CN107676636A - A kind of pipeline leakage testing sensor fastening device and fixing means - Google Patents
A kind of pipeline leakage testing sensor fastening device and fixing means Download PDFInfo
- Publication number
- CN107676636A CN107676636A CN201711100138.9A CN201711100138A CN107676636A CN 107676636 A CN107676636 A CN 107676636A CN 201711100138 A CN201711100138 A CN 201711100138A CN 107676636 A CN107676636 A CN 107676636A
- Authority
- CN
- China
- Prior art keywords
- sensor
- pipeline
- fastening device
- base
- installation seat
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a kind of pipeline leakage testing sensor fastening device and fixing means, wherein fixing device includes：Base, sensor installation seat and bandage, the base are domes, and the middle part of its top surface has mounting hole, and the sensor installation seat, which runs through, to be connected in the mounting hole；The bottom install sensor of the sensor installation seat, the base are connected on pipeline by the bandage.The sensor installation seat for being provided with sensor is connected on base by apparatus of the present invention, and base is close-coupled to the measured position on pipeline by bandage, realizes being brought into close contact for sensor and tested pipeline, and connective stability is good, convenient disassembly.
Description
Technical field
The present invention relates to Discussion on Pipe Leakage Detection Technology field, is fixed more particularly to a kind of pipeline leakage testing with sensor
Device and fixing means.
Background technology
Pipeline transportation is a kind of emerging, economic means of transportation, especially in bulks such as conveying gas, liquid and slurries
There is inherent advantage in terms of product, more and more important effect, the safe operation of pipeline are played in national economy
Problem has received significant attention.Domestic and foreign experience shows, due to the spontaneous corrosion of pipeline, aging, natural calamity and artificial destruction
Etc. reason, pipe leakage turns into the accident that most frequently occurs in pipeline industry, this not only result in the substantial amounts of wasting of resources and
Serious environmental pollution, but also great casualties and property loss may be brought.Therefore, pipe leakage is found in time
And leakage point position is accurately determined, for reducing loss, keeping pipeline normal operation significant.
According to the difference of measured medium, pipeline leakage detection method can be divided into direct Detection Method and indirect detection method, directly
Detection method is the method for the liquid or gas of direct detection leakage, indirect detection rule be detection because leakage and caused by flow,
The detection method of the change of the physical parameter such as pressure or sound.The pipeline leakage detection method of early stage has radiation method, quality to put down
Weighing apparatus method, microwave sounding method, magnetic induction probe method and infrared detecting method etc., current widely used method include suction wave
Method, optical fiber leak detecting and sound emission detection method.Wherein, sound emission as a kind of online non-destructive testing technology in pipeline leakage testing
It is widely applied etc. all conglomeraties.Compared with traditional non-destructive testing technology, the letter detected by acoustic emission testing technology
Number from material in itself, can reflect fault in material origin feature and defect with the development and change rule of time, be more suitable for
Dynamic monitoring, adapt to wide, leak source registration height.
The effect of acoustic emission sensor is that acoustic emission wave is converted to electric signal, is the important composition of acoustic emission detection system
Part, the compactedness connected between sensor and measurand detect direct decision the accuracy of data.In actual use,
Sensor needs to be attached at pipe surface by specific fixing device, and to reduce acoustical signal declining at interface as far as possible
Subtract.At present, conventional sensor fastening device has elastic band, adhesive tape and magnetic deck etc., the fastening performance of elastic band and adhesive tape
Be difficult to ensure that, and magnetic deck it is although easy for installation and coupling also than more uniform, but there is also it is certain the shortcomings that, first, for one
A little pipeline materials can not use, if second, magnetic force is big when magnet plane and the big contact area of tube wall, dismounting is inconvenient.
The content of the invention
Therefore, it is an object of the present invention to propose that a kind of sensor compactness is high, connective stability is good, and dismounting side
Just pipeline leakage testing sensor fastening device and fixing means.
The invention provides a kind of pipeline leakage testing sensor fastening device, including：Base, sensor installation seat and
Bandage, the base are domes, and the middle part of its top surface has mounting hole, and the sensor installation seat, which runs through, is connected to the peace
Fill in hole；The bottom install sensor of the sensor installation seat, the base are connected on pipeline by the bandage.
The sensor installation seat for being provided with sensor is connected on base by apparatus of the present invention, and by bandage that base is tight
The close measured position being connected on pipeline, being brought into close contact for sensor and tested pipeline is realized, and connective stability is good, dismounting side
Just.
Further, it is to be welded and fixed between the base and sensor installation seat.
Further, the base and sensor installation seat are stainless steel material.
Further, the top surface of the sensor installation seat and side are provided with the first rectangular channel of insertion, the base
The corresponding position of top surface is also provided with the second rectangular channel of same widths, for placing the binding post of sensor, the output of installation side
Or the sensor of top output.
Further, three are connected with the lower side same level of the sensor installation seat and are mutually 120 degree of angles
Sensor bolt, the end of the bolt is connected with the curved cushion block of inner face.
Further, the sensor is connected to the downside of the sensor installation seat, the sensor and the sensing
Balancing spring is connected between device mounting seat.
Further, the middle part of the sensor installation seat has through hole, and the lower removable of the through hole connects the biography
Sensor, the balancing spring is assembled in the through hole on the upside of the sensor.
Further, the circle that the both ends of the balancing spring are welded with the size of central aperture and the through hole matches
Stainless steel substrates.
Further, the both sides of the upper surface of the base are respectively provided with a fitting recess, the fitting recess and the bandage
It is engaged, and the base is connected on pipeline by bandage fastener.
Present invention also offers a kind of pipeline leakage testing sensor fixing means, including：
Step 1, according to the diameter of the size of sensor, binding post position and tested pipeline determine balancing spring length and
Elastic force, choose balancing spring；The length of bandage is determined according to the diameter of pipeline, chooses bandage；
Step 2, balancing spring is arranged between sensor and sensor installation seat；
Step 3, three sensor bolts are adjusted, sensor is navigated to the position coaxial with sensor installation seat；
Step 4, according to pipeline leakage testing arrangement and method for construction, determine the installation site of sensor and positioned, it is then right
Sensor mount position carries out polishing cleaning；
Step 5, the sensor fastening device for being provided with sensor is positioned over above tested pipeline, and to sensor angles
It is finely adjusted, makes itself and tested pipeline intimate surface contact, it is then using bandage that sensor fastening device is tight with tested pipeline
Close fixation；
Step 6, sensor conductor is connected, opens pipeline leakage checking system, obtains testing result.
The sensor installation seat for being provided with sensor is connected on base by the inventive method, and by bandage that base is tight
The close measured position being connected on pipeline, being brought into close contact for sensor and tested pipeline is realized, and connective stability is good, dismounting side
Just.
Meanwhile the present invention is applied to the pipeline of different-diameter and the sensor of sizes, sensor both can be defeated with side
Go out can also top output, it is practical, it is simple in construction, can preferably protect the sensor against damage, make sensor with manage
Road surface fully couples, and effectively improves the reliability of data acquisition.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is a kind of structural representation of pipeline leakage testing sensor fastening device of the embodiment of the present invention；
Fig. 2 is a kind of mounting structure of the pipeline leakage testing sensor fastening device of the embodiment of the present invention on pipeline
Schematic diagram.
In accompanying drawing mark for：
1 base
2 fitting recess
3 sensor installation seats
4 first rectangular channels
5 second rectangular channels
6 sensors
7 top output transducer leads
8 balancing springs
9 stainless steel substrates
10 bolts
11 pipelines
12 bandages
13 bandage fasteners
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The invention provides a kind of pipeline leakage testing sensor fastening device, as depicted in figs. 1 and 2, including：Base
1, sensor installation seat 3 and bandage 12, the base 1 are domes, and the middle part of its top surface has mounting hole, the sensor
Mounting seat 3, which runs through, to be connected in the mounting hole；The bottom install sensor 6 of the sensor installation seat 3, the base 1 pass through
The bandage 12 is connected on pipeline 11.Preferably, to be welded and fixed between the base 1 and sensor installation seat 3, the bottom
Seat 1 and sensor installation seat 3 are stainless steel material.The sensor installation seat for being provided with sensor is connected to by apparatus of the present invention
On base, and base is close-coupled to by bandage the measured position on pipeline, realizes the close of sensor and tested pipeline
Fitting, and connective stability is good, convenient disassembly.
In the one side of the embodiment of the present invention, the top surface of the sensor installation seat 3 and side are provided with the first of insertion
Rectangular channel 4, the corresponding position of the top surface of the base 1 is also provided with the second rectangular channel 5 of same widths, for placing sensor 6
Binding post, installation side output or top output sensor 6.Preferably, the sensor 6 is acoustic emission sensor.
Connected in the one side of the embodiment of the present invention, the lower side same level of the sensor installation seat 3
There are three sensor bolts 10 for being mutually 120 degree of angles, it is curved that the end of the bolt 10 is connected with inner face
Cushion block.The cushion block of arc matches with sensor, for carrying out radial positioning to sensor, and effectively protects sensor.
In the one side of the embodiment of the present invention, the sensor 6 is connected to the downside of the sensor installation seat 3, institute
State and balancing spring 8 is connected between sensor 6 and the sensor installation seat 3.Alternatively, in the sensor installation seat 3
Portion has a through hole, and the lower removable of the through hole connects the sensor 6, in the through hole of the upside of sensor 6 described in assembling
Balancing spring 8.Preferably, the circle that the both ends of the balancing spring 8 are welded with the size of central aperture and the through hole matches
Shape stainless steel substrates.The setting of balancing spring can flexibly adjust the installation site of sensor, and the both ends of balancing spring are welded with
Central aperture and circular stainless steel substrates parallel to each other, to ensure force acting on transducer uniformly and from damage.The stainless steel substrates
Central aperture passed through by top output transducer lead 7.
In the one side of the embodiment of the present invention, the both sides of the upper surface of the base 1 are respectively provided with a fitting recess 2, institute
State fitting recess 2 to be engaged with the bandage 12, and the base 1 is connected on pipeline 11 by bandage fastener 13.Make
Sensor is stably connected in pipe under test with the connection of bandage, be applicable to various sizes of pipeline, ensure inspection
Survey the accuracy of result.
The embodiment of the present invention additionally provides a kind of pipeline leakage testing sensor fixing means, including：
Step 1, according to the diameter of the size of sensor, binding post position and tested pipeline determine balancing spring length and
Elastic force, choose balancing spring；The length of bandage is determined according to the diameter of pipeline, chooses bandage；
Step 2, balancing spring is arranged between sensor and sensor installation seat；
Step 3, three sensor bolts are adjusted, sensor is navigated to the position coaxial with sensor installation seat；
Step 4, according to pipeline leakage testing arrangement and method for construction, determine the installation site of sensor and positioned, it is then right
Sensor mount position carries out polishing cleaning；
Step 5, the sensor fastening device for being provided with sensor is positioned over above tested pipeline, and to sensor angles
It is finely adjusted, makes itself and tested pipeline intimate surface contact, it is then using bandage that sensor fastening device is tight with tested pipeline
Close fixation；
Step 6, sensor conductor is connected, opens pipeline leakage checking system, obtains testing result.
The sensor installation seat for being provided with sensor is connected on base by the inventive method, and by bandage that base is tight
The close measured position being connected on pipeline, being brought into close contact for sensor and tested pipeline is realized, and connective stability is good, dismounting side
Just.
Meanwhile the present invention is applied to the pipeline of different-diameter and the sensor of sizes, sensor both can be defeated with side
Go out can also top output, it is practical, it is simple in construction, can preferably protect the sensor against damage, make sensor with manage
Road surface fully couples, and effectively improves the reliability of data acquisition.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
- A kind of 1. pipeline leakage testing sensor fastening device, it is characterised in that including：Base (1), sensor installation seat (3) and bandage (12), the base (1) is domes, and the middle part of its top surface has Mounting hole, the sensor installation seat (3), which is run through, to be connected in the mounting hole；The bottom install sensor (6) of the sensor installation seat (3), the base (1) are connected to by the bandage (12) On pipeline (11).
- A kind of 2. pipeline leakage testing sensor fastening device as claimed in claim 1, it is characterised in that the base (1) it is to be welded and fixed between sensor installation seat (3).
- A kind of 3. pipeline leakage testing sensor fastening device as claimed in claim 1, it is characterised in that the base (1) and sensor installation seat (3) is stainless steel material.
- A kind of 4. pipeline leakage testing sensor fastening device as claimed in claim 1, it is characterised in that the sensor The top surface of mounting seat (3) and side are provided with the first rectangular channel (4) of insertion, and the corresponding position of the top surface of the base (1) is also opened There is the second rectangular channel (5) of same widths, for placing the binding post of sensor (6), what the output of installation side or top exported Sensor (6).
- A kind of 5. pipeline leakage testing sensor fastening device as claimed in claim 1, it is characterised in that the sensor Three sensor bolts (10) for being mutually 120 degree of angles are connected with the lower side same level of mounting seat (3), it is described The end of bolt (10) is connected with the curved cushion block of inner face.
- A kind of 6. pipeline leakage testing sensor fastening device as claimed in claim 1, it is characterised in that the sensor (6) downside of the sensor installation seat (3) is connected to, is connected between the sensor (6) and the sensor installation seat (3) There is balancing spring (8).
- A kind of 7. pipeline leakage testing sensor fastening device as claimed in claim 6, it is characterised in that the sensor The middle part of mounting seat (3) has through hole, and the lower removable of the through hole connects the sensor (6), sensor (6) upside Through hole in assemble the balancing spring (8).
- A kind of 8. pipeline leakage testing sensor fastening device as claimed in claim 7, it is characterised in that the equilibrium bomb The circular stainless steel substrates that the both ends of spring (8) are welded with the size of central aperture and the through hole matches.
- A kind of 9. pipeline leakage testing sensor fastening device as any one of claim 1-8, it is characterised in that The both sides of the upper surface of the base (1) are respectively provided with a fitting recess (2), and the fitting recess (2) matches with the bandage (12) Close, and the base (1) is connected on pipeline (11) by bandage fastener (13).
- A kind of 10. pipeline leakage testing sensor fixing means, it is characterised in that including：Step 1, the length and bullet of balancing spring are determined according to the diameter of the size of sensor, binding post position and tested pipeline Power, choose balancing spring；The length of bandage is determined according to the diameter of pipeline, chooses bandage；Step 2, balancing spring is arranged between sensor and sensor installation seat；Step 3, three sensor bolts are adjusted, sensor is navigated to the position coaxial with sensor installation seat；Step 4, according to pipeline leakage testing arrangement and method for construction, determine the installation site of sensor and positioned, then to sensing Device installation position carries out polishing cleaning；Step 5, the sensor fastening device for being provided with sensor is positioned over above tested pipeline, and sensor angles is carried out Fine setting, makes itself and tested pipeline intimate surface contact, then using bandage that sensor fastening device and tested pipeline is closely solid It is fixed；Step 6, sensor conductor is connected, opens pipeline leakage checking system, obtains testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100138.9A CN107676636B (en) | 2017-11-09 | 2017-11-09 | A kind of pipeline leakage testing sensor fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100138.9A CN107676636B (en) | 2017-11-09 | 2017-11-09 | A kind of pipeline leakage testing sensor fixing means |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676636A true CN107676636A (en) | 2018-02-09 |
| CN107676636B CN107676636B (en) | 2019-05-10 |
Family
ID=61145606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711100138.9A Active CN107676636B (en) | 2017-11-09 | 2017-11-09 | A kind of pipeline leakage testing sensor fixing means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676636B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115886A (en) * | 2018-08-03 | 2019-01-01 | 吕梁学院 | The detection of side formula acoustic emission sensor fixed device and its installing and fixing method |
| CN109115887A (en) * | 2018-08-03 | 2019-01-01 | 吕梁学院 | The detection of tail formula acoustic emission sensor fixed device and its installing and fixing method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031181A2 (en) * | 2010-09-03 | 2012-03-08 | Bp Corporation North America Inc. | Method and device for sensing corrosion under insulation (cui) |
| CN202284721U (en) * | 2011-08-25 | 2012-06-27 | 重庆煌能科技有限公司 | Nondestructive detection sensing device for leakage signals of long distance pipeline |
| CN203771040U (en) * | 2014-03-07 | 2014-08-13 | 镇江天颐装备科技有限公司 | Ultrasonic guided wave probe fixing device for pipeline detection |
| CN204005278U (en) * | 2014-09-01 | 2014-12-10 | 张冰 | Pressure fluid pipeline leak detection instrument |
| CN204666211U (en) * | 2015-04-17 | 2015-09-23 | 华电电力科学研究院 | A kind of flow-meter probe stationary installation |
| CN204925045U (en) * | 2015-07-22 | 2015-12-30 | 杭州电子科技大学 | Flexible array detection probe unit of vertical guided wave of pipeline supersound |
| CN205426253U (en) * | 2015-03-11 | 2016-08-03 | 国家电网公司 | Big pipe diameter anchor clamps of ultrasonic wave flow measurement sensor |
| CN205600551U (en) * | 2016-04-25 | 2016-09-28 | 山东天元信息技术股份有限公司 | Pipeline inspection earthquake sensor fixed device |
| CN206002199U (en) * | 2016-08-19 | 2017-03-08 | 中国石油化工股份有限公司 | Acoustic signal sensor probe fixing device |
| CN207486455U (en) * | 2017-11-09 | 2018-06-12 | 内蒙古科技大学 | A kind of pipeline leakage testing sensor fastening device |
-
2017
- 2017-11-09 CN CN201711100138.9A patent/CN107676636B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012031181A2 (en) * | 2010-09-03 | 2012-03-08 | Bp Corporation North America Inc. | Method and device for sensing corrosion under insulation (cui) |
| CN202284721U (en) * | 2011-08-25 | 2012-06-27 | 重庆煌能科技有限公司 | Nondestructive detection sensing device for leakage signals of long distance pipeline |
| CN203771040U (en) * | 2014-03-07 | 2014-08-13 | 镇江天颐装备科技有限公司 | Ultrasonic guided wave probe fixing device for pipeline detection |
| CN204005278U (en) * | 2014-09-01 | 2014-12-10 | 张冰 | Pressure fluid pipeline leak detection instrument |
| CN205426253U (en) * | 2015-03-11 | 2016-08-03 | 国家电网公司 | Big pipe diameter anchor clamps of ultrasonic wave flow measurement sensor |
| CN204666211U (en) * | 2015-04-17 | 2015-09-23 | 华电电力科学研究院 | A kind of flow-meter probe stationary installation |
| CN204925045U (en) * | 2015-07-22 | 2015-12-30 | 杭州电子科技大学 | Flexible array detection probe unit of vertical guided wave of pipeline supersound |
| CN205600551U (en) * | 2016-04-25 | 2016-09-28 | 山东天元信息技术股份有限公司 | Pipeline inspection earthquake sensor fixed device |
| CN206002199U (en) * | 2016-08-19 | 2017-03-08 | 中国石油化工股份有限公司 | Acoustic signal sensor probe fixing device |
| CN207486455U (en) * | 2017-11-09 | 2018-06-12 | 内蒙古科技大学 | A kind of pipeline leakage testing sensor fastening device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115886A (en) * | 2018-08-03 | 2019-01-01 | 吕梁学院 | The detection of side formula acoustic emission sensor fixed device and its installing and fixing method |
| CN109115887A (en) * | 2018-08-03 | 2019-01-01 | 吕梁学院 | The detection of tail formula acoustic emission sensor fixed device and its installing and fixing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107676636B (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207486455U (en) | A kind of pipeline leakage testing sensor fastening device | |
| US6396262B2 (en) | Method and apparatus for short term inspection or long term structural health monitoring | |
| CN103913714B (en) | Calibration system of partial discharge supersonic detector | |
| US6429650B1 (en) | Method and apparatus generating and detecting torsional wave inspection of pipes or tubes | |
| US6624628B1 (en) | Method and apparatus generating and detecting torsional waves for long range inspection of pipes and tubes | |
| US5670879A (en) | Nondestructive inspection device and method for monitoring defects inside a turbine engine | |
| US6294912B1 (en) | Method and apparatus for nondestructive inspection of plate type ferromagnetic structures using magnetostrictive techniques | |
| US8820163B2 (en) | Nondestructive inspection apparatus and nondestructive inspection method using guided wave | |
| US6373245B1 (en) | Method for inspecting electric resistance welds using magnetostrictive sensors | |
| CN108088900A (en) | A kind of multifunctional combination probe for pipeline detection | |
| CN110261487A (en) | A kind of damage detection apparatus System and method for of composite material pressure container | |
| CN108845000A (en) | A kind of method of pulsed field fingerprint technique measurement defect of pipeline | |
| CN107676636B (en) | A kind of pipeline leakage testing sensor fixing means | |
| CN103424412B (en) | Based on the composite cylinder detection system of infrared thermal imaging | |
| CN111413198A (en) | Acoustic emission-resistivity-stress synchronous testing device and method for rock | |
| KR101598823B1 (en) | Safety Test Method For Suspension Bridge Cable | |
| JP5127574B2 (en) | Inspection method using guide waves | |
| KR101430183B1 (en) | Detachable self magnetostrictive sensor apparatus for inspecting pipe | |
| CN207908434U (en) | A kind of multifunctional combination probe for pipeline detection | |
| KR101210472B1 (en) | Apparatus and method for detecting the micro-scale crack using nonlinear characteristics of ultrasonic resonance | |
| CN113758997B (en) | Metal sample micro-damage detection device based on frequency mixing nonlinear ultrasonic guided wave | |
| KR200446596Y1 (en) | The Acoustic Emission Signal Acquisition Assembly for Leak Detection of Closure Plug in Heavy Water Reactor | |
| CN107356386A (en) | A kind of method that vibratory equipment confirms | |
| JP4978870B2 (en) | Leakage pipe inspection method and inspection apparatus | |
| CN221199559U (en) | Pipeline ultrasonic inner detector working state detection device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |