EP1605980A1 - Top mounting for a container for a volatile liquid dispenser - Google Patents
Top mounting for a container for a volatile liquid dispenserInfo
- Publication number
- EP1605980A1 EP1605980A1 EP04721796A EP04721796A EP1605980A1 EP 1605980 A1 EP1605980 A1 EP 1605980A1 EP 04721796 A EP04721796 A EP 04721796A EP 04721796 A EP04721796 A EP 04721796A EP 1605980 A1 EP1605980 A1 EP 1605980A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- housing
- retention structure
- top portion
- volatile liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
- A61L9/12—Apparatus, e.g. holders, therefor
- A61L9/127—Apparatus, e.g. holders, therefor comprising a wick
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
- A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
- A61L9/12—Apparatus, e.g. holders, therefor
- A61L9/122—Apparatus, e.g. holders, therefor comprising a fan
Definitions
- the present invention relates to emanation systems for volatile liquids and, more particularly, to a container for a volatile liquid in a liquid dispensing device.
- the invention provides a dispenser adapted to disseminate volatile liquid into an atmosphere, comprising a container holding the volatile liquid, means for conveying the volatile liquid from the container for dispensing and a housing to which the container is attached, the container comprising: a body having a top portion; and a retention structure releasably mounted on the top portion of the body and adapted to releasably engage with a housing of a dispenser for a volatile liquid.
- the container thus has two components, a body and a separate retention structure, releasably mounted thereon.
- the body may be any convenient shape and be made from any convenient material, such as plastics, ceramics, metals and glass, plastics being particularly preferred for their cost, their moldability and their ability to be provided in attractive colors.
- the body provides a reservoir for the volatile liquid and it must therefore be able to withstand the liquid for whatever period necessary. The skilled person can easily select a suitable material for every case.
- the body has a top portion, which is adapted to receive a separate retention structure to be releasably mounted thereon.
- the retention structure itself may be any suitable structure that may be releasably attached to the body and that provides a releasable attachment to the housing.
- the structure may be made of any suitable material, but it is preferably of a plastics material, which allows for the molding of any necessary features thereon.
- the top portion may be a separate member attached to the body by any convenient means, or (preferably) it may be integral with the body, and it can be configured in any suitable manner to perform the function.
- One preferred example is a neck extending upwardly from the body and having suitable features that interact with corresponding features in the retention structure.
- the neck may comprise a male screw thread, which mates with a corresponding female screw thread in the retention structure, and a replacement can simply be screwed in and out.
- a further embodiment may be a snap-fitting; many such fittings are known to the art and the skilled person can readily adapt one to suit.
- the preferred means of attachment of retention structure to body is a fitting with at least one element in one of the body and the retention structure, which element engages with a corresponding engaging element in the other one of the body and the retention structure.
- a typical arrangement of this embodiment comprises at least one detent having the form of a downwardly-projecting resilient arm mounted on the retention structure, this detent comprising a projection that is adapted to engage with a corresponding edge or shoulder in the body, typically provided by a recess in the body, into which the projection fits.
- the recess may be conveniently located in this neck.
- a preferred arrangement comprises two diametrically-opposed resilient detents whose projections are adapted to fit into recesses in a neck.
- the resilient detents are slightly splayed away from the neck, and they are forced into the recesses by the action of pushing body plus retention structure into a housing that is so shaped that the projections are forced towards each other and into the recesses, in which they are held by the shape of the housing.
- the releasable attachment of the body bearing the retention structure to the housing may be achieved by any convenient means. It may be a screw fitting, but this has disadvantages if there is involved a wick of large evaporation surface, as the swept volume of such a wick on rotation would necessitate a housing of similar volume.
- the attachment is there fore preferably not involving rotation, such as a snap-fit. However, it is preferably a latching mechanism.
- latching members and latch receiving features there are two such latching members and latch receiving features, preferably positioned on opposing sides of the body.
- the at least one latching member is on the retention structure, with the latch receiving structure on the housing, but it can also be on the housing, the corresponding latch receiving feature being on the retention member.
- a preferred latching member is a resilient arm with a projection at the end, which projection engages with an edge or shoulder in the housing, similar in manner to that of the detent hereinabove described.
- the projections face away from each other, on opposite sides of the retention member.
- this arm releasable is to provide the protrusion with angled surfaces, such that the arm can be pushed in or pulled out, the angled surfaces allowing the sliding of the projection up and over the edge or shoulder, without compromising the ability of the arm to hold the body in place in the housing.
- this process of releasing is made easier by enabling lateral movement of the projections away from the edge or shoulder, for example, by making the body and/or retention member of a resilient material, such that light pressure leads to distortion and inward movement of the projections, away from the edge.
- the means for conveying the volatile liquid to the atmosphere is preferably a capillary member, most preferably a wick. It may be any kind of wick known to the art for the dissemination of volatile liquids into the atmosphere. It is preferably of the flat "paddle" type, consisting of a flat stem immersed on the liquid, leading to an evaporation surface of relatively large area, which is wider than the stem. Such wicks may be stamped out of a single piece of porous material. When they are to be used with a source of forced air flow, such as a fan, which may be mounted in the housing, they may optionally have perforations therein, better to permit air flow.
- a source of forced air flow such as a fan
- the dispenser of the present invention is effective at rapidly and efficiently disseminating volatile liquid, such as fragrance, into the atmosphere.
- the container hereinabove described is releasably mounted on the housing using a retention structure, such that, when the container is in position, liquid dissemination is optimal, for example, by positioning a wick in front of a fan for best airflow.
- the container is easily released from the housing and refilling is easily carried out.
- the dispenser is thus efficient and practical, without being wasteful.
- FIG. 1 is a perspective view showing insertion of the container of the present invention into a housing of a dispensing device;
- FIG. 2 is a perspective view of the container of FIG. 1 including an embodiment of the retention structure of the present invention;
- FIG. 3 is a perspective view of the embodiment of the retention structure of FIG. 2;
- FIG. 4 is an exploded view of the container and the retention structure of FIG. 2;
- FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 2 in which a portion of the housing is engaging the top portion of the retention structure;
- FIG.6 is a perspective view of an alternative embodiment of the retention structure of FIG. 2;
- FIGS. 7 and 8 are schematic views of the retention structure engaging the housing; and FIG. 9 is the cross-sectional view of FIG. 5 in which a portion of the housing is engaging a lower portion of the retention structure of FIG. 5; and
- FIG. 10 is a partial cut away view of the housing as seen in FIG. 1.
- container 20 of the present invention is to be releasably secured to a housing 100 of a unit for dispensing a volatile liquid, such as a fragrance compound.
- the unit is designed to disseminate a volatile liquid, such as a fragrance compound, into a room.
- the fragrance compound is disseminated via a forced air stream flowing around a capillary member 74 at room ambient temperature.
- Container 20 serves as a reservoir for the volatile liquid.
- a capillary member 74 is positioned in an opening of container 20. A portion of capillary member 74 extends into an interior of container 20 to contact the volatile liquid. Another portion of capillary member 74 extends outside container 20.
- container 20 When container 20 is secured in housing 100, a portion of container 20 and the portion of capillary member 74 extending outside the container reside in an interior of housing 100. Under these circumstances, the volatile liquid migrates along capillary member 74 from the reservoir to the exterior of container 100 where it is evaporated from an exterior surface of capillary member 74 by forced airflow generated by a motorized fan mounted in housing 100. In this embodiment, container 20 is secured in a position on to housing 100 such that the portion of capillary member 74 in the interior of housing 100 resides in the forced air stream generated by the fan.
- container 20 is designed to be releasably mounted, via a retention structure 26, in an opening 200 of housing 100 of the fragrance dispensing unit.
- container 20 includes a body 22 having a top portion 24.
- a neck 42 extends from top portion 24 to define an opening 44 into an interior of container 20.
- the retention structure, generally designated 26, is mounted on top portion 24 of container 20.
- a first embodiment of retention structure 26 includes one or more latching members 28 which engage complementary latch-receiving features, such as edges or shoulders 68, on respective opposing sides of housing opening 200, as seen in FIG. 10.
- Each latching member 28 has an entry portion 32 and a hook portion 34. Both entry portion 32 and hook portion 34 of each latching member 28 have surfaces generally inclined with respect to an axis of insertion "A" of the container into housing 100, as seen in FIG. 7, for more easily establishing sliding contact with the complementary surfaces of the housing.
- latching members 28 are formed on a bracket 40 fabricated as a component separate from container top portion 24.
- retention structure 26 may include a latch-receiving member (not shown) for positively engaging a complementary projection, such as a tab or a latch, formed on housing 100.
- latching members 28 and/or the portions of housing 100 that engage the latching members may resiliently deflect during mounting of container 20 onto housing 100.
- retention structure 26 may also include one or more detent members 38 incorporated into bracket 40 to form an enclosure that encloses container neck 42 therein.
- detent members 38 are cantilevered, having a base end 46 and a free end 48.
- Detent members 38 are also formed so as to project slightly outward, in a direction away from neck 42 as shown.
- a projection 50 is formed in free end 48 of each detent member 38 and a recess 52 is formed in a wall of neck 42 opposite each of projections 50 for receiving a corresponding one of projections therein, in a manner to be described later.
- the retention structure of the present invention may be formed on a component separate from top portion 24.
- the separate component was a single piece in the form of a bracket 40.
- Bracket 40 may be fabricated using a method, such as molding or stamping and forming, which enables elements of the retention structure to be formed integral with the bracket.
- an opening 54 (FIG. 3) may be formed in bracket 40 for receiving therethrough a portion of capillary member 74 (FIG. 1) extending into container 20.
- elements of the retention structure may be formed on multiple separate components 58, each component 58 being individually mountable to housing top portion 24.
- a latching member 28 as previously described may be formed on each of separate pieces 58. Each separate piece 58 may then be secured to container top portion 24.
- Retention structure 26 may be fabricated using a method, such as molding or stamping and forming, which enables elements of the retention structure to be formed integral with top portion 24.
- top portion 24 may be a molded plastic component in which elements of the retention structure (e.g., latches, detent members, etc.) may be integrally molded therein.
- top portion 24 may be a sheet metal component on which elements of the retention are formed through cutting and bending.
- a bracket 40 as described above may be mounted to a supporting structure 60 formed in the top portion of the container. Supporting structure 60 aids in positioning and securing bracket 40 on container top portion 24.
- supporting structure 60 includes neck 42 and a pair of tabs 62 formed in container top portion 24.
- the structure of bracket 40 defines an enclosure for receiving neck 42 therein when bracket 40 is mounted on container top portion 24.
- a pair of slots (not shown) is also formed in bracket 40 for receiving tabs 62 therein during mounting of bracket 40 to top portion 24.
- separate component or components incorporating the retention structure may be permanently secured to container top portion 24 using one of a variety of known methods, such as adhesive attachment, ultrasonic welding, an interference fit with a complementary feature formed on the container top portion, etc.
- latching member entry portions 32 engage complementary shoulders 68 on opposing sides of housing opening 200, causing latching members 28 to deflect inwards until latching member entry portions 32 pass housing shoulders 68, whereupon latching members 28 snap back to a substantially undeflected state in which hook portions 34 are engaged with housing shoulders 68.
- This positive engagement between latching members 28 and opposing sides of housing opening 200 aids in securing container 20 to housing 100.
- each detent member 38 establishes sliding contact with a respective opposing wall 70 of housing opening 200.
- This sliding contact causes detent members 38 to resiliently deflect inwards, in a direction toward neck 42 and provides resistance to insertion of detent member 38 into housing 100.
- projections 50 on detent members 38 enter recesses 52.
- detent member projections 50 reside within recesses 52. In this position, it may be seen that contact forces between each detent member 38 and a respective housing wall 70 aid in securing container 20 to housing 100.
- container 20 when it is desired to detach container 20 from housing 100, container 20 may be grasped along sides 72 by a user to pull container 20 in the direction indicated by arrow "B". Inclined surfaces of hook portions 34 then engage complementary shoulders 68 on opposing sides of housing opening 200, causing latching members 28 (FIG. 7) to deflect inwards until latching member hook portions 34 pass housing shoulders 68, whereupon the inclined surfaces of entry portions 32 engage housing shoulders 68 in sliding contact during withdrawal of the retention structure from housing 100.
- latching members 28 FIG. 7
- latching members 28 act to inhibit withdrawal of the retention structure (and the container attached thereto) from housing 100.
- FIGs. 5 and 9 as each detent member 38 engages in sliding contact with a respective housing wall 70 during withdrawal of the retention structure from the housing, engagement between detent projections 50 and recesses 52 produces a gripping effect of bracket 40 on neck 42.
- this gripping effect of bracket 40 on neck 42 helps maintain securement of bracket 40 to container 20, thereby helping to prevent bracket 40 from separating from container 20.
- housing wall 70 engages detent member 38 closer to base end 46, allowing detent member 38 to return its undeflected state and causing projection 50 to withdraw from recess 52.
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Abstract
A container for a volatile liquid in a liquid dispensing device comprises a body and a retention structure. The retention structure is mounted to a top portion of the container. A capillary member may extend from inside the container to an exterior of the container. In certain embodiments, the volatile liquid migrates along the capillary member to the exterior of the container where it is evaporated from the surface of the capillary member, optionally by forced airflow generated by a motorized fan mounted in the housing.
Description
TOP MOUNTING FOR A CONTAINER FOR A VOLATILE LIQUID DISPENSER
The present invention relates to emanation systems for volatile liquids and, more particularly, to a container for a volatile liquid in a liquid dispensing device.
Devices for the dissemination of volatile liquids, such as fragrances, insecticides, medicaments, mildewcides and fungicides, into an atmosphere from a container via a porous wick are well known and widely used. Many of these are basically single-use devices, to be discarded when used. This is wasteful and expensive, especially when it is desired to use forced air flow for better dissemination, for example, by means of a fan or blower, and this is built into the device. There thus exists in the art a need for a cheap, efficient device that is easily and conveniently refillable.
The invention provides a dispenser adapted to disseminate volatile liquid into an atmosphere, comprising a container holding the volatile liquid, means for conveying the volatile liquid from the container for dispensing and a housing to which the container is attached, the container comprising: a body having a top portion; and a retention structure releasably mounted on the top portion of the body and adapted to releasably engage with a housing of a dispenser for a volatile liquid. The container thus has two components, a body and a separate retention structure, releasably mounted thereon.
The body may be any convenient shape and be made from any convenient material, such as plastics, ceramics, metals and glass, plastics being particularly preferred for their cost, their moldability and their ability to be provided in attractive colors. The body provides a reservoir for the volatile liquid and it must therefore be able to withstand the liquid for whatever period necessary. The skilled person can easily select a suitable material for every case.
The body has a top portion, which is adapted to receive a separate retention structure to be releasably mounted thereon. The retention structure itself may be any suitable structure that may be releasably attached to the body and that provides a releasable attachment to the housing. The structure may be made of any suitable material, but it is preferably of a plastics material, which allows for the molding of any necessary features thereon.
The top portion may be a separate member attached to the body by any convenient means, or (preferably) it may be integral with the body, and it can be configured in any suitable manner to perform the function. One preferred example is a neck extending upwardly from the body and having suitable features that interact with corresponding features in the retention structure. For example, the neck may comprise a male screw thread, which mates with a corresponding female screw thread in the retention structure, and a replacement can simply be screwed in and out. A further embodiment may be a snap-fitting; many such fittings are known to the art and the skilled person can readily adapt one to suit. . The preferred means of attachment of retention structure to body is a fitting with at least one element in one of the body and the retention structure, which element engages with a corresponding engaging element in the other one of the body and the retention structure. A typical arrangement of this embodiment comprises at least one detent having the form of a downwardly-projecting resilient arm mounted on the retention structure, this detent comprising a projection that is adapted to engage with a corresponding edge or shoulder in the body, typically provided by a recess in the body, into which the projection fits. In the case where the body comprises an upwardly-projecting neck, the recess may be conveniently located in this neck. A preferred arrangement comprises two diametrically-opposed resilient detents whose projections are adapted to fit into recesses in a neck. In a further preferred embodiment, the resilient detents are slightly splayed away from the neck, and they are forced into the recesses by the action of pushing body plus retention structure into a housing that is so shaped that the projections are forced towards each other and into the recesses, in which they are held by the shape of the housing.
The skilled person will readily be able to conceive of many other ways of achieving this releasable arrangement, which fall within the scope of this invention. The releasable attachment of the body bearing the retention structure to the housing may be achieved by any convenient means. It may be a screw fitting, but this has disadvantages if there is involved a wick of large evaporation surface, as the swept volume of such a wick on rotation would necessitate a housing of similar volume. The attachment is there fore preferably not involving rotation, such as a snap-fit. However, it is preferably a latching mechanism. In a typical arrangement, there is provided, on one of the retention structure and the housing, one each of at least one latching member adapted to engage at
least one complementary latch-receiving feature on the other of the retention structure and the housing.
Preferably there are two such latching members and latch receiving features, preferably positioned on opposing sides of the body. Preferably the at least one latching member is on the retention structure, with the latch receiving structure on the housing, but it can also be on the housing, the corresponding latch receiving feature being on the retention member.
The latching member and the corresponding latch receiving feature may be any such features known to the art that allow the latching and release of a body with a housing, and the skilled person will readily be able to comprehend many different possibilities that lie within the scope of this invention. A preferred latching member is a resilient arm with a projection at the end, which projection engages with an edge or shoulder in the housing, similar in manner to that of the detent hereinabove described. Preferably at least two such arms and edges/shoulders should be provided. Preferably the projections face away from each other, on opposite sides of the retention member.
One way of making this arm releasable is to provide the protrusion with angled surfaces, such that the arm can be pushed in or pulled out, the angled surfaces allowing the sliding of the projection up and over the edge or shoulder, without compromising the ability of the arm to hold the body in place in the housing. Preferably this process of releasing is made easier by enabling lateral movement of the projections away from the edge or shoulder, for example, by making the body and/or retention member of a resilient material, such that light pressure leads to distortion and inward movement of the projections, away from the edge.
Again, there are many other possibilities for releasably holding in place a body and retention member, which lie within the scope of this invention, and the skilled person will readily be able to envisage these.
The means for conveying the volatile liquid to the atmosphere is preferably a capillary member, most preferably a wick. It may be any kind of wick known to the art for the dissemination of volatile liquids into the atmosphere. It is preferably of the flat "paddle" type, consisting of a flat stem immersed on the liquid, leading to an evaporation surface of relatively large area, which is wider than the stem. Such wicks may be stamped out of a single piece of porous material. When they are to be used with a source of forced air flow,
such as a fan, which may be mounted in the housing, they may optionally have perforations therein, better to permit air flow.
The dispenser of the present invention is effective at rapidly and efficiently disseminating volatile liquid, such as fragrance, into the atmosphere. The container hereinabove described is releasably mounted on the housing using a retention structure, such that, when the container is in position, liquid dissemination is optimal, for example, by positioning a wick in front of a fan for best airflow. The container is easily released from the housing and refilling is easily carried out. The dispenser is thus efficient and practical, without being wasteful. It should be understood that the preceding is merely a detailed description of various embodiments of this invention and that numerous changes to these disclosed embodiments can be made in accordance with the disclosure herein without departing from the spirit or scope of the invention. The preceding description, therefore, is not meant to limit the scope of the invention. Rather, the scope of the invention is to be determined only by the appended claims and their equivalents.
The invention is now further described with reference to the following drawings, which depict preferred embodiments.
FIG. 1 is a perspective view showing insertion of the container of the present invention into a housing of a dispensing device; FIG. 2 is a perspective view of the container of FIG. 1 including an embodiment of the retention structure of the present invention;
FIG. 3 is a perspective view of the embodiment of the retention structure of FIG. 2;
FIG. 4 is an exploded view of the container and the retention structure of FIG. 2;
FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 2 in which a portion of the housing is engaging the top portion of the retention structure;
FIG.6 is a perspective view of an alternative embodiment of the retention structure of FIG. 2;
FIGS. 7 and 8 are schematic views of the retention structure engaging the housing; and FIG. 9 is the cross-sectional view of FIG. 5 in which a portion of the housing is engaging a lower portion of the retention structure of FIG. 5; and
FIG. 10 is a partial cut away view of the housing as seen in FIG. 1.
Referring to FIG.l, container 20 of the present invention is to be releasably secured to a housing 100 of a unit for dispensing a volatile liquid, such as a fragrance compound. The unit is designed to disseminate a volatile liquid, such as a fragrance compound, into a room. The fragrance compound is disseminated via a forced air stream flowing around a capillary member 74 at room ambient temperature. Container 20 serves as a reservoir for the volatile liquid. A capillary member 74 is positioned in an opening of container 20. A portion of capillary member 74 extends into an interior of container 20 to contact the volatile liquid. Another portion of capillary member 74 extends outside container 20. When container 20 is secured in housing 100, a portion of container 20 and the portion of capillary member 74 extending outside the container reside in an interior of housing 100. Under these circumstances, the volatile liquid migrates along capillary member 74 from the reservoir to the exterior of container 100 where it is evaporated from an exterior surface of capillary member 74 by forced airflow generated by a motorized fan mounted in housing 100. In this embodiment, container 20 is secured in a position on to housing 100 such that the portion of capillary member 74 in the interior of housing 100 resides in the forced air stream generated by the fan.
Referring to FIGS.l, 2 and 10, container 20 is designed to be releasably mounted, via a retention structure 26, in an opening 200 of housing 100 of the fragrance dispensing unit. In these embodiments, container 20 includes a body 22 having a top portion 24. A neck 42 extends from top portion 24 to define an opening 44 into an interior of container 20. The retention structure, generally designated 26, is mounted on top portion 24 of container 20.
Various other embodiments of the retention structure will now be described. As stated above, retention structure 26 releasably engages a housing of a volatile dispenser to secure the container 20 to housing 100. Referring to FIGS. 3, 4 and 7, a first embodiment of retention structure 26 includes one or more latching members 28 which engage complementary latch-receiving features, such as edges or shoulders 68, on respective opposing sides of housing opening 200, as seen in FIG. 10. Each latching member 28 has an entry portion 32 and a hook portion 34. Both entry portion 32 and hook portion 34 of each latching member 28 have surfaces generally inclined with respect to an axis of insertion "A" of the container into housing 100, as seen in FIG. 7, for more easily establishing sliding contact with the complementary surfaces of the housing. As seen in FIG. 3 in this
embodiment, latching members 28 are formed on a bracket 40 fabricated as a component separate from container top portion 24.
Alternatives to latching members 28 may be incorporated into retention structure 26. For example, retention structure 26 may include a latch-receiving member (not shown) for positively engaging a complementary projection, such as a tab or a latch, formed on housing 100. In the embodiments of the retention structure described above, latching members 28 and/or the portions of housing 100 that engage the latching members may resiliently deflect during mounting of container 20 onto housing 100.
Referring to FIGS. 3, 4 and 5, retention structure 26 may also include one or more detent members 38 incorporated into bracket 40 to form an enclosure that encloses container neck 42 therein. In one embodiment, detent members 38 are cantilevered, having a base end 46 and a free end 48. Detent members 38 are also formed so as to project slightly outward, in a direction away from neck 42 as shown. A projection 50 is formed in free end 48 of each detent member 38 and a recess 52 is formed in a wall of neck 42 opposite each of projections 50 for receiving a corresponding one of projections therein, in a manner to be described later.
As stated above, the retention structure of the present invention may be formed on a component separate from top portion 24. In the previously described first embodiment, the separate component was a single piece in the form of a bracket 40. Bracket 40 may be fabricated using a method, such as molding or stamping and forming, which enables elements of the retention structure to be formed integral with the bracket. Depending on where bracket 40 is to be positioned on housing top portion 24, an opening 54 (FIG. 3) may be formed in bracket 40 for receiving therethrough a portion of capillary member 74 (FIG. 1) extending into container 20. Referring to FIG. 6, in another embodiment, elements of the retention structure may be formed on multiple separate components 58, each component 58 being individually mountable to housing top portion 24. For example, a latching member 28 as previously described may be formed on each of separate pieces 58. Each separate piece 58 may then be secured to container top portion 24.
Retention structure 26 may be fabricated using a method, such as molding or stamping and forming, which enables elements of the retention structure to be formed integral with top portion 24. For example, top portion 24 may be a molded plastic component in which elements of the retention structure (e.g., latches, detent members, etc.)
may be integrally molded therein. Alternatively, top portion 24 may be a sheet metal component on which elements of the retention are formed through cutting and bending.
Separate component or components including the retention structure may be detachably mounted to top portion 24 using one of a variety of known methods, such as a latching system or a snap fit. As an example, referring to FIG. 4, a bracket 40 as described above may be mounted to a supporting structure 60 formed in the top portion of the container. Supporting structure 60 aids in positioning and securing bracket 40 on container top portion 24. In this embodiment, supporting structure 60 includes neck 42 and a pair of tabs 62 formed in container top portion 24. The structure of bracket 40 defines an enclosure for receiving neck 42 therein when bracket 40 is mounted on container top portion 24. A pair of slots (not shown) is also formed in bracket 40 for receiving tabs 62 therein during mounting of bracket 40 to top portion 24.
In alternative embodiments, separate component or components incorporating the retention structure may be permanently secured to container top portion 24 using one of a variety of known methods, such as adhesive attachment, ultrasonic welding, an interference fit with a complementary feature formed on the container top portion, etc.
Releasable mounting of container 20 to housing 100 will now be discussed. Referring to FIGS. 7, 8 and 10, when it is desired to mount container 20 onto housing 100, retention structure 26 is received in housing opening 200 wherein elements of the retention structure engage complementary features located on housing 100 to secure container 20 to the housing 100. Specifically, in the first embodiment of the retention structure described above, latching member entry portions 32 engage complementary shoulders 68 on opposing sides of housing opening 200, causing latching members 28 to deflect inwards until latching member entry portions 32 pass housing shoulders 68, whereupon latching members 28 snap back to a substantially undeflected state in which hook portions 34 are engaged with housing shoulders 68. This positive engagement between latching members 28 and opposing sides of housing opening 200 aids in securing container 20 to housing 100.
Referring to FIGS. 5 and 9, during insertion of the retention structure into housing opening 200, each detent member 38 establishes sliding contact with a respective opposing wall 70 of housing opening 200. This sliding contact causes detent members 38 to resiliently deflect inwards, in a direction toward neck 42 and provides resistance to insertion of detent member 38 into housing 100. As retention structure 26 is inserted further into housing 100
causing detent members 38 to deflect further inward, projections 50 on detent members 38 enter recesses 52. When retention structure 26 is fully inserted into opening 200, detent member projections 50 reside within recesses 52. In this position, it may be seen that contact forces between each detent member 38 and a respective housing wall 70 aid in securing container 20 to housing 100.
Referring now to FIG. 8, when it is desired to detach container 20 from housing 100, container 20 may be grasped along sides 72 by a user to pull container 20 in the direction indicated by arrow "B". Inclined surfaces of hook portions 34 then engage complementary shoulders 68 on opposing sides of housing opening 200, causing latching members 28 (FIG. 7) to deflect inwards until latching member hook portions 34 pass housing shoulders 68, whereupon the inclined surfaces of entry portions 32 engage housing shoulders 68 in sliding contact during withdrawal of the retention structure from housing 100.
It may be seen that, by the initial sliding engagement between housing shoulders 68 and the inclined surfaces of hook portions 34, and by the subsequent sliding engagement between housing shoulders 68 and the inclined surfaces of entry portions 32, latching members 28 act to inhibit withdrawal of the retention structure (and the container attached thereto) from housing 100. Referring to Figs. 5 and 9, as each detent member 38 engages in sliding contact with a respective housing wall 70 during withdrawal of the retention structure from the housing, engagement between detent projections 50 and recesses 52 produces a gripping effect of bracket 40 on neck 42. During the initial movement of container 20 in direction "B" away from housing 100, this gripping effect of bracket 40 on neck 42 helps maintain securement of bracket 40 to container 20, thereby helping to prevent bracket 40 from separating from container 20. As retention structure 26 is withdrawn further from housing 100, housing wall 70 engages detent member 38 closer to base end 46, allowing detent member 38 to return its undeflected state and causing projection 50 to withdraw from recess 52.
Claims
1. A dispenser adapted to disseminate volatile liquid into an atmosphere, comprising a container holding the volatile liquid, means for conveying the volatile i liquid from the container for dispensing into the atmosphere and a housing to which the container is attached, the container comprising: a body having a top portion; and a retention structure releasably mounted on the top portion of the container and adapted to releasably engage with a housing of a dispenser for a volatile liquid.
2. A dispenser according to claim 1 wherein the retention structure includes at least one latching member adapted to engage at least one complementary latch- receiving feature associated with the housing.
3. A dispenser according to claim 2 wherein there are two latching members positioned on opposing sides of the body.
4. A dispenser according to claim 1 wherein the retention structure comprises a latch receiving structure adapted to engage a complementary latching member formed on the housing.
5. A dispenser according to claim 1 wherein the retention structure includes a detent member adapted to engage a surface of the housing.
6. A dispenser according to claim 5 including a projection extending from the detent member adapted to engage a complementary recess in the container with engagement of the detent member with the surface of the housing.
7. A dispenser according to claim 6 further comprising a neck projecting from the top portion and wherein the recess is formed in a wall of the neck.
8. A dispenser according to claim 1 wherein a neck projects from the top portion of the container and defines an opening for receiving a capillary member therethrough, the retention structure includes an opening for receiving the capillary member therethrough, and is mountable on the top portion of the body of the i container such that the opening in the retention structure is in alignment with the opening defined by the neck.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US394913 | 2003-03-21 | ||
US10/394,913 US20040195245A1 (en) | 2003-03-21 | 2003-03-21 | Top mounting for a container for a volatile liquid dispenser |
PCT/CH2004/000169 WO2004082727A1 (en) | 2003-03-21 | 2004-03-19 | Top mounting for a container for a volatile liquid dispenser |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1605980A1 true EP1605980A1 (en) | 2005-12-21 |
Family
ID=33029711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04721796A Withdrawn EP1605980A1 (en) | 2003-03-21 | 2004-03-19 | Top mounting for a container for a volatile liquid dispenser |
Country Status (4)
Country | Link |
---|---|
US (1) | US20040195245A1 (en) |
EP (1) | EP1605980A1 (en) |
JP (1) | JP2006524610A (en) |
WO (1) | WO2004082727A1 (en) |
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- 2004-03-19 EP EP04721796A patent/EP1605980A1/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
JP2006524610A (en) | 2006-11-02 |
US20040195245A1 (en) | 2004-10-07 |
WO2004082727A1 (en) | 2004-09-30 |
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