CN111547890A - Automatic opening and closing sewage precipitation treatment device - Google Patents
Automatic opening and closing sewage precipitation treatment device Download PDFInfo
- Publication number
- CN111547890A CN111547890A CN202010435524.9A CN202010435524A CN111547890A CN 111547890 A CN111547890 A CN 111547890A CN 202010435524 A CN202010435524 A CN 202010435524A CN 111547890 A CN111547890 A CN 111547890A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- sewage
- treatment
- floating plate
- cable
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an automatic opening and closing sewage sedimentation treatment device, which relates to the technical field of sewage treatment tools and comprises a treatment barrel, wherein the top of the treatment barrel is communicated with a water inlet pipe, the bottom of the treatment barrel is communicated with a water outlet pipe, the top of the treatment barrel is fixedly connected with a medicine storage box, the bottom of the treatment barrel is fixedly connected with a sewage discharge groove, one end of the sewage discharge groove is provided with a sealing door, the bottom of the sewage discharge groove is fixedly connected with a plurality of fixing springs, one end of each fixing spring, which is far away from the sewage discharge groove, is fixedly connected with a same spring floating plate, a flocculating agent is filled in the medicine storage box, and the bottom of the medicine storage box is communicated with a communicating pipe. The effect of automatically closing water inlet is achieved.
Description
Technical Field
The invention relates to the technical field of sewage treatment tools, in particular to an automatic opening and closing sewage precipitation treatment device.
Background
Water is a vital resource for life and is the most important resource. With the continuous development of society, the attention on water resources is continuously increased, and particularly, the importance on the treatment of sewage is more important. In the sewage treatment process, the sewage is subjected to standing treatment in the first step, clear water at the middle upper part of the treatment tank is taken out for subsequent treatment, and in the standing treatment process, in order to improve the standing and settling rate of the sewage, a flocculating agent is generally added to flocculate and settle suspended particles in the sewage, so that the settling rate is accelerated, most impurities in the sewage are removed, and the burden is reduced for the subsequent treatment process. However, in the process of sewage sedimentation treatment, if sewage is continuously poured in, the standing effect can be broken, the sedimentation speed and the sedimentation effect are affected, if the standing sedimentation is finished manually, the sedimentation finishing time is not easy to be mastered, the interval between the two standing sedimentation times cannot be effectively reduced, and the sewage treatment speed is slowed down.
Disclosure of Invention
The invention provides an automatic on-off sewage precipitation treatment device, and aims to solve the problems that in the sewage precipitation treatment process in the traditional technology, if standing precipitation is finished manually, the precipitation finishing time is not easy to grasp, the time interval of two standing precipitation times cannot be effectively reduced, and the sewage treatment speed is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic opening and closing sewage precipitation treatment device comprises a treatment barrel, wherein the top of the treatment barrel is communicated with a water inlet pipe, the bottom of the treatment barrel is communicated with a water outlet pipe, the top of the treatment barrel is fixedly connected with a medicine storage box, the bottom of the treatment barrel is fixedly connected with a sewage discharge groove, one end of the sewage discharge groove is provided with a sealing door, the bottom of the sewage discharge groove is fixedly connected with a plurality of fixing springs, one ends of the fixing springs, far away from the sewage discharge groove, are fixedly connected with a same spring floating plate, the medicine storage box is internally filled with a flocculating agent, the bottom of the medicine storage box is communicated with a communicating pipe, the communicating pipe is provided with a valve, the treatment barrel is internally and coaxially and rotatably connected with a connecting rod, the connecting rod, far away from the two ends of the fixing shaft, are respectively and fixedly connected with a floating plate, the connecting rod sliding connection has the floater, floater one side fixedly connected with first cable, the ferryboat is walked around in first cable middle part and keep away from floater one end and be connected with the shrouding, the sealed sliding connection of shrouding just can seal the outlet pipe opening in the bottom on handling a section of thick bamboo inside wall.
Preferably, the water inlet pipe and the water outlet pipe are positioned on two sides of a vertical plane of the axis of the treatment cylinder, which is symmetrical about the axis; the drug storage box and the sewage discharge groove are positioned at two ends of a vertical plane where the axis of the treatment barrel is positioned; the transition wheel is positioned on one side, close to the water outlet pipe, of the horizontal plane where the axis of the treatment cylinder is positioned.
Preferably, a fixed shaft is coaxially and fixedly connected in the treatment barrel, and the middle part of the fixed shaft is rotatably connected with a connecting rod.
Preferably, the first inhaul cable is located between the transition wheel and the sealing plate, one end of the first inhaul cable is wound on the periphery of the rotating wheel, the rotating wheel is connected to the inner side wall of the treatment cylinder in a rotating mode through a rotating shaft, the two ends of the rotating wheel are fixedly connected to the inner side wall of the treatment cylinder, one end of the rotating wheel is far away from the coil spring, the two ends of the rotating wheel are reversely wound with the second inhaul cable, and one end of the rotating wheel is far away from the second inhaul cable, and the.
Preferably, the vertical section of the floating plate is sickle-shaped, the density of the floating plate is less than that of the sewage, and the density of the floating ball is between that of the sewage and that of the clean water.
Compared with the prior art, the invention has the following beneficial effects:
1. the sickle-shaped floating plate and the connecting rod are matched, sewage continuously enters the treatment cylinder along with the sickle-shaped floating plate, the sickle-shaped floating plate starts to rotate around the fixed shaft under the buoyancy effect of the sewage on the sickle-shaped floating plate, and when the sewage continuously enters the treatment cylinder through the water inlet pipe, the sickle-shaped floating plate rotates until the communication port of the water inlet pipe and the treatment cylinder is sealed, so that the effect of automatically closing water inlet is achieved.
2. The floating ball, the first cable, the transition wheel, the rotating wheel, the coil spring and the sealing plate are adopted, suspended particles of sewage in the treatment cylinder are flocculated by a flocculating agent and are subjected to standing and precipitating effects, when the sewage is changed into clear water, the density of the water is reduced, so that the sum of the gravity borne by the floating ball and the pulling force of the first cable is larger than the buoyancy of the water on the floating ball, the floating ball falls, the first cable is loosened, the coil spring begins to recover, the second cable is pulled to enable the sealing plate to open a communication port of a water outlet pipe and the treatment cylinder, and clear water begins to be discharged, and the purpose of automatic drainage is achieved.
3. In the drainage process, the spring floating plate floats under the buoyancy action of water on the spring floating plate through the connecting rod, the supporting block and the spring floating plate, the supporting block abuts against the spring floating plate at the moment, so that the sickle-shaped floating plate and the connecting rod keep the sealing of a communication port of the water inlet pipe and the treatment barrel, when the water level is lowered below the spring floating plate, the sickle-shaped floating plate and the connecting rod recover to the original position under the gravity, most of clear water is drained at the moment, and sludge falls into the sewage drainage tank.
To sum up, the device can automatically open and close the communication ports of the water inlet pipe, the water outlet pipe and the treatment cylinder, namely, automatically control the inlet and the outlet of the sewage in the treatment cylinder, and achieve the purpose of automatically carrying out standing and precipitating treatment on the sewage without intervals.
Drawings
FIG. 1 is a schematic structural diagram of an initial state of an automatic start-stop sewage precipitation treatment device provided by the invention;
FIG. 2 is an enlarged schematic view of part A in FIG. 1 of an automatic start-stop sewage precipitation treatment device according to the present invention;
FIG. 3 is an enlarged schematic view of part B in FIG. 1 of an automatic start-stop sewage precipitation treatment device according to the present invention;
FIG. 4 is an enlarged schematic view of a portion C in FIG. 1 of an automatic start-stop sewage precipitation treatment device according to the present invention;
FIG. 5 is a schematic structural diagram of a water inlet state of the automatic start-stop sewage precipitation treatment device provided by the invention;
FIG. 6 is a schematic structural diagram of a full water state of the automatic on-off sewage precipitation treatment device provided by the present invention;
FIG. 7 is a schematic view of an intermediate drainage state of an automatic start-stop sewage precipitation treatment device according to the present invention;
FIG. 8 is a schematic view of a structure of a sewage disposal device according to the present invention in a drainage completion state;
FIG. 9 is a schematic structural view of a sealing door of an automatic opening and closing sewage sedimentation treatment device according to the present invention.
In the figure: 1 treatment cylinder, 2 water inlet pipes, 3 water outlet pipes, 4 fixing shafts, 5 connecting rods, 51 supporting blocks, 6 floating plates, 7 floating balls, 8 medicine storage boxes, 9 communicating pipes, 10 first pull cables, 11 rotating wheels, 12 coil springs, 13 sealing plates, 131 second pull cables, 14 sewage discharge grooves, 15 sealing doors, 16 transition wheels, 17 spring floating plates and 18 fixing springs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-8, an automatic opening and closing sewage sedimentation treatment device comprises a treatment barrel 1, wherein the top of the treatment barrel 1 is communicated with a water inlet pipe 2, the bottom of the treatment barrel 1 is communicated with a water outlet pipe 3, the water inlet pipe 2 and the water outlet pipe 3 are positioned on two sides of a vertical plane where the axis of the treatment barrel 1 is positioned, which are symmetrical about the axis, and when a floating plate 6 seals a communication port of the water inlet pipe 2 and the treatment barrel 1, a medicine storage box 8 cannot be completely submerged.
The top of the treatment barrel 1 is fixedly connected with a medicine storage box 8, the bottom of the treatment barrel is fixedly connected with a sewage discharge groove 14, and the medicine storage box 8 and the sewage discharge groove 14 are positioned at two ends of a vertical plane where the axis of the treatment barrel 1 is positioned.
The flocculant is contained in the drug storage box 8, the bottom of the drug storage box is communicated with a communicating pipe 9, and a valve is arranged on the communicating pipe 9 to control the flocculant to enter the treatment cylinder 1.
One end of the sewage discharge groove 14 is provided with a sealing door 15, and when the sludge is more, the sealing door 15 can be opened for direct cleaning.
The bottom of the sewage discharging groove 14 is fixedly connected with a plurality of fixing springs 18, one end of each fixing spring 18, far away from the sewage discharging groove 14, is fixedly connected with the same spring floating plate 17, and the floating spring floating plate 17 supports the supporting block 51 during water discharging.
The fixed shaft 4 is coaxially and fixedly connected in the treatment barrel 1, the connecting rod 5 is rotatably connected in the middle of the fixed shaft 4, the connecting rod 5 is far away from two ends of the fixed shaft 4 and is fixedly connected with the floating plate 6 and the supporting block 51 respectively, the supporting block 51 can be attached to the upper surface of the spring floating plate 17 when rotating to the bottommost part, and the floating plate 6 is prevented from falling down to influence drainage when drainage is carried out.
Coaxial rotation is connected with connecting rod 5 in treating a section of thick bamboo 1, and connecting rod 5 is kept away from the same kickboard 6 of 4 one end fixedly connected with of fixed axle, and kickboard 6 keeps away from 5 one sides of connecting rod and pastes and lean on treating a section of thick bamboo 1 inside wall and can seal inlet tube 2 opening, and the vertical cross-section of kickboard 6 is sickle-shaped, and 6 densities of kickboard are less than sewage density, rise and float along with sewage water level in treating a section of thick bamboo 1, finally seal the intercommunication mouth of inlet tube 2 and treatment section of thick bamboo 1.
The connecting rod 5 is connected with a floating ball 7 in a sliding way, the density of the floating ball 7 is between the sewage density and the clear water density, and the floating ball falls down after the sewage is converted into the clear water.
Float 7 one side fixedly connected with first cable 10, first cable 10 middle part is walked around ferryboat 16, and ferryboat 16 is located and is handled a 1 axis place horizontal plane and be close to outlet pipe 3 one side, and shrouding 13 sealed sliding connection just can seal the outlet pipe 3 opening in the bottom on handling a 1 inside wall.
When the float 7 falls, the first cable 10 is loosened, the coil spring 12 starts to recover, and the second cable 131 is pulled to open the communication port between the water outlet pipe 3 and the treatment tube 1 through the closing plate 13, so that clean water starts to be discharged.
The principle of an embodiment of the present invention will now be described as follows:
firstly, as shown in fig. 5, when sewage continuously enters the treatment cylinder 1 through the water inlet pipe 2, the sickle-shaped floating plate 6 starts to rotate around the fixed shaft 4 under the buoyancy action of the sewage on the sickle-shaped floating plate 6;
as shown in fig. 6, the sickle-shaped floating plate 6 rotates until the communication port of the water inlet pipe 2 and the treatment cylinder 1 is sealed, so that the effect of automatically closing the water inlet is achieved;
at the moment, a valve on the communicating pipe 9 is opened, partial flocculating agent is released, sewage is changed into clear water under the flocculating agent flocculation and standing precipitation effects, so that the sum of the gravity borne by the floating ball 7 and the pulling force of the first pull rope 10 is larger than the buoyancy of water on the floating ball 7, the floating ball 7 falls, the first pull rope 10 is loosened, the coil spring 12 starts to recover and pulls the second pull rope 131 to enable the sealing plate 13 to open a communication port between the water outlet pipe 3 and the treatment cylinder 1, clear water starts to be discharged, and the purpose of automatic water drainage is achieved;
as shown in fig. 7, in the drainage process, due to the buoyancy of water to the spring floating plate 17, the spring floating plate 17 floats, and at this time, the supporting block 51 abuts against the spring floating plate 17, so that the sickle-shaped floating plate 6 keeps the sealing of the communication port of the water inlet pipe 2 and the treatment cylinder 1;
when the water level drops below the spring floating plate 17 as shown in fig. 8, the sickle-shaped floating plate 6 and the connecting rod 5 are restored to the original position under the gravity, most of clear water is discharged at the moment, sludge falls into the sewage discharge groove 14 as shown in fig. 9, and when the sludge is more, the sealing door 15 can be opened to directly clean the sludge.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a from opening and close sewage sedimentation treatment device, includes a processing section of thick bamboo (1), its characterized in that, a processing section of thick bamboo (1) top intercommunication has inlet tube (2) and bottom intercommunication has outlet pipe (3), a processing section of thick bamboo (1) top fixedly connected with medicine storage box (8) and bottom fixedly connected with blowdown groove (14), sealing door (15) are installed to blowdown groove (14) one end, a plurality of fixed spring (18) of blowdown groove (14) bottom fixedly connected with, a plurality of fixed spring (18) keep away from blowdown groove (14) one end fixedly connected with same spring floating plate (17), fill flocculating agent in medicine storage box (8) and bottom intercommunication have communicating pipe (9), install the valve on communicating pipe (9), a processing section of thick bamboo (1) interior coaxial rotation is connected with connecting rod (5), connecting rod (5) keep away from fixed axle (4) both ends fixedly connected with floating plate (6) and supporting shoe (51) respectively, supporting shoe (51) rotate and paste when bottommost and lean on spring floating plate (17) upper surface, connecting rod (5) one side subsides are kept away from in floating plate (6) and lean on processing section of thick bamboo (1) inside wall and can seal inlet tube (2) opening, connecting rod (5) sliding connection has floater (7), floater (7) one side fixedly connected with first cable (10), ferryboat (16) are walked around and floater (7) one end is kept away from in first cable (10) middle part is connected with shrouding (13), shrouding (13) sealed sliding connection just the bottom can seal outlet pipe (3) opening on processing section of thick bamboo (1) inside wall.
2. The automatic opening and closing sewage sedimentation treatment device according to claim 1, wherein the water inlet pipe (2) and the water outlet pipe (3) are positioned on two sides of a vertical plane where the axis of the treatment cylinder (1) is positioned, which are symmetrical about the axis; the medicine storage box (8) and the sewage discharge groove (14) are positioned at two ends of a vertical plane where the axis of the treatment barrel (1) is positioned; the transition wheel (16) is positioned on one side of the horizontal plane where the axis of the treatment cylinder (1) is positioned, which is close to the water outlet pipe (3).
3. The automatic opening and closing sewage precipitation treatment device according to claim 1, wherein a fixed shaft (4) is coaxially and fixedly connected in the treatment cylinder (1), and a connecting rod (5) is rotatably connected in the middle of the fixed shaft (4).
4. The automatic opening and closing sewage sedimentation treatment device according to claim 1, wherein the first cable (10) is located between the transition wheel (16) and the closing plate (13) and one end of the first cable is wound around the outer circumferential side of the rotating wheel (11), the rotating wheel (11) is rotatably connected to the inner side wall of the treatment cylinder (1) through a rotating shaft, the two ends of the rotating wheel (11) are fixedly connected with a coil spring (12), one end of the coil spring (12) far away from the rotating wheel (11) is fixedly connected to the inner side wall of the treatment cylinder (1), the two ends of the rotating wheel (11) are reversely wound with a second cable (131), and one end of the second cable (131) far away from the rotating wheel (11) is fixedly connected to the closing plate (13).
5. An automatic on-off sewage precipitation treatment device according to claim 1, characterized in that the vertical section of the floating plate (6) is sickle-shaped, the density of the floating plate (6) is less than the sewage density, and the density of the floating ball (7) is between the sewage density and the clear water density.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010435524.9A CN111547890A (en) | 2020-05-21 | 2020-05-21 | Automatic opening and closing sewage precipitation treatment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010435524.9A CN111547890A (en) | 2020-05-21 | 2020-05-21 | Automatic opening and closing sewage precipitation treatment device |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111547890A true CN111547890A (en) | 2020-08-18 |
Family
ID=71999020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010435524.9A Withdrawn CN111547890A (en) | 2020-05-21 | 2020-05-21 | Automatic opening and closing sewage precipitation treatment device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111547890A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112208959A (en) * | 2020-09-16 | 2021-01-12 | 衢州英特高分子材料有限公司 | Solid-liquid different-opening discharge type storage tank |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB727861A (en) * | 1953-06-13 | 1955-04-06 | John Gibson & Son Ltd | Improvements in or relating to refuse-collecting vehicles |
CN204212251U (en) * | 2014-10-24 | 2015-03-18 | 杭州中艺园林工程有限公司 | A kind of manhole that catchments being exclusively used in artificial swamp |
CN106522345A (en) * | 2016-11-28 | 2017-03-22 | 武汉市政工程设计研究院有限责任公司 | Automatic initial rainwater interception type rainwater inlet device |
CN106884411A (en) * | 2017-03-31 | 2017-06-23 | 上海勘测设计研究院有限公司 | Reservoir bank ecological protection system |
CN209668820U (en) * | 2018-12-18 | 2019-11-22 | 湖北再洪标准件有限公司 | A kind of preceding electrochemical deoiling liquid separating apparatus of screw plating |
-
2020
- 2020-05-21 CN CN202010435524.9A patent/CN111547890A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB727861A (en) * | 1953-06-13 | 1955-04-06 | John Gibson & Son Ltd | Improvements in or relating to refuse-collecting vehicles |
CN204212251U (en) * | 2014-10-24 | 2015-03-18 | 杭州中艺园林工程有限公司 | A kind of manhole that catchments being exclusively used in artificial swamp |
CN106522345A (en) * | 2016-11-28 | 2017-03-22 | 武汉市政工程设计研究院有限责任公司 | Automatic initial rainwater interception type rainwater inlet device |
CN106884411A (en) * | 2017-03-31 | 2017-06-23 | 上海勘测设计研究院有限公司 | Reservoir bank ecological protection system |
CN209668820U (en) * | 2018-12-18 | 2019-11-22 | 湖北再洪标准件有限公司 | A kind of preceding electrochemical deoiling liquid separating apparatus of screw plating |
Non-Patent Citations (1)
Title |
---|
陆德民主编: "《石油化工自动控制设计手册(第三版)》", 31 January 2000, 化学工业出版社 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112208959A (en) * | 2020-09-16 | 2021-01-12 | 衢州英特高分子材料有限公司 | Solid-liquid different-opening discharge type storage tank |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206804341U (en) | A kind of underground water-sampling device | |
CN215721687U (en) | Water delivery pipeline for hydraulic engineering | |
CN210177656U (en) | Water flow control system for urban drainage | |
CN110670818A (en) | Urban rainfall drainage processing system and rainfall drainage processing method thereof | |
CN113413644A (en) | Sedimentation device for drinking water treatment | |
CN111547890A (en) | Automatic opening and closing sewage precipitation treatment device | |
CN211527908U (en) | Portable silt sampling device for hydraulic engineering | |
CN117779716B (en) | Marine garbage collection device for marine ecological restoration based on underwater robot | |
CN206304418U (en) | A kind of energy-saving sewage treating device | |
CN209276228U (en) | Water injection type microkinetic water decanter | |
CN211056796U (en) | Self-floating decanter | |
CN211536649U (en) | Improvement type vertical flow deposits device | |
CN207047601U (en) | A kind of paper pulp automatic water-filtering device | |
CN214612321U (en) | Fully-closed oil tank dewatering system | |
CN205856102U (en) | A kind of potential energy reoxygenation sewage disposal water level control apparatus | |
CN208684501U (en) | A kind of sewage treatment multi stage precipitation device | |
CN111569477B (en) | Bury formula silt for sewage treatment machine and assemble hoisting device | |
CN100384749C (en) | Self-adjusting dry-wet alternated parallel-operation water tank system | |
CN210825515U (en) | Immersion type blue algae collecting and dewatering platform | |
CN209092784U (en) | A kind of azelaic acid sewage treatment settling tank | |
CN210367318U (en) | Oil-separating sand-settling device for sewage of villages and towns | |
CN204608971U (en) | Anti counter-flowing Hydro-automatic gate | |
CN206886786U (en) | A kind of water-supply apparatus for potential energy reoxygenation sewage disposal system | |
CN210797696U (en) | River channel dredging device | |
CN220184191U (en) | Quick drainage device for dredging residual water |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200818 |