EP1737333B1 - Dispenser - Google Patents
Dispenser Download PDFInfo
- Publication number
- EP1737333B1 EP1737333B1 EP05741955A EP05741955A EP1737333B1 EP 1737333 B1 EP1737333 B1 EP 1737333B1 EP 05741955 A EP05741955 A EP 05741955A EP 05741955 A EP05741955 A EP 05741955A EP 1737333 B1 EP1737333 B1 EP 1737333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispenser
- blister
- fragrance
- apertures
- aperture
- 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.)
- Not-in-force
Links
- 239000003205 fragrance Substances 0.000 claims description 58
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004040 coloring Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 5
- 238000004851 dishwashing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000004580 weight loss Effects 0.000 description 2
- 241000207199 Citrus Species 0.000 description 1
- 206010011906 Death Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000013042 solid detergent Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
- A47L15/4481—Deodorants, perfumes or odor removals
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
Definitions
- the present invention relates to a dispenser for an automatic dishwashing machine, particularly for use in the dispense of a fragrance.
- Automatic dishwashing is a well recognised field. It provides convenience to a consumer in comparison to manual dishwashing.
- malodour One problem associated with the use of automatic dishwashers is that of malodour. This is typically caused by the presence of a residual amount of wash liquor retained in a part of the machine after use. Microbiological action on this residual liquor can cause a generation of malodour, which although harmless, is unwelcome.
- the malodour is noticeable when the machine is left open between wash cycles and especially at the end of a wash cycle.
- the emanators used generally comprise a cage for attachment to a part of the dishwasher and a source of fragrance (such as a blister) contained therein.
- FR 2 585 248 describes such a blister which is placed in the dishwashing rack.
- the first problem is that of the rate of release of the fragrance. Normally the fragrance release follows a reverse exponential curve: initially the release of fragrance is strong, with the rate of release diminishing with time. Indeed in the early stages of use the large amount of fragrance released, whilst addressing the malodour issue, can reach an equally unpleasant level. Conversely towards the end of the life cycle of the fragrance emanator the release of fragrance is often so weak that the malodour issue is not effectively addressed.
- a second problem is the nature of the fragrance released.
- Fragrances whether a natural or man-made, comprise a complex admixture of components, wherein each component provides a different element to the overall fragrance.
- each component provides a different element to the overall fragrance.
- volatility of the components varies having regard to one another.
- emanators which are normally unsophisticated devices (due to cost consideration)
- a dispenser for an automatic dishwasher comprising a body having an aperture for release of an active component, the extent of opening of the aperture being controllable, and wherein the active is contained in a blister disposed in the body.
- the active component is a fragrance.
- the fragrance is generally used to address malodour issues prevalent in automatic dishwashers.
- the dispenser of the present invention has been found to have excellent properties. These properties are particularly pertinent when the release profile of the most preferred active component, fragrance, is considered.
- the dispenser has been found to be able to release the fragrance in a linear fashion both over and between a large number of automatic dishwasher wash cycles (typically between 50 and 100 wash cycles. This is in contrast to previous dispensers. Furthermore with the dispenser of the invention linear release has been observed at varying opening extents of the aperture. Thus not only is the dispenser able to dispense a fragrance at a linear rate but also the rate of the release has been found to be adjustable, without having an adverse effect on the linearity of the release.
- the dispenser of the present invention has been found to overcome the problem of differential release of different components of the fragrances. That is to say, throughout the working life of the dispenser of the present invention the fragrance released is virtually identical to that of the 'fresh' fragrance. Without wishing to be bound by theory it is postulated that this effect is achieved by the creation of a zone of saturated fragrance in the headspace of the dispenser.
- the extent of opening of the aperture is controlled by a gate mounted on the body.
- the gate is mounted such that it may be moved relative to the body to affect the opening extent of the aperture.
- the gate is mounted relative to the body such that rotation of the gate relative to the body varies the opening extent of the aperture.
- the gate preferably comprises an apertured member. In this way when the aperture of the gate is at least partially aligned with the body aperture dispense of the active component may occur.
- the degree of alignment may preferably be varied to affect a variable rate of release.
- the dispenser may have an indication system which displays the degree of alignment between the gate and the body (and hence the expected rate of release) to the user.
- the aperture on the body may be split into a series of apertures with a bespoke aperture for each level of release.
- the aperture on the body may be split into two separate apertures; one large aperture for a high rate of release (with the aperture on the gate being the same size as that of the body) and a smaller aperture for a lower rate of release.
- this arrangement of apertures may be reversed: the series of apertures may be on the gate rather than on the body.
- the body has a plurality of apertures to allow release of the active component (and also for inflow/drainage of wash liquor).
- the gate also has a plurality of apertures (most preferably one gate aperture per one body aperture).
- the aperture is subdivided into a series of apertures there may be a plurality of these series of apertures.
- the apertures are arranged in a regular pattern on a side wall of the body.
- the body has a means to permit attachment to the inside of a dishwasher.
- the attachment means is in the form of a hook or a clip.
- the body has a window so that the user is able to see the blister retained within the body. In this way the user is able to assess the contents of the blister and hence can obtain an indication of the likely remaining lifetime of the blister.
- the window is most preferably in the form of an aperture in the body. Preferably the window is sealed by being filled with the blister.
- the reservoir body comprises a substantially planar base.
- the base is permeable to allow the contents of the blister to emanate in use.
- the reservoir projects from a surface of the base.
- the reservoir is stepped having a lower most and an upper most portion.
- the upper most portion of the reservoir body extends into the window aperture of the body.
- the lower most portion of the reservoir body extends beneath and behind a lower edge of the window aperture of the body.
- the body is opaque, only the portion of the reservoir body which extends into the window aperture is visible when the blister is mounted in the body.
- the blister has a hidden portion, which may, when appropriate conceal a residue of a component which is to be released from the emanator. In this way the presence of any residue (particularly from a fragrance composition) does not detrimentally effect the impression of the user as to whether the blister needs to be replaced.
- the volume of the portion of the reservoir body which is hidden may be varied to suit the expected amount of residue remaining in the blister.
- the volume of the reservoir body which is hidden comprises around 15% of the volume of the entire reservoir. (It has been found that typical fragrance compositions leave a residue of up to 15% by volume after the active components thereof have been allowed to/cause to emanate. Thus a large portion of the reservoir body (around 85% by volume) may be observed by user. This gives excellent indication of the use of the blister contents and end-of-life indication.
- the blister more particularly the skin of the blister, is transparent so as to allow the user to view the contents thereof.
- the blister contains a fragrance composition.
- the fragrance composition contains a dye and/or a colouring agent.
- the dye/colouring agent may give an indication of the nature of the fragrance for added consumer recognition/appeal. For example an 'apple' fragrance may have a green colour and a 'citrus' fragrance a yellow/orange colour.
- the dispenser 1 of the present invention comprises a body 2, a blister 3 and a gate 4.
- the body 2 comprises a front section 5 and a rear section 6. Both the front section 5 and the rear section 6 include a largely circular portion 7 and an extended portion 8. The front section 5 and the rear section 6 adjoin by virtue of a 'snap fit' arrangement.
- the extended section 8 of the front section 5 includes a hook 10 for mounting the body within an automatic dishwasher (not shown).
- the interior side of the front section 5 has a lip 11 arranged around the window aperture 9. The lip 11 provides support for the blister 3 to be mounted within the body 2 adjacent the window aperture a 9 such that the contents of the blister 3 are visible form the exterior of the body 2.
- the circular portion 7 of the rear section 6 is stepped. This provides a volume within the body 2 for retention of the blister 3.
- the circular portion 7 includes a number of clusters of apertures 12 arranged with regular spacing. Each cluster 12 comprises three individual apertures; a,b,c, arranged in an inverted ⁇ L' configuration.
- the extended section 8 of the rear section 6 includes a series of markings; ⁇ HI', 'MED' and ⁇ LO'. The significance of these markings will become clear with reference to the gate 4.
- the gate 4 includes a largely circular portion 7 and a limb extension 13.
- the circular portion 7 of the gate 4 is stepped in the same way as the rear section 6 of the body 2.
- the circular portion 7 includes a number of clusters of apertures 14 arranged with regular spacing.
- Each cluster 14 comprises two individual apertures; I,II, arranged in an 'I' configuration.
- the limb extension 13 of the gate 4 extends beyond the markings on the extended section 8 of the rear portion 6.
- the limb extension 13 includes a window 15. The markings are intended to be visible through the window 15 of the limb extension 13.
- the gate 4 is mounted adjacent the rear section 6 so that the gate 4 may be rotated relative to the rear section 6. In this way the clusters of apertures 14 on the gate 4 may be arranged relative to the cluster of apertures 12 on the rear section 6.
- the window 15 of the limb extension 13 of the gate 4 is aligned such that the marking ⁇ LO' is visible therethrough. In this orientation none of the apertures I, II on the gate 4 are aligned with the apertures a,b,c on the rear section 6.
- the window 15 of the limb extension 13 of the gate 4 is aligned such that the marking 'MED' is visible therethrough.
- the apertures I on the gate 4 are aligned with the apertures a on the rear section 6.
- the window 15 of the limb extension 13 of the gate 4 is aligned such that the marking 'HI' is visible therethrough.
- the apertures I and II on the gate 4 are aligned with the apertures b and c on the rear portion 6.
- the body 2 comprises a front section 5 and a rear section 6.
- the front section 5 and the rear section 6 adjoin by virtue of a 'snap fit' arrangement. Both the front section 5 and the rear section 6 are dished to provide a volume within the body 2 for retention of the blister 3.
- the rear section 6 includes a hook 10 for mounting the body within an automatic dishwasher.
- the periphery of the front section 5 includes a number of clusters of apertures 12 arranged with regular spacing.
- Each cluster 12 comprises four individual apertures; a,b,c,d, arranged in a row.
- the periphery of the rear section 6 is cutaway in sections to create four projections 16.
- the front section 5 is mounted adjacent the rear section 6 so that the front section 5 may be rotated relative to the rear section 6. In this way the clusters of apertures 12 on the front section 5 may be arranged relative to the projections 16.
- the front section 5 is aligned such that all of the apertures a,b,c,d are adjacent the projections 16 on the rear section 6. Thus none of the apertures a,b,c,d is open.
- the front section 5 is aligned such that a decreasing number of the apertures a,b,c,d is adjacent the projections 16 on the rear section 6.
- progressively the apertures a,b,c,d are opened with, finally in the fifth arrangement, all of the apertures a,b,c,d being open.
- FIGS 8 to 11 show the preferred embodiment of the blister 3 for use with the dispenser 1.
- the blister 3 comprises a base 17 in the form of an oval strip.
- the oval base 17 comprises a permeable skin for release of the fragrance.
- the base 17 is provided with two-stepped platforms 18 and 19 which project on the front side of the base 17.
- the platform 18 has a similar shape to the base 17, namely it is oval, yet is smaller than the base 17, thus leaving a non-platformed perimeter 20 therearound.
- the stepped platform 19 has a circular surface 21.
- the surface 21 is inclined at an angle about an axis therethrough, the said axis being arranged parallel to the equatorial axis of the blister B-B.
- the stepped platform 19 has a depth which varies along longitudinal axis A-A.
- the surface 21 and most preferably the entire blister 3 is transparent.
- the blister 3 is preferably supported in the body 2 by the lip 11 such that at least a portion of the surface 21 of the stepped platform 19 is visible through the window aperture 9. This allows the user to visually determine the amount of fragrance contained within the blister 3.
- the platform 18 extends beneath and behind a lower edge of the window aperture 9. This arrangement allows the last remnants of liquid in the blister 3 to be hidden from a user. This serves as an aid to the user for blister replacement as typically the last remnants of fragrance solution contain little or no fragrance and mostly comprise colorant, i.e. is ⁇ inactive'. If this portion is seen the user may perceive that the blister 3 is still capable of functioning thus the replacement of the blister 3 may be delayed. When hidden the presence of this 'inactive' will not dissuade the user from replacing the unit and thus the high efficacy of the blister 3 is maintained.
- the blister 3 is mounted such that the longitudinal axis A-A is substantially vertical with the deepest part of the recess 19 uppermost. This serves to reduce the appearance of under-fill of the blister 3 - an important consideration for consumers.
- the surface 22A of retainer 22 against which the upper surface 21 of the blister 3 abuts is arranged so as to be co-planer therewith. In the illustrated embodiment this is achieved by surface 22A being substantially domed.
- the fragrance dispense rate of a dispenser in accordance with the invention was measured in an automatic dishwashing machine.
- a dispenser as shown in Figures 1 to 4 was used.
- the dispenser contained a blister as shown in Figures 8 to 11 .
- the blister contained 4 grams of a commercially available dishwasher fragrance.
- the fragrance release rate was measured by taking the weight of the blister after a number of cycles in an automatic dishwasher (Miele, model G 676 SC, program "Universal") which was run for a number of cycles at 65°C.
- the weight loss was expressed as a percentage of fragrance lost from the blister (referring to the initial weight of 4g).
- the dispenser in accordance with the present invention has excellent release properties. Not only is the fragrance release linear in mature but also the rate of release can be varied (whilst still remaining linear) to suit the output required.
- the Comparative Example has a very large uncontrollable rate of release with the rate of release displaying the usual reverse exponential decay.
- a dispenser as shown in Figures 1 to 4 was used.
- the dispenser contained a blister as shown in Figures 8 to 11 .
- the blister contained 4 grams of a commercially available dishwasher fragrance.
- the nature of the fragrance released was tested taking a sample of the fragrance (from the inside of the blister) and feeding the sample into a Gas-Chromatograph (Agilent, model 6890 Series, columns HP-1, HP-5 Carbowax, carrier gas: Helium 1 ml/min; program 80°C to 250°C (10 min), heating rate 6°C/min). In this way the content of the fragrance could be measured.
- a Gas-Chromatograph Alent, model 6890 Series, columns HP-1, HP-5 Carbowax, carrier gas: Helium 1 ml/min; program 80°C to 250°C (10 min), heating rate 6°C/min.
- Example 2 For the fragrance the top note, the medium notes and the low notes were measured after 60 washes under the wash conditions in Example 1 (with the dispenser at the medium setting). The measurements for the dispenser in accordance with the present invention were compared with the pure fragrance and with the fragrance from a dispenser which is outside the scope of the present invention. The results of the analysis are shown in Table 2 (given as total peak area %). Table 2 Dispenser Type Fragrance Top Notes (0-30 min.) Fragrance Middle Notes (30-50 min.) Fragrance Base Notes (50-81 min.) None (Fresh Fragrance) 16.3% 68% 15.7% Dispenser of the Invention 7.9% 74.3% 17.6% Comparative Dispenser 1.5% 56.3% 42.2%
- the fragrance after 60 washes is much closer to that of the fresh fragrance than that of the comparative Example.
Landscapes
- Washing And Drying Of Tableware (AREA)
- Detergent Compositions (AREA)
- Coating Apparatus (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Fats And Perfumes (AREA)
Abstract
Description
- The present invention relates to a dispenser for an automatic dishwashing machine, particularly for use in the dispense of a fragrance.
- Automatic dishwashing is a well recognised field. It provides convenience to a consumer in comparison to manual dishwashing.
- One problem associated with the use of automatic dishwashers is that of malodour. This is typically caused by the presence of a residual amount of wash liquor retained in a part of the machine after use. Microbiological action on this residual liquor can cause a generation of malodour, which although harmless, is unwelcome.
- The malodour is noticeable when the machine is left open between wash cycles and especially at the end of a wash cycle.
- Usually the malodour is addressed by a fragrance emanator. The emanators used generally comprise a cage for attachment to a part of the dishwasher and a source of fragrance (such as a blister) contained therein.
-
FR 2 585 248 - Furthermore
US 4 545 917 describes a detergent dispenser for solid detergents which has controllable openings. - Although these emanators have been found to partially alleviate the malodour issue their use is not without its problems.
- The first problem is that of the rate of release of the fragrance. Normally the fragrance release follows a reverse exponential curve: initially the release of fragrance is strong, with the rate of release diminishing with time. Indeed in the early stages of use the large amount of fragrance released, whilst addressing the malodour issue, can reach an equally unpleasant level. Conversely towards the end of the life cycle of the fragrance emanator the release of fragrance is often so weak that the malodour issue is not effectively addressed.
- A second problem is the nature of the fragrance released. Fragrances, whether a natural or man-made, comprise a complex admixture of components, wherein each component provides a different element to the overall fragrance. Normally the volatility of the components varies having regard to one another. Hence their release from emanators, which are normally unsophisticated devices (due to cost consideration), also varies. This has the effect that the overall scent of the fragrance alters during the lifetime of the emanator.
- It is an object of the present invention to overcome/mitigate the problems above.
- According to the present invention there is provided a dispenser for an automatic dishwasher, the dispenser comprising a body having an aperture for release of an active component, the extent of opening of the aperture being controllable, and wherein the active is contained in a blister disposed in the body.
- Most preferably the active component is a fragrance. The fragrance is generally used to address malodour issues prevalent in automatic dishwashers.
- The dispenser of the present invention has been found to have excellent properties. These properties are particularly pertinent when the release profile of the most preferred active component, fragrance, is considered.
- Firstly the dispenser has been found to be able to release the fragrance in a linear fashion both over and between a large number of automatic dishwasher wash cycles (typically between 50 and 100 wash cycles. This is in contrast to previous dispensers. Furthermore with the dispenser of the invention linear release has been observed at varying opening extents of the aperture. Thus not only is the dispenser able to dispense a fragrance at a linear rate but also the rate of the release has been found to be adjustable, without having an adverse effect on the linearity of the release.
- Additionally the dispenser of the present invention has been found to overcome the problem of differential release of different components of the fragrances. That is to say, throughout the working life of the dispenser of the present invention the fragrance released is virtually identical to that of the 'fresh' fragrance. Without wishing to be bound by theory it is postulated that this effect is achieved by the creation of a zone of saturated fragrance in the headspace of the dispenser.
- Preferably the extent of opening of the aperture is controlled by a gate mounted on the body. The gate is mounted such that it may be moved relative to the body to affect the opening extent of the aperture. Usually the gate is mounted relative to the body such that rotation of the gate relative to the body varies the opening extent of the aperture.
- The gate preferably comprises an apertured member. In this way when the aperture of the gate is at least partially aligned with the body aperture dispense of the active component may occur. The degree of alignment may preferably be varied to affect a variable rate of release.
- In a preferred embodiment the dispenser may have an indication system which displays the degree of alignment between the gate and the body (and hence the expected rate of release) to the user.
- In a further embodiment the aperture on the body may be split into a series of apertures with a bespoke aperture for each level of release. Thus, as an example, the aperture on the body may be split into two separate apertures; one large aperture for a high rate of release (with the aperture on the gate being the same size as that of the body) and a smaller aperture for a lower rate of release. Obviously this arrangement of apertures may be reversed: the series of apertures may be on the gate rather than on the body.
- Preferably the body has a plurality of apertures to allow release of the active component (and also for inflow/drainage of wash liquor). Equally preferably the gate also has a plurality of apertures (most preferably one gate aperture per one body aperture). Clearly it will be understood that in the embodiment where the aperture is subdivided into a series of apertures there may be a plurality of these series of apertures.
- Generally the apertures are arranged in a regular pattern on a side wall of the body.
- Preferably the body has a means to permit attachment to the inside of a dishwasher. Usually the attachment means is in the form of a hook or a clip.
- Usually the body has a window so that the user is able to see the blister retained within the body. In this way the user is able to assess the contents of the blister and hence can obtain an indication of the likely remaining lifetime of the blister. The window is most preferably in the form of an aperture in the body. Preferably the window is sealed by being filled with the blister.
- Generally the reservoir body comprises a substantially planar base.
- The base is permeable to allow the contents of the blister to emanate in use.
- It is preferred that the reservoir (preferably enclosed in a skin) projects from a surface of the base. Most preferably the reservoir is stepped having a lower most and an upper most portion. Preferably, in use, the upper most portion of the reservoir body extends into the window aperture of the body. Preferably, in use, the lower most portion of the reservoir body extends beneath and behind a lower edge of the window aperture of the body.
- As, generally the body is opaque, only the portion of the reservoir body which extends into the window aperture is visible when the blister is mounted in the body. Thus the blister has a hidden portion, which may, when appropriate conceal a residue of a component which is to be released from the emanator. In this way the presence of any residue (particularly from a fragrance composition) does not detrimentally effect the impression of the user as to whether the blister needs to be replaced.
- The volume of the portion of the reservoir body which is hidden may be varied to suit the expected amount of residue remaining in the blister. Preferably the volume of the reservoir body which is hidden comprises around 15% of the volume of the entire reservoir. (It has been found that typical fragrance compositions leave a residue of up to 15% by volume after the active components thereof have been allowed to/cause to emanate. Thus a large portion of the reservoir body (around 85% by volume) may be observed by user. This gives excellent indication of the use of the blister contents and end-of-life indication.
- Generally the blister, more particularly the skin of the blister, is transparent so as to allow the user to view the contents thereof.
- Most preferably the blister contains a fragrance composition. Generally the fragrance composition contains a dye and/or a colouring agent. The dye/colouring agent may give an indication of the nature of the fragrance for added consumer recognition/appeal. For example an 'apple' fragrance may have a green colour and a 'citrus' fragrance a yellow/orange colour.
- The dispenser will now be described with reference to the following drawings, in which:-
-
Figure 1 is a plan view of the components of the body of the dispenser of the invention; -
Figure 2 is an underneath plan view of the components of the body of the dispenser of the invention; -
Figure 3 is a perspective view of an exploded device of the invention; -
Figure 4 is an alternative perspective view of an exploded device of the invention; -
Figure 5 is a plan view of the components of the body of an alternative embodiment of the invention; -
Figure 6 is an underneath plan view of an assembled device of the alternative embodiment of the dispenser of the invention; -
Figure 7 is a side view of an assembled device of the alternative embodiment of the dispenser of the invention; -
Figures 8 and 9 show side views of a preferred embodiment of a blister which can be used in the dispense of the invention; and -
Figures 10 and 11 show cross sections of the blister offigures 8 and 9 taken along the longitudinal access A-A and the equatorial access B-B respectively. - With reference to
Figures 1 to 4 the dispenser 1 of the present invention comprises abody 2, ablister 3 and agate 4. - The
body 2 comprises afront section 5 and arear section 6. Both thefront section 5 and therear section 6 include a largelycircular portion 7 and anextended portion 8. Thefront section 5 and therear section 6 adjoin by virtue of a 'snap fit' arrangement. - In the centre of the
circular portion 7 of thefront section 5 there is awindow aperture 9 to allow a consumer to view the contents of theblister 3, mounted therein. Theextended section 8 of thefront section 5 includes ahook 10 for mounting the body within an automatic dishwasher (not shown). The interior side of thefront section 5 has alip 11 arranged around thewindow aperture 9. Thelip 11 provides support for theblister 3 to be mounted within thebody 2 adjacent the window aperture a 9 such that the contents of theblister 3 are visible form the exterior of thebody 2. - The
circular portion 7 of therear section 6 is stepped. This provides a volume within thebody 2 for retention of theblister 3. Thecircular portion 7 includes a number of clusters ofapertures 12 arranged with regular spacing. Eachcluster 12 comprises three individual apertures; a,b,c, arranged in an inverted `L' configuration. - The
extended section 8 of therear section 6 includes a series of markings; `HI', 'MED' and `LO'. The significance of these markings will become clear with reference to thegate 4. - The
gate 4 includes a largelycircular portion 7 and alimb extension 13. - The
circular portion 7 of thegate 4 is stepped in the same way as therear section 6 of thebody 2. Thecircular portion 7 includes a number of clusters ofapertures 14 arranged with regular spacing. Eachcluster 14 comprises two individual apertures; I,II, arranged in an 'I' configuration. - The
limb extension 13 of thegate 4 extends beyond the markings on theextended section 8 of therear portion 6. Thelimb extension 13 includes awindow 15. The markings are intended to be visible through thewindow 15 of thelimb extension 13. - The
gate 4 is mounted adjacent therear section 6 so that thegate 4 may be rotated relative to therear section 6. In this way the clusters ofapertures 14 on thegate 4 may be arranged relative to the cluster ofapertures 12 on therear section 6. - In the illustrated embodiment three arrangements of the
gate 4 relative to therear section 6 are contemplated (although none of these arrangements is actually illustrated) as follows:- - In the first arrangement the
window 15 of thelimb extension 13 of thegate 4 is aligned such that the marking `LO' is visible therethrough. In this orientation none of the apertures I, II on thegate 4 are aligned with the apertures a,b,c on therear section 6. - In the second arrangement the
window 15 of thelimb extension 13 of thegate 4 is aligned such that the marking 'MED' is visible therethrough. In this orientation the apertures I on thegate 4 are aligned with the apertures a on therear section 6. - In the third arrangement the
window 15 of thelimb extension 13 of thegate 4 is aligned such that the marking 'HI' is visible therethrough. In this orientation the apertures I and II on thegate 4 are aligned with the apertures b and c on therear portion 6. - Thus it can be seen that as the gate is moved from the 'LO' to the 'HI' setting the area of overlap of the apertures I, II on the
gate 4 and the apertures a, b, c on therear section 6 increases. This allows increased release form the dispenser 1. - It will obviously be appreciated that whilst in
Figures 1 to 4 three separate arrangements of thegate 4 relative to therear section 6 have been contemplated, other numbers of arrangements with other numbers of different positions are not ruled out. - With reference to
Figures 5 to 7 an alternative embodiment of the dispenser 1 of the present invention is shown. The alternative embodiment shares many of the features described above for the first embodiment (with reference toFigures 1 to 4 ). - The
body 2 comprises afront section 5 and arear section 6. Thefront section 5 and therear section 6 adjoin by virtue of a 'snap fit' arrangement. Both thefront section 5 and therear section 6 are dished to provide a volume within thebody 2 for retention of theblister 3. - The
rear section 6 includes ahook 10 for mounting the body within an automatic dishwasher. - The periphery of the
front section 5 includes a number of clusters ofapertures 12 arranged with regular spacing. Eachcluster 12 comprises four individual apertures; a,b,c,d, arranged in a row. - The periphery of the
rear section 6 is cutaway in sections to create fourprojections 16. - The
front section 5 is mounted adjacent therear section 6 so that thefront section 5 may be rotated relative to therear section 6. In this way the clusters ofapertures 12 on thefront section 5 may be arranged relative to theprojections 16. - In the illustrated embodiment five arrangements of the
front section 5 relative to theprojections 16 are contemplated (although none of these arrangements is actually illustrated) as follows:- - In the first arrangement the
front section 5 is aligned such that all of the apertures a,b,c,d are adjacent theprojections 16 on therear section 6. Thus none of the apertures a,b,c,d is open. - In the second through to the fifth arrangement the
front section 5 is aligned such that a decreasing number of the apertures a,b,c,d is adjacent theprojections 16 on therear section 6. Thus progressively the apertures a,b,c,d are opened with, finally in the fifth arrangement, all of the apertures a,b,c,d being open. - Thus it can be seen that as the
front section 5 is moved relative to therear section 6 the area of overlap of the apertures a,b,c,d on thefront section 5 and theprojections 16 on therear section 6 decreases. This allows increased release from the dispenser 1. - It will be appreciated that whilst in
Figures 5 to 7 five separate arrangements of thefront section 5 relative to therear section 6 have been contemplated, other numbers of arrangements with other numbers of different positions are not ruled out. -
Figures 8 to 11 show the preferred embodiment of theblister 3 for use with the dispenser 1. - The
blister 3 comprises a base 17 in the form of an oval strip. Theoval base 17 comprises a permeable skin for release of the fragrance. - The
base 17 is provided with two-steppedplatforms base 17. Theplatform 18 has a similar shape to thebase 17, namely it is oval, yet is smaller than the base 17, thus leaving anon-platformed perimeter 20 therearound. - The stepped
platform 19 has acircular surface 21. Thesurface 21 is inclined at an angle about an axis therethrough, the said axis being arranged parallel to the equatorial axis of the blister B-B. Thus the steppedplatform 19 has a depth which varies along longitudinal axis A-A. - The
surface 21 and most preferably theentire blister 3 is transparent. - In use the
blister 3 is preferably supported in thebody 2 by thelip 11 such that at least a portion of thesurface 21 of the steppedplatform 19 is visible through thewindow aperture 9. This allows the user to visually determine the amount of fragrance contained within theblister 3. - The
platform 18 extends beneath and behind a lower edge of thewindow aperture 9. This arrangement allows the last remnants of liquid in theblister 3 to be hidden from a user. This serves as an aid to the user for blister replacement as typically the last remnants of fragrance solution contain little or no fragrance and mostly comprise colorant, i.e. is `inactive'. If this portion is seen the user may perceive that theblister 3 is still capable of functioning thus the replacement of theblister 3 may be delayed. When hidden the presence of this 'inactive' will not dissuade the user from replacing the unit and thus the high efficacy of theblister 3 is maintained. - Generally the
blister 3 is mounted such that the longitudinal axis A-A is substantially vertical with the deepest part of therecess 19 uppermost. This serves to reduce the appearance of under-fill of the blister 3 - an important consideration for consumers. - Generally the surface 22A of retainer 22 against which the
upper surface 21 of theblister 3 abuts is arranged so as to be co-planer therewith. In the illustrated embodiment this is achieved by surface 22A being substantially domed. - The invention will be further illustrated with reference to the following non-limiting examples.
- The fragrance dispense rate of a dispenser in accordance with the invention was measured in an automatic dishwashing machine.
- A dispenser as shown in
Figures 1 to 4 was used. The dispenser contained a blister as shown inFigures 8 to 11 . The blister contained 4 grams of a commercially available dishwasher fragrance. - The fragrance release rate was measured by taking the weight of the blister after a number of cycles in an automatic dishwasher (Miele, model G 676 SC, program "Universal") which was run for a number of cycles at 65°C. The weight loss was expressed as a percentage of fragrance lost from the blister (referring to the initial weight of 4g).
- In the tests a varying number of apertures of the dispenser were set to the open position to determine the effect that this would have on the fragrance release rate. A comparative example of a dispenser which is outside the scope of the present invention, i.e. not having controllable apertures was also tested as a comparison.
- The results of the weight loss are shown in Table 1 below.
Table 1 No of Washes Loss of Fragrance (% w/w) Comparative Example "LO" "MED" "HI" 5 9.54 2.00 3.85 6.79 10 18.71 3.75 8.79 13.40 15 26.75 5.88 13.14 19.88 20 34.56 7.72 17.20 26.15 25 43.35 11.58 23.04 33.70 30 49.85 13.39 26.60 38.63 35 56.33 15.34 30.92 43.92 40 63.18 17.81 35.73 49.32 45 70.50 21.01 40.59 55.13 50 75.59 22.58 43.82 59.61 55 79.83 24.12 47.61 63.98 60 83.48 25.45 50.63 67.93 "LO" means 0 open apertures.
"MED" means 8 open apertures.
"HI" means 16 open apertures. - The dispenser in accordance with the present invention has excellent release properties. Not only is the fragrance release linear in mature but also the rate of release can be varied (whilst still remaining linear) to suit the output required.
- The Comparative Example has a very large uncontrollable rate of release with the rate of release displaying the usual reverse exponential decay.
- The nature of the fragrance dispensed from a dispenser in accordance with the invention was measured.
- A dispenser as shown in
Figures 1 to 4 was used. The dispenser contained a blister as shown inFigures 8 to 11 . The blister contained 4 grams of a commercially available dishwasher fragrance. - The nature of the fragrance released was tested taking a sample of the fragrance (from the inside of the blister) and feeding the sample into a Gas-Chromatograph (Agilent, model 6890 Series, columns HP-1, HP-5 Carbowax, carrier gas: Helium 1 ml/min; program 80°C to 250°C (10 min),
heating rate 6°C/min). In this way the content of the fragrance could be measured. - For the fragrance the top note, the medium notes and the low notes were measured after 60 washes under the wash conditions in Example 1 (with the dispenser at the medium setting). The measurements for the dispenser in accordance with the present invention were compared with the pure fragrance and with the fragrance from a dispenser which is outside the scope of the present invention. The results of the analysis are shown in Table 2 (given as total peak area %).
Table 2 Dispenser Type Fragrance Top Notes (0-30 min.) Fragrance Middle Notes (30-50 min.) Fragrance Base Notes (50-81 min.) None (Fresh Fragrance) 16.3% 68% 15.7% Dispenser of the Invention 7.9% 74.3% 17.6% Comparative Dispenser 1.5% 56.3% 42.2% - In the dispenser of the present invention the fragrance after 60 washes is much closer to that of the fresh fragrance than that of the comparative Example.
Claims (12)
- A dispenser (1) for an automatic dishwasher, the dispenser comprising a body (2) having an aperture for release of an active component, the extent of opening of the aperture being controllable, characterised in that the active is contained in a blister (3) disposed in the body, and in that the active component is a fragrance composition which is a liquid within the blister and is released from the blister as a vapour.
- A dispenser according to claim 1, wherein the fragrance composition contains a dye and/or a colouring agent.
- A dispenser according to claim 1 or 2, wherein the extent of opening of the aperture is controlled by a gate (4) mounted on the body.
- A dispenser according to claim 3, wherein rotation of the gate relative to the body opening extent of the aperture.
- A dispenser according to claim 3 or 4, wherein the gate comprises an apertured member.
- A dispenser according to claim 3, 4 or 5, wherein the dispenser has an indication system to display the degree of alignment between the gate and the body.
- A dispenser according to any one of claims 1 to 6, wherein the aperture on the body is split into a series of apertures with a bespoke aperture for each level of release.
- A dispenser according to any one of claims 1 to 7, wherein the body has a plurality of apertures to allow release of the active component (also for inflow/drainage of wash liquor).
- A dispenser according to any one of claims 1 to 7, wherein the gate has a plurality of apertures.
- A dispenser according to claim 8 or 9, wherein the apertures are arranged in a regular pattern.
- A dispenser according to any one of claims 1 to 10, wherein the body has a means (10) to permit attachment to the inside of a dishwasher.
- A dispenser according to any one of claims 1 to 11, wherein the body has a window (9).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0408811A GB2413262B (en) | 2004-04-21 | 2004-04-21 | Dispenser for dishwashing additives |
PCT/GB2005/001546 WO2005102141A1 (en) | 2004-04-21 | 2005-04-21 | Dispenser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1737333A1 EP1737333A1 (en) | 2007-01-03 |
EP1737333B1 true EP1737333B1 (en) | 2009-06-17 |
Family
ID=32344088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05741955A Not-in-force EP1737333B1 (en) | 2004-04-21 | 2005-04-21 | Dispenser |
Country Status (12)
Country | Link |
---|---|
US (1) | US20080011870A1 (en) |
EP (1) | EP1737333B1 (en) |
CN (1) | CN100581436C (en) |
AT (1) | ATE433704T1 (en) |
AU (1) | AU2005235344B2 (en) |
BR (1) | BRPI0510037A (en) |
CA (1) | CA2560006A1 (en) |
DE (1) | DE602005014960D1 (en) |
ES (1) | ES2328500T3 (en) |
GB (1) | GB2413262B (en) |
WO (1) | WO2005102141A1 (en) |
ZA (1) | ZA200607479B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070243507A1 (en) * | 2006-04-14 | 2007-10-18 | Denise Taylor | Method for associative learning based upon the use of controlled release fragrances from substrates and product produced in accordance therewith |
WO2008141473A1 (en) | 2007-05-23 | 2008-11-27 | Givaudan Sa | Fragrance dissemination device |
DE102008022219A1 (en) * | 2008-05-06 | 2009-11-12 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance and plastic part for this |
GB201103251D0 (en) | 2011-02-25 | 2011-04-13 | Reckitt Benckiser Nv | Emanator device |
US8616375B2 (en) | 2012-01-13 | 2013-12-31 | Whirlpool Corporation | Packets for treating chemistry |
EP2976983B1 (en) | 2014-07-24 | 2022-05-11 | Whirlpool EMEA S.p.A. | A substance dispenser for dishwashers |
DE102015204177A1 (en) * | 2015-03-09 | 2016-09-15 | Henkel Ag & Co. Kgaa | Fragrance dispenser for a dishwasher, dishwasher with fragrance dispenser and method for scenting a dishwasher |
JP2023504183A (en) | 2019-12-06 | 2023-02-01 | エス.シー. ジョンソン アンド サン、インコーポレイテッド | Dispenser and its usage |
US11382998B2 (en) | 2019-12-19 | 2022-07-12 | Wildlife Research Center, Inc. | Scent device |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2555047A (en) * | 1948-10-22 | 1951-05-29 | Logue Floyd | Sachet holder |
US4157787A (en) * | 1977-08-23 | 1979-06-12 | Milpak Incorporated | Air freshener dispenser |
US4567675A (en) * | 1982-05-20 | 1986-02-04 | Lever Brothers Company | Device for conditioning fabrics in a tumble-dryer |
USD280757S (en) * | 1982-09-23 | 1985-09-24 | Airwick Industries, Inc. | Dispenser for solid material |
US4545917A (en) * | 1984-02-09 | 1985-10-08 | Creative Products Resource Associates Ltd. | Automatic dishwasher product in solid form |
US4617157A (en) * | 1985-04-22 | 1986-10-14 | Whirlpool Corporation | Fragrance dispenser for room air conditioner |
FR2585248B1 (en) * | 1985-07-25 | 1987-10-09 | Rhodic Sa | PERFECTED PERFUME BAG FOR USE IN DISHWASHER |
US4849606A (en) * | 1987-12-23 | 1989-07-18 | S. C. Johnson & Son, Inc. | Tamper-resistant container utilizing a flexible seal |
US4883692A (en) * | 1989-01-13 | 1989-11-28 | Donald Spector | Aromatic foam-plastic decorative object |
DE19737077C1 (en) * | 1997-08-26 | 1998-11-19 | Ipac H & T Gmbh Entwicklung Pr | Fragrance disperser used e.g. in a dishwashing machine |
WO2000024435A1 (en) * | 1998-10-22 | 2000-05-04 | Firmenich S.A. | Gel type vapor release device |
DE10036850A1 (en) * | 2000-07-28 | 2001-10-18 | Henkel Kgaa | Device for delivering a liquid into the inside of a dishwasher or washing machine consists of a container to accept a liquid product and to be placed in the inside space of a dishwasher or a washing machine |
US6852278B2 (en) * | 2001-11-13 | 2005-02-08 | International Fragrance & Technology, Inc. | Apparatus and method for the controlled release of volatile materials |
MXPA04009918A (en) * | 2002-04-08 | 2005-08-16 | E R Ellis And Associates Inc | Automatically controlling the interaction of a medium with an external environment. |
AU2003255378A1 (en) * | 2002-08-09 | 2004-03-19 | Henkel Kommanditgesellschaft Auf Atkien | Fragrance emitting system |
US7426799B2 (en) * | 2004-06-30 | 2008-09-23 | S.C. Johnson & Son, Inc. | Air freshener with frame and refill holder |
-
2004
- 2004-04-21 GB GB0408811A patent/GB2413262B/en not_active Expired - Fee Related
-
2005
- 2005-04-21 WO PCT/GB2005/001546 patent/WO2005102141A1/en active Application Filing
- 2005-04-21 EP EP05741955A patent/EP1737333B1/en not_active Not-in-force
- 2005-04-21 AT AT05741955T patent/ATE433704T1/en not_active IP Right Cessation
- 2005-04-21 US US11/568,080 patent/US20080011870A1/en not_active Abandoned
- 2005-04-21 AU AU2005235344A patent/AU2005235344B2/en not_active Ceased
- 2005-04-21 ES ES05741955T patent/ES2328500T3/en active Active
- 2005-04-21 CA CA002560006A patent/CA2560006A1/en not_active Abandoned
- 2005-04-21 BR BRPI0510037-2A patent/BRPI0510037A/en not_active IP Right Cessation
- 2005-04-21 CN CN200580012530A patent/CN100581436C/en not_active Expired - Fee Related
- 2005-04-21 DE DE602005014960T patent/DE602005014960D1/en active Active
-
2006
- 2006-09-07 ZA ZA200607479A patent/ZA200607479B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN1946327A (en) | 2007-04-11 |
AU2005235344A1 (en) | 2005-11-03 |
AU2005235344B2 (en) | 2010-09-23 |
CA2560006A1 (en) | 2005-11-03 |
GB0408811D0 (en) | 2004-05-26 |
EP1737333A1 (en) | 2007-01-03 |
US20080011870A1 (en) | 2008-01-17 |
GB2413262B (en) | 2006-08-16 |
GB2413262A (en) | 2005-10-26 |
BRPI0510037A (en) | 2007-10-02 |
ATE433704T1 (en) | 2009-07-15 |
WO2005102141A1 (en) | 2005-11-03 |
ZA200607479B (en) | 2008-05-28 |
DE602005014960D1 (en) | 2009-07-30 |
CN100581436C (en) | 2010-01-20 |
ES2328500T3 (en) | 2009-11-13 |
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