CN207741899U - A kind of vacuum leak detector - Google Patents
A kind of vacuum leak detector Download PDFInfo
- Publication number
- CN207741899U CN207741899U CN201820063279.1U CN201820063279U CN207741899U CN 207741899 U CN207741899 U CN 207741899U CN 201820063279 U CN201820063279 U CN 201820063279U CN 207741899 U CN207741899 U CN 207741899U
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- China
- Prior art keywords
- vacuum
- babinet
- upper cover
- vacuum chamber
- leak detector
- 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.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 19
- 238000004806 packaging method and process Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 230000029052 metamorphosis Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000009461 vacuum packaging Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a kind of vacuum leak detector, including babinet and upper cover, and babinet includes vacuum chamber, and when upper cover is closed with babinet, vacuum chamber forms the cavity of sealing with upper cover, and test container is arranged in vacuum chamber, and transparent organic glass is arranged in upper cover.When detecting vacuum packaging, packaging to be detected is put in test container, microswitch is triggered while closing upper cover, vacuum pump work vacuumizes vacuum chamber, when vacuum degree in vacuum chamber reaches the setting value of pressure vacuum gauge, vacuum pump stopping vacuumizes, time relay timing, the vacuum-packed metamorphosis of detection can be directly observed by the organic glass of upper cover, when time relay timing time reaches setting value, vacuum deflation valve deflation pressure release, upper cover is opened under the control for flicking hinge certainly, complete test, test process is simple to operation, high degree of automation, substantially increase detection efficiency；Detectable substance will not be treated simultaneously to pollute, improve accuracy of detection.
Description
Technical field
The utility model is related to vacuum leak hunting technical fields, more particularly to a kind of vacuum leak detector.
Background technology
The packaging that technology has almost applied to all commodity is packed, is play in the packaging of commodity highly important
Role, pack can ensure article it is effectively moisture-proof and and air exclusion, avoid commodity from being contaminated, damage.Vacuum is examined
Leakage be exactly with method appropriate judge vacuum system, container or device whether gas leakage, determine leakage hole position and leak rate size, accordingly
Instrument be known as leak detector.Their vacuum is determined by vacuum leak hunting technology in vacuum system, container, device manufacturing processes
Air-tightness, the position for detecting leakage hole, to take measures to close leakage hole to make the vacuum state in system, container, device
It is maintained.
The quality of drug directly affects national health, packs the important component as product, after drug manufacture
It plays an important role in terms of quality protection.Pharmaceutical packing must be spot-check before manufacture with vacuum leak detector, many at present
Pharmacy and food enterprise are all manual vacuum leakage detecting instruments, are exactly to be put into container, open vacuum manually detected material
Pump observes vacuum meter, after reaching detection pressure, turns off vacuum pump, starts timing, and after reaching the time, manually opened valve takes out
It is detected material.This operation is very troublesome, and testing staff needs to stand always at vacuum detection instrument edge, is unfavorable for continuously examining
It surveys, operating personnel's work load is heavier.The encapsulation of bubble plate is the inner packing of a kind of common drug or food, the type in bubble plate
Chamber is small, and occupies very big volume by drug, and granule packaging is mostly the bag type package of three bandings, four bandings, detection essence
Degree is not high and detects intricate operation.
Therefore, how to provide that a kind of accuracy of detection is high, leakage detecting instrument easy to operate, be that those skilled in the art urgently solve
Certainly.
Utility model content
The purpose of this utility model is to provide a kind of vacuum leak detector, to solve the above-mentioned problems of the prior art, letter
Change vacuum leak hunting working procedure, improves accuracy of detection.
To achieve the above object, the utility model provides following scheme：The utility model provides a kind of vacuum leak detector,
Including babinet, upper cover and vacuum pump, the babinet is connected with the upper cover by flicking hinge certainly, and the babinet includes vacuum
Chamber, when the upper cover is closed with the babinet, the vacuum chamber forms the cavity of sealing with the upper cover, is set in the vacuum chamber
Test container is set, transparent organic glass is arranged in the upper cover, and the organic glass and the test container are relative to the case
Body and the closing face of the upper cover are symmetrical arranged, and sealing strip is arranged on the side of the babinet in the upper cover, described close
The size of strip of paper used for sealing and the sectional dimension of the vacuum chamber match；
The vacuum pump is connected by pipeline with the vacuum chamber, and the pipeline of the vacuum pump and the vacuum chamber is connected
On also set up vacuum solenoid, the vacuum pump is set in the babinet, and microswitch, the fine motion are arranged on the babinet
Switch is set to the babinet on the closing face of the upper cover, and the microswitch is connected with the vacuum pump, the babinet
On also set up contact pressure vacuum gauge and the time relay, the contact pressure vacuum gauge is connected with the vacuum pump, described true
The air inlet of sky pump is also associated with vacuum deflation valve, and the vacuum deflation valve is connected with the time relay.
Preferably, there is the organic glass protrusion, the protrusion to be directed away from the side of the babinet.
Preferably, described from the quantity of hinge is flicked is two, the microswitch be disposed in proximity to two described in from bullet
It opens on the babinet of hinge side.
Preferably, vacuum leak detector further includes emergency stop switch, and the emergency stop switch is set on the babinet, the emergency stop
Switch is connected with the vacuum pump.
Preferably, vacuum leak detector further includes four universal rolling wheels, and four universal rolling wheels are set to the babinet bottom
Brake structure is arranged in the quadrangle in portion, the universal rolling wheel.
Preferably, strip is set on the test container, the slot to match with the strip is set in the vacuum chamber,
The test container and the vacuum chamber plug connection.
Preferably, the test container is rectangular parallelepiped structure, and the opposite both sides of the test container are respectively provided with the card
Item, the interior multiple slots of setting of the vacuum chamber.
Preferably, hasp is also set up on the upper lid, and the convex block to match with the hasp is set on the babinet, it is described
Hasp and the convex block, which match, can lock the upper cover and the babinet, and the hasp and the convex block flick certainly with described
Hinge is oppositely arranged.
Preferably, vacuum leak detector further includes handle, and the handle is set on the babinet.
Preferably, the sealing strip is made of silica gel material.
The utility model achieves following technique effect compared with the existing technology：The vacuum leak detector of the utility model, packet
Babinet and upper cover are included, babinet is connected with upper cover by flicking hinge certainly, and babinet includes vacuum chamber, when upper cover is closed with babinet, very
Cavity forms the cavity of sealing with upper cover, and test container is arranged in vacuum chamber, and transparent organic glass, upper cover setting is arranged in upper cover
Sealing strip, testing, the cavity sealing that the when of being vacuum-packed ensures that vacuum chamber and upper cover are formed is air tight；Vacuum pump by pipeline with
Vacuum chamber is connected, and connects and also sets up vacuum solenoid on the pipeline of vacuum pump and vacuum chamber, microswitch is arranged on babinet, micro-
Dynamic switch is connected with vacuum pump, also sets up contact pressure vacuum gauge and the time relay on babinet, contact pressure vacuum gauge and very
Sky pump is connected, and the air inlet of vacuum pump is also associated with vacuum deflation valve, and vacuum deflation valve is connected with the time relay.It is true in detection
When empty package, packaging to be detected is put in test container, microswitch is triggered while closing upper cover, vacuum pump work will be true
Cavity vacuumizes, and when the vacuum degree in vacuum chamber reaches the setting value of pressure vacuum gauge, vacuum pump stopping vacuumizes, time relay
Device timing can directly observe the vacuum-packed metamorphosis of detection by the organic glass of upper cover, when time relay timing
Between when reaching setting value, vacuum deflation valve deflation pressure release, upper cover is opened under the control for flicking hinge certainly, completes test, test
Process is simple to operation, and high degree of automation substantially increases detection efficiency；Detectable substance will not be treated simultaneously to pollute, carried
High measurement accuracy.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall structure diagram of the vacuum leak detector of the utility model；
Wherein, 1 is babinet, and 2 be upper cover, and 3 be vacuum pump, and 4 is from flicking hinge, and 5 be vacuum chamber, and 6 be test container, 7
It is vacuum solenoid for sealing strip, 8,9 be microswitch, and 10 be pressure vacuum gauge, and 11 be the time relay, and 12 be vacuum deflation
Valve, 13 be emergency stop switch, and 14 be universal rolling wheel.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of vacuum leak detector, to solve the above-mentioned problems of the prior art, letter
Change vacuum leak hunting working procedure, improves accuracy of detection.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
It please refers to Fig.1, wherein Fig. 1 is the overall structure diagram of the vacuum leak detector of the utility model.
The utility model provides a kind of vacuum leak detector, including babinet 1, upper cover 2 and vacuum pump 3, and babinet 1 and upper cover 2 are logical
It crosses and is connected from flicking hinge 4, babinet 1 includes vacuum chamber 5, and when upper cover 2 and babinet 1 are closed, vacuum chamber 5 is formed with upper cover 2 and sealed
Cavity, test container 6 is set in vacuum chamber 5, and transparent organic glass is arranged in upper cover 2, and organic glass and test container 6 are opposite
It is symmetrical arranged in babinet 1 and the closing face of upper cover 2, sealing strip 7 is set on the side of babinet 1 in upper cover 2, sealing strip 7
Size and the sectional dimension of vacuum chamber 5 match.
Vacuum pump 3 is connected by pipeline with vacuum chamber 5, is connected and is also set up vacuum on the pipeline of vacuum pump 3 and vacuum chamber 5
Solenoid valve 8, vacuum pump 3 are set in babinet 1, and microswitch 9 is arranged on babinet 1, and microswitch 9 is set to babinet 1 and upper cover 1
Closing face on, microswitch 9 is connected with vacuum pump 3, and contact pressure vacuum gauge 10 and the time relay are also set up on babinet 1
11, contact pressure vacuum gauge 10 is connected with vacuum pump 3, and the air inlet of vacuum pump 3 is also associated with vacuum deflation valve 12, vacuum deflation
Valve 12 is connected with the time relay 11.
When whether detection bubble plate has leakage, coloured water will be put into test container 6, bubble plate sample is positioned over
In test container 6, upper cover 2 is closed, upper cover 2 depresses microswitch 9, and vacuum pump 3 starts, and is vacuumized to vacuum chamber 5, works as vacuum
When vacuum degree in chamber 5 reaches the setting value of pressure vacuum gauge 10, vacuum pump 3 is out of service, and the time relay 11 starts timing
(generally 40 seconds), when 11 timing time of the time relay reaches setting value, vacuum deflation valve 12 opens deflation pressure release, pressure release
After the completion, upper cover 1 is opened under the control for flicking hinge 4 certainly, and detected bubble plate is taken out, has seen whether that liquid enters
In bubble-cap, if there is liquid enters in bubble-cap, illustrates to seal bad, there are quality problems, otherwise illustrate that detection is qualified.
When detecting granule packaging bag with the presence or absence of leakage, granule packaging bag sample is positioned in test container, is closed
Upper cover 2, upper cover 2 depress microswitch 9, and vacuum pump 3 starts automatically, to being vacuumized in vacuum chamber 5, when true in vacuum chamber 5
When reciprocal of duty cycle reaches the setting value of pressure vacuum gauge 10, vacuum pump 3 stops, and the time relay 11 starts timing (generally 40 seconds),
The profile variation situation of granule packaging bag can be observed by transparent organic glass in upper cover 2, and then whether infer packaging bag
There are leakage scenarios.For there is the granule packaging bag of leakage to will not change due to the pressure balance inside and outside bubble；For not having
The granule packaging bag of leakage, since the pressure in granule packaging bag is higher than the pressure outside granule packaging bag bag, granule packaging bag will
It can expand.When 11 timing time of the time relay reaches setting value, vacuum deflation valve 12 automatically turns on deflation pressure release, and pressure release is complete
Cheng Hou, upper cover 1 are opened by the control of hinge 4 is flicked certainly, at this time take out detected granule packaging bag, and detection is completed.
Specifically, there is organic glass protrusion, protrusion to be directed away from the side of babinet 1, and the organic glass in upper cover 2 has
Protrusion increases the volume that vacuum chamber 5 forms seal cavity with upper cover 2.
In addition, the quantity for flicking hinge 4 certainly is two, microswitch 9 is disposed in proximity to two and flicks 4 side of hinge certainly
On babinet 2, microswitch 9 is triggered in time during closing upper cover 2, save the testing time, improve testing efficiency.
More specifically, vacuum leak detector further includes emergency stop switch 13, emergency stop switch 13 is set on babinet 1, emergency stop switch
13 are connected with vacuum pump 3, and when emergency occurs, a key emergency stop provides safety guarantee for operating personnel.
Further, vacuum leak detector further includes four universal rolling wheels 14, movement, transhipment convenient for vacuum leak detector, and four
A universal rolling wheel 14 is set to the quadrangle of 1 bottom of babinet, and universal rolling wheel 14 is arranged brake structure, improves the safety of vacuum leak detector
Performance.
Wherein, strip is set on test container 6, the slot that setting matches with strip in vacuum chamber 5, test container 6 with
5 plug connection of vacuum chamber, test container 6 are detachably connected with babinet 1, convenient for cleaning, mobile test container 6, plug connection, knot
Structure is simple, simple operation.
In this embodiment, test container 6 is rectangular parallelepiped structure, and the opposite both sides of test container 6 are respectively provided with
Strip, the interior multiple slots of setting of vacuum chamber 5, can adjust test container 6 and vacuum chamber 5 according to the concrete shape of tested packaging
Between relative position, person easy to operation easily observes the state of tested packaging through organic glass.
Further, hasp is also set up in upper cover 2, and the convex block to match with hasp, hasp and convex block are set on babinet 1
Upper cover 2 and babinet 1 can be locked by matching, and hasp and convex block flick hinge 4 with oneself and be oppositely arranged.To prevent in detection process
In, accident occurs for equipment, and upper cover 2 is flicked, damaged to operating personnel suddenly, and setting can lock taking for upper cover 2 and babinet
Button, convex block provide more one for safety operation and ensure again.
Vacuum leak detector further includes handle, and handle is set on babinet 1, and person easy to operation is mobile, transports vacuum leak detector.
Sealing strip 7 is made of silica gel material, and sealing strip 7 is made preferably to bear vacuum pressure, ensures vacuum chamber 5 and upper cover 2
Between seal it is tight.
Packaging to be detected is put in test container 6 by the vacuum leak detector of the utility model when detecting vacuum packaging,
Microswitch 9 is triggered while closing upper cover 2, the work of vacuum pump 3 vacuumizes vacuum chamber 5, and the setting of sealing strip 7 ensures vacuum
The tightness for the cavity that chamber 5 and upper cover 2 are formed, when the vacuum degree in vacuum chamber 5 reaches the setting value of pressure vacuum gauge 10, vacuum
Pump 3 stops vacuumizing, 11 timing of the time relay, and it is vacuum-packed directly to observe detection by the organic glass of upper cover 2
Metamorphosis, when 11 timing time of the time relay reaches setting value, 12 deflation pressure release of vacuum deflation valve, upper cover 2 is flicking certainly
It is opened under the control of hinge 4, completes test, test process is simple to operation, high degree of automation, substantially increases detection effect
Rate；Detectable substance will not be treated simultaneously to pollute, improve accuracy of detection.
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, according to the utility model thought, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of vacuum leak detector, it is characterised in that：Including babinet, upper cover and vacuum pump, the babinet and the upper cover pass through
Be connected from hinge is flicked, the babinet includes vacuum chamber, when the upper cover and the babinet are closed, the vacuum chamber with it is described on
Lid forms the cavity of sealing, test container is arranged in the vacuum chamber, transparent organic glass is arranged in the upper cover, described organic
Glass and the test container are symmetrical arranged relative to the babinet and the closing face of the upper cover, in the upper cover close to described
Sealing strip is set on the side of babinet, and the size of the sealing strip and the sectional dimension of the vacuum chamber match；
The vacuum pump is connected by pipeline with the vacuum chamber, is connected on the pipeline of the vacuum pump and the vacuum chamber also
Vacuum solenoid is set, and the vacuum pump is set in the babinet, and microswitch, the microswitch are arranged on the babinet
The babinet is set to on the closing face of the upper cover, the microswitch is connected with the vacuum pump, on the babinet also
Setting contact pressure vacuum gauge and the time relay, the contact pressure vacuum gauge are connected with the vacuum pump, the vacuum pump
Air inlet be also associated with vacuum deflation valve, the vacuum deflation valve is connected with the time relay.
2. vacuum leak detector according to claim 1, it is characterised in that：The organic glass has protrusion, the protrusion
It is directed away from the side of the babinet.
3. vacuum leak detector according to claim 1, it is characterised in that：Certainly the quantity for flicking hinge is two, institute
Microswitch is stated to be disposed in proximity to described in two from the babinet for flicking hinge side.
4. vacuum leak detector according to claim 1, it is characterised in that：Further include emergency stop switch, the emergency stop switch is set
It is placed on the babinet, the emergency stop switch is connected with the vacuum pump.
5. vacuum leak detector according to claim 1, it is characterised in that：Further include four universal rolling wheels, four described ten thousand
Way roller is set to the quadrangle of the bottom of box, and brake structure is arranged in the universal rolling wheel.
6. vacuum leak detector according to claim 1, it is characterised in that：Strip is set on the test container, it is described true
The slot that setting matches with the strip in cavity, the test container and the vacuum chamber plug connection.
7. vacuum leak detector according to claim 6, it is characterised in that：The test container is rectangular parallelepiped structure, described
The opposite both sides of test container are respectively provided with the strip, and multiple slots are arranged in the vacuum chamber.
8. vacuum leak detector according to claim 1, it is characterised in that：Hasp, the babinet are also set up on the upper lid
The convex block that upper setting matches with the hasp, the hasp and the convex block, which match, can lock the upper cover and the case
Body, the hasp and the convex block are oppositely arranged with described from flicking hinge.
9. according to claim 1-8 any one of them vacuum leak detectors, it is characterised in that：Further include handle, the handle is set
It is placed on the babinet.
10. according to claim 1-8 any one of them vacuum leak detectors, it is characterised in that：The sealing strip is by silica gel material
It is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063279.1U CN207741899U (en) | 2018-01-15 | 2018-01-15 | A kind of vacuum leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820063279.1U CN207741899U (en) | 2018-01-15 | 2018-01-15 | A kind of vacuum leak detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207741899U true CN207741899U (en) | 2018-08-17 |
Family
ID=63123190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820063279.1U Expired - Fee Related CN207741899U (en) | 2018-01-15 | 2018-01-15 | A kind of vacuum leak detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207741899U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072492A (en) * | 2018-01-15 | 2018-05-25 | 辽宁工业大学 | A kind of vacuum leak detector |
| CN109738127A (en) * | 2018-12-28 | 2019-05-10 | 中核四0四有限公司 | A kind of α waste packaging container vacuum leakage detection apparatus and method |
| CN111189597A (en) * | 2020-01-10 | 2020-05-22 | 天津泰士康医疗科技有限公司 | Hemodialysis dry powder bucket leak detector |
| CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
| CN114724889A (en) * | 2022-03-28 | 2022-07-08 | 广东电网有限责任公司 | Detection system and method for vacuum relay |
-
2018
- 2018-01-15 CN CN201820063279.1U patent/CN207741899U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072492A (en) * | 2018-01-15 | 2018-05-25 | 辽宁工业大学 | A kind of vacuum leak detector |
| CN109738127A (en) * | 2018-12-28 | 2019-05-10 | 中核四0四有限公司 | A kind of α waste packaging container vacuum leakage detection apparatus and method |
| CN111189597A (en) * | 2020-01-10 | 2020-05-22 | 天津泰士康医疗科技有限公司 | Hemodialysis dry powder bucket leak detector |
| CN113758638A (en) * | 2021-10-12 | 2021-12-07 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
| CN113758638B (en) * | 2021-10-12 | 2022-07-29 | 云南星桥食品有限公司 | Quick detection device and detection method for rice noodle food |
| CN114724889A (en) * | 2022-03-28 | 2022-07-08 | 广东电网有限责任公司 | Detection system and method for vacuum relay |
| CN114724889B (en) * | 2022-03-28 | 2023-06-16 | 广东电网有限责任公司 | Detection system and method for vacuum relay |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |