FORM 2
THE PATENTS ACT, 1970 (39 of 1970) & THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10, rule 13) 1. Title of the invention: VOLATILE LIQUID DISPENSER
2. Applicant(s)
NAME NATIONALITY ADDRESS
JYOTHY
LABORATORIES
LIMITED Indian Ujala House Ram Krishna Mandir Road Kondivita, Andheri East Mumbai - Maharashtra 400059, India
NAME NATIONALITY ADDRESS
JYOTHY Indian Ujala House Ram Krishna Mandir
LABORATORIES Road Kondivita, Andheri East
LIMITED Mumbai - Maharashtra 400059,
India
3. Preamble to the description
COMPLETE SPECIFICATION
The following specification particularly describes the invention and the manner in which it
is to be performed.

TECHNICAL FIELD
[0001] The subject matter described herein, in general, relates to a
dispenser, and in particular, relates to a dispenser for dispensing a volatile liquid.
BACKGROUND
[0002] Liquid dispenser is a machine used to dispense a volatile liquid in
surrounding air. For example, the liquid dispenser can be used to dispense an insect repellant liquid, such as a mosquito repellant liquid. In another example, the liquid dispenser may be used to dispense perfumes or fragrant oils. The liquid dispenser uses an electric heater, which vaporizes the liquid and dispenses it into the surrounding air. The volatile liquid includes active ingredients that perform a desired function, for example, disrupting normal activity of mosquitoes, repelling insects, or spreading fragrance.
BRIEF DESCRIPTION OF DRAWINGS
[0003] The detailed description is described with reference to the
accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The same numbers are used throughout the drawings to reference like features and components.
[0004] Fig. 1 illustrates a side view of a dispenser, in accordance with an
implementation of the present subject matter.
[0005] Fig. 2 illustrates a side view of the top housing of the dispenser, in
accordance with an implementation of the present subject matter.
[0006] Fig. 3 illustrates a perspective inverted view of a bottom housing of
the dispenser, in accordance with an implementation of the present subject matter.
[0007] Fig. 4 illustrates a perspective view of the dispenser, in accordance
with an example of the present subject matter

[0008] Fig 5(a) illustrates a sectional view of the dispenser, in accordance
with an implementation of the present subject matter.
[0009] Fig 5(b) illustrates an enlarged view of the press-fit member in the
dispenser, in accordance with an implementation of the present subject matter
[0010] Fig 6 illustrates a side view of the dispenser, in accordance with an
implementation of the present subject matter.
DETAILED DESCRIPTION
[0011] The present subject matter described herein is directed to a
dispenser for dispensing a volatile liquid. In an example, the volatile liquid can be an insect repellant liquid, such as a mosquito repellant liquid.
[0012] The description herein of the present subject matter is provided
with reference to a mosquito repellant dispenser. However, it will be understood that the dispenser of the present subject matter can be used for other dispensing volatile liquids for other purposes as well, such as for fragrance, humidification, and air freshening. Other examples are also possible, without deviating from the scope of the present subject matter.
[0013] Generally, a dispenser has a two-part housing structure, namely, a
top housing and a bottom housing. The top housing comprises multiple top vents, a screw assembly, and a two-pin plug. The bottom housing comprises a screw assembly which corresponds to the screw assembly of the top housing. The screw assemblies of the top housing and the bottom housing are fastened to each other using screws for the purpose of assembling the dispenser.
[0014] However, such structural configuration of the dispenser leads to a
bulky and complex assembly. For instance, usage of the screw assemblies in the top housing and the bottom housing adds to the space constraints of the dispenser. Also, since the top housing and the bottom housing are fastened together by screws, dismantling of the dispenser becomes difficult, particularly in situations

like replacing the two pin plug or a heating unit. Such screw assemblies and the screws may increment the material cost of the dispenser.
[0015] Further, the bottom housing of the dispenser includes a bottle
holding region for holding a bottle containing the volatile liquid. The bottle holding region has a bottle holding threads which engage with threads provided on neck of the bottle. In an example, in order to firmly hold the bottle in the bottle holding region, the bottle may be locked in the bottle holding region of the bottom housing by way of pushing the bottle within the bottle holding region and then rotating the bottle so that the threads on the bottle engage with the bottle holding threads formed on the bottom holding region of the bottom housing.
[0016] However, the provision of pushing and rotating the bottle to lock
the bottle with the bottle holding threads in the bottle holding region is a cumbersome process, especially when locking a re-fill bottle. Also, the bottle holding threads provided on the bottom holding region adds to the cost of formation of the bottle holding threads on the dispenser.
[0017] Yet further, the dispenser comprises a heating unit for vaporizing
the volatile liquid. The heating unit generally includes two heaters for heating a wick of the bottle. In an example, the wick is a stick-like component of the bottle which remains in direct contact with the volatile liquid present in the bottle and vaporizes the volatile liquid when heated by the heating unit.
[0018] However, the provision of using the two heaters in the heating unit
increases the manufacturing cost and size of the dispenser.
[0019] Various embodiments and implementations described herein, in
accordance with the present subject matter, include a compact and a cost-effective dispenser. In an implementation, the dispenser includes a top housing and a bottom housing. The top housing has a plurality of snap-fit locks provided along its circumference. The bottom housing has a plurality of grooves with which the plurality of snap-fit locks formed on the top housing are engaged.

[0020] Thus, with the implementation of the present subject matter, the
structure of the dispenser becomes simple, compact, and cost-effective. For example, the plurality of snap-fit locks eliminates the need of screws and screw assembly for locking the top housing with the bottom housing. This helps in achieving substantial reduction in the manufacturing cost of the dispenser. In addition to reduction in the manufacturing cost, the plurality of snap-fit locks do not acquire as much space as compared to the screw and screw assembly in conventional dispenser. The reduction in acquired space helps in obtaining a compact dispenser. Also, the snap-fit locks and grooves arrangement allows easy assembly and dismantling of the dispenser.
[0021] In said dispenser as per an implementation of the present subject
matter, the bottom housing of the dispenser includes one or more press-fit members in a bottle holding region for locking a bottle having volatile liquid. In an example, the one or more press-fit members may be made using a flexible material so that when the bottle is pushed with in the bottom housing, the one or more press-fit members are compressed to provide a passage for the bottle. In another example, the one or more press-fit members may be made tapered for allowing easy insertion of the bottle. The one or more press-fit members may include locking elements to lock the bottle in the bottle holding region. The locking elements can be, but not limited to, undercuts or projecting arms.
[0022] Thus, with such implementation of the dispenser, the bottom
housing of the dispenser provides an easy way of inserting and locking the bottle in the bottle holding region as the bottle may have to be pushed till the point threads of the bottle engage with the locking elements provided on the one or more press-fit members.
[0023] Further, in said dispenser as per an implementation of the present
subject matter, the dispenser includes a heating unit for vaporizing the volatile liquid contained in the bottle. The heating unit comprises a single heater which remains in contact with a corresponding part of the bottle, i.e., wick, to heat the

volatile liquid. By having a single heater instead of conventional dual heater arrangement, the material cost of the dispenser described herein is further reduced.
[0024] These and other examples are further described herein with
reference to FIGS. 1-6. It should be noted that the description and figures relate to example implementations, and should not be construed as a limitation to the present subject matter. It is thus understood that various arrangements may be devised that, although not explicitly described or shown herein, embody the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and embodiments of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[0025] Fig. 1 illustrates a side view of a dispenser 100, in accordance with
an implementation of the present subject matter. The dispenser 100 includes a top housing 102, a bottom housing 104, and a two-pin plug 110.
[0026] The top housing 102 is a hollow hemispherical structure, which is
provided with multiple top vents 106 on its top. The multiple top vents 106 help to uniformly distribute vaporized liquid in surroundings in all directions. The top housing 102 further includes an indicator 112 for indicating electrical state of the dispenser 100. The indicator 112 may be positioned around the circumference of the top housing 102. In an example, the indicator 112 may be an annular strip of a light emitting diode (LED).
[0027] The bottom housing 108 is formed hollow to provide a bottle
holding region 114 for holding a bottle. The bottom housing 104 has multiple bottom vents 108 for distributing the vaporized liquid in the surroundings.
[0028] The two-pin plug 110 is used for plugging in the dispenser 100 into
a power supply source (not shown in Fig. 1). In an example, the two-pin plug 110 includes an upper insulation covering 116 attached to the top housing 102, and a bottom insulation covering 118 attached to the bottom housing 104. In said

example, the upper insulation covering 116 and the bottom insulation covering 118 locks the two-pin plug 110 to the top housing 102 and the bottom housing 104.
[0029] Fig. 2 illustrates a side view of the top housing 102, in accordance
with an implementation of the present subject matter. The top housing 102 includes a plurality of snap-fit locks 202 provided along the circumference for locking the top housing 102 with the bottom housing 104. In an example, the two snap-fit locks may be provided along the circumference of the top housing 102, and one snap fit-lock may be provided on the upper insulation covering 116 of the two-pin plug 110. It is to be understood that the arrangement of the plurality of snap-fit locks 202 described herein relates to the exemplary implementation, and should not be construed as a limitation to the present subject matter.
[0030] In an example, the plurality of snap-fit locks 202 may be locking
arms formed integrally with the top housing 102. In said example, the locking arms may project toward the bottom housing 104.
[0031] In an example, the top housing 102 includes a heating unit 204
attached to the top housing 102. The heating unit 204 may be attached to the bottom housing 104. In an implementation of the present subject matter, the heating unit 204 includes a single heater and an operating circuitry to control the heater to achieve different levels of heating in different modes of operation. In an example, the operating circuitry can be used to alter rate of vaporization of the volatile liquid. As will be understood, when the bottle is firmly locked with in bottle holding region 114 of the bottom housing 104, the heater will come in contact with a corresponding part, i.e., wick, of the bottle to heat the volatile liquid and realize the vaporization and dispensing of the volatile liquid. It is to be understood that although a single heater is described in the subject matter described herein, the heating unit 204 may also include more than one heater surrounding the wick of the bottle.

[0032] Fig. 3 illustrates an inverted perspective view of the bottom
housing 104, in accordance with an implementation of the present subject matter. The bottom housing 104 has a plurality of grooves 302 which corresponds to the plurality of snap-fit locks 202 provided in the top housing 102. As depicted in Fig. 3, the two grooves may be provided around the circumference of the bottom housing 104 and one groove may be provided on the bottom insulation covering 118 of the two-pin plug 110. However, in alternative implementations, distribution of the plurality of grooves 302 may change depending on the distribution of the plurality of snap-fit locks 202 on the top-housing 102.
[0033] During assembly of the dispenser 100, the top housing 102 may be
positioned over the bottom housing 104 such that the plurality of snap-fit locks 202 engage with the plurality of grooves 302 provided on the bottom housing 104 to lock the top housing 102 with the bottom housing 104. Thus, the plurality of snap-fit locks 202 and the plurality of grooves 302 provide an easy way of assembling the dispenser 100. Such dispenser 100 is easy to dismantle in case some components, i.e., heating unit 204 and the two-pin plug 110, are to be replaced or repaired. Further, the plurality of snap-fit locks 202 eliminate the use of other fastening means, such as screw assemblies and screws, which may increase the material cost of the dispenser 100. As there are no fastening means being used, size of the dispenser 100 can be reduced and a compact dispenser assembly is achieved.
[0034] Further, as can be seen in Fig. 3, the bottom housing 104 includes a
bottle holding region 114. The bottle holding region 114 includes one or more press-fit members 304 for locking the bottle within the bottom housing 304. In an example, the one or more press-fit members 304 may be made up of a flexible material. Therefore, when the bottle is inserted into the bottom housing 104, side walls of the bottle compresses the one or more press-fit members 304 making a passage for the bottle. In another example, the one or more press-fit members 304 may be provided with a taper. The taper constricts towards the top of the bottom

housing 104. The taper facilitates easy insertion of the bottle into the bottom housing 104.
[0035] Further, in an implementation, the one or more press-fit members
304 are provided with a locking element. In an example as shown in Fig. 4, the locking element can be an undercut 406. In another example as shown in Fig. 5(a), the locking element can be a projecting arm 502. It is the locking element in the one or more press-fit members 304 with which threads 404 of the bottle 402 are locked.
[0036] Thus, with the implementation of the present subject matter, when
the bottle 402, for example, a refill-bottle, is to be locked in the bottle holding region 114, the bottle 402 may be pushed within the bottom housing 104 till the point the threads 404 on the bottle 402 are locked with the locking element provided on the one or more press-fit members 304. Therefore, the one or more press-fit members 304 allows convenient insertion and locking of the bottle 402 within the bottle holding region 114 of the bottom housing 104.
[0037] Fig. 4 illustrates an exploded view of the dispenser 100 in which
the bottle 402 is being inserted, in accordance with an implementation of the present subject matter. As depicted in Fig. 4, the locking element provided on the one or more press-fit members 304 is the under-cut 406. The bottle 402 may be pushed into the bottom housing 104 up to the point where bottom most thread 404 engages with the undercut 406. When the bottle 402 is locked within the bottle holding region 114 of the bottom housing 104 by the locking element, the heating unit 204 may come in contact with the corresponding part of the bottle 402 to heat the volatile liquid and realize the vaporization and dispensing of the volatile liquid. The vaporized liquid is then distributed in the surroundings through the top vents 104 and the bottom vents 108.
[0038] Fig. 5(a) illustrates a sectional side view of the dispenser 100, in
accordance with an implementation of the present subject matter. The locking element provided on the one or more press-fit members 304 is the projecting arm

502. As described previously, the one or more press-fit members 304 is made up of flexible material. The projecting arm 502 is attached to a side wall of the bottom housing 104. When the bottle 402 is inserted into the bottom housing 104, walls of the bottle 402 compresses the one or more flexible press-fit members 304. The compression of the one or more flexible press-fit members 304 allows the projecting arm 502 to extend through the one or more flexible press-fit members 304. The bottle 402 may be push-inserted into the bottom housing till the point projecting arm 502 engages with the threads 404 of the bottle 402 to lock the bottle 402 in bottle holding region 114 of the bottom housing 104.
[0039] Fig. 5(b) illustrates an enlarged view of the one or more flexible
press-fit members 304 having the projecting arm 502, in accordance with an implementation of the present subject matter. The projecting arm 502 is fixedly attached to the side wall of the bottom housing 104. In an example, the projecting arm 502 may be integrally formed with the side wall of the bottom housing 104. When the flexible press-fit member 304 is compressed, the projecting arm 502 extends through the one or more flexible press-fit members 304.
[0040] Fig. 6 illustrates the dispenser 100 and the bottle 402 in a locked
position, in accordance with an implementation of the present subject matter. The bottle 402 is locked to the bottom housing 104 of the dispenser 100 with the help of the one or more flexible press-fit members 304. As depicted in Fig. 6, the bottom most thread of the bottle 402 is engaged with the projecting arm 502 of the one or more press-fit members 304.
[0041] The provision of the press-fit members 304 in the bottom housing
104 allows an easy and convenient insertion and locking of the bottle 402 within the bottom housing 104. Further, such provision of the one or more press-fit members 304 firmly holds the bottle 402 in the bottle holding region 114.
[0042] It should be noted that the description and figures relate to
example implementations, and should not be construed as a limitation to the present subject matter. It is thus understood that various arrangements may be

devised that, although not explicitly described or shown herein, embody the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and embodiments of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.

I/We Claim:
1. A dispenser (100) for dispensing a volatile liquid, the dispenser (100)
comprising:
a top housing (102) comprising a plurality of snap-fit locks (202) formed along the circumference of the top housing (102); and
a bottom housing (104) comprising a plurality of grooves (302) with which the plurality of snap-fit locks (202) are engaged.
2. The dispenser (100) as claimed in claim 1, wherein the plurality of snap-fit locks (202) comprises a locking arm integrally formed on the top housing (102).
3. The dispenser (100) as claimed in claim 1, wherein the plurality of snap-fits locks (202) formed on the top housing (102) corresponds to the plurality of grooves (302) formed on the bottom housing (104).
4. The dispenser (100) as claimed in claim 1, wherein the bottom housing (104) comprises one or more flexible press-fit members (304) for locking the bottle (402) filled with the volatile liquid.
5. The dispenser (100) as claimed in claim 4, wherein the one or more flexible press-fit members (304) has locking elements which engages with threads (404) of the bottle (402) filled with the volatile liquid.
6. The dispenser (100) as claimed in claim 5, wherein the locking element is
an undercut (406) formed on the one or more press-fit members (304).
7. The dispenser (100) as claimed in claim 5, wherein the locking element is
a projecting arm (502) attached to the one or more press-fit members (304).

8. The dispenser (100) as claimed in claim 1, wherein top housing (102) comprises an indicator (112) to indicate the electrical state of the dispenser (100).
9. The dispenser (100) as claimed in claim 8, wherein the indicator (112) is a light emitting diode (LED).
10. The dispenser (100) as claimed in claim 1, further comprises a heating unit (204) for vaporizing the volatile liquid.
11. The dispenser (100) as claimed in claim 10, wherein the heating unit (204) comprises a single heater.
12. The dispenser (100) as claimed in claim 1, wherein the top housing (102) includes one or more top vents (106) formed thereon, for uniformly distributing the vaporized liquid.
13. The dispenser (100) as claimed in claim 1, wherein the bottom housing (104) comprises one or more bottom vents (106) formed thereon, for uniformly distributing the vaporised liquid.
14. The dispenser (100) as claimed in claim 1, further comprises a two-pin plug (110) to be inserted into a power supply.

ABSTRACT VOLATILE LIQUID DISPENSER
The subject matter described herein relates to a dispenser (100) for dispensing a volatile liquid. The dispenser (100) includes a top housing (102) and a bottom housing (104). The top housing (102) includes a plurality of snap-fit locks (202), and the bottom housing (104) includes a plurality of grooves (302). The plurality of snap-fit locks (202) engages with the plurality of grooves (302) to lock the top housing (102) with the bottom housing (104). The bottom housing (104) further includes one or more press-fit members (304) for locking a bottle (402) filled with the volatile liquid in the bottle holding region (114) of the bottom housing (104). The dispenser (100) includes a heating unit (204) for vaporizing the volatile liquid. The heating unit (204) comprises a single heater which remains in contact with a wick of the bottle (402) to realize vaporization of the volatile liquid.
[[To be published with FIG. 1]]