CN104287082A - Bulk curing barn control system based on thermal oil furnace - Google Patents
Bulk curing barn control system based on thermal oil furnace Download PDFInfo
- Publication number
- CN104287082A CN104287082A CN201410461649.3A CN201410461649A CN104287082A CN 104287082 A CN104287082 A CN 104287082A CN 201410461649 A CN201410461649 A CN 201410461649A CN 104287082 A CN104287082 A CN 104287082A
- Authority
- CN
- China
- Prior art keywords
- curing barn
- controller
- bulk curing
- control system
- barn
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B1/00—Preparation of tobacco on the plantation
- A24B1/02—Arrangements in barns for preparatory treatment of the tobacco, e.g. with devices for drying
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
- F26B21/002—Drying-air generating units, e.g. movable, independent of drying enclosure heating the drying air indirectly, i.e. using a heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention relates to a bulk curing barn control system based on a thermal oil furnace. The problems that the temperature and humidity fluctuation range is large, the out-of-control possibility is high, and the temperature in a curing barn can not be well controlled in the curing process through an existing curing barn control system are solved. The bulk curing barn control system comprises a bulk curing barn controller, an air supplementing door controller, a heat supply valve controller, a dry and wet ball temperature sensor and the like. The bulk curing barn controller collects dry and wet ball temperature values returned by the dry and wet ball temperature sensor, and in combination with the current opening angles of an air supplementing door and a heat supply valve and according to the currently-set target dry and wet ball temperature value, the change amount of the opening angles needed for the air supplementing door and the heat supply valve is calculated, and corresponding control is conducted. In addition, current real-time data are sent to an upper computer so as to be displayed.
Description
Technical field
The present invention relates to the bulk curing barn control system based on heat-conducting oil furnace.
Background technology
Current bulk curing barn control system is one of main operating unit of tobacco flue-curing, and bulk curing barn control system is used to dry bulb and wet-bulb temperature in regulation and control cigarette-filling house, in order to be applicable to the various different baking stage.The environment temperature needed when tobacco leaf toasts is of all kinds, and along with processes such as heat absorption, heat releases, so the temperature automatic control of cigarette-filling house is a well-known difficult problem.The utility model, on the patented technology obtained " taking conduction oil as heat carrier central heating baking tobacco leaves system " (patent No.: ZL200920094918.1) basis, proposes a kind of bulk curing barn control system.
Existing bulk curing barn carrys out control temperature by 2: one is the intake burnt by air compressor control, and two is utilize chimney gate to control heat energy to discharge how many, mainly comprises the cigarette-filling house of barn, heating clamber, controller, air blast, chimney gate.Its course of work is: when the humiture probe detection temperature of barn has a downward trend, controller instruction air blast is combustion-supporting to burner hearth air blast delivery of supplemental oxygen tolerance, and chimney gate turns down and is discharged into outdoor heat and reduces simultaneously, and cigarette-filling house's temperature will improve; And when temp probe detecting temperature is on the rise, controller instruction air blast stops to burner hearth air blast delivery of supplemental oxygen tolerance, chimney gate is opened and is discharged into outdoor heat increase simultaneously, and cigarette-filling house's temperature will control no longer to rise; Week and circulate, realize barn Temperature and Humidity Control.At present, tobacco flue-curing mainly uses fire coal to be the energy, easily cause the features such as the appearance of the temperature in barn is non-linear, Great inertia, large time delay, make easily to occur that large, the out of control chance of humiture fluctuating range is many, the temperature that can not control very well in barn in baking.
Summary of the invention
The present invention solves existing barn control system easily to make to occur the problems such as large, the out of control chance of humiture fluctuating range is many, the temperature that can not control very well in barn in baking, provides a kind of bulk curing barn control system based on heat-conducting oil furnace.
Based on the bulk curing barn control system of heat-conducting oil furnace, comprise wet and dry bulb temperature sensor, be fixed on the bulk curing barn controller outside barn, be arranged on the circulating fan at middle part between bulk curing barn heating, be arranged on the radiator on the downside of circulating fan, be arranged on the benefit air damper controller outside circulating fan, be arranged on the heating valve door controller outside radiator, described wet and dry bulb temperature sensor, benefit air damper controller and heating valve door controller are connected with bulk curing barn controller respectively;
Described heating valve door controller comprises the first DC speed-reducing, the one or seven Gray code code-disc, the first photoelectric conversion plate and V-type ball valve, and described benefit air damper controller comprises the second DC speed-reducing, the two or seven Gray code code-disc, the second photoelectric conversion plate and mends air door forms;
Described first DC speed-reducing driving V-shaped ball valve also gathers by the first photoelectric conversion plate and the one or seven Gray code code-disc the angle that current V-type ball valve opens, and angle value is passed to bulk curing barn controller;
Described second DC speed-reducing drives mends air door forms and gathers by the second photoelectric conversion plate and the two or seven Gray code code-disc the angle that current benefit air door forms open, and angle value is passed to bulk curing barn controller;
Described bulk curing barn controller gathers the temperature value of wet and dry bulb temperature sensor, the target dry wet-bulb temperature value of the angle value that the angle value opened according to current benefit air door forms and V-type ball valve are opened and setting, calculate the opening angle variable quantity mending air door forms and V-type ball valve needs, realize the control to bulk curing barn.
Beneficial effect of the present invention: control system of the present invention realizes simply, debugging is convenient, control effects is good, improves stability and the repeatability of control system, lower to the technical requirement of user, is easy to promote the use of.Greatly can reduce non-linear, the defect such as Great inertia, large time delay of temperature in tobacco flue-curing; Achieve the accuracy to humiture control, improve baking automaticity, High Quality Tobacco baking process can be implemented, improve baking quality of tobacco.
Accompanying drawing explanation
Fig. 1 is of the present invention based on bulk curing barn controller mounting structure schematic diagram in the bulk curing barn control system of heat-conducting oil furnace.
Fig. 2 is the mounting structure schematic diagram based on mending air damper controller and heating valve door controller in the bulk curing barn control system of heat-conducting oil furnace of the present invention;
Fig. 3 is the structural representation based on circulating fan and radiator in the bulk curing barn control system of heat-conducting oil furnace of the present invention;
Fig. 4 is the structural representation based on heating valve door controller in the bulk curing barn control system of heat-conducting oil furnace of the present invention;
Fig. 5 is the structural representation based on mending air damper controller in the bulk curing barn control system of heat-conducting oil furnace of the present invention.
Fig. 6 is the structural representation based on bulk curing barn controller in the bulk curing barn control system of heat-conducting oil furnace of the present invention.
Fig. 7 is the schematic diagram of the bulk curing barn control system based on heat-conducting oil furnace of the present invention.
In figure: 1, bulk curing barn controller, 2, mend air damper controller, 3, heating valve door controller, 4, circulating fan, 5, radiator, 6, V-type ball valve, 7, the first photoelectric conversion plate, the 8, first DC speed-reducing, 9, the 1 Gray code code-discs, 10, air door forms are mended, 11, display board, 12, wet and dry bulb temperature sensor, 13, air switch, 14, master control borad, 15, A.C. contactor, 16, electrothermal relay, 17, Switching Power Supply, 18, battery.
Detailed description of the invention
Detailed description of the invention one, composition graphs 1 to Fig. 7 illustrate present embodiment, based on the bulk curing barn control system of heat-conducting oil furnace, comprise the bulk curing barn controller 1 hung over outside barn, be arranged on the circulating fan 4 at middle part between bulk curing barn heating, and the radiator 5 be arranged on the downside of circulating fan 4, be arranged on the benefit air damper controller 2 outside blower fan, be arranged on the heating valve door controller 3 outside radiator 5, described heating valve door controller 3 comprises V-type ball valve 6, first photoelectric conversion plate 7, first DC speed-reducing the 8, the 1 Gray code code-disc 9.Mend air damper controller and comprise benefit air door forms 10, second photoelectric conversion plate 21, second DC speed-reducing the 19, the 27 Gray code code-disc 20.
Bulk curing barn controller 1 described in present embodiment comprises master control borad 14, the display board 11 be connected with master control borad 14, Switching Power Supply 17 and A.C. contactor 15, Switching Power Supply 17 is connected with air switch 13 and battery 18, A.C. contactor 15 is connected with electrothermal relay 16, and air switch 13 is connected with A.C. contactor 15;
The bulk curing barn control system described in present embodiment is adopted to carry out the process of tobacco flue-curing: this system access 380V three-phase electricity, open air switch 13, bulk curing barn controller 1 gathers the wet and dry bulb temperature value of wet and dry bulb temperature sensor 12 passback of installing in cigarette-filling house, display board 11 demonstrates wet and dry bulb temperature value and target dry wet-bulb temperature value in current cigarette-filling house, master control borad 14 also according to current required dry, wet-bulb temperature value, draws heating valve door controller 3 by Fuzzy PID and mends the corresponding variable quantity of air damper controller 2.
Described heating valve door controller 3 adopts the first DC speed-reducing 8 driving V-shaped ball valve 6, and is gathered current opening angle by the first photoelectric conversion plate 7 and the one or seven Gray code code-disc 9 and returned to master control borad 14, and can upload to display board and gather display.When dry-bulb temperature in barn needs to rise, V-type ball valve 6 is corresponding opens certain angle, and in pipeline, conduction oil flow becomes large, and radiator 5 temperature uprises, and is delivered in cigarette-filling house by heat by circulating fan 4.
Described benefit air damper controller 2 adopts the second DC speed-reducing 19 to drive and mends air door forms 10, and gather current opening angle by the second photoelectric conversion plate 21 and the two or seven Gray code code-disc 20 and return to master control borad 14, and display board can be uploaded carry out gathering display.When wet-bulb temperature in barn needs to decline, benefit air door forms 10 are corresponding opens certain angle, and extraneous air enters in barn, because low in extraneous air humidity ratio barn, then can reduce wet-bulb temperature in barn, unnecessary waste gas is discharged from moisture exhausting port.
Master control borad 14 reception server order or display board 11 signal are regulated and controled by A.C. contactor 15 pairs of circulating fans 4; and use electrothermal relay 16 to protect; if circulating fan 4 overcurrent; electrothermal relay 16 disconnects automatically; and send signal to master control borad 14; report to the police at display board 11, and state is uploaded onto the server carry out alarm indication.
Switching Power Supply 17 pairs of batteries 18 charge, after 380V power supply disconnects, need of work in bulk curing barn controller 6 hours is supplied by battery 18, now bulk curing barn controller 1 does not control benefit air damper controller 2 and heating valve door controller 3, but can continue to measure wet and dry bulb temperature in barn and show.
Photo-electric control and tobacco flue-curing combine by the present invention; there is advantages such as measuring accurately, be swift in response; the accurate roasting mode that this system is exclusive, can realize subtracting work and fall basis, energy efficiency, raising heat utilization rate, protection of the environment, lifting quality of tobacco, the object of tobacco leaf degree structure improved.Use bulk curing barn control system described in present embodiment greatly can reduce the defects such as non-linear, Great inertia, the large time delay of temperature in tobacco flue-curing; Present invention achieves the accuracy to humiture control, improve baking automaticity, High Quality Tobacco baking process can be implemented, improve baking quality of tobacco.
Claims (2)
1. based on the bulk curing barn control system of heat-conducting oil furnace, comprise wet and dry bulb temperature sensor (12), be fixed on the bulk curing barn controller (1) outside barn, be arranged on the circulating fan (4) at middle part between bulk curing barn heating, be arranged on the radiator (5) of circulating fan (4) downside, be arranged on the benefit air damper controller (2) in circulating fan (4) outside, be arranged on the heating valve door controller (3) in radiator (5) outside, it is characterized in that, described wet and dry bulb temperature sensor, benefit air damper controller (2) and heating valve door controller (3) are connected with bulk curing barn controller (1) respectively,
Described heating valve door controller (3) comprises the first DC speed-reducing (8), the one or seven Gray code code-disc (9), the first photoelectric conversion plate 7 and V-type ball valve (6), and described benefit air damper controller (2) comprises the second DC speed-reducing (19), the two or seven Gray code code-disc (20), the second photoelectric conversion plate (21) and mends air door forms (10);
Described first DC speed-reducing (8) driving V-shaped ball valve (6) also gathers by the first photoelectric conversion plate (7) and the one or seven Gray code code-disc (9) angle that current V-type ball valve (6) opens, and angle value is passed to bulk curing barn controller (1);
The driving of described second DC speed-reducing (19) is mended air door forms (10) and is gathered by the second photoelectric conversion plate (21) and the two or seven Gray code code-disc (20) angle that current benefit air door forms (10) open, and angle value is passed to bulk curing barn controller (1);
Described bulk curing barn controller (1) gathers the temperature value of wet and dry bulb temperature sensor, the target dry wet-bulb temperature value of the angle value that the angle value opened according to current benefit air door forms (10) and V-type ball valve (6) are opened and setting, calculate and mend air door forms (10) and the opening angle variable quantity that needs of V-type ball valve (6), realize the control to bulk curing barn.
2. the bulk curing barn control system based on heat-conducting oil furnace according to claim 1, it is characterized in that, described bulk curing barn controller comprises master control borad (14), the display board (11) be connected with master control borad (14), Switching Power Supply (17) and A.C. contactor (15), Switching Power Supply (17) is connected with air switch (13) and battery (18), A.C. contactor (15) is connected with electrothermal relay (16), and air switch (13) is connected with A.C. contactor (15);
Described master control borad (14) is for receiving the signal of display board (11); by A.C. contactor (15), circulating fan (4) is regulated and controled; and adopt electrothermal relay (16) to protect; if circulating fan (4) overcurrent; electrothermal relay (16) disconnects automatically; and send signal to master control borad (14); report to the police at display board (11), described Switching Power Supply (17) is for charging to battery (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461649.3A CN104287082A (en) | 2014-09-11 | 2014-09-11 | Bulk curing barn control system based on thermal oil furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410461649.3A CN104287082A (en) | 2014-09-11 | 2014-09-11 | Bulk curing barn control system based on thermal oil furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104287082A true CN104287082A (en) | 2015-01-21 |
Family
ID=52307250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410461649.3A Pending CN104287082A (en) | 2014-09-11 | 2014-09-11 | Bulk curing barn control system based on thermal oil furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104287082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335923A (en) * | 2020-11-06 | 2021-02-09 | 青岛海信日立空调系统有限公司 | Tobacco dryer |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664034A (en) * | 1970-09-23 | 1972-05-23 | Bouligny Inc R H | Tobacco bulk curing system with improved curing air flow rate control |
| JPH0395386A (en) * | 1989-09-07 | 1991-04-19 | Hokoku Kogyo Kk | Control of grain dehumidification and drying |
| JPH08116947A (en) * | 1994-08-30 | 1996-05-14 | Kanto Noki Kk | Automatic controlling type electrically heated dryer for leaf tobacco and auxiliary conveying carriage used for practicing the same apparatus |
| CN201067077Y (en) * | 2007-06-06 | 2008-06-04 | 天昌国际烟草有限公司 | Intelligent tobacco leaf baking temperature and humidity controlling instrument |
| CN201523652U (en) * | 2009-10-23 | 2010-07-14 | 云南省烟草公司楚雄州公司 | Heating oil furnace central heat supply tobacco flue-curing device |
| CN201624133U (en) * | 2009-12-11 | 2010-11-10 | 吉林省烟草公司白城市公司 | Central heating tobacco baking system using heat transfer oil as heat carrier |
| CN201700385U (en) * | 2010-07-05 | 2011-01-12 | 昆明理工大学 | Bulk curing barn dehumidifying airflow waste heat utilizing device |
| CN202172824U (en) * | 2011-07-23 | 2012-03-28 | 广东美的电器股份有限公司 | Heat pump tobacco flue-curing device capable of recovering waste heat |
| CN103202529A (en) * | 2013-04-19 | 2013-07-17 | 洛阳中启动力科技有限公司 | Tobacco flue-curing barn with damping device and digital vortex heat pump unit |
| CN103519337A (en) * | 2013-10-25 | 2014-01-22 | 王清伟 | High-density negative-pressure circulating-type stack-type curing barn system by utilizing tobacco leaves for metabolizing heat energy |
| CN204191558U (en) * | 2014-09-11 | 2015-03-11 | 吉林省烟草公司白城市公司 | Based on the bulk curing barn control system of heat-conducting oil furnace |
-
2014
- 2014-09-11 CN CN201410461649.3A patent/CN104287082A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664034A (en) * | 1970-09-23 | 1972-05-23 | Bouligny Inc R H | Tobacco bulk curing system with improved curing air flow rate control |
| JPH0395386A (en) * | 1989-09-07 | 1991-04-19 | Hokoku Kogyo Kk | Control of grain dehumidification and drying |
| JPH08116947A (en) * | 1994-08-30 | 1996-05-14 | Kanto Noki Kk | Automatic controlling type electrically heated dryer for leaf tobacco and auxiliary conveying carriage used for practicing the same apparatus |
| CN201067077Y (en) * | 2007-06-06 | 2008-06-04 | 天昌国际烟草有限公司 | Intelligent tobacco leaf baking temperature and humidity controlling instrument |
| CN201523652U (en) * | 2009-10-23 | 2010-07-14 | 云南省烟草公司楚雄州公司 | Heating oil furnace central heat supply tobacco flue-curing device |
| CN201624133U (en) * | 2009-12-11 | 2010-11-10 | 吉林省烟草公司白城市公司 | Central heating tobacco baking system using heat transfer oil as heat carrier |
| CN201700385U (en) * | 2010-07-05 | 2011-01-12 | 昆明理工大学 | Bulk curing barn dehumidifying airflow waste heat utilizing device |
| CN202172824U (en) * | 2011-07-23 | 2012-03-28 | 广东美的电器股份有限公司 | Heat pump tobacco flue-curing device capable of recovering waste heat |
| CN103202529A (en) * | 2013-04-19 | 2013-07-17 | 洛阳中启动力科技有限公司 | Tobacco flue-curing barn with damping device and digital vortex heat pump unit |
| CN103519337A (en) * | 2013-10-25 | 2014-01-22 | 王清伟 | High-density negative-pressure circulating-type stack-type curing barn system by utilizing tobacco leaves for metabolizing heat energy |
| CN204191558U (en) * | 2014-09-11 | 2015-03-11 | 吉林省烟草公司白城市公司 | Based on the bulk curing barn control system of heat-conducting oil furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112335923A (en) * | 2020-11-06 | 2021-02-09 | 青岛海信日立空调系统有限公司 | Tobacco dryer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203396036U (en) | Novel fresh air management system | |
| CN108477660B (en) | Intelligent double-power tobacco curing barn | |
| CN108039107A (en) | A kind of propagation of flame experimental system for simulating | |
| CN105987488A (en) | Household air quality monitoring system and control method utilizing intelligent internet of things | |
| CN104676689A (en) | Implementation method for automatically controlling starting, stopping and exhaust amount of range hood | |
| CN201748468U (en) | Flue gas oxygen content control system of gas boiler | |
| CN104729276A (en) | Intelligent energy-saving control system of grain drying tower | |
| CN204191558U (en) | Based on the bulk curing barn control system of heat-conducting oil furnace | |
| CN204665692U (en) | A kind of bio-fuel air heating furnace intelligence control system | |
| CN203279445U (en) | IDC cabinet with energy saving and heat dissipation functions | |
| CN104287082A (en) | Bulk curing barn control system based on thermal oil furnace | |
| CN203215989U (en) | Domestic intelligent electric control fan heater control device | |
| CN103234276A (en) | Control device of domestic intelligent electric control fan heater | |
| CN103294028B (en) | The integrated control method of interior architecture energy consumption and air quality | |
| CN104913372A (en) | Novel intelligent biological particle heating system | |
| CN202958762U (en) | Detection system of tobacco curing state for bulk curing barn | |
| CN203835770U (en) | Exhaust fan for automatically adjusting difference of indoor and outer temperatures | |
| CN205372849U (en) | Intelligent central air -conditioning control system | |
| CN201263390Y (en) | Self-control air door of tobacco flue-curing house | |
| CN204054401U (en) | A kind of intelligent drying machine energy-saving protective device | |
| CN204039427U (en) | A kind of device measuring blast furnace injection rate of pulverized coal combustion | |
| CN106020302A (en) | Lab environment monitoring device | |
| CN202472463U (en) | An intelligent controller for heat inspection in a granary | |
| CN201839787U (en) | Automatic controller of biomass gasification furnace for tobacco flue-curing | |
| CN206683241U (en) | A kind of gas combustion apparatus for realizing monitoring and control combustion conditions |
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: 20150121 |