CN110220065A - One kind covering the modeling multi-sealed connection structure of metallic conduit - Google Patents
One kind covering the modeling multi-sealed connection structure of metallic conduit Download PDFInfo
- Publication number
- CN110220065A CN110220065A CN201910246079.9A CN201910246079A CN110220065A CN 110220065 A CN110220065 A CN 110220065A CN 201910246079 A CN201910246079 A CN 201910246079A CN 110220065 A CN110220065 A CN 110220065A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- pipe
- modeling
- metal
- connecting 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims abstract description 83
- 229910052751 metal Inorganic materials 0.000 claims abstract description 83
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 13
- 238000003032 molecular docking Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 description 15
- 239000004033 plastic Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000007812 deficiency Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002528 anti-freeze Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012943 hotmelt Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/02—Welded joints; Adhesive joints
- F16L47/03—Welded joints with an electrical resistance incorporated in the joint
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
- F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The invention discloses one kind to cover the modeling multi-sealed connection structure of metallic conduit, including by inner layer metal pipe and the first pipe fitting and the second pipe fitting that cover modeling outer lining and form that are coated on outside inner layer metal pipe, first pipe fitting and the second pipe fitting are attached through metal connecting tube, one end of the metal connecting tube is extend into the first tube intracavity, the other end of shown metal connecting tube is extend into the second tube intracavity, the both ends side wall of the metal connecting tube is equipped with annular groove, the sealing ring for sealing is embedded in the annular groove, the outside of first pipe fitting and the second pipe fitting junction is equipped with electric melting pipe fittings.The present invention realizes the multi-sealed of supply line connection structure, has sealing effect good, is not in drainage.
Description
Technical field
The present invention relates to water supply pipe fitting technical field, specially one kind covers the modeling multi-sealed connection structure of metallic conduit.
Background technique
It is well known that metal feedwater pipeline is more healthy compared to plastic water supply pipe road, however, metal water-supply pipe there is also
Easy clean fine jade, outer wall corrosion, big joint sealing difficulty the deficiencies of.In order to solve the deficiency of metal water-supply pipe, the art people
Member, which has invented, covers modeling metal tube.
China Patent No. 200710134690.X, patent name: moulding metal feedwater pipe connecting structure again and moulds metal again
Connecting piece of water feed pipe, disclose one kind cover modeling metal feedwater pipe connecting structure, the structure include cover modeling metal feedwater pipeline and
Modeling metal feedwater pipe connections are covered, covering has on modeling metal feedwater pipe connections and can mould what metal feedwater pipeline was connected with covering
Port offers slot near ports connector plastic layer, and the slot is inserted into the one end for covering modeling metal feedwater pipeline, connects
Part plastic layer is connected with pipeline plastic layer, and village is nested in tube metal inside village in connector metal, connector metal
The sealing ring made of water-swellable material is provided in interior village and tube metal between village, between the plastics and plastics of spigot
Also by hot-melt adhesive paste.
The more traditional plastic water supply pipe of the patented technology has an apparent healthy advantage, in entire water supply process, water not with
Plastic contacts, structure are theoretically more scientific.But existing deficiency is: since the gap of slot is too small, causing adopting
With when hot melting process can only by the heating bistrique of hot-melting tool it is thinning can just be put into this insert insert in, hot melt bistrique it is thinning after will lead
It causes to be deformed when bistrique heating, so that generating rosin joint when hot melt, causes leakproofness unreliable.In addition, the carrying energy of slot
Power determines the non-deformability of integrated water-feeding pipeline, often due to slot receiving deformability is weaker, and causes junction disconnected
It splits, and then leak.The extensive practicability for entirely covering modeling metal feedwater pipe connecting structure is restricted, and can not promote on a large scale.
China Patent No. 201220601069.6, patent name: covering modeling metal feedwater pipe connections and covers modeling metal feedwater
The connection structure of pipe also discloses a kind of connection structure, which includes covering modeling metal water-supply pipe, covering modeling metal water-supply pipe connection
Part, covering modeling metal water-supply pipe includes tube metal liner, pipeline plastic layer；Covering modeling metal feedwater pipe connections includes connector gold
Belong to liner, connector plastic layer, connector metal inner lining have can with cover the connector metal that is connected of modeling metal water-supply pipe
Liner port offers to allow on the connector plastic layer at connector metal inner lining port and covers modeling metal water-supply pipe insertion
Connector bellmouth, when the two is connected, cover modeling metal water-supply pipe be inserted into connector bellmouth, pipeline plastic layer outer surface
With connector plastic layer inner surface phase thermal welding.
The patent and above-mentioned patent 200710134690.X have the advantages that same, while there is also same deficiencies, more
For the serious is no sealing structure, drainage is even more serious.For this purpose, we provide one kind cover modeling metallic conduit it is multi-sealed
Connection structure.
Summary of the invention
To solve defect of the existing technology, the present invention provides one kind and covers the modeling multi-sealed connection structure of metallic conduit.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
One kind of the present invention covers the modeling multi-sealed connection structure of metallic conduit, including by inner layer metal pipe and is coated on internal layer gold
Belong to the first pipe fitting and the second pipe fitting for covering modeling outer lining composition outside pipe, it is characterised in that: first pipe fitting and the second pipe fitting warp
Metal connecting tube is attached, and one end of the metal connecting tube is extend into the first tube intracavity, shown metal connecting tube
The other end is extend into the second tube intracavity, and the both ends side wall of the metal connecting tube is equipped with annular groove, and the annular is recessed
It is embedded with the sealing ring for sealing in slot, the outside of first pipe fitting and the second pipe fitting junction is equipped with electric melting pipe fittings.
As a preferred technical solution of the present invention, the outer diameter of the metal connecting tube is less than the internal layer in the first pipe fitting
The internal diameter of metal tube；Internal diameter of the outer diameter of the metal connecting tube less than the inner layer metal pipe in the second pipe fitting.
As a preferred technical solution of the present invention, covering in first pipe fitting and the second pipe fitting is all provided in modeling outer lining
There is electric fuse.
The electricity covered in modeling outer lining as a preferred technical solution of the present invention, in first pipe fitting and the second pipe fitting
Fuse is set at nozzle.
As a preferred technical solution of the present invention, it is equipped at the nozzle of second pipe fitting and agrees with electric melting pipe fittings
Docking groove.
As a preferred technical solution of the present invention, the nozzle of first pipe fitting is docked with the nozzle of the second pipe fitting.
As a preferred technical solution of the present invention, the metal connecting tube is stainless steel material.
The beneficial effects of the present invention are: 1, this kind covers the modeling multi-sealed connection structure of metallic conduit, supply line is realized
Connection structure it is multi-sealed, the end of metal connecting tube is equipped with annular groove, is equipped with sealing ring in annular groove, passes through sealing
Circle metal connecting tube and the inner layer metal pipe in the first pipe fitting are sealed, similarly metal connecting tube with it is interior in the second pipe fitting
Layer metal tube is also sealed, and forms first of sealing；And covering on the first pipe fitting covers modeling on modeling outer lining and the second pipe fitting
Outer lining is heated, and second sealing is formed；Electric smelting is equipped with by the outside in the junction of the first pipe fitting and the second pipe fitting again
Pipe fitting is sealed at the docking to the first pipe fitting and the second pipe fitting using electric melting pipe fittings, forms three seals, sealing effect
Fruit is good, without drainage.
2, this kind covers modeling metallic conduit connection structure, and water supply whole process contacts metal pipe internal wall, safe and healthy；Entirely give
Water system outer layer plastic does not condense, antifreeze damage, and by being equipped with electric melting pipe fittings at the docking of the first pipe fitting and the second pipe fitting,
Connection structure can bear to hand over big pressure and the external world because of rock deformation pressure caused by settling.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram for covering the modeling multi-sealed connection structure of metallic conduit of the present invention；
Fig. 2 is a kind of partial structural diagram for covering the modeling multi-sealed connection structure of metallic conduit of the present invention.
In figure: 1, the first pipe fitting；2, the second pipe fitting；3, inner layer metal pipe；4, modeling outer lining is covered；5, metal connecting tube；6, ring
Connected in star；7, sealing ring；8, electric melting pipe fittings；9, electric fuse.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment: as depicted in figs. 1 and 2, one kind of the present invention covers the modeling multi-sealed connection structure of metallic conduit, including by interior
Layer metal tube 3 and the first pipe fitting 1 and the second pipe fitting 2 that cover modeling outer lining 4 and form being coated on outside inner layer metal pipe 3, feature exists
It is attached in: first pipe fitting 1 and the second pipe fitting 2 through metal connecting tube 5, one end of the metal connecting tube 5 is extend into
In first pipe fitting, 1 inner cavity, the other end of shown metal connecting tube 5 is extend into 2 inner cavity of the second pipe fitting, the metal connecting tube 5
Both ends side wall be equipped with annular groove 6, the sealing ring 7 for sealing, first pipe fitting are embedded in the annular groove 6
1 and 2 junction of the second pipe fitting outside be equipped with electric melting pipe fittings 8.
Wherein, internal diameter of the outer diameter of the metal connecting tube 5 less than the inner layer metal pipe 3 in the first pipe fitting 1；The metal
The outer diameter of connecting tube 5 extend into the first pipe fitting less than the internal diameter of the inner layer metal pipe 3 in the second pipe fitting 2 convenient for metal connecting tube 5
1 and second in pipe fitting 2.
Wherein, covering in modeling outer lining 4 in first pipe fitting 1 and the second pipe fitting 2 is equipped with electric fuse 9, by additional low
Current voltage, to the first pipe fitting 1 and the second pipe fitting 2 outside the modeling outer lining 4 that covers heat, to the first pipe fitting 1 and the second pipe fitting 2
Interface is docked and is sealed.
Wherein, the electric fuse 9 covered in modeling outer lining 4 in first pipe fitting 1 and the second pipe fitting 2 is set at nozzle, just
It is docked and is sealed in the interface to the first pipe fitting 1 and the first pipe fitting 2.
Wherein, the docking groove agreed with electric melting pipe fittings 8 is equipped at the nozzle of second pipe fitting 2, first is that increasing and second
The contact area of pipe fitting 2 improves sealing effect；Second is that the effect for limit of having got up.
Wherein, the nozzle of first pipe fitting 1 is docked with the nozzle of the second pipe fitting 2.
Wherein, the metal connecting tube 5 is stainless steel material, will not be polluted to water quality, and intensity is big.
The present invention realizes the multi-sealed of supply line connection structure, and wherein the end of metal connecting tube 5 is equipped with annular
Groove 6, annular groove 6 is interior to be equipped with sealing ring 7, by sealing ring 7 to the inner layer metal in metal connecting tube 5 and the first pipe fitting 1
Pipe 3 is sealed, and similarly metal connecting tube 5 is also sealed with the inner layer metal pipe 3 in the second pipe fitting 2, and first of formation close
Envelope；And the modeling outer lining 3 that covers covered on modeling outer lining 3 and the second pipe fitting 2 on the first pipe fitting 1 is heated, and second sealing is formed；
Electric melting pipe fittings 8 are equipped with by the outside in the junction of the first pipe fitting 1 and the second pipe fitting 2 again, using electric melting pipe fittings 8 come to first
It is sealed at the docking of pipe fitting 1 and the second pipe fitting 2, forms three seals, sealing effect is good, existing without leak
As this kind covers modeling metallic conduit connection structure, and water supply whole process contacts metal pipe internal wall, safe and healthy；Entire water supply system
Outer layer plastic does not condense, antifreeze damage, and by being equipped with electric melting pipe fittings 9 at the docking of the first pipe fitting 1 and the second pipe fitting 2, even
Binding structure can bear to hand over big pressure and the external world because of rock deformation pressure caused by settling.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. one kind covers the modeling multi-sealed connection structure of metallic conduit, including by inner layer metal pipe (3) and is coated on inner layer metal pipe
(3) outside cover modeling outer lining (4) composition the first pipe fitting (1) and the second pipe fitting (2), it is characterised in that: first pipe fitting (1) and
Second pipe fitting (2) is attached through metal connecting tube (5), and one end of the metal connecting tube (5) is extend into the first pipe fitting (1)
In chamber, the other end of shown metal connecting tube (5) is extend into the second pipe fitting (2) inner cavity, the both ends of the metal connecting tube (5)
Side wall is equipped with annular groove (6), and the sealing ring (7) for sealing, first pipe fitting are embedded in the annular groove (6)
(1) and the outside of the second pipe fitting (2) junction is equipped with electric melting pipe fittings (8).
2. one kind according to claim 1 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that the metal
Internal diameter of the outer diameter of connecting tube (5) less than the inner layer metal pipe (3) in the first pipe fitting (1)；The outer diameter of the metal connecting tube (5)
Less than the internal diameter of the inner layer metal pipe (3) in the second pipe fitting (2).
3. one kind according to claim 1 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that described first
Covering in modeling outer lining (4) in pipe fitting (1) and the second pipe fitting (2) is equipped with electric fuse (9).
4. one kind according to claim 3 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that described first
The electric fuse (9) covered in modeling outer lining (4) in pipe fitting (1) and the second pipe fitting (2) is set at nozzle.
5. one kind according to claim 1 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that described second
The docking groove agreed with electric melting pipe fittings (8) is equipped at the nozzle of pipe fitting (2).
6. one kind according to claim 1 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that described first
The nozzle of pipe fitting (1) is docked with the nozzle of the second pipe fitting (2).
7. one kind according to claim 1 covers the modeling multi-sealed connection structure of metallic conduit, which is characterized in that the metal
Connecting tube (5) is stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246079.9A CN110220065A (en) | 2019-03-29 | 2019-03-29 | One kind covering the modeling multi-sealed connection structure of metallic conduit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246079.9A CN110220065A (en) | 2019-03-29 | 2019-03-29 | One kind covering the modeling multi-sealed connection structure of metallic conduit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110220065A true CN110220065A (en) | 2019-09-10 |
Family
ID=67822408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910246079.9A Pending CN110220065A (en) | 2019-03-29 | 2019-03-29 | One kind covering the modeling multi-sealed connection structure of metallic conduit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110220065A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158428A (en) * | 2007-10-17 | 2008-04-09 | 苏州市阳光川上管道有限公司 | Plastic coated metallic water supply pipe joint structure and plastic coated metallic water supply pipe connecting component |
| WO2010041016A1 (en) * | 2008-10-11 | 2010-04-15 | Advanced Specialist Moulders Ltd | Electrofusion fitting |
| CN202927347U (en) * | 2012-11-15 | 2013-05-08 | 苏州市阳光川上管道有限公司 | Plastic-covered stainless steel water supply pipe connecting piece and connecting structure for plastic-covered stainless steel water supply pipe |
| CN203395471U (en) * | 2013-06-29 | 2014-01-15 | 广东联塑科技实业有限公司 | Electro fusion pipe fitting with enhanced sealability |
| CN103899853A (en) * | 2014-03-25 | 2014-07-02 | 浙江好房子铜业有限公司 | Composite copper-plastic water supply pipe connecting structure and composite copper-plastic water supply pipe connector |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN106090476A (en) * | 2016-08-22 | 2016-11-09 | 闫莉 | Protecting against shock pipe joint structure |
| CN210050435U (en) * | 2019-03-29 | 2020-02-11 | 上海瑞河企业集团有限公司 | Cover and mould multiple sealing connection structure of metal pipeline |
-
2019
- 2019-03-29 CN CN201910246079.9A patent/CN110220065A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158428A (en) * | 2007-10-17 | 2008-04-09 | 苏州市阳光川上管道有限公司 | Plastic coated metallic water supply pipe joint structure and plastic coated metallic water supply pipe connecting component |
| WO2010041016A1 (en) * | 2008-10-11 | 2010-04-15 | Advanced Specialist Moulders Ltd | Electrofusion fitting |
| CN202927347U (en) * | 2012-11-15 | 2013-05-08 | 苏州市阳光川上管道有限公司 | Plastic-covered stainless steel water supply pipe connecting piece and connecting structure for plastic-covered stainless steel water supply pipe |
| CN203395471U (en) * | 2013-06-29 | 2014-01-15 | 广东联塑科技实业有限公司 | Electro fusion pipe fitting with enhanced sealability |
| CN103899853A (en) * | 2014-03-25 | 2014-07-02 | 浙江好房子铜业有限公司 | Composite copper-plastic water supply pipe connecting structure and composite copper-plastic water supply pipe connector |
| CN105402542A (en) * | 2015-12-18 | 2016-03-16 | 浙江伟星新型建材股份有限公司 | Connecting structure and connecting method for reinforced composite pipes |
| CN106090476A (en) * | 2016-08-22 | 2016-11-09 | 闫莉 | Protecting against shock pipe joint structure |
| CN210050435U (en) * | 2019-03-29 | 2020-02-11 | 上海瑞河企业集团有限公司 | Cover and mould multiple sealing connection structure of metal pipeline |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190910 |