CN106763113A - Sucking disc and vacuum-pumping lifting appliance with same - Google Patents
Sucking disc and vacuum-pumping lifting appliance with same Download PDFInfo
- Publication number
- CN106763113A CN106763113A CN201710130708.2A CN201710130708A CN106763113A CN 106763113 A CN106763113 A CN 106763113A CN 201710130708 A CN201710130708 A CN 201710130708A CN 106763113 A CN106763113 A CN 106763113A
- Authority
- CN
- China
- Prior art keywords
- sucker
- platen
- paster
- groove
- body surface
- 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.)
- Withdrawn
Links
- 238000005086 pumping Methods 0.000 title claims description 10
- 238000000605 extraction Methods 0.000 claims description 6
- 229920000297 Rayon Polymers 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 210000003746 feather Anatomy 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005338 frosted glass Substances 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B47/00—Suction cups for attaching purposes; Equivalent means using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
- B66C1/0237—Multiple lifting units; More than one suction area
- B66C1/0243—Separate cups
Abstract
A sucking disc, the centre of sucking disc has cylindrical connector protruding outwards, there is a circle of sucking disc deformation groove sunken inwards in the sucking disc on the surface of sucking disc with the joint pin as the mean axis, the sticking sheet outside the release paper makes the sucking disc adhere to the surface of the object in advance; the adjusting bolt is rotated to pull the center of the sucker away from the surface of an object, so that a vacuum space or a negative pressure space is formed between the sucker and the object, when the vacuum space or the negative pressure space is larger and larger, inward pulling force can be generated on the inner wall of the sucker, the pulling force is transmitted to the adjusting bolt through the connecting column, and then transmitted to the pressure plate through the adjusting bolt, so that the peripheral edge of the sucker and the periphery of the paster are pressed to the surface of the object by the pressure plate more tightly.
Description
Technical field
The present invention relates to a kind of vacuum cup that can be adsorbed in crude body surface, belong to the skill in vacuum cup field
Art.
Background technology
Vacuum cup can be adsorbed in the smooth bright and clean body surface such as glass, ceramic tile, therefore often is made for hanging
Hang or capture the instrument of object.
Vacuum cup typically uses silicon rubber or PVC material or polyurethane or nitrile rubber or the polymer containing vinyl etc.
There is the certain rigidity of tool certain flexible plastic material to be made again.The structure of most of vacuum cup is hollow-cone body,
Sucker wall towards adsorbent surface is the taper of middle part depression upwards, and sucker is against after adsorbent surface to suction when using
Addendum surface pressing sucker middle part, is extruded the air in the conical cavity of sucker, then decontrols sucker, and sucker is in self-resetting
During produce negative pressure in the conical cavity of sucker, sucker is adsorbed on the surface of object, or sucker is against into suction
Sucker middle part is pulled behind addendum surface again, makes to be formed in sucker chamber negative pressure so as to adsorb on the surface of adsorbate.These are inhaled
Disk is made by the material with certain deformability, is primarily adapted for use in smooth bright and clean body surface.
But, many body surfaces are smooth but not bright and clean enough, such as existing with objects such as textured ceramic tile, frosted glass
Sucker be difficult inhale on the crude object in these surfaces.Even if sucting reluctantly, will soon be because of gas leakage from object table emaciated face
Fall.
It is, thus, sought for a kind of be applicable not only to smooth bright and clean body surface, although apply also for it is smooth not only
The vacuum cup of clean body surface.
The content of the invention
The purpose of the present invention is：Offer is a kind of to be applicable not only to smooth body surface, applies also for rough object surface
Sucker and from this sucker suspension member.
The technical scheme is that：A kind of sucker, the center of sucker 1 is provided with cylindricality connector 11 outwardly, with even
Connect post and deform groove 12 to the sucker of sucker sunken inside for axis is provided with a circle in chuck surface.
Sucker expansion joint 13 of the circle to sucker sunken inside is provided with connecting pole and sucker junction.
In sucker towards the paster 2 that one piece of two sides is coated with viscose glue is posted on the wall of object, in paster towards sucker
The position of correspondence sucker deformation groove also is provided with circle paster deformation groove 21 on wall, is inhaled towards correspondence on the wall of sucker in paster
The position at disk expansion joint also is provided with a circle paster expansion joint 22, at the paster back side in paster deformation groove external diameter drop shadow spread
Post one piece of release liners.
The patch groove being recessed to the direction away from object is enclosed in the wall surrounding setting one of sucker towards object, in patch groove overlying
Cover two-sided cushion rubber.
Described sucker is plane sucker or taper sucker, and when sucker is taper sucker, sucker deforms groove 12 around cone bottom
Edge is set.
From the suspender that vacuumizes of above-mentioned sucker, also including connection sheet 3, platen 4 and unidirectional extraction valve 5, by connection sheet
Be bonded at the surrounding of platen inner chamber surrounding or sucker towards platen, then sucker be pressed into platen inner chamber, by connection sheet by sucker with
Platen is bonded together, and a closing space is formed between sucker and platen, is set on platen wall to platen sunken inside
Pumping groove, is provided with one group of aspirating hole of symmetric arrays in pumping groove bottom wall, and unidirectional extraction valve is placed in pumping groove；Use
When, vacuum lifting tool is pressed onto body surface, the air between pressing platen extrusion sucker and body surface makes sucker paster in object
Surface, makes to vacuumize suspender and is pasted onto body surface in advance by the paster on sucker, then take suction away from aspirating hole by aspiration pump
Air between disk and platen, the closing space air between platen and sucker reduces to form negative pressure, increasingly stronger negative pressure
Sucker middle part is pulled to be deformed upon to the direction of platen, so as to form a vacuum space, envelope between sucker and body surface
The negative pressure in space is closed while also drawing platen to the direction of sucker, so that sucker is more tightly pressed in body surface by platen.
In platen inner chamber, the position of correspondence connector sets the locating slot coordinated with connector formation negative and positive of outwards depression.
The described suspender that vacuumizes also includes peg 6, and described peg 6 is placed on platen 4.
Beneficial effect：
1st, sucker expansion joint and sucker deformation groove are set on sucker makes sucker have stronger deformability, accordingly,
Paster deformation groove and paster expansion joint are set on paster, paster is coordinated the deformation of sucker with certain deformability,
Towards release liners are sticked on the wall of object, the paster outside release liners enables sucker pre- to paster in paster deformation groove external diameter
It is bonded at body surface；Regulation cock is rotated again sucker center is pulled away from body surface, so as to form one between sucker and object
Vacuum space or negative pressure space, when vacuum space or increasing negative pressure space, the inwall of sucker will be produced one to
Interior pulling force, this pulling force passes to regulation cock by connecting pole, then passes to platen by regulation cock, makes platen by sucker
Edge and paster surrounding more tightly press to body surface, because the double faced adhesive tape for making paster has certain thickness, if
Body surface is crude not enough to be smoothed, and double faced adhesive tape will be deformed by the crunch from platen fills and leads up sucker edge and thing
Space between body surface face such that it is able to suitable for crude body surface.
Brief description of the drawings
Fig. 1 is the figure that pops of sucker of the invention；
Fig. 2 is the three-dimensional appearance schematic diagram of suspension member of the invention；
Fig. 3 is the figure that pops of suspension member of the invention；
Fig. 4 is the partial cutaway schematic of one embodiment of suspension member of the invention；
Fig. 5 is the suspension member absorption partial cutaway schematic on a surface of an of embodiment in Fig. 4；
Fig. 6 is the partial cutaway schematic of one embodiment of suspension member of the invention；
Fig. 7 is the suspension member absorption partial cutaway schematic on a surface of an of embodiment in Fig. 6.
Specific embodiment
As shown in figure 1, a kind of sucker, the center of sucker 1 is provided with cylindricality connector 11 outwardly, with connecting pole as axis
A circle is provided with chuck surface deform groove 12 to the sucker of sucker sunken inside.Sucker deformation groove can be drawn in the presence of external force
Obtain narrowerly wider or crowded.When the outwards deformation of sucker middle part, sucker deformation groove is widened, and makes the suction being located in sucker deformation groove
Disk has bigger deformability, and the sucker deformation being located at outside sucker deformation groove is smaller, helps outwards to become when sucker middle part
During shape, the strength for inwardly pulling the edge of sucker is reduced such that it is able to prevent from being moved inward because of the edge of sucker
Caused by gas leakage.
Sucker expansion joint 13 of the circle to sucker sunken inside is provided with connecting pole and sucker junction.The work at sucker expansion joint
It is also to make sucker that there is stronger deformability with identical with the effect of sucker deformation groove.
In sucker towards the paster 2 that one piece of two sides is coated with viscose glue is posted on the wall of object, in paster towards sucker
The position of correspondence sucker deformation groove also is provided with circle paster deformation groove 21 on wall, is inhaled towards correspondence on the wall of sucker in paster
The position at disk expansion joint also is provided with a circle paster expansion joint 22, at the paster back side in paster deformation groove external diameter drop shadow spread
Post one piece of release liners.During assembling, paster is first attached to sucker towards on the surface of object, then sticked at paster center release
Paper.
Described release liners can also be substituted with other objects such as pieces of cloth, plastic sheets without viscosity.Do not have in release liners
There is covering release liners circle on the paster for covering, sticky reduction is caused to prevent paster to be stained with dust or other objects, will inhale
Disk is adsorbed onto body surface and goes forward again to tear release liners circle.
It is identical that paster deforms groove and the effect at paster expansion joint and sucker deformation groove, the effect at sucker expansion joint, be all for
Paster is kept during sucker outwards deforms or resets deformation synchronous with sucker, and prevent paster in sucker clock
Face is subjected to displacement, once there is paster displacement, the reduced capability that paster can be caused to paste.Paster is two-sided to scribble the soft of viscose glue
Material is made, for example double faced adhesive tape.
Described sucker expansion joint, sucker deformation groove, paster deformation groove and paster expansion joint are shaped as U-shaped or V-type
Etc. the suitable shape for stretching and shrinking and easily make.
The patch groove being recessed to the direction away from object is enclosed in the wall surrounding setting one of sucker towards object, in patch groove overlying
Cover two-sided cushion rubber.
If adopted in this way, two-sided cushion rubber due to certain deformability, therefore, for the thickness of two-sided cushion rubber
Degree, when sucker is pressed to body surface, patch groove and body surface is filled up by the deformation of two-sided cushion rubber more than the depth of patch groove
Between space.
All there is the ability that can deform and with preferable viscosity of being pressurized due to the paster outside two-sided cushion rubber and release liners,
Therefore, sucker of the invention is applicable not only to smooth bright and clean body surface, applies also for crude body surface.
Described sucker is plane sucker or taper sucker, and when sucker is taper sucker, sucker deforms groove 12 around cone bottom
Edge is set.
From the suspender that vacuumizes of above-mentioned sucker, also including connection sheet 3, platen 4 and unidirectional extraction valve 5, by connection sheet
Be bonded at the surrounding of platen inner chamber surrounding or sucker towards platen, then sucker be pressed into platen inner chamber, by connection sheet by sucker with
Platen is bonded together, and a closing space is formed between sucker and platen, is set on platen wall to platen sunken inside
Pumping groove, is provided with one group of aspirating hole of symmetric arrays in pumping groove bottom wall, and unidirectional extraction valve is placed in pumping groove；Use
When, vacuum lifting tool is pressed onto body surface, the air between pressing platen extrusion sucker and body surface makes sucker paster in object
Surface, makes to vacuumize suspender and is pasted onto body surface in advance by the paster on sucker, then take suction away from aspirating hole by aspiration pump
Air between disk and platen, the closing space air between platen and sucker reduces to form negative pressure, increasingly stronger negative pressure
Sucker middle part is pulled to be deformed upon to the direction of platen, as shown in figure 5, sucker deformation groove 12 is widened, accordingly, paster deformation
Groove 21 is also widened, and sucker expansion joint 13 is then also widened, and accordingly, paster expansion joint 22 is then also widened, so that
A vacuum space is formed between sucker and body surface, the negative pressure of closing space simultaneously also draws platen to the direction of sucker,
So that sucker is more tightly pressed in body surface by platen.
Described check valve includes the valve block that one piece of elastic flexible material makes and one is formed around support feet
Center is provided with the support column composition of hexagonal through hole, and air channel is provided between the support feet of support column, and the height of support feet is more than valve
The thickness of piece, valve block is covered on aspirating hole, then injects the rotation of hexagonal through hole with hex tool, is screwable into support column and is taken out
Air drain, makes valve block enter the inner chamber formed between support feet, and when being evacuated with aspiration pump, valve block is sucked from out aspirating hole, platen
The air of the closing space of inner chamber enters aspiration pump from aspirating hole through air channel, and when stopping being evacuated, the negative pressure of closing space inhales dynamic
Valve block, makes valve block be covered on aspirating hole.
In platen inner chamber, the position of correspondence connector sets the locating slot coordinated with connector formation negative and positive of outwards depression.
When sucker middle part is in outwards deformation in the presence of aspiration pump, the connector of sucker progresses into locating slot, until connector
Roof pushes against locating slot, and sucker can not outwards deform again, and a vacuum space is formed between sucker and body surface.
The direction turnup of the circumferential sucker of the four of platen forms a bound edge, sucker is located in the bound edge of platen, makes paster
Protruded from inside to outside from bound edge.When that will vacuumize suspender absorption on a surface of an, paster is pressurized can occur certain deformation, with
The space filled up between sucker surrounding and body surface such that it is able to suitable for a certain degree of uneven surface, such as frosted glass,
Ceramic tile with lines, the wall with wood grain etc..
The described suspender that vacuumizes also includes peg 6, and described peg 6 is placed on platen 4, for example, being set on platen
Connecting rod outwardly is put, peg is threadedly coupled with connecting rod, the shape of peg is configured according to use demand.
Described peg is mainly used in capturing object or hanging object.
Above-described embodiment is intended merely to interpretation purposes of the invention, and is not limitation of the present invention, this technology
The those of ordinary skill in field, in essential scope of the invention, makes a variety of changes or substitutes, and should also belong to guarantor of the invention
Shield category.
Claims (8)
1. a kind of sucker, sucker (1) center is provided with cylindricality connector (11) outwardly, it is characterised in that：It is with connecting pole
Axis is provided with a circle and deforms groove (12) to the sucker of sucker sunken inside in chuck surface.
2. sucker according to claim 1, it is characterised in that：A circle is provided with sucker in connecting pole and sucker junction
The sucker expansion joint (13) of depression.
3. sucker according to claim 2, it is characterised in that：In sucker towards posting one piece of two sides all on the wall of object
The paster (2) of viscose glue is scribbled, also being provided with a circle paster towards the position of correspondence sucker deformation groove on the wall of sucker in paster becomes
Shape groove (21), a circle paster expansion joint (22) also is provided with paster towards the position at correspondence sucker expansion joint on the wall of sucker,
One piece of release liners is posted at the paster back side in paster deformation groove external diameter drop shadow spread.
4. sucker according to claim 1, it is characterised in that：One is set in sucker towards the wall surrounding of object to enclose to remote
From the patch groove that the direction of object is recessed, double faced adhesive tape circle is covered on patch groove.
5. sucker according to claim 1, it is characterised in that：Described sucker is plane sucker or taper sucker, works as suction
Disk is taper sucker, and sucker deforms groove (12) and set around cone feather edge.
6. the sucker from any one of the claims 1 to 5 vacuumizes suspender, it is characterised in that：From above-mentioned sucker
Suspender is vacuumized, also including connection sheet (3), platen (4) and unidirectional extraction valve (5), connection sheet platen inner chamber surrounding is bonded at
Or sucker is pressed into platen inner chamber towards the surrounding of platen, then by sucker, and sucker is bonded together with platen by connection sheet,
A closing space is formed between sucker and platen, the pumping groove to platen sunken inside is set on platen wall, in pumping bottom land
Wall is provided with one group of aspirating hole of symmetric arrays, and unidirectional extraction valve is placed in pumping groove；When using, vacuum lifting tool is pressed onto thing
Body surface face, the air between pressing platen extrusion sucker and body surface, makes sucker paster in body surface, makes to vacuumize suspender and leads to
The paster crossed on sucker is pasted onto body surface in advance, then takes air between sucker and platen away from aspirating hole by aspiration pump,
Closing space air between platen and sucker reduces to form negative pressure, and increasingly stronger negative pressure pulls sucker middle part to platen
Direction is deformed upon, and so as to form a vacuum space between sucker and body surface, the negative pressure of closing space also will simultaneously
Platen draws to the direction of sucker, so that sucker is more tightly pressed in body surface by platen.
7. sucker according to claim 6, it is characterised in that：In platen inner chamber, the position of correspondence connector sets outwards recessed
Sunken forms the locating slot that negative and positive coordinate with connector.
8. sucker according to claim 6, it is characterised in that：The described suspender that vacuumizes also includes peg (6), described
Peg (6) is placed on platen (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130708.2A CN106763113A (en) | 2017-03-06 | 2017-03-06 | Sucking disc and vacuum-pumping lifting appliance with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710130708.2A CN106763113A (en) | 2017-03-06 | 2017-03-06 | Sucking disc and vacuum-pumping lifting appliance with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106763113A true CN106763113A (en) | 2017-05-31 |
Family
ID=58961607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710130708.2A Withdrawn CN106763113A (en) | 2017-03-06 | 2017-03-06 | Sucking disc and vacuum-pumping lifting appliance with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106763113A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751325A (en) * | 2018-01-08 | 2019-05-14 | 刘禄军 | A kind of liquid proof sucker |
| CN115043209A (en) * | 2022-06-06 | 2022-09-13 | 浙江避泰电气科技有限公司 | Resistor disc batch grabbing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575374A (en) * | 1967-11-28 | 1971-04-20 | Zoltan Csenyi | Device for holding built-in fittings |
| CN2558807Y (en) * | 2002-06-26 | 2003-07-02 | 福茂塑料金属制品(嘉兴)有限公司 | Suction cup |
| CN201457990U (en) * | 2009-06-29 | 2010-05-12 | 叶常青 | Vacuum compressed bag |
| DE102011102779A1 (en) * | 2011-05-28 | 2012-11-29 | Boris Fishman | Suction cup for household appliance e.g. vacuum cleaner, has pumping device which is formed as return valve in housing of vacuum chamber, for pumping out air in interior of vacuum chamber |
| CN204729452U (en) * | 2015-06-29 | 2015-10-28 | 潘生明 | A kind of Novel sucker |
| CN106402134A (en) * | 2016-11-06 | 2017-02-15 | 晋江市东亨工业设计有限公司 | Suction sucking disc with air inlet hole |
| CN206503833U (en) * | 2017-03-06 | 2017-09-19 | 中山市元亨家居用品有限公司 | Sucking disc and vacuum-pumping lifting appliance with same |
-
2017
- 2017-03-06 CN CN201710130708.2A patent/CN106763113A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3575374A (en) * | 1967-11-28 | 1971-04-20 | Zoltan Csenyi | Device for holding built-in fittings |
| CN2558807Y (en) * | 2002-06-26 | 2003-07-02 | 福茂塑料金属制品(嘉兴)有限公司 | Suction cup |
| CN201457990U (en) * | 2009-06-29 | 2010-05-12 | 叶常青 | Vacuum compressed bag |
| DE102011102779A1 (en) * | 2011-05-28 | 2012-11-29 | Boris Fishman | Suction cup for household appliance e.g. vacuum cleaner, has pumping device which is formed as return valve in housing of vacuum chamber, for pumping out air in interior of vacuum chamber |
| CN204729452U (en) * | 2015-06-29 | 2015-10-28 | 潘生明 | A kind of Novel sucker |
| CN106402134A (en) * | 2016-11-06 | 2017-02-15 | 晋江市东亨工业设计有限公司 | Suction sucking disc with air inlet hole |
| CN206503833U (en) * | 2017-03-06 | 2017-09-19 | 中山市元亨家居用品有限公司 | Sucking disc and vacuum-pumping lifting appliance with same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751325A (en) * | 2018-01-08 | 2019-05-14 | 刘禄军 | A kind of liquid proof sucker |
| CN115043209A (en) * | 2022-06-06 | 2022-09-13 | 浙江避泰电气科技有限公司 | Resistor disc batch grabbing device |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
|
| WW01 | Invention patent application withdrawn after publication |