[go: up one dir, main page]

CN102974187A - Compound anti-channeling gas-liquid separator - Google Patents

Compound anti-channeling gas-liquid separator Download PDF

Info

Publication number
CN102974187A
CN102974187A CN 201210509566 CN201210509566A CN102974187A CN 102974187 A CN102974187 A CN 102974187A CN 201210509566 CN201210509566 CN 201210509566 CN 201210509566 A CN201210509566 A CN 201210509566A CN 102974187 A CN102974187 A CN 102974187A
Authority
CN
China
Prior art keywords
gas
liquid
valve
cavity
internally piloted
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
Application number
CN 201210509566
Other languages
Chinese (zh)
Inventor
邢学军
贾艳艳
李善存
刘瑞环
胡光
Original Assignee
邢学军
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 邢学军 filed Critical 邢学军
Priority to CN 201210509566 priority Critical patent/CN102974187A/en
Publication of CN102974187A publication Critical patent/CN102974187A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The invention discloses a compound anti-channeling gas-liquid separator. The technical scheme of the invention is as follows: the top end of a vertically-arranged cylindrical shell is provided with a top cover, the upper part of the shell is provided with a feed inlet, the inner side of the shell is provided with a spiral duct, the inlet of the spiral duct is connected with the feed inlet, the lower end of the shell is provided with a liquid collecting cavity, and a central shaft is provided with a cylindrical gas cavity; the upper end of the top cover is provided with an exhaust pipe, the center of the inside surface of the top cover is provided with an adsorption filter, and the bottom of the adsorption filter is provided with an inverted conical partition plate; the top of the liquid collecting cavity is provided with a centralizer, the center of the liquid collecting cavity is provided with a drainage automatic control valve, and the lower end of the liquid collecting cavity is provided with a drainage pipe; and the inner wall surface of a gas cavity is provided with a horizontal baffle plate, the bottom of the gas cavity is provided with a gas-liquid cavity partition plate, the center of the gas-liquid cavity partition plate is provided with a gas guide hole, and the lower end of the gas-liquid cavity partition plate is provided with an exhaust automatic control valve. The compound anti-channeling gas-liquid separator disclosed by the invention is compact in structure; various separation mechanisms such as centrifugal separation, impact, condensed capturing, gravity separation, adsorption filtration and inertial separation are integrated in one separator; and the separator has a function of preventing gas and liquid from channeling, and can meet the efficient separation of gas and liquid.

Description

Combined type anti-channeling gas-liquid separator
Technical field
The present invention relates to a kind of gas-liquid separator, particularly a kind of combined type anti-channeling gas-liquid separator is applicable to the various gas-liquid mixtures separation that the gas-liquid proportion changes at any time.
Background technology
In production application, because air content changes at any time, separator is separated out the gas liquid ratio imbalance, the phenomenon that exhaust line contains liquid or tapping line gassiness occurs, brings impact to production; Existing many gas-liquid separators have that volume is large, separating effect is not obvious and isolate the defective that contains drop in the gas simultaneously.
Existing separator reason mainly contains that centrifugation, Gravity Separation, bump, condensation are caught, adsorption filtration and the multiple mechanism of inertial separation, patent publication No. for example: CN 102764557A, centrifugation, baffle plate unsteady flow to and porous media filter the gas-liquid separator of combination integrated bump, condensation catch, gravitational settling and the multiple separating mechanism of adsorption filtration.Notification number: CN 202391517U, composite oil-gas separator, description be the swirl cone that adopts centrifugation and adsorption filtration separating mechanism.Because in actual production, often need to realize that gas-liquid separates to increase work efficiency fast, therefore generally tend to the separator that uses multiple separating mechanism integrated.Although the separator of integrated multiple separating mechanism has improved separative efficiency, but and be not suitable for the gas-liquid mixture that air content changes at any time and separate, the gas-liquid separator that has occurred autocontrol for head it off, patent announcement number for example: CN 2898730Y, gas-liquid separator is controlled gas flow by the size of the automatic adjustments of gas exit passageway sectional area such as buoyancy aid and tapered needle valve.Notification number: CN 202087086U, oil expelling resistant separator is by pressure liquid level control valve and the automatic adjusting gas flow of induction sphere.These separators all stop the liquid anti-channeling in exhaust line by the control gas flow.
Summary of the invention
Purpose of the present invention is exactly automatically to control the problem of gas-liquid flow velocity for the separator of integrated multiple separating mechanism, a kind of automatic adjusting is provided, the combined type anti-channeling gas-liquid separator that does not need the external energy, it carries out pre-separation by closed spiral duct to mixed liquor first, then adopt the open type spiral conduit to the liquid degassing of pre-separation, adopt deflection plate and adsorptivity filter that gas is purified.Adopt the exhaust internally piloted valve to stop the liquid anti-channeling in gas pipeline, adopt the discharge opeing internally piloted valve to stop the gas anti-channeling in the liquid pipeline.The separator of this kind form is compact conformation not only, good separating effect, and can prevent the generation of gas-liquid anti-channeling phenomenon.
Technical scheme of the present invention is as follows:
The invention provides a kind of combined type anti-channeling gas-liquid separator, it comprises blast pipe, adsorptivity filter, back taper dividing plate, charging aperture, housing, deflection plate, closed spiral duct, gas-liquid chamber dividing plate, open type spiral conduit, valve ball conduit, hollow ball valve a, guide rail, centralizer, column float, connecting rod, hollow ball valve b, heavy ball, discharging tube, top cover, air cavity, exhaust internally piloted valve, disengagement chamber, liquid collecting cavity and discharge opeing internally piloted valve;
Vertical cylinder shell top of placing is provided with top cover, top is provided with charging aperture, and the inboard is provided with closed spiral duct and open type spiral conduit, and closed spiral duct entrance is connected with charging aperture, the housing lower end is provided with liquid collecting cavity, and the housing central axis is provided with cylindric air cavity;
The top cover upper end is provided with blast pipe, and the medial surface center is provided with the adsorptivity filter, and the adsorptivity filter bottom is equipped with the back taper dividing plate, and back taper dividing plate bottom is provided with opening;
The liquid collecting cavity top is provided with centralizer, and the center is equipped with the discharge opeing internally piloted valve, and the lower end is provided with discharging tube;
The air cavity internal face is provided with horizontal baffle, and the bottom is provided with gas-liquid chamber dividing plate, and dividing plate center, gas-liquid chamber is provided with gas port, and the lower end is provided with the exhaust internally piloted valve.
Described discharge opeing internally piloted valve is comprised of guide rail, column float, connecting rod, hollow ball valve b and heavy ball, described discharge opeing internally piloted valve top is provided with guide rail, guide rail passes radially fixing discharge opeing internally piloted valve of centralizer, guide rails assembling is in column float top, the column float is connected with connecting rod with hollow ball valve b, is provided with heavy ball in the hollow ball valve b.
Described exhaust internally piloted valve is comprised of valve ball conduit and hollow ball valve a, and hollow ball valve a is installed in the valve ball catheter interior, and valve ball conduit bottom and side are provided with the hole.
The present invention has following 4 advantages:
1, by closed spiral duct, makes gas-liquid mixed deposits yields High Rotation Speed, utilize centrifugal force to make the gas-liquid pre-separation.
2, by the open type spiral conduit, the gas in the pre-separation mixture is separated under centrifugal force and Action of Gravity Field, migrated in the disengagement chamber.
3, by exhaust internally piloted valve, the air guide mouth of pipe, discharge opeing internally piloted valve and the discharge opeing mouth of pipe, according to the sectional area size of the automatic adjustments of gas of gas-liquid ratio in gas-liquid mixture outlet with the discharge opeing outlet, do not contain gas in the liquid of carrying liqs and discharge in the gas that guarantees to discharge.
4, by deflection plate, back taper dividing plate and adsorptivity filter, utilization bump, condensation are caught, adsorption filtration mechanism is carried out deep purifying to gas, and it is pure to guarantee to isolate ground gas.
In sum, combined type anti-channeling separator of the present invention has compact conformation, in a separator integrated centrifugation, bump, condensation catch, Gravity Separation, adsorption filtration and the multiple separating mechanism of inertial separation, and have the function that prevents the gas-liquid anti-channeling, can satisfy the efficient separation of gas-liquid.
Description of drawings
Fig. 1-the 1st, the front view of combined type anti-channeling separator.
Fig. 1-2 is the left view of combined type anti-channeling separator.
Fig. 1-the 3rd, the top view of combined type anti-channeling separator.
Fig. 2 is that the master of combined type anti-channeling separator looks sectional structure chart.
Fig. 3 is the stereogram that the master of combined type anti-channeling separator looks cross-section structure.
Number in the figure title: 1. blast pipe, 2. adsorptivity filter, 3. back taper dividing plate, 4. charging aperture, 5. housing, 6. deflection plate, 7. closed spiral duct, 8. gas-liquid chamber dividing plate, 9. open type spiral conduit, 10. valve ball conduit, 11. hollow ball valve a, 12. guide rail, 13. centralizer, 14. column float, 15. connecting rod, 16. hollow ball valve b, 17. heavy ball, 18. discharging tube, 19. top cover, 20. air cavity, 21. exhaust internally piloted valve, 22. disengagement chamber, 23. liquid collecting cavity, 24. discharge opeing internally piloted valve.
The specific embodiment
As shown in drawings, combined type anti-channeling gas-liquid separator comprises blast pipe 1, adsorptivity filter 2, back taper dividing plate 3, charging aperture 4, housing 5, deflection plate 6, closed spiral duct 7, gas-liquid chamber dividing plate 8, open type spiral conduit 9, valve ball conduit 10, hollow ball valve a11, guide rail 12, centralizer 13, column float 14, connecting rod 15, hollow ball valve b16, heavy ball 17, discharging tube 18, top cover 19, air cavity 20, exhaust internally piloted valve 21, disengagement chamber 22, liquid collecting cavity 23 and discharge opeing internally piloted valve 24;
Vertical cylinder shell 5 tops of placing are provided with top cover 19, top is provided with charging aperture 4, the inboard is provided with closed spiral duct 7 and open type spiral conduit 9, closed spiral duct 7 entrances are connected with charging aperture 4, housing 5 lower ends are provided with liquid collecting cavity 23, and housing 5 central axis are provided with cylindric air cavity 20;
Top cover 19 upper ends are provided with blast pipe 1, and the medial surface center is provided with adsorptivity filter 2, and adsorptivity filter 2 bottoms are equipped with back taper dividing plate 3, and back taper dividing plate 3 bottoms are provided with opening;
Liquid collecting cavity 23 tops are provided with centralizer, and the center is equipped with discharge opeing internally piloted valve 24, and the lower end is provided with discharging tube 18;
Air cavity 20 internal faces are provided with horizontal baffle 6, and the bottom is provided with gas-liquid chamber dividing plate 8, and dividing plate 8 centers, gas-liquid chamber are provided with gas port, and the lower end is provided with exhaust internally piloted valve 20.
Described discharge opeing internally piloted valve 24 is comprised of guide rail 12, column float 14, connecting rod 15, hollow ball valve b16 and heavy ball 17, described discharge opeing internally piloted valve 24 tops are provided with guide rail 12, guide rail 12 passes radially fixing discharge opeing internally piloted valve 24 of centralizer 13, guide rail 12 is installed on column float 14 tops, column float 14 is connected with connecting rod 15 with hollow ball valve b16, is provided with heavy ball 17 in the hollow ball valve b16.
Described exhaust internally piloted valve 21 is comprised of valve ball conduit 10 and hollow ball valve a11, and hollow ball valve a11 is installed in valve ball conduit 10 inside, and valve ball conduit 10 bottoms and side are provided with the hole.
The course of work of the present invention is as follows:
In course of normal operation, deliver to charging aperture 4 by the mixture that gas and liquid form through external transport pipeline, this mixture enters closed spiral duct 7, beginning is done centrifugal motion around closed spiral duct 7, under centrifugal action, the liquid that density is large gets rid of to closed spiral duct 7 lateral walls, most of gas is separated and inner sidewall flows, then flow into open type spiral conduit 9, liquid continues to do rotational flow downwards under centrifugal force and Action of Gravity Field, and remaining gas continues to be separated under centrifugal action in the liquid; Isolated gas migration is to disengagement chamber 22; Final liquid compiles at liquid collecting cavity 23, is discharged by discharging tube 18 through the gap of 18 mouthfuls of discharge opeing internally piloted valve 24 and discharging tubes.Gas in the disengagement chamber 22 enters into air cavity 20 by the gentle sap cavity dividing plate 8 central guiding pores of the aperture on the valve ball conduit 10 under pressure, gas is flowed by more than 6 break-in of deflection plate in air cavity 20, a large amount of drops in the gas are because deflection plate 6 and air cavity 20 inwalls are constantly clashed in gravity and inertia force effect, be agglomerated on deflection plate 6 and air cavity 20 inwalls, along with the drop that condenses constantly becomes large, drop flow back into liquid collecting cavity 23 by the gas port on the gas-liquid chamber dividing plate 8 under Action of Gravity Field; Migrate to the separator top through deflection plate 6 purified gases, discharged by blast pipe 1 through adsorptivity filter 2 again.During airflow passes adsorptivity filter 2, little liquid particles is then grown up in that the inner surface of filter core is coalescent because of the coalescent function of filter medium; When reaching certain size, drop because of the impulsive force outflow filter of gravity and air-flow, flows back to through back taper dividing plate 3 bottom openings.
In when work, if the gas content of the gas-liquid mixture that enters by charging aperture 4 increases, then the inner liquid level of separator will descend.When liquid level drop to can not float discharge opeing internally piloted valve 24 fully again after, along with the decline discharge opeing internally piloted valve 24 of liquid level descends, then the lifting rate minimizing is reduced in the gap of 18 mouthfuls of discharge opeing internally piloted valve 24 lower end hollow ball valve b16 and discharging tubes; When liquid level descended to a certain degree, there be not the gap in 18 mouthfuls of hollow ball valve b16 and discharging tubes, stoped liquid to flow out separator.Otherwise along with the rising of liquid level, discharge opeing internally piloted valve 24 raises gradually, and the gap that hollow ball valve b16 and discharging tube are 18 mouthfuls increases, and lifting rate increases, and when liquid level rose to a certain degree, discharge opeing internally piloted valve 24 was owing to the effect of centralizer 13 is no longer risen.
In when work, if the gas content of the gas-liquid mixture that enters by charging aperture 4 reduces, then the inner liquid level of separator will rise.When liquid level rose to a certain degree, liquid entered valve ball conduit 10 inside, hollow ball valve a11 under the effect of liquid buoyancy along with liquid level rises gradually.After hollow ball valve a11 rose to valve ball conduit 10 tops, along with the continuation of liquid level is risen, the overflow section of hollow ball valve a11 and gas-liquid chamber dividing plate 8 central guiding pores is long-pending to be reduced, and throughput reduces.If liquid level continue to rise, wireway gets clogged, and stops gas to enter air cavity 20, guaranteed liquid can anti-channeling in gas pipeline.Otherwise along with the decline of liquid level, the overflow section of hollow ball valve a11 and gas-liquid chamber dividing plate 8 central guiding pores is long-pending to be increased, and throughput increases; When liquid level descend to a certain degree the time, hollow ball valve a11 valve ball conduit 10 bottoms that fall back.

Claims (3)

1. A kind of combined type anti-channeling gas-liquid separator is characterized in that comprising blast pipe (1), adsorptivity filter (2), back taper dividing plate (3), charging aperture (4), housing (5), deflection plate (6), closed spiral duct (7), gas-liquid chamber dividing plate (8), open type spiral conduit (9), valve ball conduit (10), hollow ball valve a(11), guide rail (12), centralizer (13), column float (14), connecting rod (15), hollow ball valve b(16), heavy ball (17), discharging tube (18), top cover (19), air cavity (20), exhaust internally piloted valve (21), disengagement chamber (22), liquid collecting cavity (23) and discharge opeing internally piloted valve (24);
Vertical cylinder shell (5) top of placing is provided with top cover (19), top is provided with charging aperture (4), the inboard is provided with closed spiral duct (7) and open type spiral conduit (9), closed spiral duct (7) entrance is connected with charging aperture (4), housing (5) lower end is provided with liquid collecting cavity (23), and housing (5) central axis is provided with cylindric air cavity (20);
Top cover (19) upper end is provided with blast pipe (1), and the medial surface center is provided with adsorptivity filter (2), and adsorptivity filter (2) bottom is equipped with back taper dividing plate (3), and back taper dividing plate (3) bottom is provided with opening;
Liquid collecting cavity (23) top is provided with centralizer, and the center is equipped with discharge opeing internally piloted valve (24), and the lower end is provided with discharging tube (18);
Air cavity (20) internal face is provided with horizontal baffle (6), and the bottom is provided with gas-liquid chamber dividing plate (8), and gas-liquid chamber dividing plate (8) center is provided with gas port, and the lower end is provided with exhaust internally piloted valve (20).
2. A kind of combined type anti-channeling gas-liquid separator according to claim 1, it is characterized in that: described discharge opeing internally piloted valve (24) is by guide rail (12), column float (14), connecting rod (15), hollow ball valve b(16) and heavy ball (17) form, described discharge opeing internally piloted valve (24) top is provided with guide rail (12), guide rail (12) passes radially fixing discharge opeing internally piloted valve (24) of centralizer (13), guide rail (12) is installed on column float (14) top, column float (14) and hollow ball valve b(16) be connected hollow ball valve b(16 with connecting rod (15)) in be provided with heavy ball (17).
3. A kind of combined type anti-channeling gas-liquid separator according to claim 1, it is characterized in that: described exhaust internally piloted valve (21) is by valve ball conduit (10) and hollow ball valve a(11) form, hollow ball valve a(11) be installed in valve ball conduit (10) inside, valve ball conduit (10) bottom and side are provided with the hole.
CN 201210509566 2012-12-04 2012-12-04 Compound anti-channeling gas-liquid separator Pending CN102974187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210509566 CN102974187A (en) 2012-12-04 2012-12-04 Compound anti-channeling gas-liquid separator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210509566 CN102974187A (en) 2012-12-04 2012-12-04 Compound anti-channeling gas-liquid separator

Publications (1)

Publication Number Publication Date
CN102974187A true CN102974187A (en) 2013-03-20

Family

ID=47848705

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201210509566 Pending CN102974187A (en) 2012-12-04 2012-12-04 Compound anti-channeling gas-liquid separator

Country Status (1)

Country Link
CN (1) CN102974187A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105289185A (en) * 2015-11-25 2016-02-03 潘小军 Multi-flow field absorption reaction apparatus
CN107557087A (en) * 2017-09-05 2018-01-09 中石化广州工程有限公司 A kind of spiral-flow type gas-liquid separation device and method
CN107583400A (en) * 2017-10-31 2018-01-16 三峡大学 Fire prevention dust pelletizing system
CN110384983A (en) * 2019-08-22 2019-10-29 湖北襄化机械设备有限公司 A kind of separator
CN110579045A (en) * 2019-09-20 2019-12-17 海信(山东)空调有限公司 Refrigerant circulation system and air conditioner
CN112263720A (en) * 2020-10-20 2021-01-26 暨南大学 Backflow-preventing negative pressure regulator of central negative pressure system
CN113512442A (en) * 2021-04-16 2021-10-19 森诺科技有限公司 A suction-type homogeneous and complex well fluid pressurized oil and gas mixed transportation integrated device
CN114674621A (en) * 2022-03-28 2022-06-28 广船国际有限公司 A sampling device for closed pressure system and closed pressure system
CN115253494A (en) * 2022-09-02 2022-11-01 吉林大学 A centrifugal air-conditioning gas-liquid separator
CN115318009A (en) * 2022-09-13 2022-11-11 中国科学院青岛生物能源与过程研究所 Gas-liquid separator
CN116907133A (en) * 2023-09-12 2023-10-20 扬州市华淼净化设备有限公司 Gas-liquid separator
CN118705777A (en) * 2024-08-27 2024-09-27 无锡冠亚恒温制冷技术有限公司 A low temperature refrigeration device with automatic exhaust function

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105289185A (en) * 2015-11-25 2016-02-03 潘小军 Multi-flow field absorption reaction apparatus
CN107557087A (en) * 2017-09-05 2018-01-09 中石化广州工程有限公司 A kind of spiral-flow type gas-liquid separation device and method
CN107557087B (en) * 2017-09-05 2020-06-23 中石化广州工程有限公司 Spiral-flow type gas-liquid separation device and method
CN107583400B (en) * 2017-10-31 2023-05-02 三峡大学 Fireproof dust removal system
CN107583400A (en) * 2017-10-31 2018-01-16 三峡大学 Fire prevention dust pelletizing system
CN110384983A (en) * 2019-08-22 2019-10-29 湖北襄化机械设备有限公司 A kind of separator
CN110579045A (en) * 2019-09-20 2019-12-17 海信(山东)空调有限公司 Refrigerant circulation system and air conditioner
CN112263720A (en) * 2020-10-20 2021-01-26 暨南大学 Backflow-preventing negative pressure regulator of central negative pressure system
CN113512442A (en) * 2021-04-16 2021-10-19 森诺科技有限公司 A suction-type homogeneous and complex well fluid pressurized oil and gas mixed transportation integrated device
CN114674621A (en) * 2022-03-28 2022-06-28 广船国际有限公司 A sampling device for closed pressure system and closed pressure system
CN115253494A (en) * 2022-09-02 2022-11-01 吉林大学 A centrifugal air-conditioning gas-liquid separator
CN115253494B (en) * 2022-09-02 2024-03-22 吉林大学 A centrifugal air-conditioning gas-liquid separator
CN115318009A (en) * 2022-09-13 2022-11-11 中国科学院青岛生物能源与过程研究所 Gas-liquid separator
CN116907133A (en) * 2023-09-12 2023-10-20 扬州市华淼净化设备有限公司 Gas-liquid separator
CN116907133B (en) * 2023-09-12 2023-11-24 扬州市华淼净化设备有限公司 Gas-liquid separator
CN118705777A (en) * 2024-08-27 2024-09-27 无锡冠亚恒温制冷技术有限公司 A low temperature refrigeration device with automatic exhaust function
CN118705777B (en) * 2024-08-27 2024-11-08 无锡冠亚恒温制冷技术有限公司 Low-temperature refrigerating device with automatic exhaust function

Similar Documents

Publication Publication Date Title
CN102974187A (en) Compound anti-channeling gas-liquid separator
CN1970130B (en) Liquid and liquid separation device
US10086385B2 (en) Inlet device for gravity separator
CN102489101B (en) Gas-liquid separator
CN202015519U (en) Gas-liquid separator
CN102120103B (en) Gas-oil-water three-phase separator
CN102961940A (en) Gas-liquid separator combining centrifugal separation, baffle plate and filter
CN101584945A (en) A kind of gas-oil-water three-phase separating device
CN101664720B (en) Spiral-flow type gas, oil and water separator
CN103657314A (en) Gas-liquid separation device provided with spiral pipe
CN103303992A (en) Rotational-flow air flotation separating device for greasy dirt-containing sewage
CN107630818B (en) A kind of combined gs-oil separator and its oil and gas separation method
CN201537534U (en) Spiral-flow gas-oil-water separator
CN104043293A (en) Spiral pipe gas-liquid separating method
CN202892985U (en) Combined anti-deviating gas-liquid separator
CN106352622A (en) Oil separator and refrigeration system using it
CN201454168U (en) Gas-oil-water three-phase separation device
CN111001500A (en) Inner flow passage of one-way centrifugal pump centrifuge
CN202876606U (en) Gas-liquid separator combined with centrifugal separation, baffle plate and filter
CN201940134U (en) Fresh air filter
CN201603478U (en) Novel gas-liquid-solid three-phase integrated separator
CN203591665U (en) Gas-liquid separation mechanism for spiral tube
CN105999950B (en) A kind of high efficiency air liquid separation device
CN202860347U (en) Agglomerate cyclone separator
CN200963535Y (en) Liquid-liquid separating device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130320