KR20150002961U - A connector for water purifiers cartridge filter - Google Patents

A connector for water purifiers cartridge filter Download PDF

Info

Publication number
KR20150002961U
KR20150002961U KR2020140000526U KR20140000526U KR20150002961U KR 20150002961 U KR20150002961 U KR 20150002961U KR 2020140000526 U KR2020140000526 U KR 2020140000526U KR 20140000526 U KR20140000526 U KR 20140000526U KR 20150002961 U KR20150002961 U KR 20150002961U
Authority
KR
South Korea
Prior art keywords
water
filter
inlet pipe
water filter
connector
Prior art date
Application number
KR2020140000526U
Other languages
Korean (ko)
Inventor
신용성
Original Assignee
(주)현대 와코텍
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by (주)현대 와코텍 filed Critical (주)현대 와코텍
Priority to KR2020140000526U priority Critical patent/KR20150002961U/en
Publication of KR20150002961U publication Critical patent/KR20150002961U/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/30—Filter housing constructions
    • B01D35/306—Filter mounting adapter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention relates to a connector for a water filter, and more particularly, to a connector for a water filter that facilitates detachment and attachment to and detachment from a water filter, and simplifies the structure and extends the ease of manufacture and the mechanical life.
The water filter includes a water inlet pipe for guiding raw water to the raw water inflow hole of the water filter, and a water inlet pipe for guiding the raw water to the water inlet pipe of the water filter, A water outlet pipe for guiding purified water discharged through the water discharge hole is formed and a plurality of catching jaws are formed on an inner circumferential surface of the water outlet pipe, the water outlet pipe is connected to the catching jaw of the body, A flow path corresponding to the flow path of the water inlet pipe and the flow path of the water outlet pipe is formed to extend downward through the respective elongated holes, And a rotary plate formed with an inlet pipe inserted into a raw water inlet hole and a purified water outlet hole of the water filter, A connector for a water filter is provided which can correspond to a water inlet pipe and a water outlet pipe while moving the insertion pipe.

Description

[0001] The present invention relates to a connector for a water filter,

The present invention relates to a connector for a water filter, and more particularly, to a connector for a water filter which facilitates replacement work of a water filter and simplifies the construction and facilitates manufacture.

As is well known, a water purifier is connected to a domestic water supply system and is a device for purifying water through a physical or chemical process, and is popularized in a home or workplace.

This type of water purifier is classified into direct type which is directly connected to the faucet, and storage type which allows the water to pass through the filter in a container. When classified according to the water purification type and the water purification type, natural filtration type, direct filtration type, ion exchange type, , And reverse osmosis.

In this way, various types of water purifiers and the principle of water purification are classified by the installed filters. As the water purification filter is a consumable product, it needs to be changed after a certain period of time as the water purification ability is lowered.

However, in the conventional filter cartridge, as shown in FIG. 1, a separate fitting 2 is connected to a water inlet formed in the upper portion of the filter cartridge 1, and then a water inlet pipe is connected to the filter cartridge 1 In order to replace the filter cartridge after a predetermined period of time, there has been a troublesome problem in that the filter cartridge has to be replaced after the fitting is detached using a separate tool nipple.

In addition, in order to prevent leakage of tap water when replacing the filter cartridge (1), it is necessary to perform the replacement operation after operating the opening / closing valve provided at a proper position of the water pipe to the closed position. Therefore, There was a troublesome problem to be operated.

That is, in the operation of replacing the filter cartridge 1 having the above-described configuration, ordinary consumers are in fact too difficult to replace the filter cartridges 1 at a separate cost to the experts.

In order to solve such a problem, a filter cartridge 1 is provided in which a user can easily replace the filter cartridge 1 even if the user is a non-expert.

This will be briefly described with reference to FIG. 2 attached hereto.

2, the filter cartridge includes a head 30 composed of a raw water inflow portion 10 composed of an inlet port and a guide passage, a raw water discharge portion 20 composed of an outlet port and a passage, And a water filter (40) for filtering the raw water that is introduced and connected to the water filter (40). The guide passage is provided with a fluid shutoff valve A knob 60 having a connection passage for selectively controlling the flow of fluid flowing through the guide passage into the water filter 40, (70), and when the filter cartridge is exchanged, the user rotates the opening closure (70) to control the flow of the raw water flowing into the water filter (40), whereby the raw water is selectively Outlet port or water filter 40 do.

However, the filter cartridge having the fluid stopper 50 including the spring S also has the following problems.

There has been a problem that the corrosion and elasticity due to the long use of the spring S are reduced and the mechanical life is not maintained for a long time.

That is, since the elastic force of the spring S is loosened, it may cause a leakage problem or the like, which makes it difficult to increase the satisfaction of the consumer and also leads to an increase in the replacement cost due to a decrease in the mechanical life.

In addition, there is a problem in that the manufacturing process is increased due to the complicated configuration, and the manufacturing cost is increased, resulting in poor economical efficiency.

Korea Public No. 10-2010-0119621 Korea Registration No. 10-0505861

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to facilitate the replacement operation of the filter cartridge for a water purifier and to open and close the flow path of the raw water into the water filter, And to provide a connector for a water filter.

According to an aspect of the present invention, there is provided a connector for a water filter in which a water filter including a raw water inflow hole into which raw water flows and a purified water discharge hole through which purified water is discharged is detachably attached, And a water outlet pipe for guiding purified water discharged through the water discharge hole is formed on the inner circumferential surface of the body, a plurality of catching jaws formed on an inner circumferential surface of the body, And a pair of elongated holes formed in the upper surface of the fixed plate and extending downward through the elongated holes, respectively, the flow path of the water inlet pipe and the water outlet pipe And a rotary plate formed with a flow path corresponding to the flow path and formed with an insertion tube inserted into the raw water inflow hole and the purified water discharge hole of the water filter, A connector for a water filter is provided which can correspond to a water inlet pipe and a water outlet pipe while moving the insertion pipe along the slot by rotation of the filter.

At this time, an o-ring is interposed between the rotating plate and the upper surface, and the O-ring includes a large circular portion which is closely attached to the edge of the upper surface, a central circular portion formed at the center of the large circular portion, And a sealing part of the sealing part.

A plurality of locking protrusions are formed on the circumferential surface of the fixing plate. The locking protrusion includes an insertion groove portion into which the locking protrusion is inserted and guided, and a locking groove portion in which the locking protrusion guided by the rotation of the fixing plate is guided by the insertion groove portion, .

In addition, detachable protrusions are formed on both sides of the upper end of the water filter, an inclined surface on the inner surface of the body to guide the detachment protrusion to the inside of the body by rotation of the water filter, It is preferable that the separation preventing jaw is formed.

The connector for a water filter according to the present invention has the following effects.

First, since the water filter can be easily coupled to or separated from the connector through the rotation of the water filter, convenience for replacing the water filter can be improved.

That is, when the water filter is rotated, the detachment protrusion is naturally coupled to the detachment prevention pin of the connector body along the inclined surface of the connector body, so that the water filter can be easily detached and attached to the connector.

Secondly, the structure is simplified and the spring is omitted, so that the mechanical life of the connector can be increased.

As a result, the maintenance cost of the filter cartridge can be reduced.

1 is a perspective view showing a main portion of a filter cartridge according to the prior art;
2 is an exploded cross-sectional view of a filter cartridge according to the prior art;
3 is an exploded perspective view showing a connector for a water filter according to a preferred embodiment of the present invention;
4 is a cross-sectional view showing a connector for a water filter according to a preferred embodiment of the present invention
5A is a perspective view showing a rotating plate and a fixing plate when the water filter and the water inlet and outlet pipes are closed in the water filter connector according to the preferred embodiment of the present invention;
FIG. 5B is a perspective view showing a rotating plate and a fixing plate when the water filter and the water pipe are connected to the water filter connector according to the preferred embodiment of the present invention,
6A is a bottom view schematically showing a state in which the water filter and the water pipe are closed by rotating the water filter in the water filter connector according to the preferred embodiment of the present invention
FIG. 6B is a bottom view schematically showing a state in which a water filter and a water filter are connected to a connector for a water filter according to a preferred embodiment of the present invention,
7 is a side view showing a state in which a water filter is coupled to a connector for a water filter according to a preferred embodiment of the present invention;

It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to best describe its own design in the best way It should be construed as meaning and concept consistent with the technical idea of the invention.

Hereinafter, a connector for a water filter according to a preferred embodiment of the present invention will be described with reference to Figs. 3 to 7 attached hereto.

The water filter connector has a technical feature that the water filter 80 can be easily and easily removed.

That is, since the water filter 80 can be detached from the connector only by the rotation of the water filter 80, and the water and the flow path can be closed, it is not necessary to have high proficiency in the filter replacement work.

A water filter connector (hereinafter, referred to as 'connector') for this purpose includes a body 100, a fixing plate 200, a rotary plate 300, and an O-ring 400.

The body 100 constitutes an outer appearance of the connector, and a predetermined space is formed on the inner side so that the upper end of the water filter can be coupled.

The body 100 is also formed in a circular shape due to the cylindrical nature of the water filter 80.

3, a water inlet pipe 110 and a water outlet pipe 120 are formed in the body 100, respectively.

The water inlet pipe 110 serves to guide the raw water or purified water to the raw water inlet hole 81 of the water filter 80 and the water outlet pipe 120 to discharge the water outlet hole 82 from the water filter 80 And serves to guide purified water through a neighboring water filter or outside.

The water inlet pipe 110 and the water outlet pipe 120 are formed on the upper portion of the body 100 and form flow passages 111 and 121 communicating with the inside of the body 100.

A coupling hole 130 for coupling the fixing plate 200 is formed at an upper center of the body 100.

A locking protrusion 140 is formed on the inner circumferential surface of the body 100.

The stopping jaw 140 is configured to be coupled to the inside of the body 100 and is formed in plural along the inner circumferential surface of the body 100.

Preferably, the latching jaw 140 includes an insertion groove 141 and a latching groove 142.

The insertion groove portion 141 has a configuration for guiding a latching protrusion of a fixing plate 200, which will be described later, to the latching groove portion 142, and is opened at one side so that the latching protrusion can be naturally guided.

The locking groove portion 142 is integrally formed at one side of the insertion groove portion 141 so that the locking protrusion can be moved from the insertion groove portion 141 through the rotation of the fixing plate 200 to form a step.

At this time, the height of the engagement groove portion 142 corresponds to the height of the engagement projection.

The inclined surface 150 and the separation preventing jaw 160 are formed on the inner peripheral surface of the lower end of the body 100.

The inclined surface 150 functions to allow the detachment protrusion 83 of the water filter 80 to be naturally guided to the separation preventing jaw 160 by the rotation of the water filter 80, As shown in FIG.

The separation preventing jaw 160 restricts the detachment of the detachment protrusion 83 of the water filter 80 downward and extends from the end of the inclined surface 150 along the inner circumferential surface of the body 100 to form a step do.

A plurality of O-ring grooves 170 are formed on the top surface of the body 100 on which the water inlet pipe 110 and the water outlet pipe 120 are formed.

The O-ring groove 170 is a portion where the O-ring is disposed, and is preferably a height lower than a thickness of the O-ring.

Next, the fixing plate 200 supports the rotation plate 300 so that the rotation plate 300 can be rotated. The fixing plate 200 is engaged with the engagement protrusion 140 of the body 100.

The fixing plate 200 is formed of a circular plate corresponding to the inner diameter of the body 100 and a circumferential surface of the fixing plate 200 is formed with a locking protrusion 210 engaged with the locking protrusion 140.

At the center of the top surface of the fixing plate 200, a fixing hook 220 formed upward is formed.

The fixing hook 220 is configured to engage the fixing plate 200 with the body 100.

On both sides of the fixing plate 200, elongated holes 230 are formed.

The elongated hole 230 is formed to penetrate the fixing plate 200 in the upward and downward directions and guides the movement of the insertion tube of the rotation plate 300, which will be described later.

At this time, the long hole 230 is rounded to correspond to the turning radius of the rotating plate 300.

The position of the long hole 230 corresponds to the flow path of the water inlet pipe 110 formed in the body 100 and the flow path of the water outlet pipe 120.

The rotating plate 300 is interposed between an upper surface formed with the flow path 111 of the inlet pipe 110 and the flow path 121 of the outlet pipe 120 and the fixed plate 200 of the body 100, And serves to pass or block the flow path 121 of the flow path 111 and the water outlet pipe 120 to the raw water inflow hole 81 and the purified water discharge hole 82 of the water filter 80.

The rotary plate 300 is also formed as a circular plate corresponding to the inner diameter of the body 100 and is seated on the upper surface of the fixing plate 200.

On both sides of the rotary plate 300, an insertion tube 310 extending downward is formed.

The insertion tube 310 is formed to be inserted into the raw water inflow hole 81 and the purified water discharge hole 82 of the water filter 80 and forms a flow path 311 communicating with the interior of the water filter 80.

The insertion tube 310 is disposed below the fixing plate 200 through the elongated hole 230 of the fixing plate 200 and is moved along the elongated hole 230 when the rotation plate 300 is rotated.

Next, the O-ring 400 serves to prevent leakage of the water inlet pipe 110 and the water outlet pipe 120, and is interposed between the rotary plate 300 and the upper surface of the body 100.

At this time, the O-ring 400 is inserted into the O-ring groove 170 formed on the upper surface of the body 100 to prevent the flow.

3, the O-ring 400 includes a large circular portion 410 corresponding to the inner diameter of the upper surface, a central circular portion 420 formed at the center of the large circular portion 410, a central circular portion 420, And a plurality of sealing rings 430 connected between the sealing rings 410.

The large circular portion 410 serves to maintain the entire airtightness between the inside of the body 100 through which the water flows and the rotary plate 300. The central circular portion 420 is formed between the fixed hook 220 and the coupling hole 130 To maintain the airtightness of the gap.

The sealing circular portion 430 serves not only to maintain the airtightness in the flow path of the water inlet pipe 110 and the flow paths 111 and 121 of the water outlet pipe 120 and the flow path 311 of the insertion pipe 310, And serves to reinforce the entire O-ring 400 by connecting between the large circular portion 410 and the central circular portion 420.

The sealing circular portion 430 is formed between the large circular portion 410 and the central circular portion 420 so that the sealing circular portion 430 does not restrict the directionality.

That is, since the O-ring 400 has no front, rear, left, and right directions, coupling of the O-ring 400 to the body 100 is convenient.

Hereinafter, the connection and operation of the connector having the above-described structure will be described.

The O-ring 400 is engaged with the O-ring groove 170 formed on the upper surface of the body 100.

Next, the rotary plate 300 is seated on the upper surface of the fixing plate 200.

At this time, the insertion tube 310 of the rotary plate 300 is disposed below the fixing plate 200 through the slot 230 of the fixing plate 200.

Then, the assembly of the fixed plate 200 and the rotary plate 300 assembled as described above is coupled to the inside of the body 100.

When the insertion tube 300 is inserted into the body 100 with the insertion tube 300 facing downward, the locking protrusion 210 of the locking plate 200 is inserted into the locking protrusion 140 of the locking protrusion 140 And guided along the insertion groove 141.

Then, when the fixing plate 200 is rotated, the fixing plate 200 presses the O-ring 400. Since the latching protrusion 210 of the fixing plate 200 is moved along the latching groove portion 142 and is caught by the step, (100).

5A and 6A, the flow path 311 of the insertion tube 310 is separated from the flow path of the water inlet pipe 110 and the water outlet pipe 120 formed in the body 100, (Surface) is closed by blocking the flow paths 111 and 121 of the water inlet pipe 110 and the water outlet pipe 120.

As a result, water does not leak or leak through the connector.

When the coupling of the neck is completed, the cover 500 is covered on the upper part of the body 100 to shield the water inlet pipe 110 and the water outlet pipe 120 to clean the appearance.

As shown in FIG. 7, the cover 500 is formed with a coupling ring 510, which is opened toward one side. The coupling ring 510 is fitted into a coupling structure provided on the water purifier, Is completed.

Next, the water filter 80 is coupled to the connector thus combined.

At this time, the insertion tube 310 of the rotary plate 300 is inserted into the raw water inflow hole 81 and the purified water discharge hole 82 of the water filter 80, respectively.

Thereafter, when the water filter 80 is rotated to rotate, the detachment protrusions 83 formed on both sides of the upper end of the water filter 80 are naturally guided along the inclined surface 150 toward the separation preventing jaws 160.

At the same time, the insertion tube 310 inserted into the raw water inflow hole 81 and the purified water discharge hole 82 of the water filter 80 is also forced to rotate along the slot 230, Thereby rotating the rotary plate 300 as shown in FIG.

At this time, the flow path 311 of the insertion tube 310 corresponds to the water inlet pipe 110 and the water outlet pipe 120 of the body 100, so that water can pass through.

That is, the water filter can be naturally made at the same time that the water filter 80 is connected to the connector.

Then, the water purification process of the raw water is performed through the water purification filter 80, and when the water purification filter 80 is to be replaced, a series of processes for combining the water purification filter are reversed.

That is, when the water filter 80 is rotated in the opposite direction, the detachment protrusion 83 of the water filter 80 is naturally released to the outside of the body 100 along the inclined surface 150, The flow path 311 of the insertion tube 310 corresponding to the flow path 111 of the water inlet pipe 110 and the flow path 121 of the water outlet pipe 120 is released.

Thereafter, the water filter replacement operation is completed by coupling the new water filter to the connector.

As described so far, the water filter connector according to the present invention facilitates the replacement work of the water filter and omits the structure of the spring or the like, thereby simplifying the construction, making it easy to manufacture and extending the mechanical life of the connector There are technical features.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.

100: body 110: inlet pipe
111: Inlet water inlet pipe 120: Water outlet pipe
121: Water outlet oil line 130: Coupling ball
140: latching jaw 141: insertion groove
142: engaging groove portion 150: inclined surface
160: separation preventing jaw 170: O-ring groove
200: Fixing plate 210:
220: Fixed hook 130: Long hole
300: Rotating plate 310: Insertion tube
311: Inserted oil pipe 400: O-ring
410: large circular portion 420: central circular portion
430: sealing ring 500: cover
510: Coupling ring

Claims (4)

A water filter connector detachably attached to a water filter including a raw water inflow hole into which raw water flows and a purified water discharge hole through which purified water is discharged,
A water inlet pipe for guiding raw water to the raw water inflow hole of the water filter; a water outlet pipe for guiding purified water discharged through the water outlet hole;
A fixing plate coupled to the engagement jaw of the body and having a pair of long holes corresponding to the water inlet pipe and the water outlet pipe, respectively;
A flow path extending from the upper end of the inlet pipe to the flow path of the water inlet pipe and the fixed plate and extending downward through the respective slots, And a spinning plate having an inlet pipe inserted into the inlet hole and the water outlet hole,
And the insertion tube is moved along the slot by rotation of the water filter so that it can correspond to the water inlet pipe and the water outlet pipe. The method according to claim 1,
An o-ring is interposed between the rotating plate and the upper surface,
And a plurality of sealing rings connected between the central circular portion and the large circular portion. The connector for a water filter according to claim 1, wherein the large circular portion is a circular arc portion. 3. The method according to claim 1 or 2,
A plurality of locking projections are formed on the circumferential surface of the fixing plate,
An insertion groove portion into which the locking protrusion is inserted and guided, and a locking groove portion in which the locking protrusion guided by the rotation of the fixing plate is guided and fixed. 3. The method according to claim 1 or 2,
Discharge protrusions are formed on both sides of the upper end of the water filter,
Wherein an inner surface of the body is formed with an inclined surface for guiding the detachment protrusion to the inside of the body by the rotation of the water filter and a detachment preventing jaw for preventing the detachment protrusion from being separated downward.





KR2020140000526U 2014-01-23 2014-01-23 A connector for water purifiers cartridge filter KR20150002961U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020140000526U KR20150002961U (en) 2014-01-23 2014-01-23 A connector for water purifiers cartridge filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020140000526U KR20150002961U (en) 2014-01-23 2014-01-23 A connector for water purifiers cartridge filter

Publications (1)

Publication Number Publication Date
KR20150002961U true KR20150002961U (en) 2015-07-31

Family

ID=53872691

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020140000526U KR20150002961U (en) 2014-01-23 2014-01-23 A connector for water purifiers cartridge filter

Country Status (1)

Country Link
KR (1) KR20150002961U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101712971B1 (en) * 2016-09-28 2017-03-07 (주)씨디씨뉴매틱 Filter connection apparatus for water purifier piping
KR20210046298A (en) * 2019-10-18 2021-04-28 주식회사 에이치앤엔코퍼레이션 Filter assembly for water purifier
KR20220159753A (en) * 2021-05-26 2022-12-05 (주)원봉 Holder assembly for water bottle of water supplying apparatus and water supplying apparatus having the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101712971B1 (en) * 2016-09-28 2017-03-07 (주)씨디씨뉴매틱 Filter connection apparatus for water purifier piping
KR20210046298A (en) * 2019-10-18 2021-04-28 주식회사 에이치앤엔코퍼레이션 Filter assembly for water purifier
KR20220159753A (en) * 2021-05-26 2022-12-05 (주)원봉 Holder assembly for water bottle of water supplying apparatus and water supplying apparatus having the same

Similar Documents

Publication Publication Date Title
KR100804302B1 (en) Connecting structure of filter cartridge for water purifier
US10293287B2 (en) Water filter assembly
KR100712266B1 (en) purification filter of using connector and water purification ddevice
KR101572918B1 (en) Filter Assembly
KR100668767B1 (en) Connector for filter cartridge having shut-off valve, and filter assembly including the same
KR200384558Y1 (en) Attaching mechanism of filter assembly for water purifier
KR100646182B1 (en) Water purification filter assembly
JP2011098345A (en) Filter assembly
KR20130000942A (en) Water filter assembly and refrigerator and water purifier having the same
EP2802399B1 (en) Water purifying filter assembly module and water purifier having the same
KR101148053B1 (en) Filter Assembly for Water Purifier
US20100307964A1 (en) Device for the treatment of water, in particular a filter device, and cartridge
CN104295773B (en) A kind of triple channel quality classification water supply faucet
KR100521116B1 (en) Water purifier filter having a means of fluid interception
KR20150002961U (en) A connector for water purifiers cartridge filter
KR20190029089A (en) Filter head of water purifier
KR100909377B1 (en) Water purifier filter with filter cleaning
KR101480993B1 (en) Head assembly for water purifier filter
KR200296361Y1 (en) Filter assembly for water purifier
KR102052554B1 (en) Filter connector and water purifier including the same
KR101667054B1 (en) Filter assembly using a twist type connector
KR101447907B1 (en) Water Purification Filter Assembly
CN113417338A (en) Kitchen shower head with filtering function and pull-out faucet
KR102326205B1 (en) Filter cartridge for water purifing
KR20200016485A (en) water purifying device of cartridge type

Legal Events

Date Code Title Description
E601 Decision to refuse application