WO2003064314A1

WO2003064314A1 - Water dispenser

Info

Publication number: WO2003064314A1
Application number: PCT/KR2002/000147
Authority: WO
Inventors: Jeremy Ben-David
Original assignee: Waterlogic Manufacturing Co., Ltd.
Priority date: 2002-02-01
Filing date: 2002-02-01
Publication date: 2003-08-07
Also published as: IL153384A0; EP1503952A4; EP1503952A1

Abstract

The present invention relates to a water dispenser. The water dispenser comprises water supply conduit that is connected with water source, a first and a second tanks that store water supplied from the water supply conduit, a CO2 tank, sparkling water tank, cooling pipe that winds the first tank, the second tank and the CO2 tank, water outlet means, a first water outlet conduit that extends to the water outlet means from the second tank, and a second water outlet conduit that extends to the water outlet means from the second tank. The CO2 tank is disposed near at least one of the first tank and the second tank. According to the present invention, the amount of water that can be supplied increases and the cooling effectiveness of the CO2 tank also improves.

Description

[DESCRIPTION]

[TITLE OF THE INVENTION]

Water Dispenser

[TECHNICAL FILED]

The present invention relates to a water dispenser that is used being connected to

a means for supplying edible water such as a tap and that discharges hot water and cold

water. In particular, the present invention is directed to a water dispenser that can supply

sparkling cold water as well as hot water and cold water.

[BACKGROUND OF THE INVENTION]

A person usually drinks purified tap water in home and workplace, or drinks

natural water contained in a bottle to be mounted in a water dispenser, since the tap water

has been contaminated recently. A filter is not necessary in the water dispenser where

the natural water bottle is mounted. However, the bottled natural water may be

contaminated, if the source of the natural water is not properly maintained. Further, it

costs too much to purchase the bottled natural water. In order to resolve these problems,

popularized is a water dispenser that purifies tap water to supply the purified water.

Generally, the water dispenser comprises a filter for filtering tap water, a hot water tank

where the heated filtered water is contained, and a cold water tank where the cooled

filtered water is contained. The water dispenser that supplies sparkling water is

popularized in Europe and USA. The water dispenser may include a sterilizer for

sterilizing water that would contain bacteria.

The cold water tank of the conventional water dispenser is single and thus the

containing capacity is small. The size of the cold water tank increases as the containing capacity increases. However, such a large cold water tank accompanies difficulty of

sterilization. The conventional sparkling water tank is provided within a cold water tank.

Alternatively, the sparkling water may be made in a mixer that is provided in the outlet

pipe extending from a cold water tank. The mixer mixes cold water and carbon dioxide

to make sparkling water and discharges the sparkling water. The sparkling water tank of

the former structure is inevitably small. It is difficult that the latter structure supplies

sparkling water with uniform carbon dioxide amount and stably supplies a large amount

of sparkling water at a time.

The object of the present invention is to provide a water dispenser that

effectively supplies a large amount of cold water and effectively sterilizes the water.

The other object of the present invention is to provide a water dispenser that can

effectively supply a large amount of sparkling water at a time.

[SUMMARY OF THE INVENTION]

The water dispenser of the first aspect of the present invention comprises a water

supplying pipe connected to a water source, a first tank and a second tank for containing

water supplied through the water supplying pipe, a CO₂ tank for containing CO₂, a

sparkling water tank, a refrigerant- flowing pipe which winds around the first and second

tanks and the sparkling water tank and where refrigerant flows, a water discharging means,

a first water flowing means extending to the water discharging means from at least one of

the first and second tanks, and a second water flowing means extending to said water

discharging means from said sparkling water tank.

The sparkling water tank is disposed near at least one of the first and second

tanks and receives CO₂ from the CO₂ tank and water from at least one of the first and second tanks. The sparkling water tank also contains sparkling water made by mixing of

the CO₂ and the water.

The water dispenser of the first aspect of the present invention has two tanks, and

thus can supply much water compared to the conventional water dispenser having one

tank. Further, since the sparkling water tank is disposed near at least one of the first and

second tanks and since the refrigerant-flowing pipe winds around the first and second

tanks and the sparkling water tank, it is possible to directly cool sparkling water and

thereby improving cooling effect.

The water dispenser of the second aspect of the present invention is a water

dispenser of the first aspect which further comprises a third tank for containing water

supplied from the water supplying pipe and having heating means for heating the water

contained in the third tank, and a third water flowing means extending to the water

discharging means from the third tank.

The third tank acts as a role of hot water tank for containing hot water. It is

preferred that the heating means heats water electrically. The location of the heating

means is not restricted if it is disposed so as to heat the contained water.

The water dispenser of the third aspect of the present invention is a water

dispenser of the first or second aspect, wherein a sterilizing means is provided in at least

one of the first tank, second tank and sparkling water tank. The sterilizing means acts as

a role of sterilizing water that would contain bacteria.

The water dispenser of the fourth aspect of the present invention is a water

dispenser of the third aspect, wherein the sterilizing means is an ultraviolet rays lamp.

The water dispenser of the fifth aspect of the present invention is a water dispenser of the first or second aspect, wherein a filter is provided in the water supplying

pipe. The filter filters the water to remove heavy metal or impurities that would be

contained in the water.

The water dispenser of the sixth aspect of the present invention is a water

dispenser of the first or second aspect, wherein the sparkling water tank is disposed

adjacent to the top of at least one of said first tank and second tanks.

The water dispenser of the seventh aspect of the present invention is a water

dispenser of the first or second aspect, wherein the second tank is connected to the first

tank by a pipe and is disposed so as to receive water from the water supplying pipe via the

first tank.

The water dispenser of the eighth aspect of the present invention comprises, a

water supplying pipe connected to a water source, a first tank and a second tank for

containing water supplied through the water supplying pipe, a CO₂ tank containing CO₂, a

sparkling water tank for containing sparkling water, a first refrigerant- flowing pipe which

winds around the first tank, a second refrigerant- flowing pipe which winds around the

second tanks, separating to the first refrigerant- flowing pipe, a water discharging means, a

first water flowing means which extends to the water discharging means from at least one

of the first and second tanks, a second water flowing means which extends to the water

discharging means from the sparkling water tank.

The sparkling water tank is disposed near at least one of the first and second

tanks and receives CO₂ from the CO₂ tank and water from at least one of the first and

second tanks to produce sparkling water by mixing of the CO₂ and the water.

At least one of the first refrigerant-flowing pipe and the second refrigerant- flowing pipe winds around the sparkling water tank.

The water dispenser of the eighth aspect differs from the water dispenser of the

first aspect in that the water contained in the first tank and the water contained in the

second tank is the separate refrigerant-flowing pipes, respectively. In this way, the

degree of freedom of cooling increases.

The water dispenser of the ninth aspect of the present invention comprises a

water supplying pipe connected to a water source, a first tank for containing water

supplied through the water supplying pipe, a CO₂ tank for containing CO₂, a second tank

which is disposed near the first, receives CO from the CO₂ tank and water from at least

one of the first tank and the water source, and contains sparkling water made by mixing of

the CO₂ and the water, a refrigerant-flowing pipe which winds around the first and second

tanks, a water discharging means, a first water flowing means which extends to the water

discharging means from the first tank; and a second water flowing means which extends

to the water discharging means from the second tank.

The water dispenser of the ninth aspect differs from the water dispenser of the

first aspect and the second aspect in that the tank that contains water other than sparkling

water is single. In the water dispenser of the ninth aspect, direct cooling is possible

since the refrigerant-flowing pipe directly winds around the sparkling water tank and

thereby improving cooling effect.

The water dispenser of the tenth aspect of the present invention is a water

dispenser of the ninth aspect which further comprises a third tank for containing water

contained in the third tank, and third water flowing means extending to the water discharging means from the third tank.

In this water dispenser, the third tank acts as a role of a hot water tank for

containing hot water.

[BRIEF DESCRIPTION OF THE DRAWINGS]

Fig. 1 shows the pipe structure of the water dispenser of the present invention.

Fig. 2 shows the pipe structure of the water dispenser that can supply sparkling

water, which is modified from the water dispenser of Fig. 1.

Fig. 3 shows the pipe structure of the water dispenser according to another

embodiment of the present invention.

Fig. 4 shows a schematic cross-sectional view of a sparkling water tank and a

cold water tank.

< Description of Important Reference Numerals of the Drawings>

100: first cold water tank

101a, 101b: filter

103: condenser

104: compressor

105: water supplying pipe

106: water discharging means

110: hot water tank

115: heating means

130: refrigerant- flowing pipe

131 : purifying device

150: second cold water tank 155: ultraviolet rays lamp

156: cold water pipe

200: sparkling water tank

210: pump

230: check valve

250: CO₂ tank

280: sparkling water supplying pipe

[BEST MODE FOR CARRYING OUT THE INVENTION]

The embodiment of the present invention will be described in the following with

reference to the drawings.

Fig. 1 shows a pipe structure of the water dispenser according to the present

invention. As shown in Fig. 1, the water dispenser comprises a first cold water tank

(100), a second cold water tank (150), a hot water tank (110), filters (101a, 101b), a

condenser (103), a compressor (104), water supplying pipe (105), and water discharging

means (106). Although Fig. 1 shows that two filters are provided, more or less filters

can be provided, depending on the needs. It is preferable that filters (101a, 101b) are

provided so that they are exchanged in a predetermined period.

One end of water supplying pipe (105) is connected to a tap (107) that discharges

tap water. The other end of water supplying pipe (105) is connected to a filter and thus

the discharged water from the tap is supplied to filters (101a, 101b). As shown in Fig. 1,

the other end of water supplying pipe (105) is connected to upstream filter (101a). The

purified water through the filters flows toward valve (108). Valve (108) may be a

solenoid valve. The pipe that extends to valves (108a, 108b) from filter (101a, 101b) diverges into two branches, which are connected to two valves (108a, 108b), respectively.

As shown in Fig. 1, first valve (108a) is provided in the pipe that extends to hot water

tank (110) from filter (101b), and regulates the water supply to hot water tank (110).

Second valve (108b) is provided in the pipe that extends to first cold water tank (100)

from filter (101b) and regulates water supply to first cold water tank (100). First valve

(108a) and second valve (108b) are controlled by a central processing unit (not shown).

Heating means (115) is provided within hot water tank (110). The heating

means heats the water contained in hot water tank (110). In Fig. 1, heating means (115)

is provided in the bottom of hot water tank (110). However, the location of the heating

means is not limited to such a location. Heating means (115) electrically heats the water

contained in hot water tank (110). The temperature of the water in hot water tank (110)

can be adjusted by a user or can be set to a fixed value when the water dispenser is

manufactured. According to the preferred embodiment of the present invention, an

insulating material (not shown) is provided around hot water tank (110). Hot water

flowing means ( 111 ) is provided in hot water tank (110). The hot water discharging

means discharges hot water according to the user operation.

The cold water tank of the water dispenser of the present invention comprises a

first cold water tank (100) and a second cold water tank (150). As shown in Fig. 1, the

purified water which exits from filters (101a, 101b) is supplied to first cold water tank

(100) via second valve (108b). First cold water tank (100) and second cold water tank

(150) are connected to each other by connecting pipe (120). A refrigerant-flowing pipe

(130) winds around first cold water tank (100) and second cold water tank (150) to cool

the water contained in the cold water tanks to a predetermined temperature. The predetermined temperature can be adjusted by a user or can be set to a fixed value when

the water dispenser is manufactured. According to a preferred embodiment of the

present invention, a sterilizing means for sterilizing water contained in the cold water tank

is provided within second cold water tank (150). The sterilizing means can be provided

within first cold water tank (100). According to a preferred embodiment of the present

invention, an ultraviolet rays lamp (155) is used as the sterilizing means. However, the

sterilizing means can include other one if it has sterilizing function. Ultraviolet rays

lamp (155) is a cylindrical lamp and extends nearly to the bottom of second cold water

tank (150) from upper center portion of the tank. Second cold water tank (150) is

provided with cold water flowing pipe (151) that supplies cold water to water discharging

pipe (106).

Refrigerant circulates in refrigerant-flowing pipe (130) along general vapor

compression refrigeration cycle. As shown in Fig. 1, the refrigerant circulates around

second cold water tank (150) and first cold water tank (100) in turn via compressor (104),

condenser (103) and purifying device (131), and thereafter, cools water contained in the

cold water tanks. The refrigerants flows to compressor (104), thereafter. As shown in

Fig. 1, refrigerant-flowing pipe (130) extends from purifying device (131) and winds

around second cold water tank (150). Refrigerant-flowing pipe (130) extends to first

cold water tank (100) from the second cold water tank side and winds around first cold

water tank (100) in a predetermined length. Refrigerant-flowing pipe (130) extends to

compressor (104) from first cold water tank (100). Refrigerant-flowing pipe (130)

extends to condenser (103) from compressor (104) and extends to purifying device (131)

from the condenser. It is preferred that a fan (132) for cooling the refrigerant which passes condenser (103) is provided near condenser (103).

According to another embodiment of the present invention, refrigerant-flowing

pipe (130) winds around first cold water tank (100) and thereafter winds around second

cold water tank (150).

Hot water tank (110) and second cold water tank (150) can be provided with an

air-exhausting tube (170). Alternatively, air-exhausting tube (170) may be connected to

hot water tank (110) and first cold water tank (100).

The above-mentioned structure having two cold water tanks can contain much

cold water compared to the structure having one cold water tank.

The water contained in first cold water tank (100) and second cold water tank

(150) is cooled by one refiigerant- flowing pipe (130). However, according to the other

embodiment of the present invention, a refrigerant-flowing pipe winds around first cold

water tank (100) and the other refrigerant-flowing pipe winds around second cold water

tank (150), wherein the two pipes cool the water contained in the first cold water tank and

the second cold water tank, respectively.

Fig. 2 shows a pipe diagram of the water dispenser of the present invention that

is adapted to supply sparkling water. The same elements as those in Fig. 1 are indicated

by the same reference numerals and the explanation to the elements is omitted.

The water dispenser of Fig. 2 differs from that of Fig. 1 in that a sparkling water

tank (200) is provided over second cold water tank (150). The lower part of sparkling

water tank (200) contacts with the upper part of second cold water tank (150). The

sparkling water tank may be formed as being a separate tank to second cold water tank

(150). Alternatively, one tank is separated into two parts by wall, wherein one part is a sparkling water tank and the other part is a second cold water tank. Sparkling water tank

(200) can be provided in other locations such as under second cold water tank (150), other

than the location over second cold water tank (150).

As shown in Fig. 2, the water dispenser of the present embodiment includes CO₂

tank (250) for containing CO₂. CO₂ supplying pipe (260) which is connected to CO₂

tank (250) extends to sparkling water tank (200). It is preferred that a check valve (270)

for preventing backward flow is provided in CO₂ supplying pipe (260).

Cold water pipe (156) is connected to an outlet port of second cold water tank

(150). Cold water pipe (156) extends to a pump (210) from the outlet port of second

cold water tank (150). Cold water pipe (156) diverges to extend to water discharging

means (106). A valve (109b) is provided in water discharging means (106) and

regulates outlet of cold water. It is preferred that valve (109b) is a solenoid valve.

Cold water supplying pipe (221) extends to sparkling water tank (200) from pump (210).

Cold water supplying pipe (221) is provided with a valve (220) for regulating cold water

supply and is provided with a check valve (230) for preventing backward flow of the cold

water.

The refrigeration cycle of the water dispenser shown in Fig. 2 is also general

vapor compression refrigeration cycle as the water dispenser shown in Fig. 1. The

refrigerant that flows in refrigerant-flowing pipe (130) circulates along the almost same

path as the embodiment shown in Fig. 1. However, in this embodiment, refrigerant-

flowing pipe (130) winds around second cold water tank (150) and around sparkling

water tank (200) to cools the water contained in second cold water tank (150) and

sparkling water tank (200). As shown in Fig. 2, refrigerant- flowing pipe (130)

V I extending from purifying device (131) winds around sparkling water tank (200) and

thereafter, extends to first cold water tank (100). The refrigerant- flowing pipe winds

around first cold water tank (100) and extends to compressor (104). In this way, the

refrigerant-flowing pipe extends according to the refrigeration cycle that is explained

relating to the embodiment of Fig. 1.

According to other embodiment, the water dispenser shown in Fig. 2 may have

two refrigerant-flowing pipes for separately cooling the water contained in second cold

water tank (150) and sparkling water tank (200) and the water contained in first cold

water tank (100), without cooling the water by one refrigerant-flowing pipe.

According to another embodiment, the water dispenser may be provided with

one cold water tank, not two cold water tanks.

Fig. 3 shows a pipe diagram of the water dispenser having one cold water tank

according to the present invention. The same elements as the water dispenser shown in

Fig. 2 are referred to by the same reference numerals in Fig. 2.

The water dispenser of Fig. 3 differs from that of Fig. 2 in that only one cold

water tank is provided. Since the cold water tank is single, cold water is directly

supplied to cold water tank (300) from a water supplying pipe. According to the

preferred embodiment of the present invention, a sparkling water tank (200) is provided

over a cold water tank (300). As shown in Fig. 3, cold water tank (300) and sparkling

water tank (200) is separate parts to each other. Alternatively, the tanks can be divided

into two parts by a bordering wall. Refrigerant-flowing pipe (130), as shown in Fig. 3,

starts to wind around cold water tank (300) and thereafter, extends to compressor (104).

Although not shown in Fig. 3, a sterilizing means can be provided in the water dispenser of this embodiment. The sterilizing means can be provided within cold water tank (300)

or sparkling water tank (200).

Fig. 4 shows a schematic cross-sectional view of cold water tank (300) and

sparkling water tank (200). As shown in Fig. 4, refrigerant-flowing pipe (130) winds

around sparkling water tank (200) and cold water tank (300) so that cold water and

sparkling water contained therein is cooled to a predetermined temperature. The pipe

that extends to a water discharging means (106) from sparkling water tank (200) has an

end which is close to the bottom of sparkling tank (200) so that sparkling water contained

in the sparkling water tank can be easily supplied to the pipe, as shown in Fig. 4.

The operation of the water dispenser of the present invention is described in the

following.

Firstly, the operation of the water dispenser shown in Fig. 1 will be described.

The tap water supplied through a water supplying pipe (105) connected to a tap (107) is

filtered by filters (101a, 101b). The filtered water flows to a pipe extending to hot water

tank (110) and a pipe extending to first cold water tank (100). The flow of the water is

regulated by valves (108a, 108b) that are provided in the pipes. Valves (108a, 108b) are

controlled by a central processing unit (not shown). The tap water supplied to first cold

water tank (100) is supplied to second cold water tank (150) again through the pipe

connected to the bottom of first cold water tank (100).

The water supplied to hot water tank (110) is heated by heating means (115)

provided within hot water tank (110). The water contained in cold water tanks (100,

150) is cooled by refrigerant-flowing pipe (130) where refrigerant flows and winds

around cold water tanks (100, 150). The water contained in second cold water tank (150) is sterilized by sterilizing means (155) provided within second cold water tank

(150).

The hot water contained in hot water tank (110) is discharged through hot water

flowing means (111) so that a user can drink it. The water contained in cold water tank

(150) is discharged through water discharging means via cold water flowing pipe (151) so

that a user can drink it.

Next, the operation of the water dispenser shown in Fig. 2 will be described.

As the water dispenser shown in Fig. 1 , the tap water inflowing through water

supplying pipe connected to tap (107) is supplied to hot water tank (110) and first cold

water tank (100) via filter (101) and valves (108a, 108b). The water contained in hot

water tank (110) is heated to a predetermined temperature by heating means (115). The

water contained in first cold water tank (100) is supplied again to second cold water tank

(150) through connecting pipe (120) and the water contained in second cold water tank

(150) is supplied again to sparkling water tank (150). Second cold water tank (150) is

cooled to a predetermined temperature by refrigerant-flowing pipe (130) winding around

second cold water tank (150). Pump (210) operates to supply the water contained in

second cold water tank (150) to sparkling water tank (200). Check valve (230) prevents

the water from flowing backward. CO₂ is supplied to sparkling water tank (200) from

CO₂ tank (200) so as to produce sparkling water by mixing with the water contained in

the sparkling water tank. The produced sparkling water is cooled to a predetermined

temperature by refrigerant-flowing pipe (130) winding around sparkling water tank (200).

The sparkling water contained in the sparkling water tank is discharged through a

sparkling water discharging means (280) by user's operation so that the user can drink it. In the following, the operation of the water dispenser shown in Figs. 3 and 4 will

be described. The operation of the water dispenser is almost same as the operation of

the water dispenser shown in Fig. 2.

The tap water that inflows through water supplying pipe (105) connected to a tap

(107) is supplied to hot water tank (110) and cold water tank (300) via filter (101) and

valves (108a, 108b). The water contained in hot water tank (110) is heated to a

predetermined temperature by heating means (115). The water contained in cold water

tank (300) is supplied to water discharging means (106) and sparkling water tank (200).

If sparkling water tank (200) is disposed over cold water tank (300) as shown in Fig. 3,

pump (210) supplies water to sparkling water tank (200). CO₂ is supplied to sparkling

water tank (200) from CO₂ tank (200) through CO₂ supplying pipe (260). CO₂ is mixed

with the water contained in the sparkling water tank, thereby producing sparkling water as

shown in Fig. 4. The sparkling water flows to water discharging means (106) via

sparkling water supplying pipe (295). The sparkling water contained in sparkling water

tank (200) and the water contained in cold water tank (300) is cooled by refrigerant-

flowing pipe (130) winding around sparkling water tank (200) and cold water tank (300).

According to the present invention, much cold water can be supplied at once

since two cold water tanks, i. e., first cold water tank (100) and second cold water tank

(150) are provided in a water dispenser. Further, since the water contained in the cold

water tanks is directly cooled by refrigerant-flowing pipe (130), much water can be

cooled than single cold water tank is used and refrigerating effect is also excellent.

In addition, sparkling water tank (200) is provided in a position such as over

second cold water tank (150), not being provided within a cold water tank nor being provided as a small-sized one, while a refrigerant-flowing pipe for cooling the water

contained in the cold water tank extends so as to wind around the sparkling water tank.

Thus, cooling effect for the sparkling water tank is improved.

[INDUSTRIAL APPLICABILITY]

The water dispenser of the present invention can be used in a home or office,

with being connected to a water supplying means such as a tap.

Claims

[CLAIMS]

1. A water dispenser comprising:

a water supplying pipe connected to a water source;

a first tank and a second tank for containing water supplied through said water

supplying pipe;

a CO₂ tank for containing CO₂;

a sparkling water tank disposed near at least one of said first and second tanks,

said sparkling water tank receiving CO₂ from said CO₂ tank and water from at least one of

said first and second tanks and containing sparkling water made by mixing of said CO₂

and said water;

a refrigerant-flowing pipe winding around said first and second tanks and said

sparkling water tank, said refrigerant-flowing pipe having refrigerant flowing therewithin;

a water discharging means;

a first water flowing means extending to said water discharging means from at

least one of said first and second tanks; and

a second water flowing means extending to said water discharging means from

said sparkling water tank.

2. The water dispenser of Claim 1 , further comprising a third tank for containing

water supplied from said water supplying pipe and having heating means for heating the

water contained in said third tank, and a third water flowing means extending to said

water discharging means from said third tank.

3. The water dispenser of Claim 1 or 2, wherein a sterilizing means is provided in

at least one of said first tank, second tank and sparkling water tank.

4. The water dispenser of Claim 3, wherein said sterilizing means is an ultraviolet

rays lamp.

5. The water dispenser of Claim 1 or 2, wherein a filter is provided in said water

supplying pipe.

6. The water dispenser of Claim 1 or 2, wherein said sparkling water tank is

disposed adjacent to the top of at least one of said first tank and second tanks.

7. The water dispenser of Claim 1 or 2, wherein said second tank is connected to

said first tank by a pipe and is disposed so as to receive water from said water supplying

pipe via said first tank.

8. A water dispenser comprising:

a water supplying pipe connected to a water source;

a first tank and a second tank for containing water supplied through said water

supplying pipe;

a CO₂ tank containing CO₂;

said sparkling water tank receiving CO from said CO₂ tank and water from at least one of said first and second tanks and containing sparkling water made by mixing of said CO₂

and said water;

a first refrigerant-flowing pipe winding around said first tank;

a second refiigerant-flowing pipe winding around said second tanks, separating

to said first refrigerant-flowing pipe;

a water discharging means;

a first water flowing means extending to said water discharging means from at

least one of said first and second tanks;

a second water flowing means extending to said water discharging means from

said sparkling water tank; and

wherein at least one of said first refiigerant-flowing pipe and said second

refrigerant- flowing pipe winds around said sparkling water tank.

9. A water dispenser comprising:

a water supplying pipe connected to a water source;

a first tank for containing water supplied through said water supplying pipe;

a CO₂ tank containing CO₂;

a second tank disposed near said first, said second tank receiving CO₂ from said

CO₂ tank and water from at least one of said first water tank and said water source and

containing sparkling water made by mixing of said CO₂ and said water;

a refrigerant-flowing pipe winding around said first and second tanks, said

refiigerant-flowing pipe having refrigerant flowing therewithin;

a water discharging means; a first water flowing means extending to said water discharging means from said

first tank; and

a second water flowing means extending to said water discharging means from

said second tank.

10. The water dispenser of Claim 9, further comprising a third tank for containing

water contained in said third tank, and third water flowing means extending to said water

discharging means from said third tank.