CN101234369B - Plaster type maze flow passage drip irrigation belt and production process - Google Patents
Plaster type maze flow passage drip irrigation belt and production process Download PDFInfo
- Publication number
- CN101234369B CN101234369B CN2008100545737A CN200810054573A CN101234369B CN 101234369 B CN101234369 B CN 101234369B CN 2008100545737 A CN2008100545737 A CN 2008100545737A CN 200810054573 A CN200810054573 A CN 200810054573A CN 101234369 B CN101234369 B CN 101234369B
- Authority
- CN
- China
- Prior art keywords
- paster
- plastic film
- drip irrigation
- flow passage
- hot pressing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 230000002262 irrigation Effects 0.000 title claims description 28
- 238000003973 irrigation Methods 0.000 title claims description 28
- 239000011505 plaster Substances 0.000 title 1
- 239000002985 plastic film Substances 0.000 claims abstract description 26
- 229920006255 plastic film Polymers 0.000 claims abstract description 26
- 238000007731 hot pressing Methods 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 5
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000010408 film Substances 0.000 description 4
- 238000007666 vacuum forming Methods 0.000 description 4
- 239000003621 irrigation water Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Landscapes
- Containers And Plastic Fillers For Packaging (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a patch-type labyrinth channel drip tape and a production method thereof. The invention is made by thermally attaching a labyrinth channel patch in the middle of plastic film, and is characterized in that a layer of plastic film continuously thermally attaches a plurality of groups of patches which are provided with labyrinth channels under horizontal draft; another synchronous tract layer of plastic film is covered, forms a plurality of channels with a plurality of groups of sandwich patches after be separated and heat pressed and is cut into a plurality of strips of patch type drip tapes. The patch-type labyrinth channel drip tape and the production method thereof can directly take the blown film which is widely used in packaging industry as the base material of channel drips; the width of the wall of a channel drip is reduced obviously; 3 to 8 channel drips can be formed simultaneously on a production line, thereby greatly increasing the production efficiency, reducing the production cost of drip tapes, effectively avoiding the problem of deformation and intensity reduction owing to extending labyrinth channels, simplifying the processing equipment and controlling the quality of products more easily.
Description
Technical field
The present invention relates to a kind of paster type maze flow passage drip irrigation belt and production method, belong to the agricultural water-saving irrigation technical field.
Background technology
Drip irrigation is a kind of irrigation technique of water saving the most, and the irrigate band is one of main drip irrigation parts, by the labyrinth flow-path on it, pressure flow can be become low discharge water droplet or thread and slowly ooze or flow out.But owing to use early stage input too high, limited this technology and applied at present in the poverty-stricken area in vast rural area especially drought and water shortage.Irrigate band labyrinth flow-path forming method commonly used at present comprises vacuum forming method and paster method: the former is at first extruding thin-walled plastic tube, the light-wall pipe of extruding is flattened, before cooling, by briquetting roller the thin-walled plastic pipe is pressed into the labyrinth flow-path shape again, utilizes vacuum forming mode sucking-off labyrinth flow-path simultaneously; The latter is the labyrinth flow-path paster heat seal again of sticking moulding before the plastic tube cooling in tube wall, the advantage of this two classes production method is the machine-shaping continuously of side seam formula irrigate band, one of shortcoming is that the irrigate band is extrusion molding, the former precision prescribed is very high, the equipment manufacturing cost height makes that the production cost of irrigate band is difficult to descend, and extrusion molding is also higher relatively to raw materials for plastics production thickness requirement higher material cost; Two of shortcoming is that an above-mentioned device fabrication line can only be produced an irrigate band, and production efficiency is lower.Therefore have only the investment of simpler and more direct labyrinth flow-path manufacturing process of design and reduction system, could solve the bottleneck problem that the irrigate band is popularized to the rural area.
Summary of the invention
The object of the present invention is to provide a kind of while to produce the production method of many paster maze flow passage drip irrigation belt continuously, to reduce the equipment investment of irrigate band, reduce the wall thickness and the weight of irrigate band simultaneously, solve irrigate band production cost height, the problem that the peasant cannot afford.
Technical scheme of the present invention is achieved in that this paster type maze flow passage drip irrigation belt, the heat seal of labyrinth flow-path paster is set makes by sandwich in the middle of the plastic film, it is characterized in that: this SMD irrigate band is to fit to organize the pasters that are provided with labyrinth flow-path by layer of plastic film Continuous Heat under horizontally tracting more, cover another layer plastic film of sync pulling again, through separating many groups water transport channel that hot pressing constitutes the sandwich paster of many groups, online cutting becomes many SMD irrigate bands.
The labyrinth flow-path of described paster type maze flow passage drip irrigation belt is the disjoint broken line geometries of head and the tail.
The head and the tail place of the labyrinth flow-path unit of described paster type maze flow passage drip irrigation belt is provided with paddle hole.
The production method of described paster type maze flow passage drip irrigation belt comprises:
A, the prefabricated paster that is provided with labyrinth flow-path unit and inlet opening;
The prefabricated paster of B, described plastic film and A step is arranged at respectively on the different spools, rotation synchronously under the traction of finished product spool, and wherein relevant position, the corresponding paster labyrinth flow-path unit of plastic film bilateral is provided with card punch, in advance punching;
The plastic film of C, the punching of B step and paster lump together by the hot pressing roll-in and move on;
The plastic film of D, the heat seal of C step, paster and another layer plastic film are overlapping and punish heat insulation pressing through the hot pressing roller at paster place and edge sealing;
The heat seal irrigate band that E, D step obtain cuts to obtain organizing the irrigate band finished products through the online rotor of cutting more.
The production method of described paster type maze flow passage drip irrigation belt, described finished product spool arranged outside wind-up roll, wind-up roll is connected with reducing motor by chain, rocking arm and holddown spring are set between reducing motor and the wind-up roll make wind-up roll be close to the finished product band, under the frictional force effect, drive the finished product spool and rotate.
The production method of described paster type maze flow passage drip irrigation belt, described hot pressing roller with cut rotor and be connected rotation synchronously with reducing motor by driving chain.
The production method of described paster type maze flow passage drip irrigation belt is characterized in that: described hot pressing roller is a upper and lower settings, and the heating surface of hot pressing roller is provided with at interval to the two-sided heating in irrigate band.
The production method of described paster type maze flow passage drip irrigation belt is characterized in that: described hot pressing roller is one-sided setting, and opposite side is a smooth roll, and the heating surface of hot pressing roller is provided with at interval the irrigate band single face is heated.
The present invention is owing to adopt the technical scheme of moving separation heat seal paster labyrinth flow-path at same equipment continuously, the inflation film that can directly packaging industry widely be used is as the base material of irrigate band, reduce the wall thickness of irrigate band significantly, the 2-8 of moulding simultaneously bar irrigate band increases substantially production efficiency and reduces the irrigate band production cost on same production line; Effectively avoid simultaneously because distortion and the intensity decline problem that labyrinth flow-path stretches and produces.Make process equipment simpler, the easier control of quality.
Description of drawings
Fig. 1 is the process principle figure of SMD irrigate band
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the irrigate band water transport channel and the labyrinth flow-path of hot pressing
Fig. 4 is the structural representation behind the paster maze flow passage drip irrigation belt water-filling
Fig. 5 is the production equipment elongation technology scheme schematic diagram of SMD irrigate band
Among the figure:
1, labyrinth flow- path paster spool 2,22, plastic film spool 3, labyrinth flow- path paster 4,5, plastic film 6,10,18,19, hot pressing roller 7, electric heating sheets 8, guide roller 9, frame 11, cut rotor 12, driving chain 13, motor 14, holddown spring 15, rocking arm 16, wind-up roll 17, finished product spool 20, card punch 21, apopore 23, divide tangent line 24, labyrinth flow-path inlet opening 25, labyrinth flow-path unit
Embodiment
Paster maze flow passage drip irrigation belt production method principle schematic of the present invention shown in Fig. 1,2, this irrigate band uses inflation film and the pressing of equivalent material labyrinth flow-path paster distributed heat to make, the labyrinth flow-path paster can be prefabricated into any broken line shape, the design of paster labyrinth flow-path and moulding all belong to mature technology, need not give unnecessary details at this.
Operation principle comprises: irrigate band of the present invention is formed by labyrinth flow-path paster 3 hot pressing of two layers of plastic thin films 5,4 and middle sandwich setting up and down, and the labyrinth flow-path paster is made as the rolling paster 3 of equidistant uniform broken line shape labyrinth flow-path unit 25 and inlet opening 24 in advance; In process, plastic film 5,4 and paster 3 are wrapped in respectively on the corresponding spool 2,22,1, are rotated by 17 tractions of finished product spool.Apopore 21 is got in the relevant position of labyrinth flow-path paster in the middle of corresponding on lower floor's plastic film 4; Hot pressing is carried out at twice, at first by the first road hot pressing roller 6,19 labyrinth flow-path paster 3 and lower floor's plastic film 4 hot pressing of getting apopore 21 is in the same place; It is overlapping with upper strata plastic film 5 to move on then, carries out hot pressing through the second road hot pressing roller 10,18, and axially spaced-apart distribution electric heating sheets 7 forms several water transport channel as shown in Figure 3 on the described hot pressing roller.Cut and obtain many finished product irrigate bands simultaneously through cutting rotor 11 again.
In order to guarantee the linear velocity constant of above-mentioned irrigate band in process, the present invention selects the finished product spool 17 of torque motor traction, entire equipment connects the drive first road hot pressing roller 6,19 and the second road hot pressing roller 10,18 of driving chain 12 by motor and cuts rotor 11 and rotate synchronously, finishes whole process.
If use common reducing motor as traction power, the elongation technology scheme that the present invention provides is to be provided with wind-up roll 16 in finished product spool 17 outsides, wind-up roll is under the effect of rocking arm 15 and holddown spring 14, be close on the finished product irrigate band, under the effect of frictional force, drive finished product spool 17 and rotate, as shown in Figure 5.
As previously mentioned, main innovate point of the present invention is to utilize unit many SMD irrigate bands of hot pressing simultaneously, the present invention has changed the traditional handicraft of extruding with vacuum forming, use the lower inflation film of cost, the irrigate band that also effectively solves thin-walled is difficult for the technical problem that plastic uptake stretches, the design concept of the SMD irrigate band of the present invention and production method are to utilize the inflation film of packaging industry extensive use, compound with the labyrinth flow-path paster of identical material, can process several irrigate bands simultaneously, process is simple, the machining accuracy height.
Production method of the present invention, the hot pressing roller is the heating surface of corresponding interval according to the specifications design of irrigate band water transport channel and labyrinth flow-path, in labyrinth flow-path pressing and plastic film flanging process owing to be whole and contact, the hot pressing precision wants high compared with the some contact of vacuum forming roller pressing, and owing to be plain-barreled roll hot pressing, not high to equipment precision requirement, its comprehensive price ratio has marked improvement than prior art.
Irrigate band of the present invention in actual applications, irrigation water enters labyrinth flow-path unit 25 by labyrinth flow-path inlet opening 24 in the irrigate band as shown in Figure 4, becomes nothing through the pressure water irrigation water in the feasible pipe of the energy dissipating effect of labyrinth flow-path and presses irrigation water to be oozed by labyrinth flow-path apopore 21 at last.
Foregoing description only proposes as several enforceable technical scheme of paster type maze flow passage drip irrigation belt production method of the present invention, and conduct is not to its structure or technology limitation condition.
Claims (8)
1. paster type maze flow passage drip irrigation belt, the heat seal of labyrinth flow-path paster is set makes by sandwich in the middle of the plastic film, it is characterized in that: this paster type maze flow passage drip irrigation belt is to fit to organize the pasters (3) that are provided with labyrinth flow-path by layer of plastic film (4) Continuous Heat under horizontally tracting more, cover another layer plastic film (5) of sync pulling again, through separating many groups water transport channel that hot pressing constitutes the sandwich paster of many groups, online cutting becomes many SMD irrigate bands.
2. according to the described paster type maze flow passage drip irrigation belt of claim 1, it is characterized in that: described labyrinth flow-path (25) is the disjoint broken line geometries of head and the tail.
3. according to the described paster type maze flow passage drip irrigation belt of claim 2, it is characterized in that: the head and the tail place of labyrinth flow-path unit is provided with paddle hole (24,21).
4. according to the production method of the described paster type maze flow passage drip irrigation belt of claim 1, it is characterized in that: the production method of this irrigate band comprises:
A, the prefabricated paster that is provided with labyrinth flow-path unit (25) and inlet opening (24);
B, described plastic film (4,5) and the prefabricated paster (3) of A step are arranged at respectively on the different spool (2,22,1), rotation synchronously under finished product spool (17) traction, wherein relevant position, corresponding paster (3) the labyrinth flow-path unit of plastic film (4) bilateral is provided with card punch, in advance punching;
The plastic film (4) of C, the punching of B step presses together by hot pressing roller (6,19) with paster (3) and moves on;
The plastic film (4) of D, the heat seal of C step, paster (3) are overlapping and punish heat insulation pressing through hot pressing roller (10,18) at paster place and edge sealing with another layer plastic film (5);
The heat seal irrigate band that E, D step obtain cuts to obtain organizing the irrigate band finished products through the online rotor (11) of cutting more.
5. according to the production method of the described paster type maze flow passage drip irrigation belt of claim 4, it is characterized in that: described finished product spool (17) arranged outside wind-up roll (16), wind-up roll is connected with reducing motor (13) by chain, rocking arm (15) and holddown spring (14) are set between reducing motor and the wind-up roll make wind-up roll (16) be close to the finished product band, under the frictional force effect, drive finished product spool (17) and rotate.
6. according to the production method of the described paster type maze flow passage drip irrigation belt of claim 4, it is characterized in that: described hot pressing roller (6,19; 10,18) with cut rotor (11) and be connected rotation synchronously with reducing motor by driving chain (12).
7. according to the production method of the described paster type maze flow passage drip irrigation belt of claim 4, it is characterized in that: described hot pressing roller is a upper and lower settings, and the heating surface of hot pressing roller is provided with at interval to the two-sided heating in irrigate band.
8. according to the production method of the described paster type maze flow passage drip irrigation belt of claim 4, it is characterized in that: described hot pressing roller is one-sided setting, and opposite side is a smooth roll, and the heating surface of hot pressing roller is provided with at interval the irrigate band single face is heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100545737A CN101234369B (en) | 2008-02-28 | 2008-02-28 | Plaster type maze flow passage drip irrigation belt and production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100545737A CN101234369B (en) | 2008-02-28 | 2008-02-28 | Plaster type maze flow passage drip irrigation belt and production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101234369A CN101234369A (en) | 2008-08-06 |
| CN101234369B true CN101234369B (en) | 2010-04-21 |
Family
ID=39918423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100545737A Expired - Fee Related CN101234369B (en) | 2008-02-28 | 2008-02-28 | Plaster type maze flow passage drip irrigation belt and production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101234369B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658642A (en) * | 2012-05-16 | 2012-09-12 | 白俊峰 | Glass reinforced plastic pipe coiling machine |
| CN103861750B (en) * | 2014-03-10 | 2016-03-02 | 中工武大设计研究有限公司 | A kind of monoblock type drip irrigation zone |
| CN104041382B (en) * | 2014-06-13 | 2015-11-11 | 西北农林科技大学 | Tubular micropore labyrinth drip irrigating belt and processing method |
| CN109733932B (en) * | 2018-11-30 | 2020-04-24 | 肇庆学院 | Multi-station laminating slitting machine and electrical control system thereof |
| CN116039108B (en) * | 2023-03-30 | 2023-06-16 | 天津市华旭盛泰科技有限公司 | Single-picking-wheel internal-embedding patch device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271786A (en) * | 1990-10-12 | 1993-12-21 | Naan Irrigation Systems | Method and apparatus for producing pipes for drip irrigation |
| CN1105927A (en) * | 1993-09-10 | 1995-08-02 | 希德罗马蒂克有限公司 | Method and apparatus for making drip irrigation lines and preformed member for use therein |
| CN1128610A (en) * | 1994-12-07 | 1996-08-14 | E·克切尔有限公司 | Method for mfg. drip irrigation tubes |
| US6464816B1 (en) * | 1994-07-19 | 2002-10-15 | T-Systems International, Inc. | Method and apparatus for making a drip irrigation hose |
| CN1617769A (en) * | 2001-11-26 | 2005-05-18 | 阿米尔·科恩 | Drip irrigation hose and method for making same |
| CN1640236A (en) * | 2003-12-12 | 2005-07-20 | 托马斯机械股份有限公司 | Method of fabrication of drip irrigation conduits |
| CN101032217A (en) * | 2007-04-27 | 2007-09-12 | 中国科学院遗传与发育生物学研究所 | Processing method and formed equipment of biconvex labyrinthine drip irrigation strips |
-
2008
- 2008-02-28 CN CN2008100545737A patent/CN101234369B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5271786A (en) * | 1990-10-12 | 1993-12-21 | Naan Irrigation Systems | Method and apparatus for producing pipes for drip irrigation |
| CN1105927A (en) * | 1993-09-10 | 1995-08-02 | 希德罗马蒂克有限公司 | Method and apparatus for making drip irrigation lines and preformed member for use therein |
| US6464816B1 (en) * | 1994-07-19 | 2002-10-15 | T-Systems International, Inc. | Method and apparatus for making a drip irrigation hose |
| CN1128610A (en) * | 1994-12-07 | 1996-08-14 | E·克切尔有限公司 | Method for mfg. drip irrigation tubes |
| CN1617769A (en) * | 2001-11-26 | 2005-05-18 | 阿米尔·科恩 | Drip irrigation hose and method for making same |
| CN1640236A (en) * | 2003-12-12 | 2005-07-20 | 托马斯机械股份有限公司 | Method of fabrication of drip irrigation conduits |
| CN101032217A (en) * | 2007-04-27 | 2007-09-12 | 中国科学院遗传与发育生物学研究所 | Processing method and formed equipment of biconvex labyrinthine drip irrigation strips |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101234369A (en) | 2008-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101234533B (en) | Production equipment of paster type maze flow passage drip irrigation belt | |
| CN101234369B (en) | Plaster type maze flow passage drip irrigation belt and production process | |
| CN104174684B (en) | A kind of corrugation sandwich layer composite metal plate former and moulding process thereof | |
| CN101954739A (en) | Texturizing machine and texturizing method thereof | |
| CN102218822B (en) | Processing method and device of extrusion vacuum and heat seal drip irrigation belts | |
| CN101642997A (en) | Laser moulding process and laser molding press of free-coating layer seamless holographic films | |
| CN109334180A (en) | A kind of house ornamentation honeycomb composite plate and its production line and production technology | |
| CN201089221Y (en) | One-machine double-line, two-channel PET plastic-steel belt production line | |
| CN102205645A (en) | Method and device for machining film-blowing type vacuum heat-sealing drip irrigation belts | |
| CN202097972U (en) | Device for processing film-blowing type vacuum heat-sealing drip irrigation tapes | |
| CN101143351A (en) | Thin wall irrigation belt, its processing method and forming device | |
| CN109318505B (en) | Casting film making and compression molding linkage production process and linkage production line of glove | |
| CN204130569U (en) | The manufacturing equipment of low-shrinkage EVA adhesive film used for solar batteries | |
| CN116141620A (en) | Production line and production process of PET packing belt | |
| CN104441901A (en) | Drip irrigation belt and production method | |
| CN201761079U (en) | Embossing machine | |
| CN202097973U (en) | Device for processing extrusion type vacuum heat-sealing drip irrigation tape | |
| CN102205646B (en) | Water-cooling vacuum forming roller for producing vacuum heat-sealing drip irrigation belts | |
| CN209141483U (en) | Gloves blow molding film molding machine | |
| CN205522859U (en) | PVC stone plastic floor surface pad pasting automation line | |
| CN102205647B (en) | Machining device of extrusion type vacuum heat-sealing drip irrigation belts | |
| CN210145093U (en) | A medicine subsides synthesizer for cold compress production and processing usefulness | |
| CN2912985Y (en) | Double holes film bag maker | |
| CN204160780U (en) | A kind of plastic film forming and composite integrated production system | |
| CN202318936U (en) | Arrangement structure of calendaring forming roll set of PET (Polyethylene Terephthalate) plate production line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20100421 Termination date: 20120228 |