CN106246960A - A kind of check valve being applicable to high-corrosion medium - Google Patents
A kind of check valve being applicable to high-corrosion medium Download PDFInfo
- Publication number
- CN106246960A CN106246960A CN201610741094.7A CN201610741094A CN106246960A CN 106246960 A CN106246960 A CN 106246960A CN 201610741094 A CN201610741094 A CN 201610741094A CN 106246960 A CN106246960 A CN 106246960A
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- Prior art keywords
- valve
- valve body
- spring
- head
- outlet
- 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
- 238000005260 corrosion Methods 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 230000008676 import Effects 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 14
- 230000007797 corrosion Effects 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 230000013011 mating Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 230000002463 transducing effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 description 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
- F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
-
- 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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- 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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/04—Arrangements for preventing erosion, not otherwise provided for
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses kind of the check valve being applicable to high-corrosion medium, including import valve body, outlet valve body, valve seat, import valve body is connected with outlet valve body, it is provided with a valve seat between the junction point of import valve body and outlet valve body, valve seat is connected with the valve head being positioned at outlet valve body, and valve head uses PTFE material to make；Described valve head is sealing surface with the contact surface of valve seat, and sealing surface is set to blade type shape；Being additionally provided with a spring A at outlet valve inner, spring A is between valve head and outlet valve body, and one end of spring A is fixed at the runner mouth of outlet valve body；Being additionally provided with a spring B at valve head interior, spring B is between sealing surface and spring A；It is additionally provided with one layer of low-temperature corrosion protection coating at valve head and valve base surface.Advantages of the present invention: solving in low temperature, corrosive atmosphere, valve is short for service life, and for obtaining good sealing effectiveness, the problem that the seal pressure of needs is excessive.
Description
Technical field
The present invention relates to valve field, relate in particular to a kind of check valve being applicable to high-corrosion medium.
Background technology
Valve is control parts in pipeline fluid induction system, is used for changing path section and media flow direction, has
Water conservancy diversion, end, throttle, non-return, the function such as shunting or overflow release.The valve controlled for fluid, can be used for controlling water, steaming
The all kinds such as vapour, oil product, gas, mud, various Korrosionsmedium, liquid metal and radioactive fluid fluidly flow, valve
The operating pressure of door can supertension from 0.0013MPa to 1000MPa, operating temperature can arrive with the ultralow temperature of c-270 DEG C
The high temperature of 1430 DEG C.The control of valve can use the multiple kind of drive, as manually, electrically, surge, pneumatic, turbine, electromagnetic driven,
Electromagnetism surges, electro-hydraulic dynamic, air-or liquid-operated, spur gear, bevel gear driving etc.；Can be at pressure, temperature or other form transducing signal
Effect under, by predetermined requirement action, or be independent of transducing signal and be simply turned on and off, valve rely on
Drive or automechanism makes opening and closing element lift, sliding, swing or gyration, thus change the size of its flow area with reality
Existing its controls function.
The major function of check valve is when system pressure occurs abnormal, the system of protection upstream；To artificial the setting of valve
Putting a force value, when upstream pressure is more than this value of setting, valve is opened, and medium flows to downstream from upstream；Instantly swim out of existing
Time abnormal, in order to protect the system of upstream, closed check valve, it is ensured that the safety of up-stream system；In prior art, valve is typically adopted
With rubber as sealed material, although rubber has good elasticity, relatively low hardness, want to obtain good sealing and have only to
The least seal pressure, but rubber cannot be used for working at ultra-low temperature environment.
Summary of the invention
It is an object of the invention to provide a kind of check valve being applicable to high-corrosion medium, solve in low temperature, corrosivity
In environment, valve is short for service life, and for obtaining good sealing effectiveness, the problem that the seal pressure of needs is excessive.
The present invention is achieved through the following technical solutions:
A kind of check valve being applicable to high-corrosion medium, including import valve body, outlet valve body, valve seat, import valve body and outlet
Valve body connects, and is provided with a valve seat between the junction point of import valve body and outlet valve body, valve seat be positioned at outlet valve body
Valve head connects, and valve head uses PTFE material to make；Described valve head is sealing surface with the contact surface of valve seat, and sealing surface is set to blade type
Shape；Being additionally provided with a spring A at outlet valve inner, spring A is between valve head and outlet valve body, and one end of spring A is solid
It is scheduled at the runner mouth of outlet valve body；Being additionally provided with a spring B at valve head interior, spring B is between sealing surface and spring A；
It is additionally provided with one layer of low-temperature corrosion protection coating at valve head and valve base surface.
Further, traditional check valve typically uses rubber as sealed material, although rubber seal material has good
Good elasticity, relatively low hardness, determine that it wants that obtaining good sealing has only to the least seal pressure, but rubber be not
Can be used in the low-temperature working environment of-196 ° of C.A kind of unidirectional stop valve of the present invention, at import valve body and outlet valve body
Junction point between be provided with a valve seat, valve seat is connected with the valve head being positioned at outlet valve body.In order to transport low temperature height is rotten
Erosion property medium, valve head uses PTFE material as sealed material.PTFE is good low temperature resistant encapsulant, can be for a long time low
Use to the working environment of-196 ° of C.But for PTFE or PCTFE is relative to rubber, there is higher hardness.PTFE conduct
, during contacting with medium, there is the impact of the aspect such as water absorption, linear expansion coefficient, result in sealing surfaces in potted component
Out-of-flatness on microcosmic.And PTFE is as potted component, under the washing away of medium, because of the inhomogeneities of moment stress, cause
Potted component is beated, and causes sealing surface loose contact, poor sealing performance.Want to obtain so PTFE determines it as potted component
Take good sealing and need relatively large seal pressure.Good close in order to solve to need the biggest seal pressure to obtain
The problem of sealing property, is set to blade type shape by the contact surface of valve head Yu valve seat.Use blade type sealing surface, reduce sealing surface
Long-pending, so being obtained with a big seal pressure by a less applying power, good, stable sealing effect can be obtained
Really, also the unlatching force value of valve is reduced simultaneously.Between valve head and outlet valve body, a spring A is set, in system pressure
When power occurs abnormal, low temperature high-corrosion medium impact valve head, when being opened by valve head, valve head contacts with spring A, compression spring,
Spring A produces an opposition, can effectively alleviate the impulsive force of cryogenic media conveying, thus protection exit valve body,
And the sealing between protection exit valve body and import valve body, make valve be not easy to produce gap, cause low temperature highly corrosive
Dielectric leakage.Valve head and valve body are the parts that check valve is easiest to damage, and valve head interior is provided with a spring B, reduces low
The temperature high-corrosion medium impulsive force to valve head, protects valve head.One layer of low-temperature corrosion protection coating is smeared at valve head and valve base surface,
The blade type sealing surface being effectively protected on valve head and valve seat, make sealing surface and valve seat be unlikely to be corroded, thus extend
Valve head and the service life of valve seat, reach to extend the effect in the life-span of valve, saved Financial cost.
Described spring A and spring B all use butterfly spring.Butterfly spring has that stroke is short, load weight, requisite space are little,
Be applied in combination convenience, maintenance changes the outfit the advantages such as easy, economy, safety height, length in service life.
Import valve interior wall arranges hackle mark, the outer wall of outlet valve body is provided with hackle mark, import valve body with
Outlet valve body is by mating connection accordingly.By described connected mode, the connection of import valve body and outlet valve body tightr,
Sealing property is higher, and leakage problem greatly reduces.
The present invention compared with prior art, has such advantages as and beneficial effect:
1, a kind of check valve being applicable to high-corrosion medium of the present invention, valve head uses PTFE material as sealed material.PTFE
For good low temperature resistant encapsulant, can use in the working environment of as little as-196 ° of C for a long time, substituted for rubber seal material
Matter, beneficially transporting low temperature high-corrosion medium；The contact surface of valve head Yu valve seat is set to blade type shape, reduces sealing surface
Long-pending, so being obtained with a big seal pressure by a less applying power, good, stable sealing effect can be obtained
Really, also the unlatching force value of valve is reduced simultaneously；Solving in low temperature, corrosive atmosphere, valve is that acquisition is good
Sealing effectiveness, the problem that the seal pressure of needs is excessive；
2, a kind of check valve being applicable to high-corrosion medium of the present invention, smears one layer of low-temperature corrosion protection at valve head and valve base surface and is coated with
Layer, the blade type sealing surface being effectively protected on valve head and valve seat, make sealing surface and valve seat be unlikely to be corroded, thus extend
Service life of valve head and valve seat, reach to extend the effect in the life-span of valve, saved Financial cost；
3, a kind of check valve being applicable to high-corrosion medium of the present invention, arranges a spring A between valve head and outlet valve body,
Valve head interior is provided with a spring B, effectively reduces the low temperature high-corrosion medium impulsive force to valve head, protect valve head and
Valve body.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes of the application
Point, it is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention.
Labelling in accompanying drawing and the component names of correspondence:
1-import valve body, 2-exports valve body, 3-valve seat, 4-valve head, 5-sealing surface, 6-spring A, 7-spring B, 8-runner mouth.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, to this
Invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1:
A kind of check valve being applicable to high-corrosion medium as shown in Figure 1, including import valve body 1, outlet valve body 2, valve seat 3,
Import valve body 1 is connected with outlet valve body 1, it is characterised in that be provided with between the junction point of import valve body 1 and outlet valve body 2
One valve seat 3, valve seat 3 is connected with the valve head 4 being positioned at outlet valve body 2, and valve head 4 uses PTFE material to make；Described valve head 4 and valve
The contact surface of seat 3 is sealing surface 5, and sealing surface 5 is set to blade type shape；It is additionally provided with a spring A6, bullet inside outlet valve body 2
Spring A6 is between valve head 4 and outlet valve body 2, and one end of spring A6 is fixed at the runner mouth 8 of outlet valve body 2；In valve head 4
Portion is additionally provided with a spring B 7, and spring B 7 is between sealing surface 5 and spring A6；It is additionally provided with one at valve head 4 and valve seat 3 surface
Layer low-temperature corrosion protection coating.Described spring A6 and spring B 7 all use butterfly spring.Import valve body 1 inwall arranges hackle mark,
Being provided with hackle mark on the outer wall of outlet valve body 2, import valve body 1 is connected by mating accordingly with outlet valve body 2.
In order to transport low temperature high-corrosion medium, valve head 4 uses can be for a long time at the working environment of as little as-196 ° of C
The PTFE material of middle use is as sealed material.The PTFE used has higher hardness, needs the biggest seal pressure ability
Obtain good sealing property, the contact surface of valve head 4 with valve seat 3 is set to blade type shape to reduce sealing area, is sealing
Apply a less pressure on face 5 and be obtained with a big seal pressure, the most also the unlatching force value of valve is dropped
Low.A spring A6 is set between valve head 4 and outlet valve body 2, effectively alleviates the conveying of low temperature high-corrosion medium
Impulsive force, thus protect outlet valve body 2, and protect the sealing between outlet valve body 2 and import valve body 1, make valve
It is not easy to produce gap, causes dielectric leakage.Spring B 7 is set inside valve head 4, reduces low temperature high-corrosion medium to valve
The impulsive force of 4, protects valve head 4.In valve head 4 and one layer of low-temperature corrosion protection coating of valve seat 3 surface smear, it is effectively protected valve
Blade type sealing surface 5 on 4 and valve seat 3, make sealing surface 5 and valve seat 3 be unlikely to be corroded.
Above-described detailed description of the invention, has been carried out the purpose of the present invention, technical scheme and beneficial effect further
Describe in detail, be it should be understood that the detailed description of the invention that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, all should comprise
Within protection scope of the present invention.
Claims (3)
1. it is applicable to a check valve for high-corrosion medium, including import valve body (1), outlet valve body (2), valve seat (3), import
Valve body (1) is connected with outlet valve body (1), it is characterised in that set between the junction point of import valve body (1) and outlet valve body (2)
Being equipped with a valve seat (3), valve seat (3) is connected with the valve head (4) being positioned at outlet valve body (2), and valve head (4) uses PTFE material system
Make；Described valve head (4) is sealing surface (5) with the contact surface of valve seat (3), and sealing surface (5) is set to blade type shape；At outlet valve body
(2) internal be additionally provided with a spring A(6), spring A(6) be positioned at valve head (4) and export between valve body (2), spring A(6) one end
It is fixed on runner mouth (8) place of outlet valve body (2)；Being additionally provided with a spring B (7) in valve head (4) inside, spring B (7) is positioned at close
Front cover (5) and spring A(6) between；It is additionally provided with one layer of low-temperature corrosion protection coating at valve head (4) and valve seat (3) surface.
A kind of check valve being applicable to high-corrosion medium the most according to claim 1, it is characterised in that described spring A
And spring B (7) all uses butterfly spring (6).
A kind of check valve being applicable to high-corrosion medium the most according to claim 1, it is characterised in that at import valve body
(1) on inwall, hackle mark is set, the outer wall of outlet valve body (2) is provided with hackle mark, import valve body (1) and outlet valve body
(2) by mating connection accordingly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610741094.7A CN106246960A (en) | 2016-08-29 | 2016-08-29 | A kind of check valve being applicable to high-corrosion medium |
| PCT/CN2017/090705 WO2018040704A1 (en) | 2016-08-29 | 2017-06-29 | One-way valve adapted to highly corrosive environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610741094.7A CN106246960A (en) | 2016-08-29 | 2016-08-29 | A kind of check valve being applicable to high-corrosion medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106246960A true CN106246960A (en) | 2016-12-21 |
Family
ID=57597472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610741094.7A Pending CN106246960A (en) | 2016-08-29 | 2016-08-29 | A kind of check valve being applicable to high-corrosion medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106246960A (en) |
| WO (1) | WO2018040704A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223858A (en) * | 2017-08-08 | 2018-06-29 | 河南航天液压气动技术有限公司 | Valve sealing structure, valve and the low pressure valve using the sealing structure |
| CN108571603A (en) * | 2017-07-12 | 2018-09-25 | 杭州南方赛珀工业设备有限公司 | It is a kind of to fix hinged check valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658621B (en) * | 2020-12-31 | 2022-05-31 | 苏州市环宇汽车配件有限公司 | One-way valve for flue pipe of gas water heater and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963272A (en) * | 2006-11-22 | 2007-05-16 | 广州聚能生物科技有限公司 | Plane type one-way valve |
| CN202972034U (en) * | 2012-11-08 | 2013-06-05 | 浙江鸿森机械有限公司 | Check valve |
| CN103527794A (en) * | 2012-07-04 | 2014-01-22 | 石立军 | Anti-inner-leakage device for stainless steel stop valve |
| CN103732962A (en) * | 2011-06-10 | 2014-04-16 | 株式会社富士金 | Check valve |
| CN104595536A (en) * | 2015-01-19 | 2015-05-06 | 沪东重机有限公司 | One-way check device for marine diesel engine air pipe |
| JP2016125643A (en) * | 2015-01-08 | 2016-07-11 | イーグル工業株式会社 | Check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848605A (en) * | 1997-11-12 | 1998-12-15 | Cybor Corporation | Check valve |
| JP3826231B2 (en) * | 1999-11-12 | 2006-09-27 | 和夫 茂呂 | Small ball valve device |
| CN104455570A (en) * | 2014-11-27 | 2015-03-25 | 浙江新昌三瑞香雪冲业有限公司 | Anti-corrosion one-way valve |
| CN204592431U (en) * | 2015-01-26 | 2015-08-26 | 周小琴 | A kind of corrosion-resistant hydrovalve |
-
2016
- 2016-08-29 CN CN201610741094.7A patent/CN106246960A/en active Pending
-
2017
- 2017-06-29 WO PCT/CN2017/090705 patent/WO2018040704A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963272A (en) * | 2006-11-22 | 2007-05-16 | 广州聚能生物科技有限公司 | Plane type one-way valve |
| CN103732962A (en) * | 2011-06-10 | 2014-04-16 | 株式会社富士金 | Check valve |
| CN103527794A (en) * | 2012-07-04 | 2014-01-22 | 石立军 | Anti-inner-leakage device for stainless steel stop valve |
| CN202972034U (en) * | 2012-11-08 | 2013-06-05 | 浙江鸿森机械有限公司 | Check valve |
| JP2016125643A (en) * | 2015-01-08 | 2016-07-11 | イーグル工業株式会社 | Check valve |
| CN104595536A (en) * | 2015-01-19 | 2015-05-06 | 沪东重机有限公司 | One-way check device for marine diesel engine air pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571603A (en) * | 2017-07-12 | 2018-09-25 | 杭州南方赛珀工业设备有限公司 | It is a kind of to fix hinged check valve |
| CN108571603B (en) * | 2017-07-12 | 2024-01-09 | 杭州南方赛珀工业设备有限公司 | Fixed articulated check valve |
| CN108223858A (en) * | 2017-08-08 | 2018-06-29 | 河南航天液压气动技术有限公司 | Valve sealing structure, valve and the low pressure valve using the sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018040704A1 (en) | 2018-03-08 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161221 |
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| RJ01 | Rejection of invention patent application after publication |