CN2528618Y - Ink way negative pressure system of ink-jet drawing machine - Google Patents
Ink way negative pressure system of ink-jet drawing machine Download PDFInfo
- Publication number
- CN2528618Y CN2528618Y CN 02205394 CN02205394U CN2528618Y CN 2528618 Y CN2528618 Y CN 2528618Y CN 02205394 CN02205394 CN 02205394 CN 02205394 U CN02205394 U CN 02205394U CN 2528618 Y CN2528618 Y CN 2528618Y
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- ink
- magnetic valve
- pressure
- links
- 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
Images
Landscapes
- Ink Jet (AREA)
Abstract
The utility model provides an ink line negative pressure system for the ink jet machine that includes a circuit part and an electric controlling part. The as circuit part mainly comprises an electromagnetic valve, a four way electromagnetic valve, a regulating valve, a flow control valve, a negative pressure cavity, a vacuum pump, a filter and a pressure gauge; each secondary ink box track of the ink jet machine is in series connection with an electromagnetic valve, a pressure gauge and a regulating valve; each secondary ink box track is connected with the four way electromagnetic valve through another electromagnetic valve and a pressure gauge after parallel connection; and the four way electromagnetic valve, the negative pressure cavity, the vacuum pump and the filter form a pressure access. The electric controlling part includes a plurality of circuit switches, a relay and an air pressure switch. The negative pressure system can make the pressure access through controlling the electromagnetic valve to produce both negative pressure and positive pressure. When the pressure access produces negative pressure, the negative pressure makes a nozzle connected with the secondary ink box jet ink, thereby realizing the controlling of ink proving points of the nozzle; while then the pressure access produces positive pressure, the positive pressure is used for cleaning ink in the nozzle of the ink jet machine and in the secondary ink box.
Description
Technical field
The utility model relates to a kind of air brushing machine China ink road negative pressure system, and this air brushing machine China ink road negative pressure system both can have been realized the control to spray head in spray-painting device ink feed point, can realize Automatic inking again and the ink in spray head in spray-painting device, the secondary print cartridge is cleared up automatically.
Background technology
Traditional spray head in spray-painting device ink supply point control realizes according to siphon principle, reaches control to shower nozzle ink supply point by the height of regulating print cartridge and shower nozzle.When the height of print cartridge is suitable mutually with sprinkler height, the shower nozzle ink-jet; Spend when low when the height of print cartridge, shower nozzle is obstructed because of scarce black ink-jet; When the excessive height of print cartridge, shower nozzle is hung China ink or is dripped China ink, thereby figure is beaten in influence.Though this shower nozzle ink supply point control mode is simple, shortcoming is: 1, ink supply point control narrow range.The height of print cartridge can not too highly can not be crossed again and be lower than, when the excessive height of print cartridge during in appropriate point, because of drip sometimes China ink or hang China ink of the sufficient shower nozzle of ink feed; And when the height of print cartridge during less than appropriate point, the ink in the shower nozzle refluxes, and shower nozzle can not spray China ink again.2, ink is mobile poor.Sometimes shower nozzle meeting is China ink because the ink supply abundance drips, and can not spray China ink because shower nozzle is blocked by ink again sometimes.Use very inconvenience.3, go up the China ink difficulty.Usually need two people's operations, a human syringe pushes shower nozzle with the ink in the ink jet printer secondary print cartridge, and another people then need inhale repeatedly with negtive-pressure implement aligning nozzle just can finish China ink several times.4, intuitive is bad.Do not know the size of siphon value.
Summary of the invention
In order to solve mobile poor, the problem that goes up China ink difficulty, intuitive difference of existing air brushing machine ink supply point control narrow range, ink, the purpose of this utility model provides a kind of air brushing machine China ink road negative pressure system, this air brushing machine China ink road negative pressure system both can have been realized the control to spray head in spray-painting device ink feed point, can realize Automatic inking again and the ink in spray head in spray-painting device, the secondary print cartridge is cleared up automatically, make air brushing machine ink good fluidity, ink supply point control wide ranges.
But another purpose of the present utility model provides, and a kind of system works is stable, the air brushing machine of direct-viewing system negative pressure value size simple to operate China ink road negative pressure system.
For achieving the above object, the utility model is taked following design: a kind of air brushing machine China ink road negative pressure system, and it is made of air path part and automatically controlled part; Described air path part mainly is made up of magnetic valve, four-way formula magnetic valve, pressure regulator valve, flow-limiting valve, negative pressure cavity, vavuum pump, filter and Pressure gauge; Each secondary print cartridge branch road of air brushing machine all connect a magnetic valve, Pressure gauge and pressure regulator valve; Link to each other with four-way formula magnetic valve by another magnetic valve, another Pressure gauge again after each secondary print cartridge branch road parallel connection; Four-way formula magnetic valve, negative pressure cavity, vavuum pump and filter constitute a pressure port; By the control to magnetic valve, this air path part both can produce negative pressure, can produce malleation again; For size and the flow of regulating pressure, described negative pressure cavity links to each other with a flow-limiting valve, and filter links to each other with another flow-limiting valve; Described electric control part branch comprises several contactors, two relays and a baroswitch; The magnetic valve in each secondary print cartridge branch road of described air path part and coil one end of described four-way formula magnetic valve link to each other with power supply by the normally-closed contact of contactor and relay respectively, and the other end links to each other with ground; One end of first relay coil links to each other with power supply, and the other end links to each other with ground by liquid level sensor; Simultaneously, an end of the vavuum pump and second relay coil links to each other with power supply by the normally-closed contact of first relay, and the other end of second relay coil links to each other with baroswitch; The normally opened contact of second relay links to each other with the coil of another magnetic valve again.
This air brushing machine China ink road negative pressure system also comprises a warning circuit that is made of alarm lamp and buzzer, and described alarm lamp links to each other with power supply with the normally opened contact of buzzer by first relay.
Because the utility model adopts above technical scheme, make the utility model China ink road negative pressure system both can produce negative pressure, can produce malleation again, and can control on a large scale the shower nozzle ink feed point of air brushing machine by negative pressure, realize the automatic cleaning of shower nozzle and print cartridge or go up China ink by malleation.Make the utility model be suitable for the ink of different viscosities, and have ink good fluidity, ink ink supply point control wide ranges, system stability, characteristics such as simple to operate.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model air brushing machine China ink road negative pressure system air path part system block diagram
Fig. 2 is the automatically controlled part schematic diagram of the utility model air brushing machine China ink road negative pressure system
The specific embodiment
The utility model China ink road negative pressure system is made of air path part and automatically controlled part; As shown in Figure 1, air path part mainly is made up of magnetic valve F1～magnetic valve F5, four-way formula magnetic valve F6, pressure regulator valve T1～pressure regulator valve T4, flow-limiting valve F7, F8, negative pressure cavity C, vavuum pump D, filter F and Pressure gauge B1～B5.The utility model is at each secondary print cartridge (branch road of secondary print cartridge M1～M4) connect a magnetic valve, Pressure gauge and pressure regulator valve; Secondary print cartridge M1～M4 branch road after the parallel connection links to each other with magnetic valve F6 by magnetic valve F5, Pressure gauge B5 again; The outlet side of the inlet end of magnetic valve F6, negative pressure cavity C, vavuum pump D, filter F and magnetic valve F6 constitutes a pressure port; For size and the flow of regulating pressure, negative pressure cavity C links to each other with a flow-limiting valve F7, and filter F links to each other with a flow-limiting valve F8.The utility model Pressure gauge B5 itself has jettron K5, and when the pressure in the secondary print cartridge path surpassed setting value, jettron K5 automatic disconnection played a protective role.
The utility model negative pressure system makes pressure port both can produce negative pressure by the control to magnetic valve, also can produce malleation.When pressure port (being made of magnetic valve, negative pressure cavity, vavuum pump, filter) produced negative pressure, negative pressure system was pressed into shower nozzle with the ink in the secondary print cartridge and flows out from nozzle, thereby realized the control to shower nozzle ink supply point; When pressure port produces malleation, malleation is applied to the ink of spray head in spray-painting device nozzle is cleared up, the mediation nozzle is avoided blocking, and the ink extrusion in the secondary print cartridge soon reaches China ink or the interior ink of cleaning secondary print cartridge.
Fig. 2 is the automatically controlled part schematic diagram of the utility model air brushing machine China ink road negative pressure system.As shown in Figure 2, the control that the utility model is realized magnetic valve by four contactor K1～K4, relay J 1 and relay J 2, thus realize goal of the invention of the present utility model.
The concrete annexation of the automatically controlled part of the utility model is: as shown in the figure, coil one end of magnetic valve F1～magnetic valve F4 and magnetic valve F6 links to each other with the 24V power supply by the normally-closed contact of diode, contactor K1～K4 and relay J 1 respectively, and the other end links to each other with ground; Coil one end of relay J 1 links to each other with the 24V power supply, and the other end links to each other with ground by liquid level sensor G; Simultaneously, an end of vavuum pump D, relay J 2 coils links to each other with the 24V power supply by the normally-closed contact of relay J 1 respectively, and the other end of relay J 2 coils links to each other with the baroswitch K5 of Pressure gauge B5; The normally opened contact of relay J 2 links to each other with the coil of magnetic valve F5.
Operation principle of the present utility model is: normal condition, and contactor K1～K4 disconnects, and magnetic valve F1～F4 is open mode, and vavuum pump D works on power, and produces negative pressure.Air-flow in the secondary print cartridge enters negative pressure cavity C, vavuum pump D, filter F from the inlet end of magnetic valve F6, releases from the outlet side of magnetic valve F6 again, i.e. airflow direction: A → B → C → D → F → B.At this moment, be negative pressure in each secondary print cartridge, nozzle ink jet is beaten figure.People can regulate vacuum magnitude in the print cartridge by regulating the flow-limiting valve F7 that links to each other with negative pressure cavity.When the negative pressure value in the print cartridge surpasses setting value, baroswitch K5 output signal, relay J 2 actions, gas circuit is opened in magnetic valve F5 energising, and the negative pressure value in the secondary print cartridge is limited within the specific limits.Simultaneously, people can also make the pressure of four secondary print cartridges reach required separately force value by regulating pressure regulator valve T1～T4, realize the purpose of ink supply point control wide ranges of the present invention.
When needs are cleared up spray nozzle or gone up China ink, press the contactor of corresponding secondary print cartridge branch road.M1 is an example with secondary print cartridge branch road, presses contactor K1; Magnetic valve F2～F4 energising, gas circuit is turn-offed; Magnetic valve F1 still cuts off the power supply, gas circuit is opened; Magnetic valve F6 energising, commutation; Airflow direction in the secondary print cartridge becomes: B → C → D → F → B → A → secondary print cartridge M1.Secondary print cartridge M1 is coupled with malleation, and the ink in the print cartridge flows into shower nozzle, and flows out from nozzle, thereby reaches the purpose of clearing up or going up China ink.People can be by regulating the malleation size in the flow-limiting valve F8 adjustment print cartridge that links to each other with filter F.When the malleation value in the print cartridge surpasses setting value, baroswitch K5 output signal, relay J 2 actions, gas circuit is opened in magnetic valve F5 energising, and the malleation value in the secondary print cartridge is limited within the specific limits.
The utility model also is provided with warning circuit.As shown in Figure 2, alarm lamp links to each other with the 24V power supply by the normally opened contact of relay J 1 with buzzer FM.When the ink level in the secondary print cartridge reaches setting value, the adhesive of often making war of liquid level sensor in the secondary print cartridge, relay J 1 coil gets, the normally opened contact adhesive of relay J 1, normally-closed contact disconnects, vavuum pump D outage, and ink feeding system stops to power to the secondary print cartridge, simultaneously, warning circuit is reported to the police.
In addition, the utility model also has the black defencive function of overflowing.Out of control or negative pressure is too high when the print cartridge liquid level causes when overflowing China ink, and ink will flow out negative pressure cavity by A → B → C, and drives relay J 1 by inner liquid level sensor and cut off vacuum-pump power supply, stops to reach the purpose that the China ink that overflows is protected, simultaneously warning to the power supply of secondary print cartridge.
For making system architecture light and handy, succinct, easy to operate, the utility model Pressure gauge B5 self has baroswitch K5.
The utility model is by the force value of each Pressure gauge demonstration negative pressure system each several part, and is very directly perceived; In addition, the utility model can also show the force value of each several part by the mode electronics of display screen.
Only in order to explanation the present invention, clearly the present invention is not subjected to the restriction of these embodiment to above embodiment.Any modification of those of ordinary skill in the art, be out of shape or be equal to replacement, all be encompassed in the middle of the claim scope of the present invention based on flesh and blood of the present invention.
Claims (2)
1, the black road of a kind of air brushing machine negative pressure system, it is characterized in that: this China ink road negative pressure system is made of air path part and automatically controlled part;
Described air path part mainly is made up of magnetic valve, four-way formula magnetic valve, pressure regulator valve, flow-limiting valve, negative pressure cavity, vavuum pump, filter and Pressure gauge; Each secondary print cartridge branch road of air brushing machine all connect a magnetic valve, Pressure gauge and pressure regulator valve; Link to each other with four-way formula magnetic valve by another magnetic valve, another Pressure gauge again after each secondary print cartridge branch road parallel connection; Four-way formula magnetic valve, negative pressure cavity, vavuum pump and filter constitute a pressure port; By the control to magnetic valve, this air path part both can produce negative pressure, can produce malleation again;
For size and the flow of regulating pressure, described negative pressure cavity links to each other with a flow-limiting valve, and filter links to each other with another flow-limiting valve;
Described electric control part branch comprises several contactors, two relays and a baroswitch; The magnetic valve in each secondary print cartridge branch road of described air path part and coil one end of described four-way formula magnetic valve link to each other with power supply by the normally-closed contact of contactor and relay respectively, and the other end links to each other with ground; One end of first relay coil links to each other with power supply, and the other end links to each other with ground by liquid level sensor; Simultaneously, an end of the vavuum pump and second relay coil links to each other with power supply by the normally-closed contact of first relay, and the other end of second relay coil links to each other with baroswitch; The normally opened contact of second relay links to each other with the coil of another magnetic valve again.
2, the black road of air brushing machine according to claim 1 negative pressure system, it is characterized in that: this air brushing machine China ink road negative pressure system also comprises a warning circuit that is made of alarm lamp and buzzer, and described alarm lamp links to each other with power supply with the normally opened contact of buzzer by first relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02205394 CN2528618Y (en) | 2002-03-21 | 2002-03-21 | Ink way negative pressure system of ink-jet drawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02205394 CN2528618Y (en) | 2002-03-21 | 2002-03-21 | Ink way negative pressure system of ink-jet drawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528618Y true CN2528618Y (en) | 2003-01-01 |
Family
ID=33687056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02205394 Expired - Fee Related CN2528618Y (en) | 2002-03-21 | 2002-03-21 | Ink way negative pressure system of ink-jet drawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528618Y (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009117947A1 (en) * | 2008-03-24 | 2009-10-01 | 北大方正集团有限公司 | A cleaning pressure control device and method for an inkjet printer |
| CN101786380A (en) * | 2010-02-28 | 2010-07-28 | 詹洪明 | Electromagetic positive and negative pressure generator for ink supply system of ink-jet printer |
| CN101323210B (en) * | 2007-06-14 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Ink cartridge negative pressure control device and ink supply system using the same |
| CN101954792A (en) * | 2010-08-27 | 2011-01-26 | 陈亿善 | Electromagnetic type negative-voltage stabilization controller for supplying ink for inkjet printer |
| CN102180019A (en) * | 2009-12-07 | 2011-09-14 | 施乐公司 | Method and device for controlling the mass of an ink droplet |
| CN102501606A (en) * | 2011-10-11 | 2012-06-20 | 江苏锐毕利实业有限公司 | Rigid printed circuit board spray printing negative-pressure ink supply pressure control system and method |
| CN102501603A (en) * | 2011-10-11 | 2012-06-20 | 江苏锐毕利实业有限公司 | System and method for stabilizing negative ink-supplying pressure for spray printing of rigid printed circuit board |
| CN102555501A (en) * | 2011-12-21 | 2012-07-11 | 深圳市润天智数字设备股份有限公司 | Automatic negative pressure adjusting system and method |
| CN103287107A (en) * | 2012-02-28 | 2013-09-11 | 北京美科艺数码科技发展有限公司 | Ink-supply control system fault automatic detection method for ink-jet printer |
| CN107128078A (en) * | 2017-05-26 | 2017-09-05 | 深圳诚拓数码设备有限公司 | The positive and negative pressure control system of print cartridge |
| CN107364236A (en) * | 2016-03-30 | 2017-11-21 | 株式会社捷太格特 | The control method of control device and fluid supply apparatus |
| CN107571631A (en) * | 2016-07-05 | 2018-01-12 | 上海联点信息科技有限公司 | A kind of automatic cleaning sprayer device |
| CN109501470A (en) * | 2019-01-11 | 2019-03-22 | 京东方科技集团股份有限公司 | A kind of ink feeding system and its control method, inkjet-printing device |
| CN110131585A (en) * | 2019-05-31 | 2019-08-16 | 江苏仅一联合智造有限公司 | A kind of milk powder filling production equipment big flow multiple-limb negative pressure control apparatus |
| CN110356117A (en) * | 2019-08-23 | 2019-10-22 | 西斯特姆（中国）科技有限公司 | The improvement air-channel system of digital inkjet printing machine |
| CN110435304A (en) * | 2019-08-23 | 2019-11-12 | 上海笙阳数码设备有限公司 | High-precision negative pressure control apparatus suitable for spray drawing machine |
| CN112092505A (en) * | 2020-08-20 | 2020-12-18 | 江苏集萃微纳自动化***与装备技术研究所有限公司 | Continuous ink supply control system for ink-jet printing |
-
2002
- 2002-03-21 CN CN 02205394 patent/CN2528618Y/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323210B (en) * | 2007-06-14 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Ink cartridge negative pressure control device and ink supply system using the same |
| WO2009117947A1 (en) * | 2008-03-24 | 2009-10-01 | 北大方正集团有限公司 | A cleaning pressure control device and method for an inkjet printer |
| CN102180019A (en) * | 2009-12-07 | 2011-09-14 | 施乐公司 | Method and device for controlling the mass of an ink droplet |
| CN101786380A (en) * | 2010-02-28 | 2010-07-28 | 詹洪明 | Electromagetic positive and negative pressure generator for ink supply system of ink-jet printer |
| CN101786380B (en) * | 2010-02-28 | 2011-12-21 | 詹洪明 | Electromagetic positive and negative pressure generator for ink supply system of ink-jet printer |
| CN101954792A (en) * | 2010-08-27 | 2011-01-26 | 陈亿善 | Electromagnetic type negative-voltage stabilization controller for supplying ink for inkjet printer |
| CN102501606A (en) * | 2011-10-11 | 2012-06-20 | 江苏锐毕利实业有限公司 | Rigid printed circuit board spray printing negative-pressure ink supply pressure control system and method |
| CN102501603A (en) * | 2011-10-11 | 2012-06-20 | 江苏锐毕利实业有限公司 | System and method for stabilizing negative ink-supplying pressure for spray printing of rigid printed circuit board |
| CN102555501A (en) * | 2011-12-21 | 2012-07-11 | 深圳市润天智数字设备股份有限公司 | Automatic negative pressure adjusting system and method |
| CN102555501B (en) * | 2011-12-21 | 2015-09-30 | 深圳市润天智数字设备股份有限公司 | A kind of automatic negative pressure adjusting system and method |
| CN103287107B (en) * | 2012-02-28 | 2015-08-19 | 北京美科艺数码科技发展有限公司 | A kind of ink-jet printer ink-providing control system failure automatic detection method |
| CN103287107A (en) * | 2012-02-28 | 2013-09-11 | 北京美科艺数码科技发展有限公司 | Ink-supply control system fault automatic detection method for ink-jet printer |
| CN107364236A (en) * | 2016-03-30 | 2017-11-21 | 株式会社捷太格特 | The control method of control device and fluid supply apparatus |
| CN107364236B (en) * | 2016-03-30 | 2021-03-16 | 株式会社捷太格特 | Control device and control method for fluid supply device |
| CN107571631A (en) * | 2016-07-05 | 2018-01-12 | 上海联点信息科技有限公司 | A kind of automatic cleaning sprayer device |
| CN107128078A (en) * | 2017-05-26 | 2017-09-05 | 深圳诚拓数码设备有限公司 | The positive and negative pressure control system of print cartridge |
| CN109501470A (en) * | 2019-01-11 | 2019-03-22 | 京东方科技集团股份有限公司 | A kind of ink feeding system and its control method, inkjet-printing device |
| CN110131585A (en) * | 2019-05-31 | 2019-08-16 | 江苏仅一联合智造有限公司 | A kind of milk powder filling production equipment big flow multiple-limb negative pressure control apparatus |
| CN110356117A (en) * | 2019-08-23 | 2019-10-22 | 西斯特姆（中国）科技有限公司 | The improvement air-channel system of digital inkjet printing machine |
| CN110435304A (en) * | 2019-08-23 | 2019-11-12 | 上海笙阳数码设备有限公司 | High-precision negative pressure control apparatus suitable for spray drawing machine |
| CN110435304B (en) * | 2019-08-23 | 2020-11-13 | 上海笙阳数码设备有限公司 | High-precision negative pressure control device suitable for inkjet printer |
| CN110356117B (en) * | 2019-08-23 | 2024-05-14 | 西斯特姆（中国）科技有限公司 | Improved gas circuit system of digital ink-jet printing machine |
| CN112092505A (en) * | 2020-08-20 | 2020-12-18 | 江苏集萃微纳自动化***与装备技术研究所有限公司 | Continuous ink supply control system for ink-jet printing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2528618Y (en) | Ink way negative pressure system of ink-jet drawing machine | |
| CN101695883A (en) | Negative pressure system for nozzle of ink-jet printer and negative pressure control method thereof | |
| CN201704729U (en) | Pipe network pressure-superposition frequency conversion water supply system | |
| CN207117643U (en) | A kind of dispatch data net channel interrupt autoalarm | |
| CN212045268U (en) | Precast beam sprays curing means and system | |
| CN211645577U (en) | Intelligent control and regulation system of spray type oiling machine | |
| CN107372048A (en) | A kind of sprinkling truck based on controller control | |
| CN204723864U (en) | Water purification unit and wastewater control system thereof | |
| CN208639209U (en) | The micro- mist environment optimization system of remote-controllable system | |
| CN210671580U (en) | Intelligent environment-friendly drip irrigation control system for wall greening maintenance | |
| CN204667207U (en) | A kind of Multifunctional liquid level controller | |
| CN210179804U (en) | Remote control's cold fog system | |
| CN210216560U (en) | Totally-enclosed steady flow, pressure-superposed energy-storage water supply equipment | |
| CN201029354Y (en) | Irrigation controller | |
| CN205222851U (en) | Multistage filter core purifier | |
| CN220826316U (en) | Independent ink supply negative pressure control system of 3D printer | |
| CN112923110A (en) | Backflow-preventing pressure control valve | |
| CN207833313U (en) | A kind of intelligence control system of the discharge type tile forming mold based on network-control | |
| CN214160198U (en) | Developing solution spraying device and developing equipment | |
| CN206293961U (en) | Electric detection means in a kind of Drinking fountain | |
| CN201615564U (en) | Central air-conditioning controller | |
| CN210699100U (en) | Filter device | |
| CN219533044U (en) | Preparation collector | |
| CN218486360U (en) | Spraying device | |
| CN2690781Y (en) | Gas-water mixing spray humidifging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030101 Termination date: 20100321 |