CN201042645Y - Automatic cleaning filter - Google Patents
Automatic cleaning filter Download PDFInfo
- Publication number
- CN201042645Y CN201042645Y CNU2007200358657U CN200720035865U CN201042645Y CN 201042645 Y CN201042645 Y CN 201042645Y CN U2007200358657 U CNU2007200358657 U CN U2007200358657U CN 200720035865 U CN200720035865 U CN 200720035865U CN 201042645 Y CN201042645 Y CN 201042645Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- rotating shaft
- hollow
- lower shell
- dividing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 239000010865 sewage Substances 0.000 abstract description 22
- 230000033001 locomotion Effects 0.000 abstract description 4
- 238000011001 backwashing Methods 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 3
- 238000005192 partition Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 description 21
- 239000004677 Nylon Substances 0.000 description 16
- 229920001778 nylon Polymers 0.000 description 16
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
And automatically cleaning the filter. Relates to a filter with an automatic cleaning function. The sewage drainage device comprises an upper barrel provided with a water outlet, a lower barrel provided with a water inlet, a partition plate provided with through holes between the upper barrel and the lower barrel, and a hollow sewage drainage rotating shaft provided with a suction nozzle and arranged in the lower barrel, wherein the through holes on the partition plate are uniformly distributed in an annular shape; the hollow pollution discharge rotating shaft is driven by a ratchet wheel and pawl mechanism. The utility model changes the butt joint mode that the prior hollow pollution discharge rotating shaft rotates at a constant speed and the water inlet of the back flush pipeline is gradually communicated with the through hole on the clapboard; the hollow pollution discharge rotating shaft is changed into the pulsating motion, so that the full-port butt joint time of the hollow pollution discharge rotating shaft and the full-port butt joint time of the hollow pollution discharge rotating shaft is prolonged, the backwashing efficiency is improved, and the working efficiency of the whole machine is further improved.
Description
Technical field
The utility model relates to a kind of sewage-treatment plant, particularly a kind of filter with automatic cleaning function.
Background technology
Automatic cleaning strainer is a kind of high-efficiency and energy-saving type water treatment facilities.This equipment adopts difference control backwash device, and the pressure reduction of the inside and outside water of logical Filter column reaches the purpose of automatic cleaning blowdown.The contaminant removal effectiveness height, water consumption is low, and pressure drop is little.Equipment has realized that in running filtration and backwash carry out simultaneously, has the advantage of efficient energy-saving, is particularly useful for removing adhering deformable particle thing and fibrous impurity in the water.
Automatic cleaning strainer of the prior art, mainly comprise upper shell and lower shell, be provided with dividing plate between upper shell and the lower shell, its axle center, dividing plate upper edge is evenly distributed with two groups of filtering holes to outer ring, the Filter column that stretches in the upper shell is installed in the filtering holes, upper shell is provided with delivery port, lower shell is provided with water inlet, be provided with hollow blowdown rotating shaft in the lower shell, the blowdown rotating shaft is stretched out respectively and two groups of suction nozzles that filtering holes is corresponding to both sides, the end of suction nozzle is set with and the corresponding nylon sleeve of filter opening diameter, and the spring that nylon sleeve is provided with through its downside is conflicted at the dividing plate downside; The coaxial power shaft that is fixed with in blowdown rotating shaft upper end, power shaft is upward through dividing plate and upper shell top, and the external part of power shaft links to each other with motor shaft end through continuous transmission mechanism (gear, belt wheel); Blowdown rotating shaft lower end is provided with regulating sleeve, and the regulating sleeve lower end is in bearing is installed in bearing block, and bearing block links to each other with the backwash sewage draining exit.When carrying out sewage water filtration, sewage enters in the lower shell from water inlet, passes through the strainer filtering on the Filter column again, and part is held back greater than the dirt in Filter column upper filter screen gap, and the sewage of relative clean is from the delivery port separating device; Lose filter capacity for avoiding increase because of the dirt interception that filter screen is stopped up gradually, when filtering, motor is through transmission mechanism drive blowdown rotating shaft rotation continuously, make the nylon sleeve circular motion on the suction nozzle, when nylon sleeve and filtering holes over against the time, corresponding filtering holes and doffing intracorporeal space are isolated, backwash sewage draining exit pressure is very low owing to have certain pressure in the upper shell, under differential pressure action, be adsorbed on trapped substance on the filter screen through suction nozzle, blowdown rotating shaft, bearing block outside backwash sewage draining exit discharger, corresponding Filter column regains filter capacity; Under the blowdown rotating shaft was constantly rotated, the corresponding Filter column of each filtering holes all can be backwashed; But the automatic cleaning strainer of this structure also has its weak point, and promptly power transmission shaft directly drives the blowdown rotating shaft and rotates continuously, make that the nylon jacket on the suction nozzle is short with the time that filtering holes overlaps fully, backwash is not thorough, causes contaminant removal effectiveness low, and the long-time back Filter column that uses still can stop up; When nylon sleeve and filtering holes part superposition, water inlet and backwash sewage draining exit are connected, and this moment, a large amount of sewage was directly discharged from the backwash sewage draining exit, caused the lower shell internal drop very big, also can influence the efficient of device.In addition, transmission device is installed on the upper shell top also makes troubles to regular maintenance and maintenance.
The utility model content
The technical problem that the utility model solved provides a kind of hollow blowdown pulsator shaft rotation, makes the long automatic cleaning strainer of the complete mouthful docking time of through hole on counter-flushing pipeline water inlet and the dividing plate.
The technical solution of the utility model is, comprises the upper shell that is provided with delivery port, is provided with the water inlet lower shell, goes up the dividing plate that is provided with through hole between the lower shell, is located at the hollow blowdown rotating shaft that has suction nozzle in the lower shell, and the through hole on the dividing plate evenly distributes ringwise; Described hollow blowdown rotating shaft is driven by ratchet and pawl arrangement.
Described ratchet and pawl arrangement is made up of the holder that is arranged on the lower shell outer wall, drive motors, reductor, rotating disk, bearing pin, connecting rod, pull bar, ratchet, ratchet; Drive motors, reductor are located on the holder, and speed reducer output shaft is connected with a rotating disk, and off-centre is provided with bearing pin on the rotating disk, suit connecting rod on the bearing pin, the sidewall that the hinged pull bar of the other end of connecting rod, pull bar pass lower shell stretches in the lower shell, the terminal ratchet that connects of pull bar; Described ratchet is fixedly connected in the hollow blowdown rotating shaft, between the ratchet of ratchet on angle and the dividing plate between through hole angle consistent, one of them crown radius and suction nozzle axis are in the same plane, and the click burble point is positioned at the plane of one of them bulkhead through-hole axis and the formation of dividing plate axis.
The utility model has changed hollow in the past blowdown rotating shaft uniform rotation, the docking mode that counter-flushing pipeline water inlet and through hole on the dividing plate progressively are communicated with; Change hollow blowdown rotating shaft into pulsating motion, both complete mouthful of docking times are prolonged, improved backwash efficiency, and then improved the operating efficiency of complete machine.
During the utility model work, liquid to be filtered (sewage, sump oil etc.) enter in the lower shell by water inlet, the inboard filter screen that sees through on the Filter column of post enters in the upper shell after filtration, discharge through delivery port again, particle diameter is intercepted on the Filter column inwall greater than the solid particulate matter in filter screen space, progressive additive, the resistance that filtrate sees through filter screen increases gradually, when pressure reduction reaches setting value before and after the filter screen, electric motor starting, the sewage draining exit of backwash is simultaneously opened, ratchet on the driven by motor pull bar moves back and forth, the pull bar gap promotes ratchet and rotates an angle, because the ratchet of ratchet is corresponding with two groups of filtering holes, when ratchet rotates a position, just can so that nylon sleeve and at least one filtering holes wherein over against, and in the intermittent time of ratchet backhaul action, nylon sleeve and filtering holes keep over against the position, like this under the differential pressure action of upper shell and backwash sewage draining exit, Filter column can obtain more backwashing time, can wash more up hill and dale, and when ratchet rotates, ratchet can promote angle of ratchet quick rotation, has reduced the time of changing between different filtering holes; Compared with prior art, the utility model is simple in structure, the contaminant removal effectiveness height, and pressure drop is little, can be widely used in land and the water treatment of marine oil field output, and trade effluents such as petrochemical industry, metallurgy are handled; As cold water process: cooling tower, air-conditioning system, refrigeration system, water charging system, heat exchanger etc.; Surface water filters, spray in the farmland, drip irrigation is filtered; The industrial cycle water filtration; As water Treatment for Reuse such as iron and steel, chemical industry, electric power, automobile, electronics, food, papermaking, sugar industries; Also can be used for sewage treatment plant's tertiary treatment, can reduce the fine filtering system cost.
Description of drawings
Fig. 1 is the configuration diagram of utility model.
Fig. 2 is that the A-A of Fig. 1 is to the partial structurtes diagrammatic sketch.
Fig. 3 is that the B-B of Fig. 2 is to the partial structurtes view
Wherein, 1 upper shell, 2 Filter columns, 3 dividing plates, 4 nylon sleeves, 5 springs, 6 suction nozzles, 7 blowdown rotating shafts, 8 water inlets, 9 pull bars, 10 ratchets, 11 regulating sleeves, 12 bearings, 13 bearing blocks, 14 lower shells, 15 backwash sewage draining exits, 16 holders, 17 black boies, 18 connecting rods, 19 bearing pins, 20 rotating disks, 21 reductors, 22 motors, 23 through holes, 24 delivery ports, 25 ratchets.
The specific embodiment
As Fig. 1~3, be automatic cleaning strainer, comprise upper shell 1 and lower shell 14, be provided with dividing plate 3 between upper shell 1 and the lower shell 14, its axle center, dividing plate 3 upper edges is evenly distributed with two groups of through holes 23 to outer ring, the Filter column 2 that stretches in the upper shell 1 is installed in the through hole 23, upper shell 1 is provided with delivery port 24, lower shell 14 is provided with water inlet 8, be provided with hollow blowdown rotating shaft 7 in the lower shell 14, blowdown rotating shaft 7 is stretched out respectively the suction nozzle 6 corresponding with two groups of through holes 23 to both sides, the end of suction nozzle 6 is set with and the corresponding nylon sleeve 4 of through-hole diameter, nylon sleeve 4 is conflicted at dividing plate 3 downsides through the spring 5 that its downside is provided with, and when blowdown rotating shaft 7 was rotated, nylon sleeve 4 can keep closely contacting with dividing plate 3 bottoms; Blowdown rotating shaft 7 lower ends are provided with regulating sleeve 11, and regulating sleeve 11 also can be integrally manufactured with blowdown rotating shaft 7; Regulating sleeve 11 lower ends are in bearing 12 is installed in bearing block 13, and bearing block 13 and backwash sewage draining exit 15 link to each other through pipeline; Described lower shell 14 sides are provided with holder 16, holder 16 is provided with the reductor 21 that drives through motor 22, reductor 21 output shafts are connected with a rotating disk 20, off-centre is provided with a bearing pin 19 on the rotating disk 20, be set with connecting rod 18 on the bearing pin 19, the other end of connecting rod 18 is hinged with pull bar 9, the sidewall that pull bar 9 passes lower shell 14 stretches in the lower shell 14, for avoiding leaking, be provided with black box 17 between pull bar 9 and the lower shell 14, pull bar 9 ends are provided with a ratchet 25, be fixed with in the blowdown rotating shaft 7 one with ratchet 25 corresponding ratchets 10, the ratchet of ratchet 10 is corresponding with two groups of filtering holes 23, in the intermittent time of ratchet 25 drawback movements, at least one in nylon sleeve 4 and the two groups of through holes 23 over against.
During work, sewage, sump oil waits for that the filtrate body enters in the lower shell 14 from water inlet 8, the post 2 inboard filter screens that see through on the Filter column 2 enter in the upper shell 1 after filtration again, discharge through delivery port 24 then, particle diameter is intercepted on Filter column 2 inwalls greater than the solid particulate matter in filter screen space, progressive additive, the resistance that filtrate sees through filter screen increases gradually, when pressure reduction reaches setting value before and after the filter screen, motor 22 starts, the sewage draining exit of backwash simultaneously 15 is opened, the ratchet 25 that motor 22 drives on the pull bar 9 moves back and forth, pull bar 9 gaps promote ratchet 25 and rotate an angle, because the ratchet of ratchet 10 is corresponding with two groups of through holes 23, when ratchet rotates a position, just can so that nylon sleeve 4 and at least one through hole 23 wherein over against, and in the intermittent time of ratchet 25 backhauls action, nylon sleeve 4 keeps over against the position with through hole 23, like this under the differential pressure action of upper shell 1 and backwash sewage draining exit 15, Filter column 2 can obtain more backwashing time, can wash more up hill and dale, and when ratchet 10 rotates, ratchet 25 can promote angle of ratchet 10 quick rotation, to reduce the time of conversion between the nylon sleeve 4 different through holes 23.
Above-mentioned backwash sewage draining exit 15 can be provided with the outlet valve through pressure reduction control, and the rotation of motor 22 simultaneously also can be controlled through pressure reduction, and whole like this device can move fully automatically.
Claims (2)
1. automatic cleaning strainer comprises the upper shell that is provided with delivery port, is provided with the water inlet lower shell, goes up the dividing plate that is provided with through hole between the lower shell, is located at the hollow blowdown rotating shaft that has suction nozzle in the lower shell, and the through hole on the dividing plate evenly distributes ringwise; It is characterized in that described hollow blowdown rotating shaft is driven by ratchet and pawl arrangement.
2. automatic cleaning strainer according to claim 1 is characterized in that described ratchet and pawl arrangement is made up of the holder that is arranged on the lower shell outer wall, drive motors, reductor, rotating disk, bearing pin, connecting rod, pull bar, ratchet, ratchet; Drive motors, reductor are located on the holder, and speed reducer output shaft is connected with a rotating disk, and off-centre is provided with bearing pin on the rotating disk, suit connecting rod on the bearing pin, the sidewall that the hinged pull bar of the other end of connecting rod, pull bar pass lower shell stretches in the lower shell, the terminal ratchet that connects of pull bar; Described ratchet is fixedly connected in the hollow blowdown rotating shaft, between the ratchet of ratchet on angle and the dividing plate between through hole angle consistent, one of them crown radius and suction nozzle axis are in the same plane, and the click burble point is positioned at the plane of one of them bulkhead through-hole axis and the formation of dividing plate axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200358657U CN201042645Y (en) | 2007-04-23 | 2007-04-23 | Automatic cleaning filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200358657U CN201042645Y (en) | 2007-04-23 | 2007-04-23 | Automatic cleaning filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042645Y true CN201042645Y (en) | 2008-04-02 |
Family
ID=39257531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200358657U Expired - Fee Related CN201042645Y (en) | 2007-04-23 | 2007-04-23 | Automatic cleaning filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042645Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008841A (en) * | 2010-10-15 | 2011-04-13 | 扬州澄露环境工程有限公司 | Non-cutoff differential pressure backwashing filter |
| CN103432810A (en) * | 2013-09-06 | 2013-12-11 | 上海滤威过滤系统有限公司 | Backwashing filter |
| CN103657250A (en) * | 2013-12-04 | 2014-03-26 | 高云芝 | Novel filtration and separation method |
| CN105126414A (en) * | 2015-09-07 | 2015-12-09 | 广船国际有限公司 | Centrifugal self cleaning filter |
| CN105797446A (en) * | 2016-03-22 | 2016-07-27 | 常州大学 | Integrated automatic treatment device for removing oil-containing wastewater particles and purifying oil |
| CN106267957A (en) * | 2016-10-08 | 2017-01-04 | 博尔塔拉蒙古自治州永奇节水设备科技开发有限责任公司 | A kind of automatic cleaning strainer |
| CN106669428A (en) * | 2017-01-09 | 2017-05-17 | 山东钢铁集团日照有限公司 | Ceramic membrane pipe self-cleaning filter |
| CN108096897A (en) * | 2018-02-08 | 2018-06-01 | 江苏优耐特过滤装备有限公司 | The more filtering element self-cleaning filters of suctorial type |
| CN113368577A (en) * | 2021-06-07 | 2021-09-10 | 南京安佰思生物科技有限公司 | Impurity removal and filtration device for production and preparation of glucosyl rutin |
| CN117427391A (en) * | 2023-12-04 | 2024-01-23 | 常熟市华能水处理设备有限责任公司 | surface condensate filter |
-
2007
- 2007-04-23 CN CNU2007200358657U patent/CN201042645Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102008841B (en) * | 2010-10-15 | 2012-09-05 | 扬州澄露环境工程有限公司 | Non-cutoff differential pressure backwashing filter |
| CN102008841A (en) * | 2010-10-15 | 2011-04-13 | 扬州澄露环境工程有限公司 | Non-cutoff differential pressure backwashing filter |
| CN103432810B (en) * | 2013-09-06 | 2015-04-01 | 上海滤威过滤系统有限公司 | Backwashing filter |
| CN103432810A (en) * | 2013-09-06 | 2013-12-11 | 上海滤威过滤系统有限公司 | Backwashing filter |
| CN103657250B (en) * | 2013-12-04 | 2016-03-09 | 安徽四德节能设备制造有限公司 | A kind of method that Novel filtration is separated |
| CN103657250A (en) * | 2013-12-04 | 2014-03-26 | 高云芝 | Novel filtration and separation method |
| CN105126414A (en) * | 2015-09-07 | 2015-12-09 | 广船国际有限公司 | Centrifugal self cleaning filter |
| CN105797446A (en) * | 2016-03-22 | 2016-07-27 | 常州大学 | Integrated automatic treatment device for removing oil-containing wastewater particles and purifying oil |
| CN106267957A (en) * | 2016-10-08 | 2017-01-04 | 博尔塔拉蒙古自治州永奇节水设备科技开发有限责任公司 | A kind of automatic cleaning strainer |
| CN106267957B (en) * | 2016-10-08 | 2017-09-12 | 博尔塔拉蒙古自治州永奇节水设备科技开发有限责任公司 | A kind of automatic cleaning strainer |
| CN106669428A (en) * | 2017-01-09 | 2017-05-17 | 山东钢铁集团日照有限公司 | Ceramic membrane pipe self-cleaning filter |
| CN108096897A (en) * | 2018-02-08 | 2018-06-01 | 江苏优耐特过滤装备有限公司 | The more filtering element self-cleaning filters of suctorial type |
| CN113368577A (en) * | 2021-06-07 | 2021-09-10 | 南京安佰思生物科技有限公司 | Impurity removal and filtration device for production and preparation of glucosyl rutin |
| CN117427391A (en) * | 2023-12-04 | 2024-01-23 | 常熟市华能水处理设备有限责任公司 | surface condensate filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201042645Y (en) | Automatic cleaning filter | |
| CN204601822U (en) | A kind of have the active sand filter that sand machine carried by spiral | |
| CN110604963A (en) | Paper mill sewage filtering mechanism and treatment device | |
| CN107140757A (en) | A kind of self-cleaning water treatment plant | |
| CN201799156U (en) | Multi-cylinder type self-cleaning filter | |
| CN101874948A (en) | Barrel type filtering assembly | |
| CN202237495U (en) | Unpowered rotary filter | |
| CN114288719A (en) | Quartz sand filtering and purifying equipment | |
| CN105477923A (en) | Rapid carbon separation device for sewage treatment | |
| CN108786251B (en) | Debris remove device for water supply system | |
| CN201578904U (en) | Cylindrical filter component | |
| CN205164262U (en) | Useless thick liquid filtration equipment | |
| CN2546071Y (en) | Full-automatic cleaning continuous water filter | |
| CN213101054U (en) | Back flush filter | |
| CN117180829A (en) | Filtering and purifying device capable of discharging sewage and purifying water respectively | |
| CN210304142U (en) | Continuous liquid-solid separation device | |
| CN106390551A (en) | Aquaculture water treatment device | |
| CN101624221B (en) | Cleaning disc type waste waster processor | |
| CN223995564U (en) | Drum-type liquid purifying and filtering equipment | |
| CN2717508Y (en) | On-line back-flushing sand filter | |
| CN113830932A (en) | Environment-friendly mechanical wastewater purification device | |
| CN111825249A (en) | New forms of energy sewage treatment device | |
| CN113426237A (en) | Carbon dioxide treatment equipment and treatment method for calcium carbonate production | |
| CN222880014U (en) | Hydraulic oil filter of cone crusher | |
| CN220360748U (en) | Efficient separator for oil gas recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20160423 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |