CN102626257A - High-speed air separator - Google Patents
High-speed air separator Download PDFInfo
- Publication number
- CN102626257A CN102626257A CN2012100792868A CN201210079286A CN102626257A CN 102626257 A CN102626257 A CN 102626257A CN 2012100792868 A CN2012100792868 A CN 2012100792868A CN 201210079286 A CN201210079286 A CN 201210079286A CN 102626257 A CN102626257 A CN 102626257A
- Authority
- CN
- China
- Prior art keywords
- bellows
- air
- speed
- air box
- speed belt
- 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.)
- Pending
Links
Images
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
The invention discloses an air separator for a tobacco leaf thresher unit, which comprises a vertical combined air box which is formed by an upper air box, a middle air box and a lower air box which are mutually connected. An air return pipeline is installed on two sides of the vertical combined air box, an air inlet at the upper end of the air return pipeline is connected with a fan, an air outlet at the lower end of the air return pipeline is communicated with the rear portion of the lower air box to form a circulation channel, a discharge port for qualified tobacco leaves is positioned on the upper air box, a circulation net belt is parallely arranged in the lower air box, a discharge port is correspondingly arranged on the middle air box in the feeding direction of the net belt, the upper portion of the discharge port protrudes outwards to form a partial airless zone, a feed port is correspondingly positioned on the middle air box in the feeding direction of the net belt, and a high-speed belt conveyor is disposed at the position of the feed port. The air separator substitutes a belt material throwing method with a roller type material throwing method, saves energy, reduces noise, and is small in damage to tobacco leaves, low in smashing, even and stable in air speed in a cabinet, high in air separation efficiency and large in tobacco flow passing through the unit width of equipment.
Description
Technical field
The present invention relates to tobacco industry beating and double roasting equipment.Relate to a kind of threshing machine group blade wind subset specifically, the qualified tobacco leaf after fighting each other efficiently carries out selection by winnowing.
Background technology
All the time, no matter be the world or domestic in beating and double roasting tobacco leaf process, when air exercise leaf machine configuration set, all be to divide equipment such as device and feeder to realize that final leaf stalk separates through feeding machine, tripper, defoliator, wind.Its apoplexy is divided the operation principle basically identical of device; All be to utilize the gravity floatation principle to come out lighter and qualified tobacco leaf selection by winnowing; Continue the offal of heavier and underproof tobacco leaf and band leaf the defoliator of entering next stage and beat leaf once more; Then selection by winnowing once more is until all separating whole blades from offal.But the height that wind divides the type Design Mode of device to determine its operating efficiency to a great extent, at present, the widely used wind of beating and double roasting enterprise divides device that a variety of patterns are arranged; But the material casting pattern mostly adopts the material casting roller; Material is made broken big in throwing process, and tobacco leaf flow restricted system, and wind field is difficult for adjustment evenly in the storehouse; Influence the equilibrium of wind speed, be unfavorable for the tobacco leaf selection by winnowing.
Summary of the invention
In view of above-mentioned present situation, the purpose of this invention is to provide a kind of high speed winds and divide device, guarantee when normal operation; Reduce material make broken and energy consumption, storehouse in the wind field stable and uniform; It is big also to have the tobacco leaf flow that can pass through, and floor space is little, and selection by winnowing efficient is high; Can improve the sheet type structure of beating the back tobacco leaf, and aspect energy-conserving and environment-protective, also have certain advantage.
For realizing above-mentioned purpose; Technical solution of the present invention is accomplished like this: a kind of high speed winds is divided device, comprises the Vertical Combination bellows that are connected to each other to by last bellows, middle bellows and following bellows, and the return air pipeline is installed in the both sides that are positioned at the Vertical Combination bellows; The air inlet of this return air pipeline upper end connects blower fan; The air outlet of its lower end is communicated with the formation circulation canal with the rear portion of following bellows, last bellows have the discharging opening of a qualified tobacco leaf, the parallel guipure that is provided with circulation in said bellows down; Bellows had the discharging opening that selects tobacco leaf again and again during this guipure traffic direction was pairing; And this evagination space, discharging opening top form select the unobstructed local zone of silence of tobacco leaf discharging again, bellows had a charging aperture during the guipure feedstock direction was pairing, and at this charging aperture position the high-speed belt conveyor of supplying with the guipure material were installed.During application, the discharging opening of the qualified tobacco leaf of last bellows is linked to each other with the feeder feeding mouth, the two ends through the aspiration channel in the feeder are communicated with the blower fan of return air pipeline air inlet again.During the air classifier selection by winnowing; Blower fan is sent into circulated air through bellows under the backwind tube route, and this moment, to the material casting of circulation guipure, and the following bellows that are positioned at the circulation guipure were in the negative pressure duty by high-speed belt conveyor; Above the circulation guipure as eutral margin; Therefore, see through the circulation guipure through circulated air the tobacco leaf of lightweight is discharged via last bellows entering feeder, the air quantity that gets into feeder flows to the return air pipeline through blower fan again and circulates; And the tobacco leaf of heavy amount is discharged by middle bellows discharging opening through the circulation guipure, and entering next stage air classifier carries out repeatedly selection by winnowing again until qualified tobacco leaf.
In the present invention; Related high-speed belt conveyor; The side plate that comprises symmetry and is positioned at the inboard corresponding dolioform leather belt roller that is equipped with of biside plate, and high-speed belt is installed on it; This high-speed belt surface has anti-skidding boss, and the side plate that is positioned at high-speed belt tape loop both sides is provided with reflective photoelectric sensor.In order to detect whether sideslip and send the sideslip alarm signal of high-speed belt.
In the present invention, be fixed with equal wind deflector in the following bellows of Vertical Combination bellows.
The design elevation angle of the high-speed belt of the high-speed belt conveyor among the present invention is 21 degree.
Of the present invention going up in the bellows is provided with lighting device, also is included in described middle bellows and is provided with observation window.
The good effect that the present invention has is: high-speed belt conveyor replaces traditional material casting roller material casting, and material gets into and drawn behind the belt thinly fast, belongs to material casting mode a kind of flexibility, continuous, and the tobacco leaf flow that the FU width can pass through increases; Following bellows have equal wind mechanism, and adopt back air intake mode of operation, and wind field is uniform and stable in the storehouse, and the wind component efficiency is high; Energy-conserving and environment-protective, compact conformation, floor space is little; Directly seat is on the ground, and the equipment whole height is short, and is easy to maintenance.In addition; The material casting high-speed belt is for running up, and belt linear velocity 3-5 metre per second (m/s) is adjustable, because belt speed is high; Drawn thin behind the material entering belt fast; Material casting roller material casting mode than before, the high-speed belt material casting belongs to a kind of flexibility, continuous material casting mode, and the tobacco leaf flow that the FU width can pass through increases; Following bellows have equal wind mechanism, and adopt back air intake mode of operation, can guarantee that wind field is uniform and stable in the storehouse; Blower fan adopts two-shipper shell sound insulation blower fan, and draught fan impeller adopts the backward type design, and fan noise is low, and efficient is high; The circulated air that the return air pipeline of blower fan outlet is designed with (10-15) % advances cleaner, has both guaranteed negative pressure state in the storehouse, purifies the effect of tobacco leaf when having guaranteed the equipment selection by winnowing again; The mode that wind circulating system adopts the high-speed belt below to mend wind can either prevent effectively that wind from dividing string wind phenomenon between the device, has the effect of cleaning backhaul high-speed belt again concurrently, has significantly reduced high-speed belt and can be with material.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is Fig. 1 left view;
Fig. 3 is that Fig. 1 is the anti-deviation warning device sketch map of high-speed belt;
Fig. 4 is that Fig. 1 makes up the equal wind water conservancy diversion of bellows sketch map.
The specific embodiment
To combine accompanying drawing embodiment below, the present invention will be further described.
See that Fig. 1 divides device to high speed winds shown in Figure 4, comprise the Vertical Combination bellows that are connected to each other to by last bellows A, middle bellows B and following bellows C.Return air pipeline 4 is equipped with in the both sides that are positioned at the Vertical Combination bellows; The air inlet of these return air pipeline 4 upper ends is connected with blower fan 3; The air outlet of its lower end is communicated with formation air feed circulation canal with the rear portion of following bellows C; Last bellows A has the discharging opening of a qualified tobacco leaf to be connected with external feeder 7, like this, makes the air quantity that gets into feeder 7 flow to return air pipeline 4 through blower fan 3 again and circulates.The parallel guipure 5 that is provided with circulation in said bellows C down; This guipure 5 is connected (not marking among the figure) with the drive unit of peripheral hardware; And the discharging opening that selects tobacco leaf is again and again arranged on the bellows B during guipure 5 traffic directions are pairing, what form in the space through evagination position, discharging opening top selects the unobstructed local zone of silence D of tobacco leaf discharging again.Guipure 5 of the present invention by stainless sheet steel punching bending and molding after hinged forming, through-hole rate is about 40%, mainly is to collect and carry defective blade and offal.Bellows B had a charging aperture during guipure 5 feedstock directions were pairing, the interior high-speed belt conveyor 1 of supplying with guipure 5 materials of installing of the following bellows C that this charging aperture is relative.Because it is to adopt series connection to use that wind divides device, thus the material after dishing out through after selection by winnowing, heavy down, light last, fall on the guipure 5, get into the material casting of next stage high-speed belt conveyor, realized the natural layering of material, be convenient to selection by winnowing next time.Said high-speed belt conveyor 1 comprises the side plate 8 of symmetry and is positioned at the biside plate 8 inboard corresponding dolioform leather belt rollers 9 that are equipped with that high-speed belt 11 is installed on it, and these high-speed belt 11 surfaces have anti-skidding boss.Therefore; Consider that high-speed belt conveyor has the higher speed of service; And deviation phenomenon can take place, thus reflective photoelectric sensor 10 be provided with at the side plate 8 that is positioned at high-speed belt tape loop both sides, in order to detect whether sideslip and send the sideslip alarm signal of high-speed belt 11.High-speed belt conveyor of the present invention 1 adopts hermetic version, and system's wind-supplying mouth design is in high-speed belt conveyor 1 bottom, has guaranteed that multistage wind divides not go here and there wind; High-speed belt 11 backhaul ends are provided with dust collecting box 6, are convenient to clear up the material that rewinds of high-speed belt 11.High-speed belt conveyor 1 in the present invention, its design elevation angle is 21 degree, can not adjust; Make it have flexible material casting characteristic; Both can increase the operating efficiency that wind divides device, improve the technology flow, and make discharging opening that wind divides the defective material of device just in time can with the seamless link of pan feeding high-speed belt; Avoid traditional pattern of passing through wind-force or belt conveying, greatly reduced energy resource consumption and noise; Simultaneously, send owing to cancelled tobacco leaf wind, following bellows C can directly fall to the ground, and has reduced the height of equipment.Vertical Combination bellows top is last bellows A, and both sides are provided with storehouse intraoral illumination fluorescent lamp, and outlet is connected with flange with feeder 7 (gas material separation equipment), and last bellows A adopts the cone type design that wind speed is accelerated gradually, and qualified tobacco leaf can be separated fast.Combined type bellows middle part is middle bellows B, is the main housing parts of combined type bellows, and rectangular design guarantees the uniformity of selection by winnowing wind speed in the storehouse; The both sides side plate has transparent observation window 2, can observe selection by winnowing state in the storehouse, considers safety factor; After observation window 2 is opened; Complete machine is shut down, and the discharge end of defective material is designed with zone of silence, and material can fall out to getting into subordinate's high-speed belt with gravity.Be fixed with multilayer deflector 12 in the following bellows C among the present invention, it is even to guarantee to see through guipure 5 wind speed.The present invention also can divide the junction at position outside the pipeline 4 that damper (being mark among the figure) is set at the air inlet and the wind at following bellows C rear portion; Regulate air door outward through machine; The uniformity of wind field in the adjustment Vertical Combination bellows storehouse; Also be included in down bellows C both sides and be provided with cleaning door (being mark among the figure), be convenient to clear up the backhaul high-speed belt.
The blower fan 3 that present embodiment is selected for use is to adopt the VFC pattern, adjusts the size of wind speed in the Vertical Combination bellows storehouse, is symmetrically arranged, and directly links to each other with feeder 7 (gas material separation equipment), and the selection by winnowing circulated air is provided.
The return air pipeline 4 of present embodiment is to adopt common pipe-line system, on the spiral case lateral direction of blower fan 3, is provided with dedusting connecting line interface (being mark among the figure).
Key of the present invention is to utilize high-speed belt material casting pattern; Design of vertical combination bellows warehouse structure targetedly; Through the adjustment of high-speed belt conveyor, blower fan and air door, make the stable wind field of formation in the storehouse, improve the slice index of wind component efficiency and wind dispensing unit.
Vertical Combination formula bellows can be processed the selection by winnowing housing of different shape.
High-speed belt 11 materials, thickness and anti-skidding form can be designed to various forms of non-skid bands.
The present invention designs for console mode and is highly low, easy to maintenance; Adopt modularized design, join the floor space that the formula mounting means can shorten production line greatly certainly.
Because the production technology flow is different, divide under the certain situation of load at unit width wind, guipure width of the present invention can carry out the seriation design according to the difference of flow, and bulk shape and structure are constant basically.
Overall procedure of the present invention is: blower fan is opened in advance, and the air-out of blower fan is squeezed into down bellows C through the return air pipeline; Pass guipure, in middle bellows B, form stable ascending air, material gets into from high-speed belt conveyor; Under the drive of high-speed belt conveyor, be thrown into very high speed in the storehouse of combination bellows, bellows A got into the discharge of gas material separation equipment (feeder) back on lighter and qualified middle vanelets passed through under wind action; Heavier material and be that the qualified blade successfully selected can be entrained in and falls together on the guipure, under the rotation of guipure, the past brings out; On middle bellows B structure, designed zone of silence D, prevented that tobacco leaf from suspending not advance to cause putty, be difficult to whole qualified smoked sheets is selected because a wind divides; So wind of the present invention divides the device use of need connecting, repeatedly wind divides material, has reached result of use preferably.
Claims (5)
1. a high speed winds is divided device; It is characterized in that comprise by last bellows A, middle bellows B and following bellows C being connected to each other to the Vertical Combination bellows, return air pipeline (4) is installed in the both sides that are positioned at the Vertical Combination bellows; This return air pipeline (6) upper end air inlet connects blower fan (3); The air outlet of its lower end is communicated with the formation circulation canal with the rear portion of following bellows C, last bellows A has the discharging opening of a qualified tobacco leaf, the parallel guipure (5) that is provided with circulation in said bellows C down; Bellows B had the discharging opening that selects tobacco leaf again and again during this guipure (5) traffic direction was pairing; And this evagination space, discharging opening top form select the unobstructed local zone of silence D of tobacco leaf discharging again, bellows B had a charging aperture during guipure (5) feedstock direction was pairing, and at this charging aperture position the high-speed belt conveyor (1) of supplying with guipure (5) material was installed.
2. high speed winds according to claim 1 is divided device; It is characterized in that,, related high-speed belt conveyor (1); Comprise symmetrical side plate (8) and be positioned at the inboard corresponding dolioform leather belt roller (9) that is equipped with of biside plate (8); High-speed belt (11) is installed on it, and this high-speed belt (11) surface has anti-skidding boss, and the side plate (8) that is positioned at high-speed belt tape loop both sides is provided with reflective photoelectric sensor (10).
3. high speed winds according to claim 1 is divided device, it is characterized in that, also is included in down and is fixed with equal wind deflector (12) in the bellows C.
4. high speed winds according to claim 1 is divided device, it is characterized in that, the design elevation angle of the high-speed belt (11) of high-speed belt conveyor (1) is 21 degree.
5. high speed winds according to claim 1 is divided device, it is characterized in that, is provided with lighting device in the last bellows A, and in described, is provided with observation window (2) on the bellows B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100792868A CN102626257A (en) | 2012-03-23 | 2012-03-23 | High-speed air separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100792868A CN102626257A (en) | 2012-03-23 | 2012-03-23 | High-speed air separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102626257A true CN102626257A (en) | 2012-08-08 |
Family
ID=46584788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100792868A Pending CN102626257A (en) | 2012-03-23 | 2012-03-23 | High-speed air separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102626257A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769368A (en) * | 2013-12-13 | 2014-05-07 | 云南中烟昆船瑞升科技有限公司 | Reproduced tobacco leaf raw material preprocessing peduncle and leaf separating and decontaminating device |
| WO2014135130A1 (en) | 2013-03-07 | 2014-09-12 | 红塔烟草(集团)有限责任公司 | Air-pressure-type dual-bin air-powered separator |
| WO2014198219A1 (en) * | 2013-06-11 | 2014-12-18 | 红塔烟草(集团)有限责任公司 | New highly-efficient energy-saving threshing air separation process and device |
| DE212014000173U1 (en) | 2014-04-29 | 2016-04-22 | Hongta Tobacco (Group) Co., Ltd. | An airflow pressure separator with two chambers |
| CN105642551A (en) * | 2014-12-02 | 2016-06-08 | 北京长征高科技公司 | Fine air separation system for threshed tobacco leaves |
| CN107824456A (en) * | 2017-11-24 | 2018-03-23 | 云南省烟草烟叶公司 | A kind of beating and double roasting tobacco product debris detection means and method |
| CN108855924A (en) * | 2018-05-23 | 2018-11-23 | 云南中烟工业有限责任公司 | A kind of complete wind throwing type wind subsystem |
| CN108903048A (en) * | 2018-07-19 | 2018-11-30 | 红塔烟草(集团)有限责任公司 | A kind of wind separating device of wind pressure control |
| CN113397199A (en) * | 2020-03-17 | 2021-09-17 | 秦皇岛烟草机械有限责任公司 | Raw cigarette posture adjusting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927717Y (en) * | 2006-07-20 | 2007-08-01 | 北京长征高科技公司 | High efficiency energy saving leaf beating wind separating unit |
| CN101053868A (en) * | 2007-04-06 | 2007-10-17 | 江苏智思机械集团有限公司 | Tobacco material wind selection method and device |
| CN201008340Y (en) * | 2007-01-24 | 2008-01-23 | 北京长征高科技公司 | Back-stem leaf beating device |
| CN201938335U (en) * | 2010-12-27 | 2011-08-24 | 山东京鲁烟叶复烤有限公司 | Winnowing impurity-removing device with improved structure |
| CN102481599A (en) * | 2009-09-18 | 2012-05-30 | 凯伊技术公司 | Apparatus and method for post-threshing inspection and sorting of tobacco lamina |
-
2012
- 2012-03-23 CN CN2012100792868A patent/CN102626257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927717Y (en) * | 2006-07-20 | 2007-08-01 | 北京长征高科技公司 | High efficiency energy saving leaf beating wind separating unit |
| CN201008340Y (en) * | 2007-01-24 | 2008-01-23 | 北京长征高科技公司 | Back-stem leaf beating device |
| CN101053868A (en) * | 2007-04-06 | 2007-10-17 | 江苏智思机械集团有限公司 | Tobacco material wind selection method and device |
| CN102481599A (en) * | 2009-09-18 | 2012-05-30 | 凯伊技术公司 | Apparatus and method for post-threshing inspection and sorting of tobacco lamina |
| CN201938335U (en) * | 2010-12-27 | 2011-08-24 | 山东京鲁烟叶复烤有限公司 | Winnowing impurity-removing device with improved structure |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014135130A1 (en) | 2013-03-07 | 2014-09-12 | 红塔烟草(集团)有限责任公司 | Air-pressure-type dual-bin air-powered separator |
| US9764362B2 (en) | 2013-03-07 | 2017-09-19 | Hongta Tobacco (Group) Co., Ltd. | Air-pressure-type dual-bin air-powered separator |
| WO2014198219A1 (en) * | 2013-06-11 | 2014-12-18 | 红塔烟草(集团)有限责任公司 | New highly-efficient energy-saving threshing air separation process and device |
| CN103769368A (en) * | 2013-12-13 | 2014-05-07 | 云南中烟昆船瑞升科技有限公司 | Reproduced tobacco leaf raw material preprocessing peduncle and leaf separating and decontaminating device |
| DE212014000173U1 (en) | 2014-04-29 | 2016-04-22 | Hongta Tobacco (Group) Co., Ltd. | An airflow pressure separator with two chambers |
| CN105642551A (en) * | 2014-12-02 | 2016-06-08 | 北京长征高科技公司 | Fine air separation system for threshed tobacco leaves |
| CN107824456A (en) * | 2017-11-24 | 2018-03-23 | 云南省烟草烟叶公司 | A kind of beating and double roasting tobacco product debris detection means and method |
| CN108855924A (en) * | 2018-05-23 | 2018-11-23 | 云南中烟工业有限责任公司 | A kind of complete wind throwing type wind subsystem |
| CN108903048A (en) * | 2018-07-19 | 2018-11-30 | 红塔烟草(集团)有限责任公司 | A kind of wind separating device of wind pressure control |
| CN113397199A (en) * | 2020-03-17 | 2021-09-17 | 秦皇岛烟草机械有限责任公司 | Raw cigarette posture adjusting equipment |
| CN113397199B (en) * | 2020-03-17 | 2024-05-14 | 秦皇岛烟草机械有限责任公司 | Raw smoke posture adjusting equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102626257A (en) | High-speed air separator | |
| CN103263075B (en) | High efficiency energy saving leaf beating wind separating new technology and equipment | |
| CN103263074B (en) | A kind of high efficiency energy saving leaf beating wind separating Processes and apparatus | |
| CN208542555U (en) | A kind of Novel wind powder concentrator | |
| CN105660036B (en) | A kind of list longitudinal axial flow cleaning device of combined harvester | |
| CN205165187U (en) | High -efficient tea winnowing machine | |
| CN107890995B (en) | A kind of duct type offal removing light impurities equipment | |
| CN106690396A (en) | Air separation process and device for improving air separation efficiency and reducing damage ratio of materials | |
| CN108838090A (en) | It is a kind of to divide device and separation method by tobacco leaf, offal and with the separated wind of stalk blade | |
| CN208542726U (en) | Automatic cleaning sorting machine | |
| CN202893676U (en) | Sorting unit of tobacco materials | |
| CN203778343U (en) | Stem shred separation chamber capable of winnowing for multiple times | |
| CN103271431B (en) | High efficiency energy saving leaf beating wind separating technique | |
| CN203692514U (en) | High efficient energy-saving tobacco-cutting wind-separation equipment | |
| CN206596678U (en) | A kind of raising wind component efficiency simultaneously reduces the wind separating device of material broken rate | |
| CN109984366A (en) | Tobacco shred recycling device in stalk | |
| CN208853257U (en) | It is a kind of to divide device by tobacco leaf, offal and with the separated wind of stalk blade | |
| CN208642750U (en) | A kind of air-flow separated structure of rubber roll husker | |
| CN203426051U (en) | Multistage winnower | |
| CN208597708U (en) | Circulation type wind sorting machine | |
| CN209502257U (en) | Horizontal type level airflow separator | |
| CN205196374U (en) | Light -duty impurity removal device and corn threshing equipment | |
| CN108704849A (en) | A kind of emery dust piece-rate system | |
| CN107890996A (en) | A kind of novel household garbage pneumatic separator | |
| CN203316394U (en) | Two-passage winnowing device for grain processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |