CN105822860A - Non-welding flange structure for shock wave tube - Google Patents
Non-welding flange structure for shock wave tube Download PDFInfo
- Publication number
- CN105822860A CN105822860A CN201610299413.3A CN201610299413A CN105822860A CN 105822860 A CN105822860 A CN 105822860A CN 201610299413 A CN201610299413 A CN 201610299413A CN 105822860 A CN105822860 A CN 105822860A
- Authority
- CN
- China
- Prior art keywords
- semi
- circular flange
- flange dish
- circumferential recess
- shock tube
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a non-welding flange structure for a shock wave tube. The non-welding flange structure is installed at the peripheries of the bonded end surfaces of a first tube body and a second tube body in a sleeving manner, and a first peripheral groove and a second peripheral groove are formed in outer rings of the first tube body and the second tube body respectively. The non-welding flange structure comprises two first semicircular flange discs which are symmetrically arranged in the first peripheral groove, two second semicircular flange discs which are symmetrically arranged in the second peripheral groove, and tightening rings used for peripherally limiting the first semicircular flange discs and the second semicircular flange discs, wherein the tightening rings are located between the first semicircular flange discs and the second semicircular flange discs. According to the non-welding flange structure disclosed by the invention, the first semicircular flange discs and the second semicircular flange discs are peripherally limited through the tightening rings without welding, thus deformation of the tube bodies or the flange discs due to welding is avoided, and the requirements of high linearity and high coaxiality of the tube bodies can be easily met; and moreover, the non-welding flange structure is convenient to install and easy to detach.
Description
Technical field
The present invention relates to flange arrangement, in particular to a kind of no-welding type flange arrangement for shock tube.
Background technology
Shock tube is to produce high speed shock wave by height pressure reduction moment, then utilize shock wave that material is heated, pressurize to obtain high adiabatic flame temperature and the experimental provision of pressure, owing to shock tube can provide more broad experiment condition, therefore it is widely used in the middle of the most multi-disciplinary research.
Shock tube uses incidence and reflected shock wave material to carry out constant entropy uniform, non-, adiabatic compression, so the generation of shock wave and operation conditions play vital effect to shock tube experiment.The major parameter affecting shock wave operation has: body linearity, body axiality and inner surface of tube body roughness.Therefore, in order to ensure the levels of precision of shock tube experiment, should try one's best in the Design and Machining of shock tube the raising linearity of body, axiality and inner surface of tube body roughness.
In the processing and manufacturing of shock tube, owing to shock tube length is longer, it usually needs body is divided into several sections, flange arrangement is then used to be attached.Traditional flange is all to be arranged on body by the way of welding, and the high temperature of welding process inevitably results in the bending of body and ring flange, thus reduces linearity and the axiality of shock tube body, affects the operation of shock wave.
Summary of the invention
Present invention aim to provide a kind of no-welding type flange arrangement for shock tube, first semi-circular flange dish and the second semi-circular flange dish are carried out circumferential spacing by lock ring circle by this flange arrangement, without welding, avoid welding and cause body or ring flange deformation, disclosure satisfy that body height linearity and the requirement of high-axiality, and easy for installation, it is easy to dismounting.
For achieving the above object, the no-welding type flange arrangement for shock tube designed by the present invention, it is sleeved on the first body and end face periphery that the second body fits, the outer ring of described first body and the second body has the first circumferential recess, second circumferential recess, it includes two the first semi-circular flange dishes being symmetricly set in the first circumferential recess, two the second semi-circular flange dishes being symmetricly set in the second circumferential recess, and for the first semi-circular flange dish and the second semi-circular flange dish being carried out the lock ring circle that circumference is spacing, described lock ring circle is between the first semi-circular flange dish and the second semi-circular flange dish.So, the first semi-circular flange dish and the second semi-circular flange dish are carried out circumferential spacing by lock ring circle, it is not necessary to welding, thus avoid welding and cause body or flange distortion.
Further, described lock ring circle two side ends offers first annular stopper slot and the second annular spacing groove respectively towards interior, it is spacing that the symmetrically arranged first semi-circular flange dish of said two forms circumference in embedding first annular stopper slot, and it is spacing that the symmetrically arranged second semi-circular flange dish of said two forms circumference in embedding the second annular spacing groove.So, the first semi-circular flange dish and the second semi-circular flange dish, by embedding in corresponding first annular stopper slot and the second annular spacing groove, are conducive to improving the linearity between the first body and the second body and axiality.
Further, described first semi-circular flange dish, lock ring circle and the second semi-circular flange dish being equipped with several through holes running through both sides end face, several described through hole along the circumferential direction uniform intervals are distributed.Described first semi-circular flange dish, lock ring circle and the second semi-circular flange dish are fastenedly connected by the bolt and nut component being located in corresponding through hole.So, the first semi-circular flange dish, lock ring circle and the second semi-circular flange dish are locked by bolt and nut component, and the first body and the second body are clamped, thus ensure that high linearity and the high-axiality of body.
Further, the internal diameter of described lock ring circle and the external diameter of the first body or the second body are equal, it is thus possible to ensure to fit tightly between lock ring circle and two bodys.
Further, the inner ring of described first semi-circular flange dish and the inwall of the first circumferential recess overlap, the inner ring of described second semi-circular flange dish and the inwall of the second circumferential recess overlap, it is thus possible to ensure between inner ring and the inwall of the first circumferential recess of the first semi-circular flange dish, fit tightly between the inner ring of the second semi-circular flange dish and the inwall of the second circumferential recess.
Further, the described outer ring of the first semi-circular flange dish overlaps with the inwall of first annular stopper slot, the described outer ring of the second semi-circular flange dish overlaps with the inwall of the second annular spacing groove, it is thus possible to ensure between outer ring and the inwall of first annular stopper slot of the first semi-circular flange dish, fit tightly between the outer ring of the second semi-circular flange dish and the inwall of the second annular spacing groove.
Further, the spacing between described first circumferential recess and the second circumferential recess is equal to the spacing between first annular stopper slot and the second annular spacing groove, thus is prone to axially position lock ring circle.
Yet further, the end face outer rim that described first body and the second body fit is provided with the annular stopper structure ensureing its axiality, such that it is able to be further ensured that the first body and the linearity of the second body and axiality.
Further, the end face that described first body and the second body fit is additionally provided with O-ring seal, thus advantageously ensures that the first body and the sealing of the second body junction.
Compared with prior art, present invention have the advantage that
One, the first semi-circular flange dish and the second semi-circular flange dish are carried out circumferential spacing by lock ring circle by the flange arrangement of the present invention, it is not necessary to welding, thus avoid welding and cause body or flange distortion.
Its two, the first semi-circular flange dish of the present invention and the second semi-circular flange dish are fastenedly connected through bolt and nut component in the second annular spacing groove by embedding corresponding first annular stopper slot again, it is possible to the high linearity of guarantee body and high-axiality.
Its three, the simple in construction of the present invention, easy for installation, be readily disassembled, practical.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of a kind of no-welding type flange arrangement for shock tube；
Fig. 2 is the sectional structure schematic diagram of lock ring circle in Fig. 1；
Fig. 3 is the structural representation of the first semi-circular flange dish in Fig. 1；
Wherein: first body the 1, second body the 2, first circumferential recess the 3, second circumferential recess the 4, first semi-circular flange dish the 5, second semi-circular flange dish 6, lock ring circle 7, first annular stopper slot the 8, second annular spacing groove 9, through hole 10, bolt and nut component 11, annular stopper structure 12, O-ring seal 13.
Detailed description of the invention
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
The no-welding type flange arrangement for shock tube shown in figure, between the first body 1 and the second body 2, the outer ring of the first body 1 and the second body 2 has the first circumferential recess 3, second circumferential recess 4, it includes two the first semi-circular flange dishes 5 being symmetricly set in the first circumferential recess 3, two the second semi-circular flange dishes 6 being symmetricly set in the second circumferential recess 4, and for the first semi-circular flange dish 5 and the second semi-circular flange dish 6 being carried out the lock ring circle 7 that circumference is spacing, lock ring circle 7 is between the first semi-circular flange dish 5 and the second semi-circular flange dish 6.So, the first semi-circular flange dish 5 and the second semi-circular flange dish 6 are carried out circumferential spacing by lock ring circle 7, it is not necessary to welding, thus avoid welding and cause body or flange distortion.
In technique scheme, lock ring circle 7 two side ends offers first annular stopper slot 8 and the second annular spacing groove 9 respectively towards interior, it is spacing that two symmetrically arranged first semi-circular flange dishes 5 form circumference in embedding first annular stopper slot 8, and it is spacing that two symmetrically arranged second semi-circular flange dishes 6 form circumference in embedding the second annular spacing groove 9.So, the first semi-circular flange dish 5, is conducive to improving the linearity between the first body 1 and the second body 2 and axiality by embedding in corresponding first annular stopper slot 8 and the second annular spacing groove 9 with the second semi-circular flange dish 6.
In technique scheme, the first semi-circular flange dish 5, lock ring circle 7 and the second semi-circular flange dish 6 being equipped with several through holes 10 running through both sides end face, several through hole 10 along the circumferential direction uniform intervals are distributed.First semi-circular flange dish 5, lock ring circle 7 and the second semi-circular flange dish 6 are fastenedly connected by the bolt and nut component 11 being located in corresponding through hole 10.So, the first semi-circular flange dish 5, lock ring circle 7 and the second semi-circular flange dish 6 are locked by bolt and nut component 11, and the first body 1 and the second body 2 are clamped, thus ensure that high linearity and the high-axiality of body.
In technique scheme, the internal diameter of lock ring circle 7 and the external diameter of the first body 1 or the second body 2 are equal, it is thus possible to ensure to fit tightly between lock ring circle 7 and two bodys.The inner ring of the first semi-circular flange dish 5 and the inwall of the first circumferential recess 3 overlap, the inner ring of the second semi-circular flange dish 6 and the inwall of the second circumferential recess 4 overlap, it is thus possible to ensure between inner ring and the inwall of the first circumferential recess 3 of the first semi-circular flange dish 5, fit tightly between the inner ring of the second semi-circular flange dish 6 and the inwall of the second circumferential recess 4.The outer ring of the first semi-circular flange dish 5 overlaps with the inwall of first annular stopper slot 8, the outer ring of the second semi-circular flange dish 6 overlaps with the inwall of the second annular spacing groove 9, it is thus possible to ensure between outer ring and the inwall of first annular stopper slot 8 of the first semi-circular flange dish 5, fit tightly between the outer ring of the second semi-circular flange dish and the inwall of the second annular spacing groove.Spacing between first circumferential recess 3 and the second circumferential recess 4 is equal to the spacing between first annular stopper slot 8 and the second annular spacing groove 9, thus is prone to axially position lock ring circle 7.The end face outer rim that first body 1 and the second body 2 fit is provided with the annular stopper structure 12 ensureing its axiality, such that it is able to be further ensured that the first body 1 and the linearity of the second body 2 and axiality.The end face that first body 1 and the second body 2 fit is additionally provided with O-ring seal 13, thus advantageously ensures that the first body 1 and sealing of the second body 2 junction.
nullThe using method of the present invention: first the first body 1 and the second body 2 are split horizontal positioned，Again two the first semi-circular flange dishes 5 are symmetrically mounted in the first circumferential recess 3 on the first body 1，Then lock ring circle 7 is inserted in from one end with the first circumferential recess 3 of the first body 1，Two symmetrically arranged first semi-circular flange dishes 5 are embedded in first annular stopper slot 8，Slip lock ring circle 7 makes it be close to the outer ring of the first semi-circular flange dish 5，Then two the second semi-circular flange dishes 6 are symmetrically mounted in the second circumferential recess 4 on the second body 2，Promote the second body 2 that two symmetrically arranged second semi-circular flange dishes 6 are embedded in the second annular spacing groove 9，Finely tune the first semi-circular flange dish 5、Lock ring circle 7 and the angle of the second semi-circular flange dish 6，Make through hole 10 the most corresponding，Bolt and nut component 11 is sequentially passed through the first semi-circular flange dish 5、The through hole 10 of lock ring circle 7 and the second semi-circular flange dish 6 is locked，First body 1 and the second body 2 are clamped，Complete to be tightly connected.
The above, the only detailed description of the invention of the present invention, it is noted that any those of ordinary skill in the art in the technical scope that disclosed herein, the change that can readily occur in or replacement, all should contain within protection scope of the present invention.
Claims (9)
1. the no-welding type flange arrangement for shock tube, it is sleeved on the first body (1) and end face periphery that the second body (2) fits, the outer ring of described first body (1) and the second body (2) has the first circumferential recess (3), second circumferential recess (4), it is characterized in that: it includes two the first semi-circular flange dishes (5) being symmetricly set in the first circumferential recess (3), two the second semi-circular flange dishes (6) being symmetricly set in the second circumferential recess (4), and for the first semi-circular flange dish (5) and the second semi-circular flange dish (6) being carried out the lock ring circle (7) that circumference is spacing, described lock ring circle (7) is positioned between the first semi-circular flange dish (5) and the second semi-circular flange dish (6).
No-welding type flange arrangement for shock tube the most according to claim 1, it is characterized in that: described lock ring circle (7) two side ends offers first annular stopper slot (8) and the second annular spacing groove (9) respectively towards interior, it is spacing that the symmetrically arranged first semi-circular flange dish (5) of said two forms circumference in embedding first annular stopper slot (8), and it is spacing that the symmetrically arranged second semi-circular flange dish (6) of said two forms circumference in embedding the second annular spacing groove (9).
No-welding type flange arrangement for shock tube the most according to claim 1 and 2, it is characterized in that: be equipped with several through holes running through both sides end face (10) on described first semi-circular flange dish (5), lock ring circle (7) and the second semi-circular flange dish (6), several described through hole (10) along the circumferential direction uniform intervals are distributed；
Described first semi-circular flange dish (5), lock ring circle (7) and the second semi-circular flange dish (6) are fastenedly connected by the bolt and nut component (11) being located in corresponding through hole (10).
No-welding type flange arrangement for shock tube the most according to claim 1 and 2, it is characterised in that: the internal diameter of described lock ring circle (7) and the external diameter of the first body (1) or the second body (2) are equal.
No-welding type flange arrangement for shock tube the most according to claim 1 and 2, it is characterised in that: the inner ring of described first semi-circular flange dish (5) and the inwall of the first circumferential recess (3) overlap；The inner ring of described second semi-circular flange dish (6) and the inwall of the second circumferential recess (4) overlap.
No-welding type flange arrangement for shock tube the most according to claim 2, it is characterised in that: the described outer ring of the first semi-circular flange dish (5) overlaps with the inwall of first annular stopper slot (8)；The described outer ring of the second semi-circular flange dish (6) overlaps with the inwall of the second annular spacing groove (9).
No-welding type flange arrangement for shock tube the most according to claim 2, it is characterised in that: the spacing between described first circumferential recess (3) and the second circumferential recess (4) is equal to the spacing between first annular stopper slot (8) and the second annular spacing groove (9).
No-welding type flange arrangement for shock tube the most according to claim 1 and 2, it is characterised in that: the end face outer rim that described first body (1) and the second body (2) fit is provided with the annular stopper structure (12) ensureing its axiality.
No-welding type flange arrangement for shock tube the most according to claim 8, it is characterised in that: the end face that described first body (1) and the second body (2) fit is additionally provided with O-ring seal (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299413.3A CN105822860B (en) | 2016-05-09 | 2016-05-09 | For the no-welding type flange arrangement of shock tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610299413.3A CN105822860B (en) | 2016-05-09 | 2016-05-09 | For the no-welding type flange arrangement of shock tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822860A true CN105822860A (en) | 2016-08-03 |
| CN105822860B CN105822860B (en) | 2018-06-15 |
Family
ID=56528354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610299413.3A Active CN105822860B (en) | 2016-05-09 | 2016-05-09 | For the no-welding type flange arrangement of shock tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822860B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640885A (en) * | 2016-11-15 | 2017-05-10 | 中国电力科学研究院 | Flange connection device and composite material electrical equipment with flange connection device |
| CN107115736A (en) * | 2017-06-28 | 2017-09-01 | 江苏鼎盛滤袋有限公司 | A kind of Combined type filter bag |
| CN108644501A (en) * | 2018-06-29 | 2018-10-12 | 鞍钢建设集团有限公司 | A kind of flange assembled heavy caliber high pressure assembling pipe joint |
| CN110000724A (en) * | 2019-04-03 | 2019-07-12 | 王春晖 | A kind of docking facilities fixed for shock tube diaphragm |
| CN110307241A (en) * | 2019-07-15 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of shock tube anti-dropout big nut |
| CN110906078A (en) * | 2019-11-23 | 2020-03-24 | 安徽欣景隆轨道车辆装备有限公司 | Flange joint |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895833A (en) * | 1974-02-19 | 1975-07-22 | Certain Teed Prod Corp | Flange connector assembly for grooved pipe |
| EP0010332A1 (en) * | 1978-10-25 | 1980-04-30 | GENERAL TECHNIC s.e.c.s. | Coupling element and method of making the same |
| US4529232A (en) * | 1982-08-26 | 1985-07-16 | Hermann Berstorff Maschinenbau Gmbh | Cylinder or barrel flange connection |
| CN104455838A (en) * | 2014-09-25 | 2015-03-25 | 无锡康柏斯机械科技有限公司 | Flange convenient to mount and demount |
| CN205745757U (en) * | 2016-05-09 | 2016-11-30 | 武汉理工大学 | No-welding type flange arrangement for shock tube |
-
2016
- 2016-05-09 CN CN201610299413.3A patent/CN105822860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895833A (en) * | 1974-02-19 | 1975-07-22 | Certain Teed Prod Corp | Flange connector assembly for grooved pipe |
| EP0010332A1 (en) * | 1978-10-25 | 1980-04-30 | GENERAL TECHNIC s.e.c.s. | Coupling element and method of making the same |
| US4529232A (en) * | 1982-08-26 | 1985-07-16 | Hermann Berstorff Maschinenbau Gmbh | Cylinder or barrel flange connection |
| CN104455838A (en) * | 2014-09-25 | 2015-03-25 | 无锡康柏斯机械科技有限公司 | Flange convenient to mount and demount |
| CN205745757U (en) * | 2016-05-09 | 2016-11-30 | 武汉理工大学 | No-welding type flange arrangement for shock tube |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640885A (en) * | 2016-11-15 | 2017-05-10 | 中国电力科学研究院 | Flange connection device and composite material electrical equipment with flange connection device |
| CN107115736A (en) * | 2017-06-28 | 2017-09-01 | 江苏鼎盛滤袋有限公司 | A kind of Combined type filter bag |
| CN108644501A (en) * | 2018-06-29 | 2018-10-12 | 鞍钢建设集团有限公司 | A kind of flange assembled heavy caliber high pressure assembling pipe joint |
| CN108644501B (en) * | 2018-06-29 | 2024-03-19 | 鞍钢建设集团有限公司 | Flange assembly type large-caliber high-pressure pipeline connecting device |
| CN110000724A (en) * | 2019-04-03 | 2019-07-12 | 王春晖 | A kind of docking facilities fixed for shock tube diaphragm |
| CN110307241A (en) * | 2019-07-15 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of shock tube anti-dropout big nut |
| CN110906078A (en) * | 2019-11-23 | 2020-03-24 | 安徽欣景隆轨道车辆装备有限公司 | Flange joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105822860B (en) | 2018-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105822860A (en) | Non-welding flange structure for shock wave tube | |
| PH12018000414B1 (en) | Hub apparatus and associated systems | |
| WO2017219821A1 (en) | Anti-scratch cleanable ball valve seat structure | |
| JP2017082891A5 (en) | ||
| CN205745757U (en) | No-welding type flange arrangement for shock tube | |
| CN204083647U (en) | High pressure pipe line port sealing structure | |
| CN102670063A (en) | Electric heating kettle | |
| CN103335180A (en) | Flange plate component | |
| CN103353031A (en) | Sleeve joint flange plate assembly | |
| CN105571352A (en) | Novel single-tube pass floating head heat exchanger | |
| CN105042239B (en) | Heat exchanger tube pressure testing inner intumescence type snap joint | |
| CN105202089A (en) | Integrated side pressure V-shaped spring and sealing ring with same | |
| CN204267977U (en) | A kind of seal for pipe joints plug | |
| CN203533019U (en) | Sealing connection structure of threaded connection composite tube connector | |
| CN203979693U (en) | A kind of lock contracting formula inipple of Stainless Steel Tube | |
| CN204187178U (en) | Automobile-used inner flange forging | |
| CN203036136U (en) | High pressure detachable type ball sealing pressure measuring connector | |
| CN204942881U (en) | A kind of low temperature vacuum thermal insulation pipeline single axial expansion joint | |
| CN204345061U (en) | A kind of valve of valve with changeable valve seat | |
| CN204692835U (en) | A kind of flange gasket peculiar to vessel | |
| CN203843106U (en) | Flange mold convenient to replace | |
| CN103032650A (en) | Sealing connection structure of glass light tube and metal tube | |
| CN204345126U (en) | The flange plate of the axially locating improved | |
| CN103322347A (en) | Novel flange plate component | |
| ZA202203969B (en) | Method for producing a pipeline arrangement, and pipeline arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |