CN108636946A - Gas brake control module cleaning switching cover board - Google Patents
Gas brake control module cleaning switching cover board Download PDFInfo
- Publication number
- CN108636946A CN108636946A CN201810347606.0A CN201810347606A CN108636946A CN 108636946 A CN108636946 A CN 108636946A CN 201810347606 A CN201810347606 A CN 201810347606A CN 108636946 A CN108636946 A CN 108636946A
- Authority
- CN
- China
- Prior art keywords
- control module
- brake control
- cover plate
- main cover
- gas brake
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims 2
- 230000008961 swelling Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 3
- 239000002516 radical scavenger Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 53
- 238000000034 method Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000008141 laxative Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001543 purgative effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to a kind of gas brake control modules to clean switching cover board, fixture including main cover plate and on main cover plate, main cover plate is cavity body structure, it is placed in sealing ring between main cover plate crowning and the surface of gas brake control module, main cover plate is detachably secured on gas brake control module by fixture, main cover plate inner cavity is seal chamber, installs total connector on the bottom plate of main cover plate, total connector is connect by connecting line with cleaning device.The switching cover board of the present invention is used in the cleaning of air braking system, the swelling nozzle of multiple calibers is replaced to be connect with cleaning device with total connector, it solves swelling nozzle on gas brake control module to be not easy to seal and be easily damaged, caused by leakage problem, and when greatly reducing scavenger, efficiency is improved, while reducing material cost.
Description
Technical field
The present invention relates to pipe-line system cleaning maintenance technical field more particularly to a kind of rail vehicle gas brake control modules
Cleaning switching cover board used.
Background technology
The braking system of current track vehicle mostly uses greatly Pneumatic brake systems.Pneumatic brake systems are by air compressor machine, Chu Feng
Cylinder, working line, solenoid valve and brake system composition.In system During Process of Long-term Operation, the moisture in compressed air and greasy dirt,
It is gradually adhered in pipe-line system, forms dirt, dirt can corrode pipeline;Greasy dirt and moisture may also lead to braking system simultaneously
Solenoid valve damage, then lead to brake failure, serious accident occur.
About ten years overhaul lifes of rail vehicle are primary.Generally in overhaul, Pneumatic brake systems can thoroughly be examined
It looks into and cleans, to ensure that Pneumatic brake systems internal height cleans, cleaning includes mainly cleaning pipeline and storage cylinder.
Applicant of the present invention discloses a kind of cleaning method of train pneumatic brake tube system in Chinese patent CN103521482B,
A kind of cleaning vehicle for implementing above-mentioned cleaning method is disclosed in Chinese patent CN206107260U, with hose by service pipe(Or
Store up cylinder)Both ends be connected with cleaning vehicle inlet and outlet, the cleaning system in working line and cleaning vehicle forms closed circuit,
Circulating pump makes the water after heating or cleaning solution keep recycling in the loop, after wash cycles after a period of time, then with pressure
Contracting air blows out residual solution, then plated film, nitrogen purging, inspection.Above method and device can effectively clean train gas
Brake pipeline system and storage cylinder, and it is made to keep prolonged cleaning.
The method that Chinese patent CN102401725B discloses another railway car brake line cleaning and sealing detection
And device, be provided with more air inlet pipelines on the cleaning device, more air inlet pipelines respectively with the arrival end of working line one
One correspondence is connected, and more outlet pipes correspond with the outlet end of working line be connected to respectively, form complete air circulation
Pipeline produces pressure-air by air compressor machine, and high-pressure air source is constantly blown into high pressure gas into working line, and air stream is in pipeline
Agitation after reaching certain pressure, is vented suddenly, and the pressure wave generated using pressure change in inflation and exhaust process is to instrumentation tubes
Road carries out flush clean, achievees the purpose that cleaning pipeline inner wall.
Which kind of, in fact, no matter using cleaning method, it is required for connecting working line and cleaning device.Practical behaviour
In work, gas control for brake pipeline constitutes gas brake control module with solenoid valve, in purgative gas brake control module, removes it
After upper capping, there is the expanded joint nozzle of multiple and different diameters on gas brake control module(For other pipelines of expanded joint).By above-mentioned special
The expanded joint nozzle of these different-diameters need to one by one be connected, at this by connection method disclosed in profit with the inlet and outlet of cleaning device
In the practical operation of a process, there are some practical problems.
First, envelope is formed according to the technological requirement of first two cleaning method, cleaning device and working line to be cleaned
Closed loop circuit, the piping connection of expanded joint nozzle and cleaning device, fragile expanded joint nozzle and generate leakage.If it happens it lets out
Leakage, cleaning solution can cause environmental pollution, lead to safety accident.
Secondly, the pipeline connected on gas brake control module is excessive, intricate, and operating space is narrow, in small space
The interior pipe to more different tube diameters is attached operation, very inconvenient.Also more materials and working hour can be wasted.Especially track
There is more piece compartment on vehicle, there are many brake pipeline systems to need to clean, the working hour that entire cleaning is spent can be at double
Increase, efficiency drastically reduces.
Invention content
For the above-mentioned prior art the shortcomings that or deficiency, the present invention provide a kind of gas brake control module cleaning adaptor cover
Plate is sealingly fastened on gas brake control module, as long as the total connector for one or several negligible amounts transferred on cover board is led to
It crosses connecting line with cleaning device to be connected, is convenient for the dismounting of gas brake control module and cleaning device.
Technical scheme is as follows:
Gas brake control module cleaning switching cover board, including main cover plate, the one or more fixtures being mounted on main cover plate, fixture
Main cover plate is detachably secured on gas brake control module;Main cover plate is cavity body structure, and raised side spiral-lock is braked in gas
In control module, it is placed in sealing ring between main cover plate crowning and the surface of gas brake control module, it is close to make main cover plate inner cavity
Seal chamber;One or more total connectors are installed, total connector is external screw thread hollow connector, to the bottom plate of main cover plate on the bottom plate of main cover plate
Outside protrusion, total connector are connect by connecting line with cleaning device.
It is provided with location hole on the bottom plate of main cover plate, is coordinated with the positioning device of gas brake control module.
Fixture includes fixture lever arm, and fixture lever arm one end is hinged with fixture mounting blocks, and installs fixture is tight on the other end
Gu device, fixture mounting blocks are fixed on main cover plate, and fixture lever arm is symmetrically distributed in main cover plate both sides up and down.
Fixture lever arm section is U-shaped structure.
One end of installs fixture fastener is hollow cylinder on fixture lever arm, has internal thread in cylinder;Fixture
Fastener is fastening bolt, and one end of fastening bolt is circular flange bulge-structure, and flange projection end face is in clamp state
Under withstand on the surface of gas brake control module, the other end of fastening bolt is to screw structure, and fastening bolt middle section is outer spiral shell
Line;
Fastening bolt is screwed into the hollow cylinder body of fixture lever arm, can be moved back and forth along cylinder axis.
It is and existing in conclusion clean braking system using the gas brake control module of present invention cleaning switching cover board
Technology is compared, and advantage is:
1, total connector of the invention is external screw thread hollow connector, instead of on gas brake control module multiple swelling nozzles with it is clear
Cleaning device be connected, solve swelling nozzle on gas brake control module be not easy seal and be easily damaged, caused by leakage problem.
2, it is provided with sealing ring on switching cover board of the invention, while fixture generates larger clamping force, makes in main cover plate
Chamber forms seal chamber, ensure that the leakproofness in entire clean cycle circuit, preferably meets the technological requirement of closed circulation cleaning.
3, it in air braking system cleaning, using the gas brake control module cleaning switching cover board of the present invention, only needs
The total connector transferred on cover board is connect with cleaning device, instead of more specification expansion connection pipes on gas brake control module
The method that mouth is connect with cleaning device one by one, keeps the Joining Technology of gas brake control module and cleaning device more simple and fast, saves
The operation for having removed to connect more pipes in small space, for cleaning several gas brake control modules of entire train, even more
A large amount of artificial and times are saved, efficiency is improved and reduce cost.
Description of the drawings
Fig. 1:The front view of gas brake control module cleaning switching cover board of the present invention;
Fig. 2:The right view of gas brake control module cleaning switching cover board of the present invention;
Fig. 3:Stereogram under gas brake control module cleaning switching cover board working condition of the present invention.
Specific implementation mode
Below with reference to attached drawing and specific implementation mode, to the technique effect of the design of the present invention, structure and generation make into
One step explanation.
As shown in Figure 1 and Figure 2, the gas brake control module cleaning switching cover board of the present embodiment, including main cover plate 1, are mounted on
Main cover plate 1 is detachably secured on gas brake control module by four fixtures 2 on main cover plate 1, fixture 2, main cover plate crowning
Sealing ring 3 is placed between 13 and the surface of gas brake control module.
The main cover plate 1 of the present embodiment is cuboid cavity body structure, and the interior accommodating space of cavity is main cover board inner cavity 14, main
Cover board inner cavity 14 is seal chamber in the operating condition, is full of cleaning solution.A total connector is arranged in the center of the bottom plate of cavity
11, to the plate outer side protrusion of main cover plate 1, total connector 11 is external screw thread hollow connector, for connecting cleaning device.On bottom plate also
It opens there are two location hole 12, coordinates with the positioning device of gas brake control module, realize that gas brake control module cleans adaptor cover
The positioning of plate.
Four fixtures 2 of the present embodiment, two of which are placed in the top of main cover plate 1, other two is placed below, top
(Or lower section)Two fixtures 2 be located at the left and right sides of main cover plate 1, the asymmetrical arrangement of fixture 2 can make clamping force more
It is applied on the surface of gas brake control module uniformly across main cover plate crowning 13, enhances the sealing of main cover plate inner cavity 14
Effect.
All there are one fixture lever arms 21 for every group of fixture 2 of the present embodiment, and the section of fixture lever arm 21 is U-shaped structure, U
Shape structure one end is hinged by hinge and fixture mounting blocks 23, and fixture mounting blocks 23 are welded or are screwed in main cover plate 1
Upper outer lower face surface on.The other end of U-shaped structure welds a hollow cylinder, has internal thread, cylinder axis in cylinder
It is orthogonal with rod length direction.The clamp device 22 of the present embodiment is fastening bolt, and one end of fastening bolt is circle
Flange projection structure, the other end are to screw structure 222, can conveniently tighten fastening bolt, middle section is external screw thread.Fasten spiral shell
Bolt is mounted in the hollow cylinder body of fixture lever arm 21, by screwing fastening bolt, realizes the clamping and release of fixture 2.Tightly
The area of the flange projection end face 221 of fixing bolt is bigger, and forced area is bigger, and the clamping effect of fixture 2 is better.
The fixture lever arm 21 of U-shaped structure is special according to the structure of gas brake control module and the structure of braking system
It does not design, other beams and pipeline can be avoided, gas brake module rear surface is stretched into small space, realize to gas control for brake
The sealing of module cleaning switching cover board is fixed.
Using fastening bolt as clamp device 22, it is capable of providing larger clamping force, ensures sealing effect, and not
The thickness of pipe gas brake control module is how many, and fastening bolt is all to be screwed to flange projection end face 221 to withstand on gas control for brake mould
Until block surface, various sizes of gas brake control module can be suitably used for.
When being cleaned into promoting the circulation of qi brake control module, first, by the side spiral-lock of 1 protrusion of main cover plate in gas control for brake mould
On block, i.e., main cover plate crowning 13 is directed at the forward surface of gas brake control module, encrypts seal 3 between the two, adjusts gas system
The position of dynamic control module cleaning switching cover board, makes the location hole 12 on main cover plate 1 and positioning device on gas brake control module
After cooperation, screwed in place nut.
Then, as shown in figure 3,21 around hinge of fixture lever arm is rotated by 90 °, fastening bolt axis is horizontal,
The flange projection end face 221 of fastening bolt is directed at the rear surface of gas brake control module, tightens fastening bolt one by one, makes main cover
Plate inner cavity 14 becomes seal chamber, ensures that cleaning solution will not be revealed.Be connected with total connector 11 with connecting line one end, the other end with
Cleaning device connects.In this way, cleaning device, connecting line, gas brake control module the cleaning switching gentle control for brake mould of cover board
Block forms the cycle closed circuit of cleaning with pressure.
Finally, professional solution is filled to above-mentioned cycle closed circuit by cleaning device, carries out 4-6kg leak detections with pressure, and
According to
The technological requirement of cleaning method completes gas brake control module washing and cleaning operation.
The present embodiment is provided with a total connector 11, and operation is the most simple and convenient, best embodies present invention switching cover board
Advantage.In other embodiments, it is multiple that the quantity of total connector 11 can increase according to actual needs.
The fixture 2 of other structures, if main cover plate 1 can be fixed on gas brake control module, and main cover plate inner cavity 14
Sealing performance meet the requirement of leak test with pressure, may be used.
Using the brake control module cleaning switching cover board of the present invention, in cleaning process, it is only necessary to will with connecting pipe
Total connector 11 is connect with cleaning device, and the heating cleaning solution in cleaning device can enter main cover plate inner cavity by total connector 11
14, subsequently into gas brake control module, without all swelling nozzles on gas brake module are filled with cleaning one by one
Set connection.On the one hand, solve swelling nozzle on gas brake control module to be not easy to seal and be easily damaged, caused by reveal and ask
Topic.And packing is encrypted between main cover plate crowning 13 and gas brake control module, it is used in combination fixture 2 to lock switching cover board,
So that main cover plate inner cavity 14 is become seal chamber, make the better tightness in entire clean cycle circuit, meets the work of closed circulation cleaning
Skill requirement.On the other hand, greatly reduce the connection working hour of gas brake control module and cleaning device, at the same reduce material at
This, reaches low cost, efficient purpose.
Embodiment of above is merely to illustrate the present invention rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, various combinations are carried out to technical scheme of the present invention,
Modification or substitute equivalents, without departure from the spirit and scope of technical solution of the present invention, the right that should all cover in the present invention is wanted
It asks in range.
Claims (6)
1. a kind of gas brake control module cleaning switching cover board, which is characterized in that including main cover plate(1), it is mounted on main cover plate
One or more fixtures(2), the fixture(2)Main cover plate is detachably secured on gas brake control module;
The main cover plate(1)For cavity body structure, raised side spiral-lock is on gas brake control module, main cover plate crowning(13)
It is placed in sealing ring between the surface of gas brake control module(3), make main cover plate inner cavity(14)For seal chamber;
The main cover plate(1)Bottom plate on the one or more total connectors of installation(11), total connector(11)It is hollow for external screw thread
Connector, to the main cover plate(1)Plate outer side protrusion, total connector(11)It is connect with cleaning device by connecting line.
2. gas brake control module cleaning switching cover board according to claim 1, which is characterized in that total connector(11)
Quantity is one.
3. gas brake control module cleaning switching cover board according to claim 1, which is characterized in that the main cover plate(1)
Bottom plate on be provided with location hole(12), coordinate with the positioning device of gas brake control module.
4. gas brake control module cleaning switching cover board according to claim 1, which is characterized in that the fixture(2)Packet
Include fixture lever arm(21), the fixture lever arm(21)One end and fixture mounting blocks(23)It is hinged, installs fixture on the other end
Fastener(22), the fixture mounting blocks(23)It is fixed on the main cover plate(1)On, the fixture lever arm(21)It is symmetrical
In the main cover plate(1)Upper and lower both sides.
5. gas brake control module cleaning switching cover board according to claim 4, which is characterized in that the fixture lever arm
(21)Section is U-shaped structure.
6. gas brake control module cleaning switching cover board according to claim 4, which is characterized in that the fixture lever arm
(21)The upper installation clamp device(22)One end be hollow cylinder, have internal thread in cylinder;
The clamp device(22)One end for fastening bolt, fastening bolt is circular flange bulge-structure, flange projection end
Face(221)In the fixture(2)The surface of gas brake control module is withstood under clamped condition, the other end of fastening bolt is to screw
Structure(222), fastening bolt middle section is external screw thread;
Fastening bolt is screwed into the fixture lever arm(21)Hollow cylinder body in, can be moved back and forth along cylinder axis.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810347606.0A CN108636946A (en) | 2018-04-18 | 2018-04-18 | Gas brake control module cleaning switching cover board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810347606.0A CN108636946A (en) | 2018-04-18 | 2018-04-18 | Gas brake control module cleaning switching cover board |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108636946A true CN108636946A (en) | 2018-10-12 |
Family
ID=63746532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810347606.0A Pending CN108636946A (en) | 2018-04-18 | 2018-04-18 | Gas brake control module cleaning switching cover board |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108636946A (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101663487A (en) * | 2007-04-20 | 2010-03-03 | 阿尔弗雷德·凯驰两合公司 | Reciprocating pump for a high-pressure cleaning device |
CN102979959A (en) * | 2012-11-28 | 2013-03-20 | 芜湖市顺昌汽车配件有限公司 | Pipe clamping component |
CN203275028U (en) * | 2013-04-23 | 2013-11-06 | 河南航天精工制造有限公司 | Airtightness test apparatus |
CN104550075A (en) * | 2014-12-26 | 2015-04-29 | 南车贵阳车辆有限公司 | Clamp for cleaning cavity of air brake control valve middle body |
CN206009359U (en) * | 2016-08-29 | 2017-03-15 | 韩先国 | A kind of floor heating pipeline strength cleaning device |
CN106955875A (en) * | 2017-05-15 | 2017-07-18 | 夏慧 | A kind of steel pipe pipe fitting inner wall decontamination method |
CN206838679U (en) * | 2017-06-08 | 2018-01-05 | 中国水稻研究所 | A kind of pipette washer |
CN208303410U (en) * | 2018-04-18 | 2019-01-01 | 上海泰如一环境科技工程有限公司 | Gas brake control module cleaning switching cover board |
-
2018
- 2018-04-18 CN CN201810347606.0A patent/CN108636946A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101663487A (en) * | 2007-04-20 | 2010-03-03 | 阿尔弗雷德·凯驰两合公司 | Reciprocating pump for a high-pressure cleaning device |
CN102979959A (en) * | 2012-11-28 | 2013-03-20 | 芜湖市顺昌汽车配件有限公司 | Pipe clamping component |
CN203275028U (en) * | 2013-04-23 | 2013-11-06 | 河南航天精工制造有限公司 | Airtightness test apparatus |
CN104550075A (en) * | 2014-12-26 | 2015-04-29 | 南车贵阳车辆有限公司 | Clamp for cleaning cavity of air brake control valve middle body |
CN206009359U (en) * | 2016-08-29 | 2017-03-15 | 韩先国 | A kind of floor heating pipeline strength cleaning device |
CN106955875A (en) * | 2017-05-15 | 2017-07-18 | 夏慧 | A kind of steel pipe pipe fitting inner wall decontamination method |
CN206838679U (en) * | 2017-06-08 | 2018-01-05 | 中国水稻研究所 | A kind of pipette washer |
CN208303410U (en) * | 2018-04-18 | 2019-01-01 | 上海泰如一环境科技工程有限公司 | Gas brake control module cleaning switching cover board |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5479521B2 (en) | Tire repair equipment including tire cement | |
CN208303410U (en) | Gas brake control module cleaning switching cover board | |
CN108636946A (en) | Gas brake control module cleaning switching cover board | |
RU2753714C1 (en) | Flushing system of dust collector with hose damage protection and dust collector | |
CN106270925A (en) | Sleeper beam welding Tracheal reconstruction technique | |
CN101737586B (en) | Device and method for repairing water pipe line | |
CN209245569U (en) | One kind leaking hydrogen pressure sealing fixture for generator flange | |
CN200982414Y (en) | Valve for air-conditioning evaporator | |
CN110159847A (en) | A kind of pipe union and clamp device convenient for fastening | |
CN101890416B (en) | Cleaner for inner wall of steel pipe | |
CN104889091A (en) | Cleaning method of valve body cleaner and device thereof | |
CN212158932U (en) | Positioning fixture for manifold air tightness detection | |
CN207132022U (en) | A kind of compensator upstream end pipeline provided with pressure plugging device | |
CN104330229A (en) | Welding seam airtightness detection device | |
CN209538334U (en) | A kind of sewage conduct connector | |
CN221037905U (en) | Main bag dust collector divides gas tank pressure testing device | |
CN112413274A (en) | Hafu joint and pipeline first-aid repair method | |
CN221414355U (en) | Oil gas pipeline cleaning device | |
CN214345515U (en) | Gas purification device for energy conservation and emission reduction | |
CN220102488U (en) | Pipeline clamp for pressure plugging overhaul of boiler | |
CN108302205A (en) | A kind of air heave type sealing | |
CN219899479U (en) | Structure capable of effectively cleaning residual liquid in tank car pipeline system | |
CN220678812U (en) | Dust collector and dust pelletizing system | |
CN215811438U (en) | Sealing detection device for production of automobile exhaust pipe | |
CN209495070U (en) | Free Float Type Steam Trap Pressurized plugging clamp |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181012 |