecting the outlet tube to the bottle.

The outlet tube may be shaped or modified at its outlet to meet the specific application. For instance, referring to figure 3, the outlet 130 of the outlet tube 132, which latter is of the type such as that hereinbefore described and with reference to figure 1(a), has been^' angled so that it is almost at right angles to the main body of outlet tube 132. In this manner, the aroma may be directed into the area around the unit in a substantially horizontal manner.

Referring to figure lb, an outlet adaptor 140 is shown which has a generally tubular base section 142 and a frustoconical outlet section 144 which narrows in the direction of the outlet 146 of the adaptor. A dotted line 148 extending at 45° across the corner of the outlet and shown in figure 1 (a) represents the manner in which the outlet tube 6 may be adapted to receive the outlet adaptor 140. The section of the outlet tube above the dotted line 148 is intended to be cut away to leave an angled outlet on the tube 6 having a rim which is represented by the dotted line 148 and which may be welded to the bottom edge of the base section 142.

Referring to figure 4, a cartridge holder 150 accommodates, in use, a cartridge 152 which are both shown schematically. Both the holder and cartridge form a rectangular box. The cartridge holder comprises a rectangular base 154, a rectangular lid 156 and two rectangular sides 158, 160. The rectangles are of approximately equal width so that the ends of the box are square. Of the ends, one end 162 is closed and the opposite end 164 is open and defines a square opening designed to be close fitting with the exterior casing of the oil cartridge 152. The oil cartridge itself is of a similar design to the cartridge holder 150 and comprises a rectangular base 166, a rectangular lid 168, two rectangular sides 170, 172 and two square closed ends 174, 176. In use, the oil cartridge or the oil cartridge holder may include a seal to prevent the passage of air through the cartridge holder opening 164 when the cartridge 152 is fully inserted therein. The interior of the oil cartridge 152 includes a rectangular baffle element 178 which depends from the lid 168 and which extends across the full width of the interior of the cartridge 152, parallel with the ends 172, 174 thereof but not extending downwards as far as the base 166, leaving a gap between the lower edge 180 of the baffle element 178 and the inside of the base of the cartridge 166. The gap may allow both fluid and gas communication between the two compartments of the oil cartridge divided by the baffle 178. A circular transducer 182 is shown schematically formed in the base of the first compartment 184. The transducer element 182 is arranged to communicate with transducer connections 186 formed in a corresponding location in the base 154 of the cartridge holder 150. In use, full insertion of the cartridge into the cartridge holder causes the transducer 182 to be located directly above the transducer connections 186 so that the transducer connections may be inserted into the transducer to activate the transducer element .

The lid 168 of the cartridge 152 comprises a circular vapour outlet 188 formed above the first chamber 172 and a circular air inlet 190 formed above the second chamber 192. In use, the vapour outlet communicates with a vapour tube 194 located in a corresponding position in the lid 156 of the cartridge holder 150. Similarly, the inlet co-operates with a fan 196 located in a corresponding position in the lid 156 of the cartridge holder 150. It would be appreciated that the transducer 182, vapour outlet 188, inlet 190, transducer connections 186, vapour tube 194 and fan 196 are drawn schematically in figure 4.

In use, the oil composition is located in the oil cartridge 152 and the surface of the oil reservoir lies below the lower edge 180 of the baffle element 178 so that the fan 196 may urge the air through the inlet and over the reservoir surface so that the vapour above the reservoir is impelled towards the vapour outlet 188 and out through the vapour tube 194. Alternatively, the reservoir level may be located above the bottom edge 180 of the baffle element 178 and, in such embodiments, suitable holes are formed in the baffle element to allow the passage of air therethrough. Preferably, such holes are formed at a level in the baffle element suitable to the vapour requirements required at the outlet .

EXAMPLES The following oil mixtures have been prepared in accordance with the present invention.

Example 1 - Lavender Oil Composition Lavender Based on a mixture of a 25 ml bottle Essential oils lml

Solubaliser 0.2ml Demineralised water 23.8ml

Example 2 - Lemon Oil Composition Lemon

Essential oils 1.2ml

Solubaliser 0.3ml Demineralised water 23.5ml

Example 3 - Popcorn Composition Popcorn

Perfumed Oils 1.3ml

Solubaliser 0.15ml Demineralised water 23.55ml

Example 4 - Deodorising Oil Composition Deodoriser

Deodoriser Oils 1.5ml Solubaliser 0.3ml Demineralised water 23.20ml

Example 5 - Forest Oil Composition

Forest

Perfumed Oil 0.9ml Solubaliser 1.1ml Demineralised water 22ml

Example 6 - Cinnamon & Orange Composition Cinnamon & Orange

Essential Oil 0.95ml Solubaliser 0.9ml

Demineralised water 23.15ml

Example 7 - Country Garden Composition Country Garden Essential Oil 1.2ml

Solubaliser 0.6ml Demineralised water 23.2ml

Example 8 - Spring Oil Composition Spring

Essential Oil 1.25ml

Solubaliser 1.00ml Demineralised water 22.75ml

Example 9 - Fresh Cut Grass Oil Composition Fresh Cut Grass Essential Oil 1.15ml

Solubaliser 1.15ml Demineralised water 22.7ml

Example 10 - Morning Dew Oil Composition

Morning Dew

Perfumed Oil 1ml Solubaliser 1.3ml Demineralised water 22.7ml

Example 11 - Garden Oil Composition

Garden

Essential Oil 1.4ml

Solubaliser 0.8ml Demineralised water 22.75ml

Example 12 - Tropical Bounty Oil Composition Tropical Bounty

Perfumed Oil 1.3ml Solubaliser 0.95ml

Demineralised water 22.75ml

The reader's attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.

All of the features disclosed in this specification (including any accompanying claims, abstract and drawings) , and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.

Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) , may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.

The invention is not restricted to the details of the foregoing embodiment (s) . The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings) , or to any novel one, or any novel combination, of the steps of any method or process so disclosed.

Claims

1. An aroma production device comprising a reservoir for an aroma producing oil composition, an outlet for the aroma in gas communication with the reservoir and an aroma production means, wherein the aroma production means comprises an ultrasonic frequency transmitter.

2. An aroma production device according to claim 1, wherein the ultrasonic frequency transmitter is an ultrasonic transducer.

3. An aroma production device according to claim 2 wherein, the transducer is located in the reservoir.

4. An aroma production device acccording to any of claims 2 or 3, wherein the angle of the transducer is configured to send ultrasound waves at a specific angle with respect to the surface of the oil composition located within the reservoir.

5. An aroma production device according to claim 4, wherein the angle of propagation of ultrasound waves is at least 9°.

6. An aroma production device according to- claim 4 or 5, wherein the angle of propagation of ultrasound waves with respect to the surface of the liquid in the reservoir is less than 16°.

7. An aroma production device according to any of claims

2-6, wherein the transducer operates at a suitable ultrasonic frequency.

8. An aroma production device according to any of claims

1-7, wherein a baffle is located above the reservoir.

9. An aroma production device according to any of claims

1-8, wherein the oil composition to be located in the reservoir comprises oil in a range of 1-10% w/w and water in a range of 90-99% w/w

10. An aroma production device according to claim 9, wherein a solubilizer is also present in the oil composition.

11. An aroma production device according to any of claims 9 or 10, wherein the aroma producing oil is selected from a suitable herbal, aromatherapy, essential, deodorizing or perfumed oil or mixtures thereof.

12. An aroma production device according to any of claims 9-11, wherein the oil (s) may be selected from one or more of: almond, almond sweet, amber, aniseed, apple, apple fresh, apple musk, apple pie, apricot, atlantis, avocado, banana, banana and custard, benzoin, bergamot, blackcurrant, bluebell, blue orchid, camphor, carnation, cassis, cedarwood, chamomile, cherry, chocolate, chocolate lime, Christmas spirit, cinnamon, citronella, citrus, clove, coconut, cornflower, country fresh, country garden, cucumber, dewberry, english garden, eucalyptus, exotic, fern, forest flower, fragnipani, frankincense & myrrh, freesia, fresh fruit, gardenia, garlic, geranium, grapefruit, hay, heather, herb garden, honey, honeysuckle, hyacinth, jasmine, juniperberry, lavender, leather, lemon, lemongrass, lemon pine, bitter lemon, tangy lemon, lilac, lily of the valley, lime, magnolia, mango, marzipan, menthol, mint, moss, musk, myrrh, narcissus, neroli, night scented stock, oakmoss, oceanic, orange & cinnamon, orange sharp, oriental, papaya, parma violet, passion flower, passionfruit , patchouli, peach, pear, peppermint, pine, pine forest, pine musk, pine wood, raspberry, rose, rosemary, sandalwood, Scottish heather, sea fresh, seaweed, spearmint, spice bay, strawberry, sweep pea, summery hay, tagate, tangerine, thyme, treemoss, tropical fruit, tuberose, vanilla, vanilla cherry, vetiver, violet, watermelon, wild cherry, wintergreen, woody, ylang ylang, baby, vanilla pod, fresh cut grass, seaside, smoked wood, spiced tea, green tea, garden mint, herb garden, morning dew, tropical bounty, ginger biscuit, coffee amaretto, strawberry fayre, apple crisp, coconut delight, tutti- frutti, frankincense, popcorn, coffee, white grape, cinnamon & orange, fragrant forest, liquorice, spring, chocolate, fresh bread, natural forest and garden oil.

13. An aroma production device according to any of claims 9-12, wherein suitable known fragrances which may be used with the present invention include: Loulou, Obsession, Chanel No 5, Rive Gauche, Opium (Ladies) , Youth Dew, Joy, Paris, Poison, Chanel No 19, Escape, Issey Miyake, Ysatis, Eternity, Anais Anais, Beautiful, Dune, White Linen, Coco, Samsara, Amarige, Sunflowers, CK1 (Ladies) , CKB (Ladies) , Drakar Noir, Kouros, Aramis, CK1 (Men), Opium (Men), Paco Rabane, Polo, Coolwaters, CKB (Men) , Tommy Hillfiger.

14. A method of providing an aroma comprising the step of : - filling a reservoir in or for an aroma production device in accordance with any of claims 1-13 with a suitable oil composition; and activating the said transmitter.

15. An aroma production device as hereinbefore described with reference to the drawings .

16. A method of producing an aroma as hereinbefore described with reference to the drawings .