Odor dispenser and cartridge thereof

Abstract

A cartridge for an odor dispenser, comprising: a container; and at least one porous member (which may be referred to as a core). The container is used for containing liquid (such as perfume). The or each at least one porous member is an elongate hollow porous member and may, for example, typically in the form of a tube formed from a porous material. At least one end of the or each porous member is in fluid communication with the container. Also disclosed is an apparatus (scent dispenser) comprising a support for supporting the cartridge. The device also includes an actuation mechanism operable to interact with the cartridge supported by the support to flow the liquid from the container through the at least one porous member. When liquid flows through the at least one porous member, it is impregnated and then wicked through the at least one porous member to its outer surface. At least a portion of the liquid may then evaporate to provide a scent to the ambient environment.

Description

[0001] The present invention relates to a cartridge for a scent dispenser. The present invention also relates to a device (scent dispenser) operable to support or receive the cartridge and to dispense scent from the cartridge to the surrounding environment.

[0002] Scent dispensers can dispense scents into a surrounding environment, for example, via evaporation of a volatile liquid. Using such a scent dispenser, vapor from a volatile liquid can be provided to a room and can have a pleasant or desired scent. It may be desirable to provide a scent dispenser that provides good control over the intensity of the scent dispensed thereby.

[0003] It may be desirable to provide an alternative scent dispenser and / or cartridge.It may also be desirable to provide an alternative scent dispenser and / or cartridge that at least partially solves one or more problems in the prior art (whether or not noted herein).

[0004] Some aspects of the present disclosure relate to a box for a scent dispenser, the box comprising a container for containing a fluid and at least one porous member, wherein the at least one porous member is not disposed in the container. More specifically, the fluid is actively pumped out of the container (e.g., periodically) to quantitatively supply the fluid to the at least one porous member. Some aspects of the present disclosure relate to a box for a scent dispenser, the box being configured to provide no passive distribution of a scent or fluid or to provide negligible passive distribution of a scent or fluid. Some aspects of the present disclosure relate to a box for a scent dispenser, the box being configured to provide no continuous distribution of a scent or fluid when in use.

[0005] Some aspects of the present disclosure relate to a cartridge for a scent dispenser comprising at least one porous member and a separate container for containing a fluid. This is in contrast to some prior art arrangements which include a wick pre-soaked in a liquid.

[0006] According to a first aspect of the present disclosure, there is provided a box for a scent dispenser, the box comprising: a container for containing a liquid; and at least one porous member, wherein the or each porous member is an elongated and hollow porous member, and wherein at least one end of the or each porous member is in fluid communication with the container.

[0007] The porous member may be referred to as a core.

[0008] As will now be described, the cartridge according to the first aspect of the present disclosure is particularly advantageous.

[0009] In use, the scent dispenser is operable to cause a liquid (e.g., perfume) to be provided from a container to flow through at least one porous member. To achieve this, the scent dispenser may be provided with any suitable actuation mechanism. As the liquid flows through the at least one porous member, the porous member is saturated and then wicks through the at least one porous member to its outer surface. At least a portion of the liquid may then evaporate to provide a scent to the surrounding environment.

[0010] Compared with the known arrangement including a solid core (liquid can be axially wicked along its length), at least one hollow porous member of the box according to the first aspect provides many advantages. By pouring or pumping liquid from a container through at least one hollow porous member, substantially its entire inner surface can be saturated in a short time. Advantageously, compared with, for example, a solid porous member, this arrangement provides better control for the delivery of liquid or perfume. Different from liquid axially wicking along the length of a solid core, the entire inner surface of the hollow porous member has a radially outwardly wicked liquid, where the liquid can be delivered to the airflow provided by the fan of the scent dispenser. In addition, using this at least one hollow porous member can prevent the or each porous member from being excessively saturated (oversaturation, supersaturation phenomenon), and excessive saturation may cause undesirable liquid leakage.

[0011] The cartridge according to the first aspect may be adapted for use in a scent dispenser which is suitable for domestic use and which can provide a room with an easily adjustable and controllable fragrance intensity.

[0012] It will be appreciated that as at least one of the porous members is elongate and hollow, the or each porous member may typically be in the form of a tube formed from a porous material.

[0013] The box may include a plurality of porous members. For such an embodiment, the plurality of porous members may be substantially parallel to each other.

[0014] At least one end of the or each porous member may be in fluid communication with the container via the passage. Advantageously, with this arrangement, liquid may be actively pumped to the or each porous member via the passage as required. This provides better control over liquid delivery than an arrangement where the core is pre-immersed or partially placed in a container containing liquid for distribution.

[0015] It is to be understood that the box used herein refers to a container for consumables (e.g., liquids) that is used in larger or more complex items of a device or apparatus (e.g., a scent dispenser) and can be replaced with similar parts. In general, such a box can be a replaceable, consumable product.

[0016] It should be understood that as used herein, a container for holding a liquid may refer to a portion of a device (e.g., a box) in which, in use, most of the liquid is placed most of the time. For example, there may be other parts of a device or box in which a small portion of the liquid may be placed but which do not constitute a container. It should be understood that as used herein, a container for holding a liquid may refer to a portion of a device (e.g., a box) in which, in use, the portion is disposed near the bottom of the device or box so that the liquid is easily collected in the container under the influence of gravity.

[0017] According to a second aspect of the present disclosure, there is provided a box for a scent dispenser, the box comprising: a container for containing a liquid; and at least one porous member; wherein the container is disposed at a first end of the at least one porous member, wherein the container is fluidically connected to the first end of the at least one porous member via a first passage, and wherein the container is fluidically connected to the second end of the at least one porous member via a second passage; and wherein the first passage is provided with a valve mechanism that allows the first passage to be selectively opened or closed.

[0018] The porous member may be referred to as a core.

[0019] As will now be described, the cartridge according to the second aspect of the present disclosure is particularly advantageous.

[0020] In use, the scent dispenser is operable to cause a liquid (e.g., perfume) to be provided from a container so as to flow through at least one porous member. To achieve this, the scent dispenser may be provided with any suitable actuation mechanism. As the liquid flows through the at least one porous member, the porous member is saturated and then wicks through the at least one porous member to its outer surface. At least a portion of the liquid may then evaporate to provide a scent to the surrounding environment.

[0021] In use, the box can be oriented so that the container is usually below at least one porous member. At least one porous member can be roughly vertical. In use, the first end of at least one porous member can be the bottom of at least one porous member, and the second end of at least one porous member can be the top of at least one porous member. Advantageously, the second passage allows liquid to be provided to the second end of at least one porous member (in use, the second end is the top of the at least one porous member). Liquid can then flow through at least one porous member under gravity. The first passage allows any excess liquid to be discharged back into the container from the first end of the at least one porous member (in use, the first end is the bottom of the at least one porous member). This arrangement provides good control of the delivery of liquid, particularly when the container is exhausted.

[0022] Advantageously, the valve mechanism allows the first passage to be closed. Once closed, if the container is squeezed, liquid will be forced through the second passage and delivered to the second end of the at least one porous member (in use, the second end is the top of the at least one porous member). Once liquid has been delivered to the second end of the at least one porous member via the second passage, the first passage can be opened to allow any excess liquid to flow back into the container.

[0023] The cartridge according to the second aspect may be suitable for use in a scent dispenser which is suitable for domestic use and which can provide a room with an easily adjustable and controllable fragrance intensity.

[0024] The box may include a plurality of porous members. For such an embodiment, the plurality of porous members may be substantially parallel to each other.

[0025] It is to be understood that the box used herein refers to a container for consumables (e.g., liquids) that is used in larger or more complex items of a device or apparatus (e.g., a scent dispenser) and can be replaced with similar parts. In general, such a box can be a replaceable, consumable product.

[0026] At least a portion of the container may be formed from a flexible material.

[0027] Such a cartridge may be used in a scent dispenser which may include an actuator operable to deform the flexible material and squeeze the container. This may force at least a portion of the liquid within the container into the at least one porous member where it may wick through the walls of the at least one porous member. This provides the basis for a particularly simple mechanism for pumping liquid from the container through the at least one porous member.

[0028] It is understood that a flexible material may refer to a material that is easily deformed without being damaged. It is also understood that a flexible material may refer to a material that is elastically deformable. It is understood that a flexible material may refer to a material that has high elasticity. The flexible material may include any suitable plastic material, such as polypropylene or polyethylene. Alternatively, any other flexible material, such as an elastomer, may be used.

[0029] In some embodiments, the flexible material comprises a laminated plastic film. The laminated plastic film may comprise polypropylene or polyethylene.

[0030] The cartridge may include a rigid body having a recess defined therein and a flexible membrane sealed to the rigid body, wherein at least a portion of the container is formed by the recess and the flexible material.

[0031] The rigid body may, for example, be formed from a plastic material. For example, the rigid body may be formed by injection molding.

[0032] The flexible film may comprise any suitable plastic material. The flexible film may comprise any suitable plastic material, such as polypropylene or polyethylene. Alternatively, any other flexible material may be used, such as an elastomer.

[0033] The container may be disposed at a first end of at least one porous member. The container may be in fluid communication with the first end of the at least one porous member via a first passage. The container may be in fluid communication with the second end of the at least one porous member via a second passage.

[0034] In use, the box can be oriented so that the container is disposed below the at least one porous member. That is, in use, the first end of the at least one porous member can be the bottom of the at least one porous member, and the second end of the at least one porous member can be the top of the at least one porous member.

[0035] Advantageously, the second passage may allow liquid to be supplied to the second end of the at least one porous member (which, in use, is the top of the at least one porous member). The liquid may then flow through the at least one porous member under gravity. The first passage may allow any excess liquid to drain back into the container from the first end of the at least one porous member (which, in use, is the bottom of the at least one porous member).

[0036] This arrangement provides good control over the delivery of liquid, particularly as the container is depleted.

[0037] The first passage and the second passage may be formed at least in part by channels in the rigid body.

[0038] The first passage may be provided with a valve mechanism that allows the first passage to be selectively opened or closed.

[0039] For embodiments comprising a flexible membrane and a rigid body, the valve mechanism may be actuated by squeezing the flexible membrane into contact with the rigid body, thereby closing the first passageway.

[0040] Advantageously, the valve mechanism allows the first passage to be closed. Once closed, if the container is squeezed, liquid will be forced through the second passage and delivered to the second end of the at least one porous member (in use, the second end is the top of the at least one porous member). Once liquid has been delivered to the second end of the at least one porous member via the second passage, the first passage can be opened to allow any excess liquid to flow back into the container.

[0041] The second passage may be provided with a valve mechanism that allows the second passage to be selectively opened or closed.

[0042] The one or more walls may partially divide the container into a first portion and a second portion adjacent to the second passageway.

[0043] Advantageously, such an arrangement may allow for a simpler actuation mechanism comprising a single actuator in the scent dispenser, as now discussed.

[0044] The one or more walls may be arranged so that the size and shape of the second portion of the container may be substantially complementary to the size and shape of the actuator. Thus, the actuator is operable to first engage with the box to substantially isolate the second portion from the first portion. Subsequently, the same actuator may be moved while still engaging with the box, the movement of the actuator forcing the liquid to reach the second end of the at least one porous member through the second passage.

[0045] Preferably, only a relatively narrow connecting portion connects the first and second parts of the container. For example, the size of the connecting portion can be roughly the same as the size of the second passage. The size of the connecting portion can be less than half the size of the first and second parts.

[0046] The second portion of the container may comprise a generally linear channel of generally uniform width, the first portion being connected to the second portion at only one end of the generally linear channel.

[0047] With this arrangement, an actuator having an outer dimension less than and substantially matching the inner dimension of the substantially linear channel can be moved along the channel to force liquid through the second passage to the second end of the at least one porous member in a manner similar to a peristaltic pump. The actuator may be in the form of a roller or the like.

[0048] The second portion of the container may include a generally annular channel of generally uniform width, the first portion being connected to the second portion at only one circumferential location on the generally annular channel, and the second passageway being connected to a different location on the generally annular channel.

[0049] With this arrangement, a rotary actuator having three protrusions with outer dimensions less than and substantially matching the inner dimensions of the generally annular channel can be moved around the channel to force liquid through the second passage to the second end of the at least one porous member in a manner similar to a peristaltic pump. The three protrusions (or rollers) on a single rotary actuator can act as a non-return valve.

[0050] The box may also include a second container. The container may be disposed at the first end of the at least one porous member, and the container may be in fluid communication with the first end of the at least one porous member via a first passage. The second container may be disposed at the second end of the at least one porous member, and the second container may be in fluid communication with the second end of the at least one porous member via a second passage.

[0051] In use, the box can be oriented so that the at least one porous member is generally vertical, wherein one of the container or the second container is generally located below the at least one porous member, and the other of the container or the second container is generally located above the at least one porous member. It will be understood that the liquid will be placed in the container at the bottom of the box.

[0052] Advantageously, for such an arrangement with two containers, by rotating the box 180° about an axis substantially perpendicular to the at least one porous member, the container containing the liquid at the bottom can be moved to the top, thereby allowing the liquid to flow through the at least one porous member to the other container under the action of gravity. This arrangement provides a simple alternative mechanism by which liquid can be moved from one of the containers to flow through the at least one porous member.

[0053] The cartridge may also include the liquid to be dispensed.

[0054] The liquid may include a perfume or other volatile liquid that is desired to be dispensed.

[0055] The cartridge may further comprise a sealing mechanism for preventing liquid from flowing through the at least one porous member. The cartridge may further comprise a seal breaking actuator operable to break the sealing mechanism.

[0056] This arrangement advantageously prevents leakage of the box during storage or transport. In addition, this prevents the box from drying out during storage. This means that no liquid will be wasted before the box is used (at which time the seal breaking actuator can be used to break the sealing mechanism to allow the liquid to be transported).

[0057] The liquid may be disposed in the sealed capsule, and the cartridge may further include a piercing member movable between a first storage position and a second actuated position, in which the piercing member extends into and pierces the sealed capsule.

[0058] For example, the sealed capsule may be hermetically sealed. The sealed capsule may be at least partially formed by a flexible membrane or the like, which may be pierced by a piercing member. The piercing member may be movably mounted in the body of the box and sealed to the body of the box.

[0059] The container may define a chamber for receiving the sealed capsule. The chamber may have an opening to allow the piercing member to move into the chamber and to allow the liquid to flow out of the chamber.

[0060] In some embodiments, the opening can serve as a guide bush for the piercing member. In such embodiments, the opening can be generally circular, and the piercing member can include a generally cylindrical portion having an outer dimension that generally matches an inner dimension of the opening. In such embodiments, the generally cylindrical portion can define one or more axial recesses to allow liquid to flow through the opening when the piercing member is received in the opening.

[0061] The cartridge may further comprise a storage container.The liquid may be disposed in the storage container, and the sealing mechanism may comprise a valve operable to isolate the storage container from the at least one porous member.

[0062] The valve is operable to isolate the storage container from all other parts of the cassette.The storage container may be provided at an end of the at least one porous member opposite the container.

[0063] The sealing mechanism may comprise one or more valves operable to isolate the container from the at least one porous member.

[0064] The cartridge may comprise one or more valves arranged to allow isolation of the container from the at least one porous member.

[0065] The or each valve may for example comprise a single valve member movable between a closed configuration and an open configuration.When arranged in the closed configuration, the single valve member may substantially block and seal both the first passage and the second passage.

[0066] The cartridge may further comprise a biasing member arranged to bias the valve member of the or each valve towards a closed configuration in which the container is isolated from the at least one porous member.

[0067] The cassette may also include a rigid plate connected to the rigid body to form a two-piece housing for the valve member and the biasing member.

[0068] The valve member may define an engagement feature which, in use, may be acted upon by an actuator of the scent dispenser.

[0069] A groove may be defined in the rigid body for receiving an actuator of the scent dispenser to act on the valve member.

[0070] The box may also include a rack gear. In some embodiments, the rack may be formed on the surface of the rigid body. In use, the box may be inserted into the odor dispenser, for example, through an aperture defined in the odor dispenser. After a portion of the box is so inserted, a pinion in the odor dispenser may act on the rack formed by the box, thereby pulling the box completely into the odor dispenser.

[0071] The at least one porous member may be formed from polypropylene.

[0072] In the first aspect or the second aspect of the present disclosure, the at least one porous member can be arranged to be not arranged in the container. Advantageously, this box for the odor dispenser is arranged to not provide the passive distribution of odor or fluid or the passive distribution of the odor or fluid provided is negligible, because the liquid in the container can not be wicked upwards along the porous member and distributed via evaporation. On the contrary, the fluid is actively pumped out (e.g., periodically) from the container, thereby quantitatively supplying fluid to at least one porous member. The first aspect or the second aspect of the present disclosure may relate to a box for the odor dispenser, which is arranged to not provide the continuous distribution of odor or fluid in use.

[0073] According to a third aspect of the present disclosure, there is provided a device comprising: a support member for supporting a box according to the first aspect or the second aspect of the present disclosure; and an actuating mechanism operable to interact with the box supported by the support member so as to cause liquid to flow from the container through the at least one porous member.

[0074] The device according to the third aspect of the present disclosure is particularly suitable for engaging with the box according to the first aspect and the second aspect, and is used to make the liquid flow through the at least one porous member from the container (via an actuating mechanism). As the liquid flows through the at least one porous member, the porous member is soaked, and then wicking through the at least one porous member reaches its outer surface. Then, at least a portion of the liquid can evaporate to provide a smell to the surrounding environment.

[0075] The device may be particularly suitable for home use and may provide an easily adjustable and controlled fragrance intensity to a room.

[0076] The actuation mechanism may include at least one actuator operable to squeeze a container of the cartridge supported by the support.

[0077] For example, in some embodiments, at least a portion of the container can be formed by a flexible material. The at least one actuator is operable to deform the flexible material of the box and squeeze the container. This can force at least a portion of the liquid in the container to enter the at least one porous member, where it can wick through the wall of the at least one porous member. Like this, the at least one actuator is operable to pump liquid from the container through the at least one porous member.

[0078] The container of the cartridge may be disposed beneath the at least one porous member when supported by the support.

[0079] The actuation mechanism may include a valve actuator operable to move between a first position in which a first passageway of a cassette supported by the support is open and a second position in which the first passageway of the cassette supported by the support is closed.

[0080] For embodiments of the cassette comprising a flexible membrane and a rigid body, the valve actuator is operable to move to press the flexible membrane into contact with the rigid body and thereby close the first passageway when disposed in the second position.

[0081] The actuation mechanism may include a pump actuator operable to squeeze a container of the cassette supported by the support when the valve actuator is disposed in the second position.

[0082] It will be appreciated that the valve member and the pump member may comprise separate parts of a common body.

[0083] The actuation mechanism may include at least one actuator operable to: engage with a box supported by a support member to substantially isolate the second portion of the container from the first portion of the container; and move while still engaged with the box to force liquid through a second passage of the box to reach a second end of the at least one porous member of the box.

[0084] The actuator may be a linear actuator.

[0085] Alternatively, the actuator may be a rotary actuator comprising three protrusions.

[0086] The actuation mechanism is operable to rotate a cartridge supported by the support 180° about an axis substantially perpendicular to the at least one porous member of the cartridge.

[0087] The device may also include a liquid release actuator operable to engage with and actuate a seal breaking actuator of a cartridge supported by the support member to release liquid so that the liquid can flow through the at least one porous member of the cartridge.

[0088] The liquid release actuator is operable to actuate a valve of the cartridge supported by the support to fluidly connect the storage container of the cartridge and the at least one porous member of the cartridge.

[0089] The support may define a volume for receiving the box.

[0090] The support may be arranged so that the porous member of the box supported thereby is substantially vertical.

[0091] The apparatus may further comprise a fan operable to provide an air flow adjacent the or each porous member of the cassette supported by the support.

[0092] The device may further comprise a housing arranged to at least partially surround the support and the cartridge supported thereby.

[0093] The body of the housing may define one or more vents.

[0094] The actuation mechanism may include: a first valve actuator; a second valve actuator; and a pump actuator.

[0095] The first valve actuator is operable to move (e.g., generally linearly) between a first (closed) position in which the first valve actuator is not in contact with a cartridge supported by the housing and a second (open) position in which the first valve actuator contacts and actuates a first valve member of the cartridge.

[0096] Similarly, the second valve actuator is operable to move (e.g., substantially linearly) between a first (closed) position in which the second valve actuator is not in contact with the cartridge supported by the housing, and a second (open) position in which the second valve actuator contacts and actuates the second valve member of the cartridge.

[0097] The pump actuator is operable to squeeze a container of a cassette supported by the housing. In particular, the pump actuator is operable to deform a flexible membrane of the cassette and squeeze the container. To achieve this, the pump actuator can be moved between a first (storage) position, in which the pump actuator is not in contact with the cassette supported by the housing, and a second (squeezing) position, in which the pump actuator deforms the flexible membrane of the cassette and squeezes the container.

[0098] The apparatus is operable to: (i) cause liquid to flow from a container of a cartridge supported by the housing through a porous member; and (ii) allow liquid to flow from the porous member back to the container of the cartridge.

[0099] Step (i) may include: (a) moving the second valve actuator to its second (open) position, thereby moving the second valve member of the cartridge to the open position; and (b) moving the pump actuator to the second (squeezing) position, thereby squeezing a container of the cartridge supported by the housing.

[0100] Once a dose of volatile liquid vapour has been delivered to the porous member (eg after a suitable period of time), the scent dispenser is operable to move the second valve actuator to its first (closed) position, thereby moving the second valve member to the closed position.

[0101] Once a dose of volatile liquid vapour has been delivered to the porous member, the scent dispenser is operable to move the pump actuator to the first (storage) position so that it no longer compresses the container of the cartridge.

[0102] Step (ii) may comprise moving the first valve actuator to its second (open) position, thereby moving the first valve member of the cassette to the open position.

[0103] This opens the first passage, allowing liquid that has exited the porous member and entered the first recess to flow through the first valve and back into the container (defined by the second recess).

[0104] Once excess liquid has drained through the first valve and back into the container (eg after a suitable period of time), the scent dispenser is operable to move the first valve actuator to its first (closed) position, thereby moving the first valve member to the closed position.

[0105] The scent dispenser is operable to perform a method comprising the steps of: (a) opening a second passage of a box supported by a housing; (b) squeezing a container of the box to deform a membrane; (c) closing the second passage of the box; (d) stopping squeezing the container; (e) opening a first passage of the box; and (f) closing the first passage.

[0106] The first valve actuator, the second valve actuator and the pump actuator may each be biased toward their first positions by a biasing mechanism.

[0107] The apparatus may further comprise a camshaft comprising a plurality of cams and a motor arranged to rotate the camshaft about its axis.

[0108] Each of the plurality of cams may be arranged to engage and move a different actuator of the device.

[0109] According to a fourth aspect of the present disclosure, a system is provided, comprising: the box according to the first aspect or the second aspect of the present disclosure; and the device according to the third aspect of the present disclosure.

[0110] It will be apparent to those skilled in the art that the various aspects and features of the present disclosure set forth above or below may be combined with various other aspects and features of the present invention.

[0111] Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0112] - Figure 1A is a perspective view of a first embodiment of a cartridge for a scent dispenser according to the present disclosure;

[0113] - Figure 1B yes Figure 1A An exploded perspective view of the box shown;

[0114] - Figure 1C yes Figure 1A and Figure 1B A plan view of the box shown (with the transparent flexible member or the flexible member removed);

[0115] - Figure 2 is a cross-sectional view of a first embodiment of a scent dispenser according to the present disclosure, wherein Figures 1A to 1C The box shown;

[0116] - Figures 3A to 3G Schematically shows Figure 2 How does the scent dispenser shown allow liquid to flow from Figures 1A to 1C The container of the box shown flows through Figures 1A to 1C The porous member of the box shown;

[0117] - Figure 4A is a perspective view of a second embodiment of a cartridge for a scent dispenser according to the present disclosure;

[0118] - Figure 4B yes Figure 4A An exploded perspective view of the box shown;

[0119] - Figure 4C yes Figure 4A and Figure 4B A plan view of the box shown (with or without the transparent flexible member removed);

[0120] - Figure 5 is a cross-sectional view of a second embodiment of the scent dispenser according to the present disclosure, wherein FIG. 4A to FIG. 4C The box shown;

[0121] - FIG. 6A to FIG. 6G Schematically shows Figure 5 How does the scent dispenser shown allow liquid to flow from FIG. 4A to FIG. 4C The container of the box shown flows through FIG. 4A to FIG. 4C The porous member of the box shown;

[0122] - Fig. 7A is a perspective view of a third embodiment of a cartridge for a scent dispenser according to the present disclosure;

[0123] - Figure 7B yes Fig. 7A An exploded perspective view of the box shown;

[0124] - Figure 7C yes Fig. 7A and Figure 7B A plan view of the box shown (with or without the transparent flexible member removed);

[0125] - Figure 8 is a cross-sectional view of a third embodiment of a scent dispenser according to the present disclosure, wherein FIG. 7A to FIG. 7C The box shown;

[0126] - FIG. 9A to FIG. 9G Schematically shows Figure 8 How does the scent dispenser shown allow liquid to flow from FIG. 7A to FIG. 7C The container of the box shown flows through FIG. 7A to FIG. 7C The porous member of the box shown;

[0127] - FIG. 10A to FIG. 10C showing three different perspective views of parts of a fourth embodiment of a cartridge for a scent dispenser according to the present disclosure;

[0128] - Fig.11A and Fig. 11B They are shown respectively FIG. 10A to FIG. 10C The arrangement shown is a cross-section along line AA, with its valve member arranged in the closed configuration ( Fig.11A ) and open configuration ( Fig. 11B );

[0129] - Fig. 12A shows a plan view of a fifth embodiment of a cartridge for a scent dispenser according to the present disclosure;

[0130] - Fig. 12B Shows Fig. 12A A cross section of the box shown in along line BB;

[0131] - Fig. 12C Shows Fig. 12A A first perspective view of the box shown;

[0132] - Fig.12D Shows Fig. 12A a second perspective view of the box shown;

[0133] - Fig.13A Shows FIG. 12A to FIG. 12D A first stereoscopic view of the rigid body of the cartridge is shown (valve and porous member removed);

[0134] - Fig. 13B Shows FIG. 12A to FIG. 12D A second perspective view of the rigid body of the cartridge is shown (with valve and porous member removed);

[0135] - Fig.14Ais a perspective view of an embodiment of a scent dispenser according to an embodiment of the present disclosure, generally viewed from a first side (which may be referred to as a front side) (a portion of the scent dispenser is removed for ease of understanding); and

[0136] - Fig. 14B yes Fig.14A A perspective view of the scent dispenser shown, generally viewed from a second side (also referred to as a rear side) opposite to the first side (a portion of the scent dispenser is removed for ease of understanding), FIG. 12A to FIG. 13B A cartridge of the type shown is received in a scent dispenser.

[0137] Now refer to Figures 1A to 3G A first embodiment of the cartridge 100 and scent dispenser 200 is described.

[0138] The cartridge 100 comprises a rigid body 102 , four porous members 104 , a capsule 106 containing a liquid (eg perfume), a piercing member 108 and a flexible membrane 110 .

[0139] The rigid body 102 may be formed, for example, from a plastic material. For example, the rigid body 102 may be formed by injection molding. As described below, the rigid body defines various recesses and channels.

[0140] The porous member 104 can be referred to as a core. Each porous member 104 is elongated and hollow. In this embodiment, each porous member 104 is normally in the form of a tube formed by a porous material. The porous member can be, for example, formed by polypropylene. Four porous members 104 are usually parallel to each other. Each end of each porous member 104 is connected or engaged with the rigid body 102.

[0141] Although this embodiment of the cartridge 100 includes four porous members 104, other embodiments may have a different number of porous members 104. Typically, the cartridge includes at least one porous member.

[0142] Capsule 106 comprises a sealed capsule that is hermetically sealed and contains a liquid. The liquid may include a perfume or other volatile liquid that is desired to be dispensed. Sealed capsule 106 may be at least partially formed of a flexible membrane or the like that may be pierced by piercing member 108 (as discussed further below).

[0143] The piercing member 108 is movably mounted to and sealed to the rigid body 102 of the cartridge 100 (as discussed further below).

[0144] The flexible film 110 may include any suitable plastic material. The flexible film 110 is sealed to the rigid body 102. For example, the flexible film 110 may be heat sealed to the rigid body 102, or connected to the rigid body 102 by any suitable adhesive.

[0145] Each end of each porous member 104 is connected or engaged with the rigid body 102. To this end, the rigid body 102 defines four first engagement features 112 and four second engagement features 114. The first end of each porous member 104 is engaged with one of the first engagement features 112, and the second end of each porous member 104 is engaged with one of the second engagement features 114.

[0146] The first engagement feature 112 and the second engagement feature 114 may include a boss or the like. In this embodiment, each second engagement feature 114 includes a hollow boss adapted to be received in the end of the porous member 104 (see Figure 1B ). The outer dimensions of the second engagement feature 114 may substantially match the inner dimensions of the porous member 104. Figure 1B and Figure 1C As shown, the second engagement feature 114 may be tapered, which facilitates its insertion into the porous member 104. In this embodiment, each first engagement feature 112 includes a boss adapted to receive an end of the porous member 104 (see Figure 1C ). The inner dimensions of the first engagement feature 112 may substantially match the outer dimensions of the porous member 104.

[0147] The first engagement feature 112 is hollow and can be considered a first passage. The rigid body 102 defines various recesses that are in fluid communication with the first engagement feature 112. All parts of the rigid body 102 disposed at the first end of the porous member 104 can be considered to form parts of the container. That is, in Figure 1C All parts of the intermediate rigid body 102 that are located below the porous member 104 can be considered to form parts of the container, as now discussed.

[0148] In this embodiment, the container is partially defined by three recesses 116, 118, 120 defined in the flexible membrane 110 and the rigid body 102. Once the flexible membrane 110 is sealed to the rigid body 102, the three recesses 116, 118, 120 remain in fluid communication with each other. The three recesses 116, 118, 120 are partially separated by one or more walls formed in the rigid body 102.

[0149] The first recess 116 is in direct communication with the first engagement feature 112 (which provides a first passage). The second recess 118 defines a chamber for receiving the sealed capsule 106. The chamber has an opening 122 (see Figure 1B) to allow the piercing member to move into the chamber and to allow the liquid to flow out of the chamber, which will be referred to below Figure 3B Further description: The third recess 120 is generally in the form of a substantially linear channel having a substantially uniform width.

[0150] The first recess 116 and the second recess 118 may be considered to be a first portion of the container, while the third recess 120 may be considered to form a second portion of the container.

[0151] The first part of the container is connected to the second part of the container only at one end of the substantially linear passage formed by the third recess 120 by a thinner connecting portion 124. A second passage 126 is provided at the other end of the third recess 120. The second passage is partially formed by a passage in the rigid body 102. The third recess 120 is in fluid communication with the second end of the porous member 104 via the second passage 126.

[0152] The size of the connecting portion 124 may be substantially the same as the size of the second passage 126. The size of the connecting portion 124 is less than half the size of the first and second portions of the container.

[0153] In use, the scent dispenser is operable to allow a liquid (e.g., perfume) to be provided from a container so as to flow through the porous member 104. To achieve this, the scent dispenser may be provided with any suitable actuation mechanism (described below). As the liquid flows through the porous member 104, it may saturate the porous member 104 and then wick through the porous member 104 to its outer surface. At least a portion of the liquid may then evaporate to provide a scent to the surrounding environment.

[0154] Compared to known arrangements comprising a solid core (liquid can wick axially along its length), Figures 1A to 1C The hollow porous member 104 of the box 100 shown provides many advantages. By pouring liquid from a container or pumping through the hollow porous member 104, substantially its entire inner surface can be saturated in a short time. Advantageously, compared with, for example, a solid porous member, this arrangement provides better control of the delivery of liquid or perfume. Different from the axial wicking of liquid along the length of a solid core, the entire inner surface of the hollow porous member all has the liquid of radially outward wicking, at which liquid can be transported to the air flow provided by the fan of a scent dispenser. In addition, the use of the hollow porous member 104 can prevent the porous member 104 from being excessively saturated, and excessive saturation can cause undesirable liquid leakage.

[0155] In use, the cartridge 100 is oriented so that the container is disposed below the porous member 104. Advantageously, the second passage 126 allows liquid to be provided to the second end of the porous member 104 (which, in use, is the top of the porous member 104). The liquid can then flow through the porous member 104 under the action of gravity. The first passage allows any excess liquid to drain from the first end of the porous member 104 (which, in use, is the bottom of the porous member 104) back into the container.

[0156] This arrangement provides good control over the delivery of liquid, particularly as the container is depleted.

[0157] Now refer to Figure 2 Description and Figures 1A to 1C The cartridge 100 is shown for use with a scent dispenser 200 .

[0158] The scent dispenser 200 includes a housing 202, a fan 204, and an actuator 206. The housing 202 defines a volume 208 for receiving the scent. Figures 1A to 1C The box 100 shown. Therefore, the housing 202 can be considered as a support for supporting the box 100. The housing 202 is arranged so that the porous member 104 of the box 100 supported by it is generally vertical. When supported by the housing 202, the container of the box 100 is disposed below the porous member 104. The housing 202 is arranged to generally surround the box 100 supported by it. The fan 204 is operable to provide airflow near the porous member 104. The body of the housing 202 defines one or more vents to promote the airflow and allow the airflow to leave the housing 202 to the surrounding environment or room.

[0159] The actuator 206 is operable to interact with the cartridge 100 supported by the housing 202 to cause liquid to flow from a container of the cartridge 100 through the porous member 104 .

[0160] The actuator 206 is operable to squeeze a container of the cartridge 100 supported by the housing 202. Specifically, the actuator 206 is operable to deform the flexible membrane 110 of the cartridge 100 and squeeze the container. This can force at least a portion of the liquid within the container through the second passage 126 and into the porous member 104, where the liquid can wick through the walls of the porous member 104. In this way, the actuator 206 is operable to pump liquid from the container through the porous member 104.

[0161] The actuator 206 is operable to engage the cartridge 100 supported by the housing 202 to substantially isolate the second portion of the container (formed by the third recess 120) from the first portion of the container (formed by the first recess 116 and the second recess 118). The actuator 206 is also operable to move while still engaged with the cartridge 100, thereby forcing liquid through the second passage 126 of the cartridge 100 to the second end of the porous member 104 of the cartridge 100.

[0162] The actuator 206 is a rotary actuator comprising a body 212 and three protrusions 214. It is the protrusions 214 that engage the cartridge 100, deform the flexible membrane 110, and force the liquid through the second passage 126 to the porous member 104.

[0163] The size and shape of the third recess 120 (which forms the second portion of the container) are generally complementary to the size and shape of the protrusion 214 of the actuator 206 .

[0164] Now refer to Figures 3A to 3G describe Figures 1A to 1C The box 100 and Figure 2 Operation of the scent dispenser is shown.

[0165] The capsule 106 can be considered a sealing mechanism that prevents liquid from flowing through the porous member 104. This arrangement advantageously prevents leakage (or passive emission) of the cartridge 100 during storage or transport.

[0166] The piercing member 108 is received in the aperture of the rigid body 102. The piercing member 108 is movably engaged with the rigid body 102 and may be considered a seal breaking actuator operable to break the capsule 106.

[0167] The piercing member 108 may be in a first storage position (see Figure 3A ) and a second actuation position (see Figure 3B ), in the second actuated position, the piercing member 108 extends into and pierces the sealed capsule 106. The scent dispenser 200 also includes a liquid release actuator 210, which is operable to engage with and move the piercing member 108 of the box 100 supported by the housing 202, thereby releasing liquid from the capsule 206.

[0168] Initially, as Figure 3A As shown, the capsule 106 is intact, sealing the liquid and preventing the liquid from leaking. Once the box 100 has been loaded into the scent dispenser 200, the liquid release actuator 210 will pierce the member 108 from the first storage position (see Figure 3A ) to the second actuation position (see Figure 3B ), in which position the piercing member 108 extends into the sealed capsule 106 and pierces the sealed capsule.

[0169] The wall defining the chamber 118 for receiving the capsule 106 is provided with an opening 122 to allow the piercing member 108 to move into the chamber 118. The opening 122 also allows liquid to flow out of the chamber 118 once the capsule 106 is pierced.

[0170] The opening 122 acts as a guide bushing for the piercing member 108. The opening 122 is generally circular, and the piercing member 108 includes a generally cylindrical portion having an outer dimension that generally matches the inner dimension of the opening 122. The generally cylindrical portion defines one or more axial recesses 128 to allow liquid to flow through the opening 122 when the piercing member 108 is received therein.

[0171] like Figure 3C and Figure 3D As shown, when the cartridge 100 is received in the housing 202 of the scent dispenser 200, the actuator 206 is arranged so that the protrusion 214 of the actuator 206 is adjacent to the third chamber 120. The protrusion 214 is generally in the form of a roller, and as the actuator 206 rotates about the rotation axis 215, the protrusion 214 can extend into the flexible membrane 110 and deform the flexible membrane 110. The outer dimensions of the protrusion 214 are smaller than and substantially match the inner dimensions of the substantially linear channel of the third recess 120.

[0172] like Figure 3E As shown, as the actuator 206 rotates about the axis 215, one of the protrusions 214 engages with the cartridge 100 supported by the housing 202 to at least partially isolate the second portion of the container (formed by the third recess 120) from the first portion of the container (formed by the first recess 116 and the second recess 118). As the actuator 206 continues to rotate, the protrusion 214 moves while still engaging the cartridge 100, as shown in FIG. Figure 3E This forces the liquid through the second passage 126 of the cartridge 100 to the second end of the porous member 104 of the cartridge 100 in a manner similar to a peristaltic pump. The three protrusions 214 (or rollers) on the actuator 206 can act as check valves. Figure 3F As shown, the first passage (formed by the hollow first engagement feature 112) allows any excess liquid to drain from the first end of the porous member 104 (which, in use, is the bottom of the porous member 104) back into the container. Figure 3F As shown, as the actuator 206 is further rotated, the protrusion 214 disengages from the cartridge 100, allowing a portion of the liquid (the next dose) to flow from the first portion of the container (formed by the first recess 116 and the second recess 118) into the second portion of the container (formed by the third recess 120). Figure 3GAs shown, as the actuator 206 is further rotated, another protrusion 214 engages the cartridge 100 and another dose of liquid may be delivered to the porous member 104 .

[0173] Figures 1A to 1C The illustrated cartridge 100 is superior to various known arrangements in which a (usually solid) wick is pre-impregnated with a volatile liquid or perfume, or in which the wick is partially disposed in a container of a volatile liquid or perfume. With such known arrangements, there is no way to control the rate at which fragrance is delivered to a room. The release of fragrance from such known arrangements depends solely on ambient conditions and how quickly the impregnated wick or perfume container can dry out. Furthermore, the fragrance delivery rate from such known arrangements is typically not constant, as the fragrance delivery rate decreases over time as the impregnated wick or perfume container dries out. In contrast, Figures 1A to 1C The cartridge 100 shown in has several advantages over such known arrangements. First, because the capsule 106 is hermetically sealed, the cartridge 100 is less susceptible to leakage or undesirable drying out of the cartridge 100 during storage. However, when the cartridge 100 is to be used, the piercing member 108 can be used to pierce the capsule 106 so that liquid can be dispensed. Note that even after the capsule 106 has been pierced, the porous member 104 is not disposed in a container containing liquid. Rather than relying on known passive arrangements in which the rate of fragrance dispensing cannot be controlled as the fragrance is provided to the surrounding environment, Figures 1A to 1C The box 100 and Figure 2 The scent dispenser 200 shown uses an active dispensing method (as described above with reference to Figures 3C to 3G The invention relates to a method for dispensing a perfume in a porous member 104, wherein when required, a dose of perfume is provided to the porous member 104. Advantageously, both the dose and the frequency of dispensing the dose can be controlled.

[0174] Now refer to FIG. 4A to FIG. 6G A second embodiment of the cartridge 100 and scent dispenser 200 is described. FIG. 4A to FIG. 6G The box 100 and the scent dispenser 200 shown are Figures 1A to 3G The box 100 and the scent dispenser 200 shown share many common features. In the following, only FIG. 4A to FIG. 6G The box 100 and the scent dispenser 200 shown are Figures 1A to 3G The differences between the box 100 and the scent dispenser 200 are shown.

[0175] In this embodiment, the generally linear third recess 120 has been replaced by a generally annular channel 130 having a generally uniform width. The first portion of the container (formed by the first recess 116 and the second recess 118) is connected to the second portion of the container (formed by the generally annular channel 130) by a thinner connecting portion 124 at only one circumferential position on the generally annular channel 130. The second passage 126 is connected to a different circumferential position on the generally annular channel 130.

[0176] Furthermore, the form of the rotary actuator 206 is adapted for interaction with the generally annular channel 130 .

[0177] In particular, the rotary actuator 206 has three protrusions 214, whose outer dimensions are smaller than and substantially match the inner dimensions of the substantially annular channel 130. In addition, the rotation axis 215 of the rotary actuator 206 is generally perpendicular to the rotation axis of the rotary actuator 206, such as Figure 2 3 and as described above. In use, the three protrusions 214 can move around the channel 130, forcing liquid through the second passage 126 to the second end of the porous member 104 in a manner similar to a peristaltic pump. The three protrusions 214 on a single rotary actuator 206 can act as a check valve.

[0178] FIG. 6A to FIG. 6G It is schematically shown in Figure 4A To the box 100 shown in FIG. 4G and Figure 5 Operation of the scent dispenser is shown.

[0179] The use of the piercing member 108 is substantially as described above with reference to Figure 3A and Figure 3B As described and not further discussed here, the piercing member is moved from the first storage position (see Fig. 6A ) moves to the second actuation position (see Figure 6B ), in the second actuated position, the piercing member extends into the sealed capsule 106 and pierces the sealed capsule.

[0180] like Figure 6C and Fig.6D As shown, when the cartridge 100 is received in the housing 202 of the scent dispenser 200, the actuator 206 is arranged so that the protrusion 214 of the actuator 206 is adjacent to the generally annular channel 130. As in the first embodiment, the protrusion 214 extends into the flexible membrane 110 and deforms the flexible membrane. The outer dimensions of the protrusion 214 are smaller than the inner dimensions of the generally annular channel 130 and substantially match the inner dimensions.

[0181] like Fig. 6EAs shown, at any given time, two protrusions 214 engage the cartridge 100 supported by the housing 202 to at least partially isolate a portion of the generally annular channel 130 adjacent the second passage 126 from the remainder of the generally annular channel 130. As the actuator 206 rotates about the axis 215, the three protrusions 214 move while still engaging the cartridge 100, as shown in FIG. Fig. 6E This forces at least a portion of the liquid contained in the portion of the generally annular channel 130 adjacent to the second passage 126 to pass through the second passage 126 of the cartridge 100 to the second end of the porous member 104 of the cartridge 100 in a manner similar to a peristaltic pump. The three protrusions 214 on the actuator 206 can act as check valves.

[0182] like Fig. 6F As shown, the first passage (formed by the hollow first engagement feature 112) allows any excess liquid to drain from the first end of the porous member 104 (which, in use, is the bottom of the porous member 104) back into the container. Fig. 6F As shown, as the actuator 206 rotates further, the two protrusions 214 that at least partially isolate the portion of the generally annular channel 130 adjacent to the second passage 126 rotate, thereby now isolating a portion of the generally annular channel 130 that is in fluid communication with the connecting portion 124. In this way, the portion of the generally annular channel 130 isolated by the pair of protrusions 214 can be replenished by the container.

[0183] like Figure 6G As shown, as the actuator 206 is further rotated, another dose of liquid may be delivered to the porous member 104 from a portion of the generally annular channel 130 separated by the next pair of adjacent protrusions 214 .

[0184] Now refer to 7A to 9H A third embodiment of the cartridge 100 and scent dispenser 200 is described. 7A to 9H The box 100 and the scent dispenser 200 shown are Figures 1A to 3G The box 100 and the scent dispenser 200 shown share many common features. In the following, only 7A to 9H The box 100 and the scent dispenser 200 shown are Figures 1A to 3G The differences between the box 100 and the scent dispenser 200 are shown.

[0185] The first major difference is that the cartridge 100 does not include a capsule 106 or a piercing member 108. More specifically, FIG. 7A to FIG. 7CThe illustrated cartridge 100 includes a storage container 132 and a valve member 134 operable to isolate the storage container 132 from the porous member 104. Initially, liquid is placed in the storage container 132 and the valve member 134 is placed in a closed configuration isolating the storage container 132 from the porous member 104 (see Fig. 9A ). The scent dispenser 200 is provided with an actuator operable to move the valve member 134 to an open configuration, thereby allowing liquid to flow from the storage container 132 into the porous member 104 (see Fig. 9B ).

[0186] The valve member 134 is operable to isolate the storage container 132 from all other parts of the cartridge 100. The storage container 132 is disposed at an end of the porous member 104 opposite the container.

[0187] The second major difference is that the container of the box 100 is defined by the first recess 136 and the second recess 138 (rather than the first recess 116, the second recess 118 and the third recess 120). In this embodiment, the first passage is provided with a valve mechanism that allows the first passage to be selectively opened or closed, as now discussed. Specifically, a wall 140 is provided that separates the first recess 136 from the second recess 138. The fluid communication between the first recess 136 and the second recess 138 is provided only by a notch or recess 142 in the wall 140, which provides a connection between the first recess 136 and the second recess 138 adjacent to the flexible membrane 110.

[0188] The valve mechanism can be actuated by squeezing the flexible membrane 110 so as to contact the rigid body 102, thereby closing the first passage (see FIG. 9E to FIG. 9H ). The flexible membrane 110 deforms, thereby closing the passage provided by the notch or recess 142 in the wall 140 .

[0189] Advantageously, the valve mechanism allows the first passage to be closed. Once closed, if the container is squeezed, liquid will be forced through the second passage 126 and delivered to the second end of the porous member 104 (in use, the second end is the top of at least one porous member). Once the liquid has been delivered to the second end of the porous member 104 via the second passage 126, the first passage can be opened to allow any excess liquid to flow back into the container.

[0190] The third major difference is that the scent dispenser 200 includes a valve actuator 216 and a pump actuator 218 .

[0191] The valve actuator 216 is operable to move between a first position and a second position, in which a first passageway of the cartridge 100 supported by the housing 202 is open (see FIG. Figure 8), in the second position, the first passage of the box 100 supported by the support is closed (see Fig.9F and Figure 9H ). The valve actuator 216 is operable to move so as to press the flexible membrane 110 to contact the rigid body 202 (near the wall 140 and the recess 142) and thereby close the first passage when disposed in the second position.

[0192] When the valve actuator 216 is in the second position (see Fig.9F and Figure 9H ), the pump actuator 218 is operable to squeeze the container of the cassette 100 supported by the housing 202. It should be understood that the valve actuator 216 and the pump actuator 218 may comprise separate parts of a common body.

[0193] Now refer to FIG. 10A to FIG. 11B A fourth embodiment of the cartridge 100 is described. The fourth embodiment of the cartridge 100 is similar to FIG. 7A to FIG. 7C The illustrated cartridges 100 share many common features and may be used in Figure 8 In the odor dispenser 200 of the type shown in A, FIG. 9C to FIG. 9H In the following, only FIG. 10A to FIG. 11B The box shown is FIG. 7A to FIG. 7C The differences between the boxes 100 are shown.

[0194] FIG. 10A to FIG. 10C Three perspective views of the rigid body 102 are shown. The porous member 104 is Fig. 10A and Fig. 10C Not shown, but in Fig. 10B Shown in .

[0195] Relative to FIG. 7A to FIG. 7C The primary difference of the illustrated cartridge 100 is that the cartridge of the fourth embodiment does not include a storage container 132 and a valve member 134 operable to isolate the storage container 132 from the porous member 104. More specifically, as will be described further below, in this embodiment, a valve member operable to isolate the main container (at least partially defined by the second recess 138) from all other parts of the cartridge (via both the first passage and the second passage) is provided.

[0196] Many variations have been made to achieve such an arrangement in which a valve member is provided which is operable to isolate the main container from all other parts of the cassette.

[0197] Relative to FIG. 7A to FIG. 7CA first difference of the illustrated box 100 is that the second passage comprises two passage portions 126a, 126b, each formed by an open channel in the rigid body 102. It should be understood that the two passage portions 126a, 126b are also partially formed by a flexible membrane 110 (not shown), which closes the open channel when the flexible membrane is sealed to the rigid body 102. A barrier portion 144 is provided between the two passage portions 126a, 126b, which is sealed to the flexible membrane 110. The two passage portions 126a, 126b are connected by a channel formed below the barrier portion 144.

[0198] Relative to FIG. 7A to FIG. 7C The second difference of the box 100 shown is that a second wall 146 is provided, which divides the second recess 138 into a main second recess 138a and an intermediate second recess 138b. In particular, the second wall 146 is arranged so that the intermediate second recess 138b is adjacent to the recess or recess 142 in the wall 140. That is, fluid communication is provided between the first recess 136 and the intermediate second recess 138b through the space between the rigid body 102 and the flexible member 110 provided by the recess or recess 142 in the wall 140. The only fluid communication between the first recess 136 and the second recess 138 is via the intermediate second recess 138b. The passage 148 is at least partially formed in the second wall 146. In use, the passage 148 at least partially formed in the second wall 146 can provide fluid communication between the intermediate second recess 138b and the main second recess 138a.

[0199] Note that the channel connecting the two passage portions 126 a , 126 b formed below the barrier portion 144 is adjacent to and above the passage 148 formed at least partially in the second wall 146 .

[0200] Relative to FIG. 7A to FIG. 7C A third difference of the cassette 100 shown in FIG. 1 is that a valve member 150 is provided, as now referred to in Fig.11A and Fig. 11B discussed. Fig.11A and Fig. 11B Each shows FIG. 10A to FIG. 10C The arrangement shown in FIG. Fig. 10A and Fig. 10B ) cross-section. The valve member 150 may be in at least a closed configuration (see Fig.11A ) and open the configuration (see Fig. 11B). When the valve member 150 is set in the closed configuration, the valve member 150 blocks both (a) the passage connecting the two passage portions 126a, 126b formed below the barrier portion 144 and (b) the passage 148 formed at least partially in the second wall 146. Thus, in the closed configuration, the valve member 150 isolates the container from the porous member 104 (see Fig.11A ). When the valve member 150 is set in the open configuration, both (a) the channel connecting the two passage portions 126a, 126b formed below the barrier portion 144 and (b) the passage 148 at least partially formed in the second wall 146 are partially open. Therefore, when the valve member 150 is set in the open configuration, the container formed by the main second recess 138a can be in fluid communication with both the first end and the second end of the porous member 104.

[0201] Relative to FIG. 7A to FIG. 7C A fourth difference of the cassette 100 shown in FIG. 1 is that the valve member 150 is provided with a biasing mechanism configured to bias the valve member 150 to a closed configuration, as will now be discussed. In particular, this embodiment further includes a rigid plate 152 connected to the rigid body 102. Fig. 10C It can be clearly seen that the rigid plate 152 is disposed on the side of the rigid body 102 opposite to the side on which the recesses 136, 138a, 138b and the channels 126a, 126b are formed. Fig.11A and Fig. 11B The rigid body 102 and the rigid plate 152 are connected, as shown, to form a two-piece housing for the valve member 150 and the spring 154. The spring 154 may be referred to as a biasing member. It should be understood that the connection between the rigid plate 152 and the rigid body 102 may be achieved in any of a variety of ways, such as an adhesive. Fig.11A and Fig. 11B In the arrangement shown, the valve member 150 and spring 154 may be placed in a hole in the rigid body 102. Subsequently, the rigid plate 152 may be coupled to the rigid body 102 such that the valve member 150 and spring 154 remain captured between the rigid plate 152 and the rigid body 102, and the spring 154 is in a compressed state, biasing the valve member toward the closed configuration.

[0202] Ultrasonic welding or sealing may be used to attach the rigid plate 152 to the rigid body 102. A locating feature 194 may be provided (e.g., see Fig. 12A ) to aid in the assembly and welding or sealing process.

[0203] In this embodiment, the rigid plate 152 is received in a recess formed in one side of the rigid body 102. Thus, the inner surface of the primary second recess 138a defines a step 156 (see FIG. Fig. 10A and Fig. 10B).

[0204] The valve member 150 includes a first portion 158 and a second portion 160. The outer dimensions of the first portion 158 are substantially matched to the inner dimensions of the passageway formed below the barrier portion 144 connecting the two passageway portions 126a, 126b. When the valve member 150 is set in the closed configuration, the first portion 158 is received in the passageway formed below the barrier portion 144 connecting the two passageway portions 126a, 126b and normally blocks the passageway. The outer dimensions of the second portion 160 are substantially matched to the inner dimensions of the passageway 148 at least partially formed in the second wall 146. When the valve member 150 is set in the closed configuration, the second portion 160 is received in the passageway 148 at least partially formed in the second wall 146 and normally blocks the passageway 148.

[0205] The passage formed below the barrier portion 144 connecting the two passage portions 126a, 126b and the passage 148 formed at least partially in the second wall 146 are two different parts of a single recess formed in the rigid body 102. However, the valve member 150 seals against the rigid body 102 so that the passage formed below the barrier portion 144 connecting the two passage portions 126a, 126b and the passage 148 formed at least partially in the second wall 146 are not in fluid communication.

[0206] like FIG. 7A to FIG. 7C In the embodiment shown in FIG. 1 , the notch or recess 142 in the wall 140 in combination with the flexible membrane 110 provides a valve mechanism that allows the first passage to be selectively opened or closed by deformation of the flexible membrane 110, as described above with reference to FIG. FIG. 9E to FIG. 9H As discussed.

[0207] With this embodiment, initially, liquid is placed in the container (at least partially defined by the primary second recess 138a), and the valve member 150 is placed in a closed configuration isolating the container from the porous member 104 (see Fig.11A As will now be discussed, the scent dispenser 200 is provided with an actuator operable to act on the engagement feature 162 of the valve member 150, thereby moving the valve member 150 to an open configuration to allow liquid to flow from the container into the porous member 104 via the second passages 126a, 126b (see Fig. 11B ).

[0208] The valve member 150 defines an engagement feature 162. A groove 164 is defined on one side of the rigid body 102 that is connected to the rigid plate 152. The engagement feature 162 of the valve member 150 extends through the open face of the groove 164, thereby forming a substantially closed passage.

[0209] In use, the cartridge may be inserted into the scent dispenser 200, for example, through an orifice defined in the scent dispenser 200. During such insertion, the cartridge may move in a direction generally parallel to the groove 164 defined in the rigid body 102. As the cartridge is inserted into the scent dispenser 200, a portion of the scent dispenser 200 may be received in the groove 164. The portion of the scent dispenser 200 received in the groove 164 is larger in size than the generally closed passage formed by the engagement feature 162 of the valve member 150 and the groove 164. As the portion of the scent dispenser 200 received in the groove 164 contacts the engagement feature 162 of the valve member 150, it acts to overcome the biasing spring 154 and moves the valve member 150 toward the open configuration.

[0210] Relative to FIG. 7A to FIG. 7C Another difference of the illustrated cartridge 100 is that in this embodiment, a rack 166 is formed on the surface of the rigid body 102. In use, the cartridge can be inserted into the scent dispenser 200, for example, through an aperture defined in the scent dispenser 200. After a portion of the cartridge is so inserted, a pinion within the scent dispenser 200 can act on the rack 166 formed on the surface of the rigid body 102, thereby pulling the cartridge completely into the scent dispenser 200.

[0211] Relative to FIG. 7A to FIG. 7C Another difference of the illustrated cartridge 100 is that in this embodiment the cartridge includes five porous members 104 that are substantially parallel to one another.

[0212] Relative to FIG. 7A to FIG. 7C Another difference of the illustrated cartridge 100 is that a reinforcing rib 168 is disposed on the rigid body 102 adjacent each porous member 104 .

[0213] Now refer to FIG. 12A to FIG. 13B A fifth embodiment of the cartridge 100 is described. The fifth embodiment of the cartridge 100 is similar to FIG. 10A to FIG. 11B The boxes 100 shown share many common features. FIG. 12A to FIG. 13B The box shown is FIG. 10A to FIG. 11B The differences between the boxes 100 are shown.

[0214] Fig. 12A A plan view of a fifth embodiment of a cassette 100 is shown; Fig. 12B A fifth embodiment of the cartridge 100 is shown along line BB (see Fig. 12A ) cross section; Fig. 12C and Fig.12D Two perspective views of a fifth embodiment of a cassette 100 are shown.

[0215] Fig.13AA first perspective view of the rigid body of the fifth embodiment of the cartridge 100 is shown (with the valve and porous member 104 removed); Fig. 13B A second perspective view of the rigid body of the fifth embodiment of the cartridge 100 is shown (with the valve and porous member 104 removed).

[0216] like FIG. 10A to FIG. 11B As with the illustrated cartridge 100, in this embodiment a valve member is provided which is operable to isolate the main container (at least partially defined by the second recess 138) from all other parts of the cartridge (via both the first and second passageways). FIG. 10A to FIG. 11B The first difference of the illustrated cassette 100 is that the fifth embodiment includes two valve members that together are operable to isolate the primary container from all other parts of the cassette. Specifically, a first valve member 170 is provided that is operable to open or close the first passage (between the first recess 136 and the second recess 138), and a second valve member 172 is provided that is operable to open or close the second passage 126 (specifically, between the first portion 126a of the second passage and the second portion 126b of the second passage).

[0217] The first valve member 170 and the second valve member 172 are both received in a stepped hole of the rigid body 102, which defines an annular seat. When one of the valve members 170, 172 contacts the corresponding annular seat, the valve is closed, and when the valve members 170, 172 are separated from the corresponding annular seat, the valve is opened.

[0218] The second valve member 172 is in contact with FIG. 10A to FIG. 11B 100. In this embodiment, the second valve member 172 does not control or restrict the first passage (between the first recess 136 and the second recess 138). With respect to the second passage 126, the second valve member 172 is positioned in a manner similar to the single valve member 150 of the cassette 100 shown. FIG. 10A to FIG. 11B The single valve member 150 of the illustrated cassette 100 functions in a similar manner. FIG. 10A to FIG. 11BThe illustrated cartridge 100 has undergone a number of changes to allow the second valve member 172 to be actuated by an actuator facing the open surface of the rigid body 102 (i.e., the surface to which the flexible film is adhered), as will now be discussed. First, the second valve member 172 has been moved to the inside of the barrier portion 144 (which separates the first portion 126a of the second passage from the second portion 126b of the second passage). Second, the second valve member 172 is surrounded by a circular wall 174 (which forms part of the wall 140 separating the first recess 136 from the second recess 138). When the film is adhered to the open surface of the rigid body 102, the circular wall 174 defines a generally circular channel 176. When the second valve member 172 is disposed in the closed position, the generally circular channel 176 is a generally annular channel. In addition, the generally circular channel 176 is in fluid communication with the second portion 126b of the second passage. Third, although both the first portion 126a of the second passage and the second portion 126b of the second passage are in communication with the hole in which the second valve member 172 is disposed, they are in communication at different depths (measured from the surface to which the flexible membrane is adhered). A generally circular passage 176 defined by a circular wall 174 is in fluid communication with the second portion 126b of the second passage, while the first portion 126a of the second passage is in communication with another portion 178 of the (stepped) hole that accommodates the second valve member 172. The circular passage 176 and the portion 178 of the (stepped) hole in communication with the first portion 126a of the second passage (in which the second valve member 172 is received) are separated by a generally annular valve seat 180.

[0219] Relative to FIG. 10A to FIG. 11B Another difference of the box 100 shown is that the box of the fifth embodiment does not have a second wall dividing the second recess 138 into two parts. In fact, the intermediate second recess 138b and the first recess 136 have been merged together.

[0220] In addition, relative to FIG. 10A to FIG. 11B Another difference of the illustrated cassette 100 is that the wall 140 does not define a notch or recess 142 to provide fluid communication between the first recess 136 and the second recess 138. Rather, a first valve 170 is disposed in the first wall 140. As will be discussed further below, the first valve member 170 is also arranged to be actuated by an actuator facing the open surface of the rigid body 102 (i.e., the surface to which the flexible membrane is adhered).

[0221] The first valve member 170 is surrounded by a semicircular wall 182 (which forms part of the wall 140 separating the first recess 136 and the second recess 138). When the membrane is adhered to the open surface of the rigid body 102, the circular wall 174 defines a generally semicircular channel 184. When the first valve member 170 is set in the closed position, the generally semicircular channel 184 is a generally semi-annular channel. In addition, the generally semicircular channel 184 is in fluid communication with the first recess 136. The second recess 138 is also in fluid communication with the hole in which the first valve member 170 is arranged, however, it is connected at a different depth (from the surface to which the flexible membrane is adhered) to the generally semicircular channel 184. The second recess 138 is connected to another part 186 of the (stepped) hole in which the first valve member 170 is accommodated via a passage 188 (see Fig. 12C The substantially semicircular passage 184 and a portion 186 of the (stepped) hole communicating with the second recess 138 (in which the first valve member 170 is received) are separated by a substantially annular valve seat 190 .

[0222] In practice, by using valve actuator 216 (see Figure 8 and the accompanying description) presses the membrane 110 into contact with the recess 142 in the wall 140, and the first valve 170 replaces the previously formed valve (see FIG. 7A to FIG. 7C and accompanying description).

[0223] The first valve member 170 and the second valve member 170 can both be in at least a closed configuration (see FIG. 12A to FIG. 12D ) and an open configuration. When the first valve member 170 is set in the closed configuration, the first valve member 170 blocks the first passage (partially formed by the passage 188, a portion 186 of the (stepped) hole accommodating the first valve member 170, and the generally semicircular channel 184). When the second valve member 172 is set in the closed configuration, the second valve member 172 blocks the passage between the two passage portions 126a, 126b of the second passage. Therefore, when both the first valve member 170 and the second valve member 172 are in the closed configuration, they isolate the container (formed by the second recess 138 and the membrane) from the porous member 104.

[0224] When the second valve member 172 is set in the open configuration, the two passage portions 126a, 126b of the second passage are in fluid communication, and fluid can be pumped from the container upward to the second end of the porous member 104. When the first valve member 170 is set in the open configuration, the first recess 136 and the second recess 138 are in fluid communication, and fluid can be returned to the container from the first end of the porous member 104. In addition, when the first valve member 170 is set in the open configuration, air can flow through the first valve and into the container (formed by the second recess 138 and the membrane), balancing the pressure difference across the membrane. That is, when the first valve is opened, a partial vacuum that may have been formed in the container (for example, if the second valve is closed before the pump actuator that squeezes the container stops squeezing the container, see below) can be neutralized.

[0225] like FIG. 10A to FIG. 11B Like the valve member 150 of the fourth embodiment shown, the first valve member 170 and the second valve member 172 are each provided with a biasing mechanism arranged to bias the valve members 170, 172 to a closed configuration, as will now be discussed. In particular, this embodiment further comprises a rigid plate 152 connected to the rigid body 102. Fig. 12B As can be clearly seen in the figure, the rigid plate 152 is disposed on the side of the rigid body 102 opposite the side on which the recesses 136, 138 (and the channels 126a, 126b) are formed. The rigid body 102 and the rigid plate 152 are connected to form a two-piece housing for the first valve member 170 and the second valve member 172 and the two springs 154. The springs 154 may be referred to as biasing members. It should be understood that the connection between the rigid plate 152 and the rigid body 102 may be achieved in any of a variety of ways, such as an adhesive. For assembly FIG. 12A to FIG. 12D In the arrangement shown, each valve member 170, 172 may be placed in a hole in the rigid body 102 along with the spring 154. Subsequently, the rigid plate 152 may be coupled to the rigid body 102 such that the valve members 170, 172 and the spring 154 remain captured between the rigid plate 152 and the rigid body 102, and the spring 154 is in a compressed state, biasing the valve members 170, 172 toward the closed configuration.

[0226] Likewise, in this embodiment, the rigid plate 152 is received in a recess formed in one side of the rigid body 102. Thus, the inner surface of the second recess 138 defines a step 156 (see FIG. Fig. 12A , Fig. 12C and Fig.12D ).

[0227] The first valve member 170 includes a first portion 170a and a second portion 170b. The outer dimensions of the first portion 170a substantially match the inner dimensions of the substantially annular valve seat 190. The outer dimensions of the second portion 170b substantially match the inner dimensions of a portion 186 of a (stepped) hole (in which the first valve member 170 is received) that communicates with the second recess 138. A seal 192 is provided between the substantially annular valve seat 190 and a shoulder formed between the first portion 170a and the second portion 170b of the first valve member 170.

[0228] The second valve member 172 includes a first portion 172a and a second portion 172b. The outer dimensions of the first portion 172a substantially match the inner dimensions of the substantially annular valve seat 180. The outer dimensions of the second portion 172b substantially match the inner dimensions of a portion 178 of the (stepped) bore (in which the second valve member 172 is received) that communicates with the first portion 126a of the second passageway. A seal 192 is disposed between the substantially annular valve seat 190 and a shoulder formed between the first portion 170a and the second portion 170b of the first valve member 170.

[0229] For this embodiment, initially, liquid is placed in the container (at least partially defined by the second recess 138), and the first and second valve members 150 are placed in a closed configuration isolating the container from the porous member 104. As will now be discussed, the scent dispenser 200 is provided with two valve actuators, each of which is operable to act on one of the valve members 170, 172 to move the valve members 170, 172 to an open configuration (thereby opening the first passage or the second passage, respectively).

[0230] like FIG. 10A to FIG. 11B As with the cartridge 100 shown, a rack (not shown) may be formed on the surface of the rigid body 102. In use, the cartridge may be inserted into the scent dispenser 200, for example, through an aperture defined in the scent dispenser 200. After a portion of the cartridge is so inserted, a pinion within the scent dispenser 200 may act on the rack formed on the surface of the rigid body 102, thereby pulling the cartridge completely into the scent dispenser 200.

[0231] In this embodiment, the rigid body 102 defines an inlet 196 for the fluid. A generally cylindrical flange or boss 196a is provided around the inlet 196. The inlet 196 provides access through the wall of the rigid body 102 into the container (defined by the second recess 138 and the membrane) to allow the container to be filled with fluid (once the membrane has been sealed to the rigid body 102). Once the container has been filled with fluid, a plug (not shown) is inserted into the inlet 196 and sealed to the rigid body 102. When the plug is inserted into the inlet 196, the rigid body 102 may be subjected to a force in the direction indicated by arrow C. A generally triangular rib 198 is provided adjacent to the inlet 196 to provide increased strength to avoid (or at least reduce) deformation of the rigid body 102 when the plug is inserted into the inlet 196 and the rigid body is subjected to such force.

[0232] FIG. 12A to FIG. 13B The box 100 shown (for example, relative to FIG. 10A to FIG. 11B One advantage of the cartridge 100 shown is that the first valve member 170 and the second valve member 172 can remain in a closed state by default even if the cartridge 100 has been loaded into the scent dispenser 200. This can reduce unnecessary spillage or leakage of the volatile liquid. In addition, it can further reduce any passive distribution of the volatile liquid vapor, thereby potentially further improving the control of the volatile liquid vapor distribution.

[0233] Now refer to Fig.14A and Fig. 14B Another embodiment of a scent dispenser 200 is described, which is suitable for receiving FIG. 12A to FIG. 13B The scent dispenser 200 may be used with a cartridge 100 of the type shown and actuated to release a dose of volatile liquid vapor. Figure 2 , Figure 5 and Figure 8 The illustrated scent dispensers 200 share many common features.

[0234] Fig.14A 2 is a perspective view of the scent dispenser 200 generally viewed from a first side (which may be referred to as a front side) (a portion of the scent dispenser 200 is removed for ease of understanding). Fig. 14B is a perspective view of the scent dispenser 200 generally viewed from a second side (also referred to as a rear side) opposite to the first side (a portion of the scent dispenser 200 is removed for ease of understanding), FIG. 12A to FIG. 13B A cartridge 100 of the type shown is received in the scent dispenser 200 .

[0235] The odor dispenser 200 includes: a housing 202 and a fan 204 (only in Fig.14A ). The housing 202 defines a housing for accommodating FIG. 12A to FIG. 13BThe volume 208 of the cartridge 100 shown. Thus, the housing 202 can be considered a support for supporting the cartridge 100. The housing 202 is arranged so that the porous member 104 of the cartridge 100 supported thereby is generally vertical. When supported by the housing 202, the container of the cartridge 100 is disposed below the porous member 104. The housing 202 is arranged to generally surround the cartridge 100 supported thereby (it should be understood that in Fig.14A and Fig. 14B At least a portion of the housing has been removed). The fan 204 is operable to provide airflow near the porous member 104. The body (not shown) of the housing 202 may define one or more vents to facilitate the airflow and allow the airflow to exit the housing 202 to the surrounding environment or room.

[0236] The scent dispenser 200 also includes a pinion 220 and a motor 222 operable to rotate the pinion 220. In use, the cartridge 100 may be inserted into the scent dispenser 200, for example, through an aperture (in Fig.14A and Fig. 14B The top of the box 100 is inserted into the scent dispenser 200. After a portion of the box 100 has been so inserted, the pinion 220 in the scent dispenser 200 acts on the rack formed on the surface of the rigid body 102, thereby pulling the box 100 completely into the scent dispenser 200.

[0237] The scent dispenser 200 also includes: a first valve actuator 224; a second valve actuator 226; and a pump actuator 228.

[0238] The first valve actuator 224 is operable to move (e.g., generally linearly) between a first (closed) position in which the first valve actuator 224 is not in contact with the cartridge 100 supported by the housing 202 and a second (open) position in which the first valve actuator 224 contacts and actuates the first valve member 170. That is, when in the second position, the first valve actuator 224 acts against the spring 154 to push the first valve member 170 away from the generally annular valve seat 190, thereby opening the first valve (i.e., opening the first passage).

[0239] Similarly, the second valve actuator 226 is operable to move (e.g., generally linearly) between a first (closed) position in which the second valve actuator 226 is not in contact with the cartridge 100 supported by the housing 202, and a second (open) position in which the second valve actuator 226 contacts and actuates the second valve member 172. That is, when in the second position, the second valve actuator 226 acts against the spring 154 to push the first valve member 172 away from the generally annular valve seat 180, thereby opening the second valve (i.e., opening the second passages 126a, 126b).

[0240] The pump actuator 22 is operable to squeeze the container of the box 100 supported by the housing 202. Specifically, the pump actuator 228 is operable to deform the flexible membrane 110 of the box 100 and squeeze the container. To this end, the pump actuator 228 can move between a first (storage) position and a second (squeezing) position, in which the pump actuator 228 does not contact the box 100 supported by the housing 202, and in the second (squeezing) position, the pump actuator 228 deforms the flexible membrane 110 of the box 100 and squeezes the container. The movement of the pump actuator 228 between the first position and the second position may include linear or rotational movement. In one embodiment, the scent dispenser 200 is operable to rotate the pump actuator 228 around the axis 230.

[0241] The first valve actuator 224, the second valve actuator 226, and the pump actuator 228 are operable to interact with the cartridge 100 supported by the housing 202 to cause liquid to flow from a container of the cartridge 100 through the porous member 104, as now discussed.

[0242] The scent dispenser 200 is operable to perform the following steps: (i) dose the porous member 104 (i.e., cause liquid to flow from the container of the box 100 through the porous member 104); (ii) drain the porous member 104 (i.e., allow liquid to flow from the porous member 104 back to the container of the box 100).

[0243] The dosing of the porous member 104 will now be described.

[0244] When the first valve actuator 224 is in its first (closed) position, the first passage remains closed. In order to pump liquid from the container to the second (top) end of the porous member 104, the scent dispenser 200 can be operated so that: (a) the second valve actuator 226 is moved to its second (open) position, thereby moving the second valve member 172 to the open position; and (b) the pump actuator 228 is moved to the second (squeezing) position, thereby squeezing the container of the box 100 supported by the housing 202. By squeezing the container in this way, the pump actuator 228 can force at least a portion of the liquid in the container (via the second valve opened) to pass through the second passage 126a, 126b and enter the porous member 104, where it can wick through the wall of the porous member 104. In this way, the second valve actuator 226 and the pump actuator 228 are operable to pump liquid from the container through the porous member 104.

[0245] Preferably, when liquid is pumped from the container to the second (top) end of the porous member 104, the scent dispenser 200 is operable to first move the second valve actuator 226 to its second (open) position, thereby moving the second valve member 172 to the open position; and secondly subsequently move the pump actuator 228 to the second (squeezing) position, thereby squeezing the container of the box 100 supported by the housing 202. This can reduce the pressure on the membrane and avoid rupture of the membrane.

[0246] Once a dose of volatile liquid vapor has been delivered to the porous member 104 (e.g., after a suitable period of time), the scent dispenser 200 is operable to move the second valve actuator 226 to its first (closed) position, thereby moving the second valve member 172 to the closed position.

[0247] The scent dispenser 200 may also be operable so that once a dose of volatile liquid vapor has been delivered to the porous member 104 , the pump actuator 228 is moved to the first (storage) position so that it no longer squeezes the container of the cartridge 100 .

[0248] In one embodiment, once a dose of volatile liquid vapor has been delivered to the porous member 104, first the second valve actuator 226 is moved to its first (closed) position, thereby moving the second valve member 172 to the closed position, and secondly, subsequently, the pump actuator 228 is moved to the first (storage) position so that it no longer compresses the container of the cartridge 100. The skilled person will recognize that other sequences of these steps are possible.

[0249] The draining of the porous member 104 will now be described.

[0250] The scent dispenser 200 is operable to move the first valve actuator 224 to its second (open) position, thereby moving the first valve member 170 to the open position. This opens the first passage, allowing liquid discharged from the porous member 104 and entering the first recess 136 to flow through the first valve and back into the container (defined by the second recess 138).

[0251] In one embodiment, the scent dispenser 200 is operable to move the first valve actuator 224 to its second (open) position to move the first valve member 170 to the open position substantially simultaneously with the pump actuator 228 moving to the first (storage) position so that it no longer squeezes the container of the cartridge 100. The skilled person will recognize that other sequences of these steps are possible.

[0252] Once excess liquid has drained through the first valve and back into the container (e.g., after a suitable period of time), the scent dispenser 200 is operable to move the first valve actuator 224 to its first (closed) position, thereby moving the first valve member 170 to the closed position.

[0253] The scent dispenser 200 is operable to perform a method comprising the following steps: (a) opening the second passage (e.g., by moving the second valve actuator 226 to the second (open) position); (b) squeezing the container to deform the membrane (e.g., by moving the pump actuator 228 to the second (squeezing) position); (c) closing the second passage (e.g., by moving the second valve actuator 226 to the first (closed) position); (d) stopping squeezing the container (e.g., by moving the pump actuator 228 to the first (storage) position); (e) opening the first passage (e.g., by moving the first valve actuator 224 to the second (open) position); and (f) closing the first passage (e.g., by moving the first valve actuator 224 to the first (closed) position). The skilled person will appreciate that, although in one embodiment, the steps are in the following order: step (a); step (b); step (c); steps (d) and (e) are performed simultaneously; and then step (f) is performed, the steps may be applied in any order.

[0254] The first valve actuator 224, the second valve actuator 226, and the pump actuator 228 may comprise separate portions of a common body.

[0255] In this embodiment, the first valve actuator 224, the second valve actuator 226, and the pump actuator 228 are each biased toward their first positions by a spring (or other resilient biasing mechanism).

[0256] In this embodiment, the scent dispenser further comprises: a camshaft 232, the camshaft comprising three cams 234, 236, 238; and a motor 240, the motor being arranged to rotate the camshaft 232 about its axis 242. As the camshaft 232 rotates about the axis 242, each of the three cams 234, 236, 238 is arranged to engage with and move a corresponding one of the first valve actuator 224, the second valve actuator 226, and the pump actuator 228. By appropriate design of the camshaft 232, a single complete rotation of the camshaft 232 about its axis 242 can actuate the first valve actuator 224, the second valve actuator 226, and the pump actuator 228 in an appropriate sequence, thereby implementing the above-described method. That is, a single complete rotation of the camshaft 232 about its axis 242 can cause the scent dispenser 200 to: (i) meter the porous member 104 (i.e., cause liquid to flow from the container of the box 100 through the porous member 104); and (ii) drain the porous member 104 (i.e., allow excess liquid to flow from the porous member 104 back into the container of the box 100).

[0257] In alternative embodiments, the cartridge may include a second container, rather than a single container connected to both ends of the porous member 104 via a first passage and a second passage. The container may be disposed at a first end of the porous member 104, and the container may be in fluid communication with the first end of the porous member 104 via the first passage. The second container may be disposed at a second end of the porous member 104, and the second container may be in fluid communication with the second end of the porous member 104 via the second passage.

[0258] In use, the box can be oriented so that the porous member is generally vertical, one of the container or the second container is generally located below the porous member, and the other of the container or the second container is generally located above the porous member. It will be understood that the liquid will be placed in the container at the bottom of the box.

[0259] Advantageously, for such an arrangement with two containers, the container containing the liquid at the bottom can be moved to the top by rotating the box 180° about an axis substantially perpendicular to the porous member, thereby allowing the liquid to flow through at least one porous member to the other container under the action of gravity. This arrangement provides a simple alternative mechanism by which liquid can be moved from one container to flow through at least one porous member.

[0260] Although specific embodiments of the present invention have been described above, it should be understood that the present invention may be implemented in a manner other than that described. The above description is intended to be illustrative rather than restrictive. Therefore, it will be apparent to those skilled in the art that modifications may be made to the described invention without departing from the scope of the claims set forth below.

Claims

1. A box for a scent dispenser, the box comprising: Containers, used to hold liquids; as well as at least one porous member; wherein the container is disposed at a first end of the at least one porous member, wherein the container is in fluid communication with the first end of the at least one porous member via a first passage, and wherein the container is in fluid communication with the second end of the at least one porous member via a second passage; and The first passage is provided with a valve mechanism, and the valve mechanism allows the first passage to be selectively opened or closed.

2. The box according to claim 1, wherein at least a portion of the container is made of a flexible material.

3. A box for a scent dispenser, the box comprising: Containers, used to hold liquids; as well as at least one porous member, wherein the or each porous member is an elongate hollow porous member, and wherein at least one end of the or each porous member is in fluid communication with the container; At least a portion of the container is formed from a flexible material.

4. A cartridge according to any one of the preceding claims, comprising: a rigid body having a recess defined therein; and A flexible membrane is sealed to the rigid body, wherein at least a portion of the container is formed by the recess and the flexible material.

5. A box according to any one of the preceding claims directly or indirectly dependent on claim 3, wherein the container is arranged at the first end of the at least one porous member, wherein the container is connected to the first end fluid of the at least one porous member via a first passage, and wherein the container is connected to the second end fluid of the at least one porous member via a second passage.

6. A cartridge according to any preceding claim when dependent directly or indirectly on claim 1 or on claim 5 when dependent on claim 3, wherein the first and second passages are at least partly formed by channels in the rigid body.

7. A cartridge according to claim 5 or claim 6 as not dependent on claim 1, wherein the first passage is provided with a valve mechanism which allows the first passage to be selectively opened or closed.

8. A cartridge according to any preceding claim when dependent directly or indirectly on claim 1 or claim 5, wherein the second passage is provided with a valve mechanism allowing the second passage to be selectively opened or closed.

9. A cartridge according to any preceding claim when dependent directly or indirectly upon claim 1 or claim 5, wherein one or more walls partially divide the container into a first portion and a second portion adjacent the second passageway.

10. The cartridge of claim 9, wherein the second portion of the container comprises: a generally linear passage having a generally uniform width, the first portion being connected to the second portion only at one end of the generally linear passage; or A generally annular channel having a generally uniform width, the first portion being connected to the second portion at only one circumferential location on the generally annular channel, and the second passageway being connected to a different location on the generally annular channel.

11. A cartridge according to any preceding claim, further comprising a liquid to be dispensed.

12. The cartridge of claim 11, further comprising: a sealing mechanism for preventing the liquid from flowing through the at least one porous member; as well as A seal breaking actuator is operable to break the sealing mechanism.

13. A cartridge according to claim 11 or 12, wherein the liquid is provided in a sealed capsule, and wherein, The cartridge further comprises a piercing member movable between a first storage position and a second actuated position wherein the piercing member extends into and pierces the sealed capsule, and optionally wherein the container defines a chamber for receiving the sealed capsule, the chamber having an opening to allow the piercing member to move into the chamber and allow the liquid to flow out of the chamber.

14. The cartridge of claim 12, further comprising a storage container, wherein the liquid is disposed in the storage container, and wherein the sealing mechanism comprises a valve operable to isolate the storage container from the at least one porous member.

15. The cartridge of claim 12, wherein the sealing mechanism comprises one or more valves operable to isolate the container from the at least one porous member.

16. A cartridge according to any preceding claim, comprising one or more valves arranged to allow isolation of the container from the at least one porous member.

17. A cartridge according to claim 15 or 16, further comprising a biasing member arranged to bias the valve member of the or each valve towards a closed configuration in which the container is isolated from the at least one porous member.

18. A cartridge according to claim 17 when dependent directly or indirectly on claim 4, further comprising a rigid plate connected to the rigid body to form a two-piece housing for the valve member and the biasing member.

19. A cartridge according to any one of claims 15 to 18, wherein the or each valve member defines an engagement feature which, in use, is actuatable by an actuator of a scent dispenser.

20. A cartridge according to any one of claims 15 to 19 when dependent directly or indirectly on claim 4, wherein a groove is defined in the rigid body for receiving an actuator of a scent dispenser acting on the valve member.

21. A cassette according to any preceding claim, further comprising a rack.

22. A cartridge according to any preceding claim, wherein the at least one porous member is formed from polypropylene.

23. An apparatus comprising: A support for supporting a cartridge according to any one of the preceding claims; as well as An actuation mechanism is operable to interact with a cartridge supported by the support to cause liquid to flow from the container through the at least one porous member.

24. The apparatus of claim 23, wherein the actuation mechanism comprises at least one actuator operable to squeeze a container of the cartridge supported by the support.

25. An apparatus according to claim 23 or 24, wherein the container of the cartridge is disposed beneath the at least one porous member when supported by the support.

26. A device according to any one of claims 23 to 25, wherein the actuating mechanism includes a valve actuator, which is operable to move between a first position and a second position, wherein the first passage of the box supported by the support member is opened and the first passage of the box supported by the support member is closed.

27. The device of claim 26, wherein the actuation mechanism comprises a pump actuator operable to squeeze a container of a cassette supported by the support when the valve actuator is disposed in the second position.

28. The device of any one of claims 23 to 27, wherein the actuation mechanism comprises at least one actuator operable to: engaging a box supported by the support to substantially isolate the second portion of the container from the first portion of the container; and while still engaged with the cartridge, thereby forcing liquid through a second passageway of the cartridge to a second end of the at least one porous member of the cartridge.

29. The device according to any one of claims 23 to 28 further includes a liquid release actuator, which is operable to engage with a seal-breaking actuator of a box supported by the support member and actuate the seal-breaking actuator to release liquid so that the liquid can flow through at least one porous member of the box.

30. The device of claim 29, wherein the liquid release actuator is operable to actuate a valve of a cartridge supported by the support, thereby fluidly connecting a container of the cartridge to at least one porous member of the cartridge.

31. The device according to claim 29 or claim 30 further includes a pinion gear which is operable to engage with a rack defined on the box to move the box into or out of the device, and wherein the liquid release actuator is operable to actuate the valve of the box due to such movement of the box, thereby connecting the container of the box to the fluid of at least one porous member of the box.

32. A device according to any one of claims 23 to 31, wherein the support defines a volume for receiving the box.

33. Apparatus according to any one of claims 23 to 32, further comprising a fan operable to provide an air flow adjacent the or each porous member of a cassette supported by the support.

34. The device according to any one of claims 23 to 33, further comprising a housing arranged to at least partially surround the support and the box supported by the support, wherein optionally the body of the housing defines one or more ventilation openings.

35. The device of any one of claims 23 to 34, wherein the actuation mechanism comprises: a first valve actuator; a second valve actuator; and a pump actuator.

36. A device according to any one of claims 23 to 35, wherein the device is operable to perform the following steps: (i) allowing liquid to flow from the container of the box supported by the housing through the porous member; and (ii) allowing liquid to flow from the porous member back to the container of the box.

37. Apparatus according to claim 36 when appended to claim 35, wherein step (i) comprises: (a) moving the second valve actuator to its second (open) position, thereby moving the second valve member of the cassette to the open position; as well as (b) moving the pump actuator to the second (squeezing) position, thereby squeezing the container of the cassette supported by the housing.

38. Apparatus according to claim 36 or 37 as appended to claim 35, wherein step (ii) comprises: The first valve actuator is moved to its second (open) position, thereby moving the first valve member of the cassette to the open position.

39. The device according to any one of claims 23 to 28, wherein the scent dispenser is operable to perform a method comprising the steps of: (a) opening a second passage of a box supported by the housing; (b) squeezing the container of the box to deform the film; (c) closing the second passage; (d) stopping squeezing the container; (e) opening the first passage of the box; and (f) closing the first passage.

40. Apparatus according to any preceding claim when dependent directly or indirectly on claim 35, wherein the first valve actuator, the second valve actuator and the pump actuator are each biased towards their first position by a biasing mechanism.

41. The apparatus according to any one of claims 23 to 40, further comprising: A camshaft including a plurality of cams; and a motor arranged to rotate the camshaft about its axis.

42. The device of claim 41, wherein each of the plurality of cams is arranged to engage with and move a different actuator of the device.

43. A system comprising: A box according to any one of claims 1 to 22; as well as Apparatus according to any one of claims 23 to 42.

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