WO2002085494A1 - Water softener - Google Patents

Water softener Download PDF

Info

Publication number
WO2002085494A1
WO2002085494A1 PCT/KR2002/000711 KR0200711W WO02085494A1 WO 2002085494 A1 WO2002085494 A1 WO 2002085494A1 KR 0200711 W KR0200711 W KR 0200711W WO 02085494 A1 WO02085494 A1 WO 02085494A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot
water
cold water
cold
tanks
Prior art date
Application number
PCT/KR2002/000711
Other languages
French (fr)
Inventor
Ki-Suk Lee
Original Assignee
Ki-Suk Lee
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
Priority to KR2020010011234U priority Critical patent/KR200240007Y1/en
Priority to KR2001/11234(U.M) priority
Priority to KR2020010027634U priority patent/KR200259054Y1/en
Priority to KR2001/27634(U.M) priority
Application filed by Ki-Suk Lee filed Critical Ki-Suk Lee
Publication of WO2002085494A1 publication Critical patent/WO2002085494A1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00Ion-exchange processes in general; Apparatus therefor
    • B01J47/02Column or bed processes
    • B01J47/022Column or bed processes characterised by the construction of the column or container
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00Location of water treatment or water treatment device
    • C02F2307/06Mounted on or being part of a faucet, shower handle or showerhead
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C2201/00Details, devices or methods not otherwise provided for
    • E03C2201/40Arrangement of water treatment devices in domestic plumbing installations

Abstract

The object of this invention is to provide a water softener for softening hard water to produce soft water. This water softener is easily and simply connected to existing hot and cold water supply pipes, and installed proximately to a wall. In this water softener, hot and cold soft water tanks (1A, 1B), each having ion exchange resin (2), are installed at the tops of hot and cold valve housings (10A, 10B) such that the tanks are movable forward and backward while maintaining their vertical positions. The two valve housings (10A, 10B) are connected to hot and cold water supply pipes (30A, 30B), and control the flow of hard water fed from the two supply pipes (30A, 30B) so as to feed the hard water to the two tanks (1A, 1B), and discharge soft water or waste water from the tanks to the outside through a faucet (32).

Description

WATER SOFTENER

Technical Field

The present invention relates generally to a water softener, and particularly to a water softener, which is easily connected to existing water supply pipes, is installed near the wall of a bathroom to minimize its installation space and so maximize the utilization of space of the bathroom, and enable the forward and rearward rotation of hot and cold soft water softening tanks to easily correct them to be uprightly positioned.

Background Art

In general, service water is purified potable water, but is hard water containing heavy metals, such as mercury, zinc, magnesium or the like, and a variety of impurities, so it not only inhibits the dissolving of soap therein and but also exerts a bad influence upon a user's skin.

Accordingly, if hard water is converted into soft water, which does not harm the skin, by removing heavy metals and impurities from service water, skin- friendly water can be obtained. An apparatus that converts hard water into soft water by adsorbing and removing various heavy metals and impurities from hard water, such as service water, using an ion exchange resin is referred to as a water softener.

For a conventional water softener, the hot and cold softening tanks of the conventional water softener are connected to hot and cold water supply pipes protruding from the wall of a bathroom, respectively. When the hot and cold softening tanks of the conventional water softener are connected to hot and cold water supply pipes, the conventional water softener is problematic in that additional parts are required and connection work is complicated and consumes excessive time. Additionally, installed hot and cold water softening tanks protrude far from the wall of a bathroom, so a considerable space is unnecessarily occupied by them, thus deteriorating the utilization of space of the bathroom.

Disclosure of the Invention

Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a water softener, which can be easily connected to existing hot and cold water supply pipes, and can be installed near the wall of a bathroom, thus maximizing the utilization of space of a bathroom.

Additionally, the present invention provides a water softener, which allows hot and cold water softening tanks connected to hot and cold water valve units to be rotated forward and backward, thus being capable of correcting the hot and cold water softening tanks to be uprightly positioned.

In order to accomplish the above object, the present invention provides a water softener, in which hard water supplied from hot and cold water supply pipes is converted into soft water using ion exchange resins contained in hot and cold water softening tanks and the soft water is discharged through a faucet, comprising hot and cold water valve units connected to the hot and cold water supply pipes and installed to support the hot and cold water softening tanks so that they switch flow paths of the hard water supplied from the hot and cold water tanks to supply the hard water to the hot and cold water softening tanks and they discharge soft water or wastewater to the faucet. The hot and cold water valve units supply hot and cold hard water supplied through water supply ports connected to the hot and cold water supply pipes to the hot and cold water softening tanks through a first or second flow path port switched by first, second and third pistons, and discharge soft water or wastewater to a connection path through the second or first flow path port and second or first water discharge path, thus finally discharging the soft water or wastewater into a water discharge port connected to the faucet.

In another embodiment of the present invention, the first and second flow path ports of the hot and cold water valve units are connected to nipples mounted on the hot and cold water softening tanks using union nuts and ball connection pipes so that the hot and cold water softening tanks are rotated along upper spherical surfaces of the ball connections pipes.

Brief Description of the Drawings

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

Fig. 1 is a perspective view of an embodiment of the present invention;

Fig. 2 is a cross section taken along line X-X of Fig. 1 ;

Fig. 3 is a cross section taken along line A-A of Fig. 2; Fig. 4 is a cross section taken along line B-B of Fig. 2;

Fig. 5 is a cross section taken along line C-C of Fig. 2;

Fig. 6 is a diagram showing the state in which soft water is being produced;

Fig. 7 is a diagram showing the state in which an ion exchange resin is being washed; and

Fig. 8 is a cross section of another embodiment of the present invention. Best Mode for Carrying Out the Invention

Hereinafter, a preferred embodiment of the present invention is described in detail with reference to Figs. 1 to 5.

Fig. 1 is a perspective view of the embodiment of the present invention. Fig. 2 is a cross section taken along line X-X of Fig. 2. Fig. 3 is a cross section taken along line A-A of Fig. 2. Fig. 4 is a cross section taken along line B-B of Fig. 2. Fig. 5 is a cross section taken along line C-C of Fig. 2. Fig. 6 is a diagram showing the state in which soft water is being produced. Fig. 7 is a diagram showing the state in which an ion exchange resin is being washed. The present invention provides a water softener, in which hard water supplied from hot and cold water supply pipes 30A and 30B is converted into soft water using ion exchange resins 2 contained in hot and cold water softening tanks 1A and lb and the soft water is discharged through a faucet 32, comprising hot and cold water valve units 10A and 10B connected to the hot and cold water supply pipes 30A and 3 OB and installed to support the hot and cold water softening tanks 1A and IB so that they switch the flow paths of the hard water supplied from the hot and cold water tanks 1 A and IB to supply the hard water to the hot and cold water softening tanks 1 A and IB and they discharge soft water or wastewater to the faucet 32.

In accordance with an embodiment of the present invention, the hot and cold water valve units 10A and 10B are mounted to connect the hot and cold water softening tanks 1A and IB to the hot and cold water supply pipes 30A and 3 OB. The symmetrically mounted hot and cold water valve units 10A and 10B are connected to the hot and cold water supply pipes 30 A and 3 OB, respectively, and are moved forward and backward in their axial direction to switch their internal flow paths as their valve spools are rotated.

In other words, in the hot and cold water valve units 10A and 10B, the valve spools 11 are engaged with nut caps 13 in a screw manner, and are moved forward and backward in their axial direction according to their rotation directions.

Consequently, first, second and third pistons 12 A, 12B and 12C switch the flow paths of the hard water supplied to valve housings 10 through water supply ports 22 connected to the hot and cold water supply pipes 30A and 3 OB.

In this case, the first, second and third pistons 12 A, 12B and 12C of the valve spools 11 switch the flow paths of hard water or soft water flowing through the hot and cold water valve units 10A and 10B by selectively opening and closing first and second flow path ports 24 and 25 and first and second water discharge paths 20 and 21.

The first and second flow path ports 24 and 25 are parallely formed in the upper portion of each of the hot and cold water valve units 10A and 10B, and connected to nipples 6 and 7 mounted on the lower portion of each of the hot and cold water softening tanks 1 A and IB through union nuts 8 and 9. In particular, a flow path pipe 4 positioned in each of the hot and cold water softening tanks 1A and IB is tightly fitted into the nipple 6 to communicate with the first flow path port 24, while a filter net 5 is fixedly mounted on a portion of the bottom of each of the hot and cold water softening tanks 1A and IB over the nipple 7 to prevent the ion exchange resin 2 contained in the softening tank 1 A or IB from flowing into the second flow path port 25.

A water discharge port 23 and a water supply port 22 are formed at two sides of each of the hot and cold water valve units 10A and 10B, and the water supply port 22 is connected to each of the hot and cold water supply pipes 30A and 30B by a union nut 33. In this case, the hot and cold water discharge pipes 31A and 3 IB of the faucet 32 are connected to the water discharge ports 23 through union nuts 34, respectively.

The first and second water discharge paths 20 and 21 formed in each of the hot and cold water valve units 10A and 10B are selectively opened and closed by the pistons 12A, 12B and 12C of the valve spool 11, and are connected to the water discharge port 23 through a connection path 26.

Meanwhile, in an embodiment of the present invention, the nipples 6 and 7 mounted on the lower portion of each of the hot and cold water softening tanks

1A and IB are connected to first and second flow path ports 24 and 25 through union nuts 8 and 9, respectively.

However, in this configuration of the embodiment, the hot and cold water softening tanks 1A and IB can be rotated to the right and left around the hot and cold water supply pipes 30A and 30B, respectively, but cannot be rotated forward and backward, thus preventing the hot and cold water softening tanks 1A and IB from being corrected to be uprightly positioned. Accordingly, the hot and cold water softening tanks 1A and IB may be mounted over the hot and cold water valve units 10A and 10B while being inclined forward or backward. As described above, in the case where the hot and cold water softening tanks 1 A and IB may be mounted over the hot and cold water valve units 10A and 10B while being inclined forward or backward, the softening function of the hot and cold water softening tanks 1A and IB not only is deteriorated, but also the hot and cold water softening tanks 1A and IB exhibit an unstable appearance. Accordingly, in another embodiment of the present invention, in order to overcome the above-described problem, ball connection pipes 45A and 45B joined with the first and second flow path ports 24 and 24 in a screw manner are connected to the nipples 6-1 and 7-1 of the hot and cold water softening tanks 1A and IB through union nuts 8-1 and 9-1 as shown in Fig. 8. In this case, the upper portions of the ball connection pipes 45 A and 45B are formed to be spherical, and the upper spherical surfaces of the ball connection pipes 45A and 45B slides along guide packings 40A and 40B contained in the nipples 6-1 and 7-1, respectively. As a result, in the case where the hot and cold water softening tanks 1A and IB may be mounted over the hot and cold water valve units 10A and 10B while being inclined to the right or left, the right or left inclination is corrected by rotating the hot and cold water softening tanks 1A and IB to the right or left around the hot and cold water supply pipes 30A and 3 OB. In contrast, in the case where the hot and cold water softening tanks 1 A and IB may be mounted over the hot and cold water valve units 10A and 10B while being inclined forward or backward, the forward or backward inclination is corrected by rotating the hot and cold water softening tanks 1A and IB forward or backward along the upper spherical surfaces of the ball connection pipes 45 A and 45B.

Hereinafter, the operation of the present invention is described.

In accordance with an embodiment of the present invention, as shown in

Fig. 6, when the pistons 12 A, 12B and 12C are moved forward by rotating the valve spool 11 forward, hard water supplied through the hot and cold water supply pipes 30A and 3 OB flows into the water supply port 22 and is discharged through the first flow path port 24.

At this time, the hard water supplied through the first flow path port 24 is moved upward along the flow path pipe 4 by water pressure, discharged to the upper portion of each of the hot and cold water softening tanks 1A and IB, and flows downward through the ion exchange resin 2. In this process, heavy metals and the like are removed from the hard water by the ion exchange resin 2, and so the hard water is converted into soft water.

Further, the soft water is made to flow into the second flow path port 25 through the filter net 5, discharged into the water discharge port 23 through the second water discharge path 21 and the connection path 26, and discharged through the faucet 32 connected to the hot and cold water discharge pipes 31 A and

31B.

In the meantime, when the ion exchange resin 2 is used for a certain period of time, the adsorbing function of the ion exchange resin 2 is considerably deteriorated because heavy metals and the like adhere to the ion exchange resin 2. In order to prevent the deterioration of the impurity adsorbing function, the ion exchange resin 2 is periodically washed. In this case, in order to wash the ion exchange resin 2, a certain amount of salt is first thrown into the water softening tank 1 through a salt inlet 1-1 opened and closed by a salt inlet cap 3.

Additionally, as shown in Fig. 7, when the pistons 12 A, 12B and 12C are moved backward by rotating the valve spool 11 in a reverse direction, hard water supplied through each of the hot and cold water supply pipes 30A and 30B flows into the water supply port 22 and is discharged through the second flow path port

25.

At this time, hard water supplied into the second flow path port 25 is supplied to each of the hot and cold water softening tanks 1A and IB through the filter net 5, and is mixed with the salt thrown through the opened salt inlet 1-1, thereby causing the ion exchange resin 2 with the salt.

In this case, heavy metals and the like are moved from the ion exchange resin 2 by reacting with the salt, are moved upward and float on the water, and wastewater containing heavy metals and the like overflows into the flow path pipe 4 and is discharged.

Additionally, the wastewater overflowing into the flow path pipe 4 flows into the first water discharge port 23, and is discharged into the water discharge port 23 through the first water discharge path 20 and the connection path 26, and is discharged through the faucet 32 connected to the hot and cold discharge pipes 31A and 31B.

As described above, the water softener according to an embodiment of the present invention can be easily connected to existing hot and cold water supply pipes 30 A and 30B, thus improving the productivity of installation work, and can be installed near the wall of a bathroom, thus maximizing the utilization of a bathroom space.

Meanwhile, in accordance with another embodiment of the present invention, in the case where the hot and cold water softening tanks 1A and IB are inclined to the right or left, the hot and cold water softening tanks 1A and IB can be corrected to be uprightly positioned by rotating the hot and cold water softening tank 1 A and IB to the right or left around the hot and cold water supply pipes 30A and 30B. Additionally, in the case where the hot and cold water softening tanks

1A and IB are inclined forward or backward, the hot and cold water softening tanks 1A and IB can be corrected to be uprightly positioned by pushing backward and pulling forward the hot and cold water softening tanks 1A and IB and so rotating the hot and cold water softening tanks 1A and IB forward or backward along the upper spherical surfaces of the ball connection pipes 45 A and 45B.

As described above, in the second embodiment of the present invention, the hot and cold water softening tanks 1A and IB can be freely rotated and so can be easily corrected to be uprightly positioned, so the water softening function of the hot and cold water softening tanks 1 A and IB can be improved, and the hot and cold water softening tanks 1A and IB exhibit a stabile appearance.

Industrial Applicability

The present invention provides a water softener, which converts hard water into soft water by adsorbing and removing heavy metals and the like from the hard water using an ion exchange resin.

Claims

Claims
1. A water softener, in which hard water supplied from hot and cold water supply pipes is converted into soft water using ion exchange resins contained in hot and cold water softening tanks and the soft water is discharged through a faucet, comprising: hot and cold water valve units connected to the hot and cold water supply pipes and installed to support the hot and cold water softening tanks so that they switch flow paths of the hard water supplied from the hot and cold water tanks to supply the hard water to the hot and cold water softening tanks and they discharge soft water or wastewater to the faucet.
2. The water softener according to claim 1, wherein the hot and cold water valve units supply hot and cold hard water supplied through water supply ports connected to the hot and cold water supply pipes to the hot and cold water softening tanks through a first or second flow path port switched by first, second and third pistons, and discharge the soft water or wastewater to a connection path through the second or first flow path port and second or first water discharge path, thus finally discharging the soft water or wastewater into a water discharge port connected to the faucet.
3. The water softener according to claim 1 or 2, wherein valve spools of the hot and cold water valve units are engaged with nut caps in a screw manner, and move first, second and third pistons forward and backward according to their axial direction.
4. The water softener according to claim 1 or 2, wherein first and second flow path ports of the hot and cold water valve units are connected to nipples mounted on the hot and cold water softening tanks using union nuts and ball connection pipes so that the hot and cold water softening tanks are rotated along upper spherical surfaces of the ball connections pipes.
5. The water softener according to claim 4, wherein the nipples are each provided therein with a guide packing that comes in contact with each of the upper spherical surfaces of the ball connection pipes.
PCT/KR2002/000711 2001-04-19 2002-04-18 Water softener WO2002085494A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR2020010011234U KR200240007Y1 (en) 2001-04-19 Device for softening water
KR2001/11234(U.M) 2001-04-19
KR2020010027634U KR200259054Y1 (en) 2001-09-10 Connecting structure of water softener
KR2001/27634(U.M) 2001-09-10

Publications (1)

Publication Number Publication Date
WO2002085494A1 true WO2002085494A1 (en) 2002-10-31

Family

ID=26638860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2002/000711 WO2002085494A1 (en) 2001-04-19 2002-04-18 Water softener

Country Status (2)

Country Link
CN (1) CN1230239C (en)
WO (1) WO2002085494A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004008670U1 (en) * 2004-05-29 2005-10-13 Hannemann, Mike Drinking water softener assembly for use in association with e.g. central heating system has pressure tank resting in wheeled frame
DE102008028051A1 (en) * 2007-11-09 2009-05-14 Mike Hannemann Portable device for treating water, in particular water softening device
CN105130017A (en) * 2015-07-13 2015-12-09 广西柳州中嘉知识产权服务有限公司 Water softening device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705625A (en) * 1985-10-31 1987-11-10 Hart Jr John E Reverse osmosis water purifying system
US5490932A (en) * 1994-04-01 1996-02-13 Kinetico Incorporated Fluid treatment valve system with nozzle driven turbine
US5628899A (en) * 1995-03-10 1997-05-13 Fleck Controls, Inc. Control mechanism for controlling regeneration of two water treatment tanks
US5910244A (en) * 1996-01-26 1999-06-08 Autotrol Corporation Adaptable control valve for fluid treatment system
US5989425A (en) * 1995-11-17 1999-11-23 Toray Industries, Inc. Multi-way valve and water purifier using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4705625A (en) * 1985-10-31 1987-11-10 Hart Jr John E Reverse osmosis water purifying system
US5490932A (en) * 1994-04-01 1996-02-13 Kinetico Incorporated Fluid treatment valve system with nozzle driven turbine
US5628899A (en) * 1995-03-10 1997-05-13 Fleck Controls, Inc. Control mechanism for controlling regeneration of two water treatment tanks
US5989425A (en) * 1995-11-17 1999-11-23 Toray Industries, Inc. Multi-way valve and water purifier using the same
US5910244A (en) * 1996-01-26 1999-06-08 Autotrol Corporation Adaptable control valve for fluid treatment system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004008670U1 (en) * 2004-05-29 2005-10-13 Hannemann, Mike Drinking water softener assembly for use in association with e.g. central heating system has pressure tank resting in wheeled frame
DE102008028051A1 (en) * 2007-11-09 2009-05-14 Mike Hannemann Portable device for treating water, in particular water softening device
WO2009059600A2 (en) 2007-11-09 2009-05-14 Mike Hannemann Portable device for treating water
CN105130017A (en) * 2015-07-13 2015-12-09 广西柳州中嘉知识产权服务有限公司 Water softening device

Also Published As

Publication number Publication date
CN1461233A (en) 2003-12-10
CN1230239C (en) 2005-12-07

Similar Documents

Publication Publication Date Title
CN1922097B (en) Liquid dispenser assembly for use with an appliance
EP0875270A2 (en) Spout mounted water filter and extension
US6368503B1 (en) Filtered fluid dispensing system
US7722772B2 (en) Ion exchange apparatus and method of controlling the same
DE60206317T2 (en) switching valve
US20040117906A1 (en) Faucet with underbody
EP0677619B1 (en) Diverter and water purifier having same
EP1770316A1 (en) A multifunction control valve for a water treatment system
EP2573050B1 (en) Filtered water storage unit
KR101170066B1 (en) Operation method of water softening apparatus and water softening apparatus
US5464530A (en) Ion exchange methods and systems incorporating regenerant recycling
EP1920841A1 (en) Ion exchange equipment
US7566398B2 (en) Water filtering device
CN200955610Y (en) Multifunction control valve for continuously supplying water
TW200938182A (en) Bodyspray assembly
JP2017502736A (en) Water-saving washing machine and control method
WO2008097826A1 (en) A water treatment system
JP3569821B2 (en) Faucet with water purifier
US6971400B1 (en) Air gap apparatus
EP0439253A1 (en) Water treatment system with preservice rinse
US7735805B2 (en) Water control valve
US5244013A (en) Water conditioner rotary valve drive system
KR100875207B1 (en) Water softeners
WO2004094035A1 (en) Water softener
JPH0742210A (en) Tap of sink

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 028012631

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase in:

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP