CN107781475A - A kind of anti-overflow protection device - Google Patents
A kind of anti-overflow protection device Download PDFInfo
- Publication number
- CN107781475A CN107781475A CN201710794547.7A CN201710794547A CN107781475A CN 107781475 A CN107781475 A CN 107781475A CN 201710794547 A CN201710794547 A CN 201710794547A CN 107781475 A CN107781475 A CN 107781475A
- Authority
- CN
- China
- Prior art keywords
- tank
- sensor
- water
- protection device
- water level
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
- F16K21/18—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level
- F16K21/185—Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level with electrical or magnetical means, e.g. with magnetic floats, for sensing the liquid level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Level Indicators Using A Float (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of anti-overflow protection device; including tap, tank and outlet device; tap is arranged above tank; outlet device is arranged at bottom of gullet, in addition to level sensor, controller and magnetic valve, and tank is provided with maximum water level and water level monitoring mouth; level sensor is arranged on the outside of water level monitoring mouth; magnetic valve is arranged on the pipeline of the water inlet pipe of tap, and level sensor is connected with controller input, and controller output end is connected with magnetic valve.Liquid level can automatically cut off water supply after reaching maximum stage line in tank of the present invention, prevent water from overflowing tank, avoid water-pipe blockage, reduce the waste of water resource, with a variety of water level monitoring modes, user can arbitrarily select a kind of level sensor, and simple in construction, convenient disassembly.
Description
Technical field
The present invention relates to a kind of anti-overflow device of water, more particularly to a kind of anti-overflow protection device.
Background technology
Tap and tank are the indispensable facilities in daily life, and it is greatly convenient to have brought.But make now
Tank is in the prevalence of unavoidable problem, such as opens after tap, valve, it is necessary to keep before tap, waits until
When water level reaches required position, manual-lock is carried out.If there is urgent feelings when so not only losing time, and discharging water
Condition be have left and forget to close tap, valve, then water will be caused to be overflowed from tank, unnecessary waste is caused, can also
Influence indoor clean and tidy health；Or forget to turn off the tap due to cutting off the water and valve, at home in the case of nobody, cut off the water and
After water, current effluent trough causes to waste, or even water logging occurs and causes any property loss, and the serious is be also possible to bring disaster to
Others' family, causes more serious loss.
Solves hydraulic overflow problem typically by spillway hole in the prior art, spillway hole refers to specific in the container being filled with water
Apopore in height, water can flow out after exceeding this height from hole.Prevent water spill-over from causing other losses.General spillway hole and row
Water hole communicates, and can will will diffuse out the water importing downcomer come, still to offer spilling water on tank so as to prevent water from overflowing
Hole can influence the globality of tank, and spillway hole content tends to have bacterium residual.
Therefore, it is necessary to which water supply can be automatically cut off by designing one kind after liquid level reach a certain height in tank, solves water
Blockage, prevent water from overflowing tank, reduce the waste of water resource, avoid damaging chamber components, protect the anti-overflow of personal safety
Protection device.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of anti-overflow protection device, including tap, tank and under
Hydrophone, the tap are arranged above the tank, and the outlet device is arranged at the bottom of gullet,
Also include level sensor, controller and magnetic valve, the tank is provided with maximum water level and water level monitoring mouth, described
Level sensor is arranged on the outside of the water level monitoring mouth, and the magnetic valve is arranged on the pipeline of the leading water inlet pipe,
The level sensor is connected with the controller input, and the controller output end is connected with the magnetic valve.
Further, the level sensor is probe sensor, float-type transmitter, pressure type sensor, weighed
Sensor, ultrasonic sensor or laser sensor.
Further, the level sensor is probe sensor, and the probe sensor includes nut, fast grafting
Head, sebific duct, metal probe and locking nut.
Further, the nut is arranged at the sink outer walls, and the nut coaxial threaded installs the quick connector,
The metal probe is coaxially inserted in the quick connector, described metal probe one end is intraoral located at the water level monitoring, another
End is connected with the locking nut, and the metal probe is sheathed in the sebific duct.
Further, the water level monitoring mouth is provided with screen pack close to the side of the inboard wall of cistern.
Further, the level sensor is connected with alarm, and alarming horn or instruction are provided with the alarm
Lamp.
Further, the magnetic valve is provided with SR, and the magnetic valve is normal open state.
Preferably, the controller is PLC.
Implement the present invention, have the advantages that：
（1）The level sensor of anti-overflow protection device of the present invention is arranged at sink outer walls, and magnetic valve is arranged at the water inlet of tap
On the pipeline of pipe, liquid level can automatically cut off water supply after reaching maximum stage line in tank, prevent water from overflowing tank, avoid water pipe
Block, reduce the waste of water resource, avoid damaging chamber components, protect the anti-overflow protection device of personal safety.
（2）Level sensor of the present invention is probe sensor, float-type transmitter, pressure type sensor, weighing and sensing
Device, ultrasonic sensor or laser sensor, have a variety of water level monitoring modes, and user can arbitrarily select a kind of level sensor
Device.
（3）The present invention anti-overflow protection device is simple in construction, volume compact and reliable operation, convenient disassembly, practicality
By force.
Brief description of the drawings
, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme
The accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only embodiments of the invention, for this
For the those of ordinary skill of field, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the stereogram of anti-overflow protection device of the present invention；
Fig. 2 is the structural representation of anti-overflow protection device of the present invention；
Fig. 3 is the structural representation of the magnetic valve of anti-overflow protection device of the present invention.
Wherein, reference corresponds in figure：1- taps, 2- tanks, 21- maximum water levels, 22- water level monitoring mouths, 23-
Screen pack, 3- outlet devices, 4- level sensors, 5- controllers, 6- magnetic valves, 61- SRs.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in example is applied to the present invention and is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made,
Belong to the scope of protection of the invention.
Embodiment one
Refer to Fig. 1-3.As Figure 1-3, the invention discloses a kind of anti-overflow protection device, including tap 1, the and of tank 2
Outlet device 3, described leading 1 is arranged at the top of tank 2, and the outlet device 3 is arranged at the bottom of tank 2,
Also include level sensor 4, controller 5 and magnetic valve 6, the level sensor 4 is arranged at the outer wall of tank 2, institute
State magnetic valve 6 to be arranged on the pipeline of leading 1 water inlet pipe, the level sensor 4 connects with the input of controller 5
Connect, the output end of controller 5 is connected with the magnetic valve 6, and the magnetic valve 6 is provided with SR 61, the magnetic valve 6
For normal open state.The controller 5 is PLC.
The inwall of tank 2 is provided with maximum water level 21, and water level monitoring mouth 22, the water level are offered on the tank 2
The level height of detection mouth 22 is higher than the level height of the maximum water level 21.The water level monitoring mouth 22 is close to the tank
The side of 2 inwalls is provided with screen pack 23.It is waterline labeling, the waterline labeling and institute to be provided with the maximum water level 21
Level sensor 4 is stated to connect.
The level sensor 4 is fixedly installed on the periphery of water level monitoring mouth 22.The level sensor 4 and alarm
Connect, alarming horn or indicator lamp are installed on the alarm.The level sensor 4 is probe sensor, the spy
Needle sensor includes nut, quick connector, sebific duct, metal probe and locking nut.The nut is arranged at the tank 2
Outer wall, the nut coaxial threaded installs the quick connector, the metal probe is coaxially inserted in the quick connector, described
Metal probe one end is in the water level monitoring mouth 22, and the other end is connected with the locking nut, and the metal probe is arranged
In in the sebific duct.
The level sensor 4 can also be float-type transmitter, pressure type sensor, weighing sensor, ultrasonic wave biography
Sensor or laser sensor.
Embodiment two
The invention discloses a kind of anti-overflow protection device, including tap 1, tank 2 and outlet device 3, described leading 1 is arranged at institute
The top of tank 2 is stated, the outlet device 3 is arranged at the bottom of tank 2, in addition to level sensor 4, controller 5 and magnetic valve
6, the level sensor 4 is arranged at the outer wall of tank 2, and the magnetic valve 6 is arranged at the pipeline of leading 1 water inlet pipe
On, the level sensor 4 is connected with the input of controller 5, and the output end of controller 5 is connected with the magnetic valve 6,
The magnetic valve 6 is provided with SR 61, and the magnetic valve 6 is normal open state.The controller 5 is PLC.
The inwall of tank 2 is provided with maximum water level 21, and water level monitoring mouth 22, the water level are offered on the tank 2
Detection mouth 22 is circular hole, and the level height of the water level detecting mouth 22 is higher than the level height of the maximum water level 21.
The level sensor 4 is fixedly installed on the periphery of water level monitoring mouth 22.The level sensor 4 and alarm
Connect, alarming horn or indicator lamp are installed on the alarm.
The level sensor 4 is probe sensor.The probe sensor is arranged in the tank 2, described
It is waterline labeling to be provided with maximum water level 21, and the waterline labeling is connected with the level sensor 4.The probe-type
Sensor includes nut, quick connector, sebific duct, metal probe and locking nut.The nut is arranged at the outer wall of tank 2,
The nut coaxial threaded installs the quick connector, and the metal probe, the metal are coaxially inserted in the quick connector
Probe one end is in the water level monitoring mouth 22, and the other end is connected with the locking nut, and the metal probe is sheathed on institute
State in sebific duct.
The water level monitoring mouth 22 is provided with screen pack 23 close to the side of the inwall of tank 2.The screen pack 23 is more
Layer screen pack.
Embodiment three
The invention discloses a kind of anti-overflow protection device, including tap 1, tank 2 and outlet device 3, described leading 1 is arranged at institute
The top of tank 2 is stated, the outlet device 3 is removable installed in the bottom of tank 2,
Also include level sensor 4, controller 5 and magnetic valve 6, the level sensor 4 is arranged at the outer wall of tank 2, institute
State magnetic valve 6 to be arranged on the pipeline of leading 1 water inlet pipe, the level sensor 4 connects with the input of controller 5
Connect, the output end of controller 5 is connected with the magnetic valve 6, and the controller 5 is PLC.
The inwall of tank 2 is provided with maximum water level 21, and the maximum water level 21 can move up and down, on the tank 2
Water level monitoring mouth 22 is offered, the water level monitoring mouth 22 can move up and down, and the level height of the water level detecting mouth 22 is higher than
The level height of the maximum water level 21.The water level monitoring mouth 22 is provided with screen pack close to the side of the inwall of tank 2
23。
The level sensor 4 is fixedly installed on the periphery of water level monitoring mouth 22.The level sensor 4 is float-type
Sensor.The float-type transmitter is arranged at the water level monitoring mouth 22, and it is water level to be provided with the maximum water level 21
Line labeling, the waterline labeling are connected with the level sensor 4.The level sensor 4 is connected with alarm, the report
Alarming horn or indicator lamp are installed on alert device.The magnetic valve 6 is provided with SR 61, and the magnetic valve 6 is normal open shape
State.
Example IV
The invention discloses a kind of anti-overflow protection device, including tap 1, tank 2 and outlet device 3, described leading 1 is arranged at institute
The top of tank 2 is stated, the outlet device 3 is arranged at the bottom of tank 2, in addition to level sensor 4, controller 5 and magnetic valve
6, the level sensor 4 is arranged at the outer wall of tank 2, and the magnetic valve 6 is arranged at the pipeline of leading 1 water inlet pipe
On, the level sensor 4 is connected with the input of controller 5, and the output end of controller 5 is connected with the magnetic valve 6,
The magnetic valve 6 is provided with SR 61, and the magnetic valve 6 is normal open state.The controller 5 is PLC.
The inwall of tank 2 is provided with maximum water level 21, and water level monitoring mouth 22, the water level are offered on the tank 2
The level height of detection mouth 22 is higher than the level height of the maximum water level 21.It is water level to be provided with the maximum water level 21
Line labeling, the waterline labeling are connected with the level sensor 4.
The level sensor 4 is fixedly installed on the periphery of water level monitoring mouth 22.The level sensor 4 and alarm
Connect, alarming horn or indicator lamp are installed on the alarm.
The level sensor 4 is weighing sensor.One end of the weighing sensor is arranged at the groove of the tank 2
Bottom, the other end are arranged at the water level detecting mouth 22.The water level monitoring mouth 22 is provided with close to the side of the inwall of tank 2
Screen pack 23.
Implement the present invention, have the advantages that：
（1）The level sensor of anti-overflow protection device of the present invention is arranged at sink outer walls, and magnetic valve is arranged at the water inlet of tap
On the pipeline of pipe, liquid level can automatically cut off water supply after reaching maximum stage line in tank, prevent water from overflowing tank, avoid water pipe
Block, reduce the waste of water resource, avoid damaging chamber components, protect the anti-overflow protection device of personal safety.
（2）Level sensor of the present invention is probe sensor, float-type transmitter, pressure type sensor, weighing and sensing
Device, ultrasonic sensor or laser sensor, have a variety of water level monitoring modes, and user can arbitrarily select a kind of level sensor
Device.
（3）The present invention anti-overflow protection device is simple in construction, volume compact and reliable operation, convenient disassembly, practicality
By force.
Described above is the preferred embodiment of the present invention, it should be noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (8)
1. a kind of anti-overflow protection device, including tap（1）, tank（2）And outlet device（3）, the tap（1）It is arranged at described
Tank（2）Top, the outlet device（3）It is arranged at the tank（2）Bottom, it is characterised in that
Also include level sensor（4）, controller（5）And magnetic valve（6）,
The tank（2）It is provided with maximum water level（21）With water level monitoring mouth（22）, the level sensor（4）It is arranged at institute
State water level monitoring mouth（22）Outside, the magnetic valve（6）It is arranged at the tap（1）On the pipeline of water inlet pipe,
The level sensor（4）With the controller（5）Input connects, the controller（5）Output end and the electromagnetism
Valve（6）Connection.
2. anti-overflow protection device according to claim 1, it is characterised in that the level sensor（4）For probe-type
Sensor, float-type transmitter, pressure type sensor, weighing sensor, ultrasonic sensor or laser sensor.
3. anti-overflow protection device according to claim 2, it is characterised in that the level sensor（4）For probe-type
Sensor, the probe sensor include nut, quick connector, sebific duct, metal probe and locking nut.
4. anti-overflow protection device according to claim 3, it is characterised in that the nut is arranged at the tank（2）
Outer wall, the nut coaxial threaded installs the quick connector, the metal probe is coaxially inserted in the quick connector, described
Metal probe one end is located at the water level monitoring mouth（22）Interior, the other end is connected with the locking nut, the metal probe set
In the sebific duct.
5. anti-overflow protection device according to claim 1, it is characterised in that the water level monitoring mouth（22）Close to described
Tank（2）The side of inwall is provided with screen pack（23）.
6. anti-overflow protection device according to claim 4, it is characterised in that the level sensor（4）With alarm
Connect, alarming horn or indicator lamp are installed on the alarm.
7. anti-overflow protection device according to claim 1, it is characterised in that the magnetic valve（6）Pressed provided with reset
Button（61）, the magnetic valve（6）For normal open state.
8. anti-overflow protection device according to claim 1, it is characterised in that the controller（5）For PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794547.7A CN107781475A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-overflow protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710794547.7A CN107781475A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-overflow protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107781475A true CN107781475A (en) | 2018-03-09 |
Family
ID=61437850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710794547.7A Pending CN107781475A (en) | 2017-09-06 | 2017-09-06 | A kind of anti-overflow protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107781475A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730342A (en) * | 2019-03-21 | 2019-05-10 | 浙江气派智能科技有限公司 | A kind of method for cleaning fruit/vegetable applied to cleaning machine |
| CN109730343A (en) * | 2019-03-21 | 2019-05-10 | 浙江气派智能科技有限公司 | A kind of method for cleaning fruit/vegetable of cleaning machine |
| CN110670674A (en) * | 2019-10-10 | 2020-01-10 | 溆浦易锋精细瓷业有限责任公司 | Self-cleaning ceramic counter basin |
| CN111321788A (en) * | 2020-03-11 | 2020-06-23 | 厦门帝恒诺卫浴科技有限公司 | Anti-overflow structure of toilet bowl and control method thereof |
| CN112460316A (en) * | 2020-11-24 | 2021-03-09 | 姜杨 | Water level height detection system |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691769A (en) * | 2009-09-09 | 2010-04-07 | 吴雨润 | Auto-induction water saving control device |
| CN201581454U (en) * | 2009-12-28 | 2010-09-15 | 中国农业大学 | Basin overflow alarming and water-interception device |
| US8065759B2 (en) * | 2007-03-29 | 2011-11-29 | Robert McClain | McClain's bathtub monitor |
| CN203117802U (en) * | 2013-03-16 | 2013-08-07 | 赵俊杰 | Automatic overflowing resistant device of household water tank |
| CN203276045U (en) * | 2013-06-03 | 2013-11-06 | 绍兴西曼生活电器有限公司 | Water tank electronic control system |
| CN103393367A (en) * | 2013-07-23 | 2013-11-20 | 苏州卫生职业技术学院 | Automatic bathtub with function of ultrasonic water level measurement and control |
| CN203710372U (en) * | 2013-12-12 | 2014-07-16 | 天津三延精密机械有限公司 | Automatic thickener water tank with water level limiting structure |
| CN204241980U (en) * | 2014-10-24 | 2015-04-01 | 李双成 | The anti-overflow cistern of a kind of Household intelligent |
| CN204435486U (en) * | 2014-12-30 | 2015-07-01 | 科勒(中国)投资有限公司 | Bathtub and bathtub water inlet device |
| CN204590181U (en) * | 2015-04-03 | 2015-08-26 | 浙江爱尔卡厨卫科技有限公司 | A kind of water saving tank |
| CN205369396U (en) * | 2015-12-26 | 2016-07-06 | 昆达电脑科技(昆山)有限公司 | Basin overflow protection device |
| CN205839881U (en) * | 2016-05-31 | 2016-12-28 | 邹斯鹏 | A kind of new type auto water-break type hand washing sink |
| CN106641375A (en) * | 2016-11-28 | 2017-05-10 | 张德龙 | Electronic control washing device |
-
2017
- 2017-09-06 CN CN201710794547.7A patent/CN107781475A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8065759B2 (en) * | 2007-03-29 | 2011-11-29 | Robert McClain | McClain's bathtub monitor |
| CN101691769A (en) * | 2009-09-09 | 2010-04-07 | 吴雨润 | Auto-induction water saving control device |
| CN201581454U (en) * | 2009-12-28 | 2010-09-15 | 中国农业大学 | Basin overflow alarming and water-interception device |
| CN203117802U (en) * | 2013-03-16 | 2013-08-07 | 赵俊杰 | Automatic overflowing resistant device of household water tank |
| CN203276045U (en) * | 2013-06-03 | 2013-11-06 | 绍兴西曼生活电器有限公司 | Water tank electronic control system |
| CN103393367A (en) * | 2013-07-23 | 2013-11-20 | 苏州卫生职业技术学院 | Automatic bathtub with function of ultrasonic water level measurement and control |
| CN203710372U (en) * | 2013-12-12 | 2014-07-16 | 天津三延精密机械有限公司 | Automatic thickener water tank with water level limiting structure |
| CN204241980U (en) * | 2014-10-24 | 2015-04-01 | 李双成 | The anti-overflow cistern of a kind of Household intelligent |
| CN204435486U (en) * | 2014-12-30 | 2015-07-01 | 科勒(中国)投资有限公司 | Bathtub and bathtub water inlet device |
| CN204590181U (en) * | 2015-04-03 | 2015-08-26 | 浙江爱尔卡厨卫科技有限公司 | A kind of water saving tank |
| CN205369396U (en) * | 2015-12-26 | 2016-07-06 | 昆达电脑科技(昆山)有限公司 | Basin overflow protection device |
| CN205839881U (en) * | 2016-05-31 | 2016-12-28 | 邹斯鹏 | A kind of new type auto water-break type hand washing sink |
| CN106641375A (en) * | 2016-11-28 | 2017-05-10 | 张德龙 | Electronic control washing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109730342A (en) * | 2019-03-21 | 2019-05-10 | 浙江气派智能科技有限公司 | A kind of method for cleaning fruit/vegetable applied to cleaning machine |
| CN109730343A (en) * | 2019-03-21 | 2019-05-10 | 浙江气派智能科技有限公司 | A kind of method for cleaning fruit/vegetable of cleaning machine |
| CN110670674A (en) * | 2019-10-10 | 2020-01-10 | 溆浦易锋精细瓷业有限责任公司 | Self-cleaning ceramic counter basin |
| CN111321788A (en) * | 2020-03-11 | 2020-06-23 | 厦门帝恒诺卫浴科技有限公司 | Anti-overflow structure of toilet bowl and control method thereof |
| CN112460316A (en) * | 2020-11-24 | 2021-03-09 | 姜杨 | Water level height detection system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180309 |
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| RJ01 | Rejection of invention patent application after publication |