CN107420663A - A kind of more chuck pressure type assembling pipe joints - Google Patents
A kind of more chuck pressure type assembling pipe joints Download PDFInfo
- Publication number
- CN107420663A CN107420663A CN201710669788.9A CN201710669788A CN107420663A CN 107420663 A CN107420663 A CN 107420663A CN 201710669788 A CN201710669788 A CN 201710669788A CN 107420663 A CN107420663 A CN 107420663A
- Authority
- CN
- China
- Prior art keywords
- tubing
- ring
- isolation pad
- ring seals
- pipe fitting
- 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
- 238000002955 isolation Methods 0.000 claims abstract description 38
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 14
- 208000002925 dental caries Diseases 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/07—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The present invention relates to the technical field of pipe fitting,Especially a kind of more chuck pressure type assembling pipe joints,Two tubing with Relative distribution and a pipe fitting for connecting two tubing,The both sides port of described pipe fitting is respectively provided with flange,The inner side of described flange is provided with flange form clip,The inner of every tubing is arranged with first of O-ring seals successively from inside to outside,First of isolation pad,Second O-ring seals,Second isolation pad,3rd O-ring seals and the 3rd isolation pad,3rd isolation pad outside of every tubing offers mounting groove,Snap ring is installed in described mounting groove,The outer wrap of described snap ring is provided with back-up ring,Flange form platen is also arranged with every tubing,Screw hole on flange form clip is corresponding with the screw hole site on homonymy flange form platen and is docked using connecting screw.More chuck pressure type assembling pipe joints ensure that tubing can not depart from the cavity of pipe fitting, and pipeline is reached tension and dial function.
Description
Technical field
The present invention relates to the technical field of pipe fitting, especially a kind of more chuck pressure type assembling pipe joints.
Background technology
Pipeline be with tubing, tube connection piece and valve etc. connect into be used for convey gas, liquid or with solid particle
Fluid device.Generally, fluid flows to low pressure after the supercharging such as air blower, compressor, pump and boiler at the high pressure of pipeline
Place, pressure or the gravity conveying of fluid itself can also be used.Having many uses for pipeline is general, is used primarily in building water supply, draining, confession
Heat, give gas, in long distance delivery oil and natural gas, medical oxygen, agricultural irrigation, hydraulic engineering and various commercial plants,
With the continuous application of pipeline, the design for the connector of connecting pipe also continues to develop.At present, it is existing miscellaneous
The sealing effectiveness of metal tube is not highly desirable, and the metal tube of good sealing effect also is difficult to push away because production cost is too high
Extensively.
The content of the invention
The technical problem to be solved in the present invention is：In order to solve the problems, such as that the prior art in above-mentioned background technology is present,
A kind of more chuck pressure type assembling pipe joints are provided, can be compared with the raising sealing effectiveness of limits and service life, it is ensured that tubing without
Method departs from the cavity of pipe fitting, pipeline is reached tension while sealing effectiveness is ensured and dials function and the anti-function of expanding with heat and contract with cold,
And production cost can be substantially reduced, the cumbersome process of pipe fitting cutting thread is broken away from, saves mineral resources.
The technical solution adopted for the present invention to solve the technical problems is：A kind of more chuck pressure type assembling pipe joints, tool
There are two tubing of Relative distribution and a pipe fitting for connecting two tubing, the both sides port of described pipe fitting, which is respectively provided with, to be turned over
Side, the inner side of described flange are provided with flange form clip, and it is close that the inner of every tubing is arranged with first of O shape successively from inside to outside
Seal, first of isolation pad, second O-ring seals, second isolation pad, the 3rd O-ring seals and the 3rd every
From pad, the 3rd isolation pad outside of every tubing offers mounting groove, and snap ring, institute are provided with described mounting groove
The outer wrap for the snap ring stated is provided with back-up ring, is also arranged with flange form platen on every tubing, the screw on flange form clip
Hole is corresponding with the screw hole site on homonymy flange form platen and is docked using connecting screw.
Further specifically, in above-mentioned technical proposal, positioned at the outermost 3rd isolation on described every tubing
Pad is in contact with the medial surface of its outside back-up ring.
Further specifically, in above-mentioned technical proposal, first described of O-ring seals, second O-ring seals and
The specification of 3rd O-ring seals is identical；The specification of first of isolation pad, second isolation pad and the 3rd isolation pad
It is identical.
Further specifically, in above-mentioned technical proposal, first described of O-ring seals, second O-ring seals and
Bulk of the line footpath size of 3rd O-ring seals slightly larger than pipe fitting and tubing.
Further specifically, in above-mentioned technical proposal, described pipe fitting is middle part necking, the symmetrical junction of both ends enlarging
Structure, is connected between the necking cavity and enlarging cavity of pipe fitting by 45 ° of cavity transition, and first of O-ring seals connects with 45 ° of cavitys
Touch.
The beneficial effects of the invention are as follows：During connecting screw docking screws, flange form clip is limited to turning over for pipe fitting
The limitation on side can not move laterally, and then the drive for making flange form platen be screwed by connecting screw moves inward, flange
Formula platen promotes back-up ring also to move inward during moving inward, and active force is transmitted to the 3rd isolation by back-up ring successively
Pad, the 3rd O-ring seals, second isolation pad, second O-ring seals, first of isolation pad and first of O shape
Sealing ring, untill first of O-ring seals is in close contact with 45 ° of cavitys in pipe fitting and reaches sealing effectiveness, back-up ring is pushing away
Simultaneously because the function of snap ring moves inward tubing drive in dynamic, it is ensured that tubing can not depart from the cavity of pipe fitting, and make pipe
Road reaches tension and dials function.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation one of the present invention；
Fig. 2 is Fig. 1 decomposition texture schematic diagram；
Fig. 3 is the structural representation of pipe fitting；
Fig. 4 is the structural representation of flange form clip；
Fig. 5 is the structural representation of flange form platen；
Fig. 6 is the structural representation two of the present invention.
Label in accompanying drawing：1st, pipe fitting；2nd, tubing；3rd, flange form clip；4th, first of O-ring seals；5th, first of isolation
Pad；6th, second O-ring seals；7th, second isolation pad；8th, the 3rd O-ring seals；9th, the 3rd isolation pad；
10th, mounting groove；11st, snap ring；12nd, back-up ring；13rd, flange form platen.
Embodiment
In order that technical problem solved by the invention, technical scheme and beneficial effect are more clearly understood, below in conjunction with
Drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
See Fig. 1~6, a kind of more chuck pressure type assembling pipe joints of the invention, there are two Hes of tubing 2 of Relative distribution
For connecting a pipe fitting 1 of two tubing 2, the both sides port of pipe fitting 1 is respectively provided with flange, and the inner side of flange is provided with flange form card
Hoop 3, the inner of every tubing 2 are arranged with first of O-ring seals 4, first of isolation pad 5, second O successively from inside to outside
Shape sealing ring 6, second isolation pad 7, the 3rd O-ring seals 8 and the 3rd isolation pad 9, the 3rd of every tubing 2 the
The outside of isolation pad 9 offers mounting groove 10, and snap ring 11 is provided with mounting groove 10, and the outer wrap of snap ring 11 is provided with
Back-up ring 12, is also arranged with flange form platen 13 on every tubing 2, screw hole and homonymy flange form platen on flange form clip 3
Screw hole site on 13 is corresponding and is docked using connecting screw.
It is in contact on every tubing 2 positioned at outermost 3rd isolation pad 9 with the medial surface of its outside back-up ring 12.
First of O-ring seals 4, second O-ring seals 6 are identical with the specification of the 3rd O-ring seals 8；First of isolation pad
5th, second isolation pad 7 is identical with the specification of the 3rd isolation pad 9.First of O-ring seals 4, second O-ring seals
6 and the 3rd O-ring seals 8 line footpath size slightly larger than pipe fitting 1 and tubing 2 bulk, that is to say, that O-ring seals exist
It is pushed into the cavity of pipe fitting 1 and has just played just sealing function, then process is locked by flange form platen 13 and flange form clip 3
In caused by the squeeze pressures of O-ring seals, promote the closeness of contact of O-ring seals and pipe fitting 1 and tubing 2 to reach pole
Limit, possesses the requirement for bearing high-pressure system.
Pipe fitting 1 is middle part necking, the symmetrical structure of both ends enlarging, by 45 ° between the necking cavity and enlarging cavity of pipe fitting 1
Cavity transition connects, and first of O-ring seals 4 is in contact with 45 ° of cavitys.
Angled transitional cavity institute between the necking cavity and enlarging cavity of pipe fitting 1 can be 0~90 °, and pipe fitting 1 can be with
Using light-wall pipe, by professional equipment extrusion forming process, can also casting technique be used to produce.
Flange form clip 3 is symmetrical arranged using two-flap type flange form clip, its two lobe point.
Snap ring 11 has a counter sink of isosceles trapezoid using open type snap ring on back-up ring 12, isosceles trapezoid with it is horizontal
It is 0~90 ° that institute is angled between face, and snap ring 11 is wrapped in mounting groove 10 by the counter sink of the isosceles trapezoid, makes snap ring 11
It can not expand, tubing 2 can not be deviate from from pipe fitting 1.
First of O-ring seals 4 contacts with medium in pipeline, plays primary sealing function.First of O-ring seals 4
Can be the right-angled trapezium shape corresponding with 45 ° of cavitys in pipe fitting 1.3rd O-ring seals 8 and contacting external air, are played
Isolate the sealing function of extraneous medium.Second O-ring seals 6 are in vacuum state, are first of O-ring seals 4 and the 3rd
Road O-ring seals 8 provide standby guarantee, substantially increase the service life of pipeline, reach pipeline and are provided with super-long service life
Life, it is the history sexual revolution of pipe-line system.
The material first choice thermostable fluorine of first of O-ring seals 4, the O-ring seals 8 of second O-ring seals 6 and the 3rd
Glue and sanitation-grade silica gel, but it is not excluded for the encapsulant using other materials.
Pipe fitting 1, tubing 2, flange form clip 3, first of isolation pad 5, second isolation pad 7, the 3rd isolating pad
Piece 9, snap ring 11, back-up ring 12 and flange form platen 13 can be made up of any one metal material.
During connecting screw docking screws, the limitation that flange form clip 3 is limited to the flange of pipe fitting 1 can not be laterally
Mobile, and then the drive for making flange form platen 13 be screwed by connecting screw moves inward, flange form platen 13 is to inner side
Back-up ring 12 is promoted also to move inward in mobile process, active force is transmitted to the 3rd isolation pad the 9, the 3rd by back-up ring 12 successively
Road O-ring seals 8, second isolation pad 7, second O-ring seals 6, first of isolation pad 5 and first of O shapes sealing
Circle 4, untill first of O-ring seals 4 is in close contact with 45 ° of cavitys in pipe fitting 1 and reaches sealing effectiveness, back-up ring 12 is pushing away
Simultaneously because the function of snap ring 11 moves inward the drive of tubing 2 in dynamic, it is ensured that tubing 2 can not depart from the cavity of pipe fitting 1, and
Pipeline is reached tension and dial function.
It is above-described, it is only the preferable embodiment of the present invention, but protection scope of the present invention is not limited to
This, any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme
And its inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
- A kind of 1. more chuck pressure type assembling pipe joints, it is characterised in that：Two tubing with Relative distribution（2）With for even Connect two tubing（2）A pipe fitting（1）, described pipe fitting（1）Both sides port be respectively provided with flange, the inner side of described flange Provided with flange form clip（3）, every tubing（2）The inner be arranged with first of O-ring seals successively from inside to outside（4）, first Road isolation pad（5）, second O-ring seals（6）, second isolation pad（7）, the 3rd O-ring seals（8）With the 3rd Isolation pad（9）, every tubing（2）The 3rd isolation pad outside offer mounting groove（10）, described mounting groove （10）Snap ring is inside installed（11）, described snap ring（11）Outer wrap be provided with back-up ring（12）, every tubing（2）On also cover Provided with flange form platen（13）, flange form clip（3）On screw hole and homonymy flange form platen（13）On screw hole site Corresponding and utilization connecting screw is docked.
- A kind of 2. more chuck pressure type assembling pipe joints according to claim 1, it is characterised in that：Every described tubing （2）It is upper to be located at outermost 3rd isolation pad（9）Outside back-up ring with it（12）Medial surface be in contact.
- A kind of 3. more chuck pressure type assembling pipe joints according to claim 1, it is characterised in that：First described of O Shape sealing ring（4）, second O-ring seals（6）With the 3rd O-ring seals（8）Specification it is identical；First of isolation pad （5）, second isolation pad（7）With the 3rd isolation pad（9）Specification it is identical.
- A kind of 4. more chuck pressure type assembling pipe joints according to claim 3, it is characterised in that：First described of O Shape sealing ring（4）, second O-ring seals（6）With the 3rd O-ring seals（8）Line footpath size be more than pipe fitting（1）With tubing （2）Bulk.
- A kind of 5. more chuck pressure type assembling pipe joints according to claim 1, it is characterised in that：Described pipe fitting（1） For the symmetrical structure of middle part necking, both ends enlarging, pipe fitting（1）Necking cavity and enlarging cavity between connected by 45 ° of cavity transition Connect, first of O-ring seals（4）It is in contact with 45 ° of cavitys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669788.9A CN107420663A (en) | 2017-08-08 | 2017-08-08 | A kind of more chuck pressure type assembling pipe joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710669788.9A CN107420663A (en) | 2017-08-08 | 2017-08-08 | A kind of more chuck pressure type assembling pipe joints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420663A true CN107420663A (en) | 2017-12-01 |
Family
ID=60437557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710669788.9A Pending CN107420663A (en) | 2017-08-08 | 2017-08-08 | A kind of more chuck pressure type assembling pipe joints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420663A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355198A (en) * | 2018-03-06 | 2018-08-03 | 程基才 | A kind of no draw point transfusion system |
| CN113042846A (en) * | 2021-04-16 | 2021-06-29 | 上海雷奎流体科技有限公司 | Variable length vacuum induction brazing furnace |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898884A (en) * | 1960-01-01 | 1962-06-14 | Stanton Ironworks Co Ltd | Improvements in and relating to means for interconnecting adjacent pipe lengths |
| CN1037385A (en) * | 1988-02-01 | 1989-11-22 | 洛塔·艾尔斯纳 | Pipe clamping joint |
| EP1164325A2 (en) * | 2000-06-13 | 2001-12-19 | Glynwed Pipe Systems Limited | Pipe coupling |
| US6481762B1 (en) * | 1999-02-02 | 2002-11-19 | Glynwed Pipe Systems Limited | Pipe coupling |
| CN2714930Y (en) * | 2003-06-02 | 2005-08-03 | 刘静丽 | Straight pin pipe connecting device |
| US20110049878A1 (en) * | 2008-05-01 | 2011-03-03 | Goode Sidney H | Profiled Gasket For Lined Piping |
| CN102252143A (en) * | 2011-07-01 | 2011-11-23 | 新兴铸管股份有限公司 | Interface structure of pipeline |
| CN204004889U (en) * | 2014-07-08 | 2014-12-10 | 银川艾尼工业科技开发有限公司 | A kind of pipe connecting device |
| CN105736864A (en) * | 2016-04-28 | 2016-07-06 | 银川艾尼工业科技开发有限公司 | Multi-clamp spinning type natural gas pipeline connection device |
| CN207005508U (en) * | 2017-08-08 | 2018-02-13 | 广西凯标节能科技有限公司 | A kind of more chuck pressure type assembling pipe joints |
-
2017
- 2017-08-08 CN CN201710669788.9A patent/CN107420663A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898884A (en) * | 1960-01-01 | 1962-06-14 | Stanton Ironworks Co Ltd | Improvements in and relating to means for interconnecting adjacent pipe lengths |
| CN1037385A (en) * | 1988-02-01 | 1989-11-22 | 洛塔·艾尔斯纳 | Pipe clamping joint |
| US6481762B1 (en) * | 1999-02-02 | 2002-11-19 | Glynwed Pipe Systems Limited | Pipe coupling |
| EP1164325A2 (en) * | 2000-06-13 | 2001-12-19 | Glynwed Pipe Systems Limited | Pipe coupling |
| CN2714930Y (en) * | 2003-06-02 | 2005-08-03 | 刘静丽 | Straight pin pipe connecting device |
| US20110049878A1 (en) * | 2008-05-01 | 2011-03-03 | Goode Sidney H | Profiled Gasket For Lined Piping |
| CN102252143A (en) * | 2011-07-01 | 2011-11-23 | 新兴铸管股份有限公司 | Interface structure of pipeline |
| CN204004889U (en) * | 2014-07-08 | 2014-12-10 | 银川艾尼工业科技开发有限公司 | A kind of pipe connecting device |
| CN105736864A (en) * | 2016-04-28 | 2016-07-06 | 银川艾尼工业科技开发有限公司 | Multi-clamp spinning type natural gas pipeline connection device |
| CN207005508U (en) * | 2017-08-08 | 2018-02-13 | 广西凯标节能科技有限公司 | A kind of more chuck pressure type assembling pipe joints |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355198A (en) * | 2018-03-06 | 2018-08-03 | 程基才 | A kind of no draw point transfusion system |
| CN108355198B (en) * | 2018-03-06 | 2024-02-13 | 程基才 | Steel needle-free infusion system |
| CN113042846A (en) * | 2021-04-16 | 2021-06-29 | 上海雷奎流体科技有限公司 | Variable length vacuum induction brazing furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |