CN108458941A - The concrete bearing intension testing machine being convenient to operation - Google Patents
The concrete bearing intension testing machine being convenient to operation Download PDFInfo
- Publication number
- CN108458941A CN108458941A CN201810122929.XA CN201810122929A CN108458941A CN 108458941 A CN108458941 A CN 108458941A CN 201810122929 A CN201810122929 A CN 201810122929A CN 108458941 A CN108458941 A CN 108458941A
- Authority
- CN
- China
- Prior art keywords
- handle
- outer barrel
- wall
- concrete
- motion bar
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/52—Investigating hardness or rebound hardness by measuring extent of rebound of a striking body
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
- G01N2203/0083—Rebound strike or reflected energy
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The concrete bearing intension testing machine being convenient to operation, for improving accuracy when concrete strength measures.It includes concrete bouncing back instrument, outer barrel, motion bar, driving mechanism, clamping device and supporting rod, and motion bar is slidably mounted on outer barrel, is equipped with handle in outer tube rear end, is hingedly equipped with handle on outer drum outer wall, lockable mechanism is equipped between handle and outer barrel；Driving mechanism is equipped between motion bar and outer barrel, motion bar does linear uniform motion with respect to outer barrel under the driving of driving mechanism；The clamping device of clamping concrete bouncing back instrument is equipped on motion bar；Supporting rod is hingedly installed on connecting plate, the equal length of several supporting rods is done in support and is equipped with jackscrew between connecting plate.The test machine can fast implement the clamping to concrete bouncing back instrument, and can drive the uniform motion of concrete bouncing back instrument.The setting of three supporting rods can so that concrete bouncing back instrument is vertical with tested surface, and then ensure the precision measured.
Description
Technical field
The present invention relates to concrete bearing intension testing technical field, specifically a kind of concrete strength being convenient to operation
Test machine.
Background technology
In concrete bearing intension testing, concrete bouncing back instrument is common tool, it can be used for measuring the strong of concrete
Degree.When testing in the prior art concrete strength, hand-held concrete bouncing back instrument is needed directly to test concrete.
But since tested surface is not vertical plane or horizontal plane sometimes, speed is unstable when pressing concrete bouncing back instrument in addition, therefore surveys
The data accuracy obtained is poor.
Invention content
The purpose of the present invention is to provide a kind of concrete bearing intension testing machines being convenient to operation, for improving strong concrete
Accuracy when degree measures.
The technical scheme adopted by the invention to solve the technical problem is that：The concrete bearing intension testing machine being convenient to operation,
It includes concrete bouncing back instrument, characterized in that and further include outer barrel, motion bar, driving mechanism, clamping device and supporting rod, it is described
Motion bar is slidably mounted on outer barrel, outer tube rear end be equipped with handle, handle is hingedly installed on outer drum outer wall, handle with
Lockable mechanism is equipped between outer barrel；Driving mechanism, the motion bar under the driving of driving mechanism are equipped between motion bar and outer barrel
Opposite outer barrel does linear uniform motion；
On motion bar be equipped with clamping concrete bouncing back instrument clamping device, clamping device include holding ring, drive ring and
Clamping unit, holding ring are two of coaxial arrangement, are fixedly connected by connecting plate between two holding rings, one of holding ring
It is fixedly connected with motion bar, drive ring is also two, and the drive ring is rotatably installed on the outer wall of holding ring, in holding ring
Inner wall is equipped with several clamping units；Clamping unit includes the lock device being fixed on holding ring inner wall, is slidably mounted on locking
Slide plate on device inner wall, the clamping piece being fixed on lock pin, is arranged in slide plate and lock device the lock pin being fixed on slide plate
Limit spring between inner wall, one end of lock pin extend into driving after the side wall of holding ring under the action of limit spring
In groove on ring inner wall；
Supporting rod is hingedly installed on connecting plate, the equal length of several supporting rods is dry between connecting plate in support
Equipped with jackscrew.
Further, the driving mechanism include the motor being fixed in outer barrel, the gear that is fixed on motor, with activity
The rack that bar is connected and is engaged with gear.
Further, otic placode is equipped on the outer wall of outer barrel, handle is hinged with otic placode.
Further, lockable mechanism includes the fixator being fixed on otic placode, is slidably arranged in pushing away in fixator inner cavity
Plate, the bolt being fixed in push plate, the locking spring being arranged between push plate and fixator inner wall, under the action of locking spring
Bolt passes through fixator to be placed in the locking hole on handle and realizes being relatively fixed for handle and outer barrel.
Further, draw ring is fixed on bolt.
Further, the connecting plate is three, and is arc-shaped.
Further, grip part is equipped on handle, the outer diameter of grip part is more than the outer diameter of handle and the surface of grip part
Soft texture.
The beneficial effects of the invention are as follows：The concrete bearing intension testing machine provided by the invention being convenient to operation, can be quick
It realizes the clamping to concrete bouncing back instrument, and the uniform motion of concrete bouncing back instrument can be driven.The setting of three supporting rods, can be with
So that concrete bouncing back instrument is vertical with tested surface, and then ensure the precision measured.
Description of the drawings
Fig. 1 is the schematic diagram of the present invention；
Schematic diagram when Fig. 2 is present invention clamping concrete bouncing back instrument；
Fig. 3 is one of the schematic diagram of clamping device；
Fig. 4 is the two of the schematic diagram of clamping device；
Fig. 5 is the schematic internal view of clamping device；
Fig. 6 is the schematic diagram of motion bar driving mechanism；
Fig. 7 is partial enlarged view at the A in Fig. 5；
Fig. 8 is the schematic diagram that supporting rod is arranged on clamping device；
Position views of the Fig. 9 between supporting rod and tested surface；
Figure 10 is the schematic three dimensional views of connecting plate；
Figure 11 is the side schematic view of connecting plate；
Figure 12 is the schematic diagram of lockable mechanism；
In figure：1 outer barrel, 11 handles, 12 motors, 13 gears, 14 racks, 15 otic placodes, 16 handles, 161 grip parts, 162 locks
Only hole, 17 is hinged, 2 motion bars, 21 limiting slots, 3 drive rings, 31 grooves, 32 inclined surface, 4 holding rings, 5 connecting plates, 51 supports
Bar, 52 elongated slots, 53 idler wheels, 54 jackscrews, 6 concrete bouncing back instruments, 61 visual windows, 7 lock devices, 71 slide plates, 72 lock pins, 73 positioning
Spring, 74 clamping pieces, 75 gaskets, 8 tested surfaces, 9 fixators, 91 push plates, 92 bolts, 93 locking springs, 94 draw rings.
Specific implementation mode
As shown in Figures 1 to 12, the invention mainly comprises outer barrel 1, motion bar 2, clamping device, handle 16, lockable mechanisms
And supporting rod, present invention will now be described in detail with reference to the accompanying drawings..
As shown in Figure 1, outer barrel 1 is the metalwork of cylindrical structure, as shown in fig. 6, one end in outer barrel is fixed with handle
11, handle is rectangular-ambulatory-plane structure, in order to the grasping of people.It is solid on the side wall of outer barrel to ensure the stability of outer barrel when operation
Surely there is otic placode 15, hinged 17 are equipped with handle 16 on otic placode, grip part 161 are fixed on handle, grip part outer diameter is more than
The outer diameter and grip part soft surface of handle, in order to grasp.In use, operator can hold handle on the other hand, another is held
It stops the grip part of handle.It is equipped with locking hole 162 on handle, lockable mechanism is fixed on otic placode.
As shown in figure 12, lockable mechanism includes the fixator 9 being fixed on otic placode, is slidably arranged in pushing away inside fixator
Plate 91, the bolt 92 being fixed in push plate, the locking spring 93 being arranged between push plate and fixator inner wall, in locking spring
Fixator is stretched out at the effect end of the lower bolt of effect, and when the effect end of bolt is stretched into the locking hole on handle, true according to 2 points
The principle for determining straight line, is relatively fixed between handle and outer barrel at this time, and handle is perpendicular to the axis of outer barrel.In the drive of bolt
Moved end is equipped with draw ring 94, pulls draw ring that can drive in the effect end retraction fixator of bolt, realizes the separation of bolt and handle.
Outer barrel is hollow structure, and motion bar 2 is slidably fitted in the inner cavity of outer barrel, as shown in fig. 6, solid on motion bar
Surely there are rack 14, rack to be slidably connected with outer tube inner chamber, motor 12 is installed in the inner cavity of outer barrel, in the output of motor
End is fixed with gear 13, wheel and rack engagement cooperation.When motor works, motion bar can be driven with respect to the uniform rectilinear of outer barrel
Movement.Motor, gear and rack constitute driving mechanism.
Clamping device is fixed on motion bar, as shown in Figures 1 to 5, clamping device include drive ring 3, holding ring 4,
Connecting plate 5 and clamping unit, holding ring are cirque structure, and two that holding ring is coaxial setting.Drive ring is also annulus
Shape structure, and be two be coaxially arranged.Drive ring is rotatably installed on holding ring, passes through three circular arcs between two holding rings
The connecting plate of shape is fixed together.Motion bar is fixedly connected with one of holding ring, as shown in Fig. 4, Fig. 5, Fig. 7, is being clamped
It is set on the inner wall of ring there are three clamping unit, clamping unit includes the lock device 7 being fixed on holding ring inner wall, is slidably arranged in
Slide plate 71 in lock device inner cavity, the lock pin 72 being fixed on slide plate, the limit being arranged between slide plate and lock device inner wall
Spring 73, the clamping piece 74 being fixed on lock pin, the gasket 75 being fixed on clamping piece, gasket is rubber parts, in limit bullet
One end of lock pin is extend into after the side wall of holding ring in the groove 31 on drive ring inner wall under the action of spring, bottom portion of groove
For inclined surface 32, lock pin is contacted with inclined surface.Before measuring concrete strength, concrete bouncing back instrument 6 is first placed on holding ring
It is interior；Occurring to squeeze when rotating in an anti-clockwise direction drive ring, between inclined surface and lock pin makes lock pin constantly radially
It is mobile and close to holding ring center, until lock pin is detached from from groove completely.Three clamping pieces and concrete springback at this time
The outer wall of instrument is in close contact, and then clamping concrete bouncing back instrument tightly.
It is equipped with limiting slot 21 on motion bar, after concrete bouncing back instrument is placed in holding ring, should ensure that concrete returns
The rear end for playing instrument is placed in limiting slot, to prevent concrete bouncing back instrument moving along holding ring axial direction.
For the frictional force for increasing between gasket and concrete bouncing back instrument, anti-skid design is equipped on gasket.
Concrete bouncing back instrument is perpendicular to tested surface when to ensure to use, as shown in Figure 10, Figure 11, on the outer wall of connecting plate
Equipped with elongated slot 52, supporting rod 51 is hingedly installed in elongated slot, the first end and connecting plate of supporting rod are hinged, the of supporting rod
Two ends are rotatablely equipped with idler wheel 53, the equal length of three supporting rods, and supporting rod can be hidden in elongated slot.By supporting rod when use
From being pulled out in elongated slot until be arranged in fixed obtuse angle angle between supporting rod and connecting plate, then connecting plate and supporting rod it
Between be arranged jackscrew 54, to realize the locking between supporting rod and connecting plate.As shown in figure 9, idler wheel and tested surface 8 are connect at this time
It touches, determines a plane according to 3 points, the axis of holding ring is also perpendicularly to be measured perpendicular to tested surface, concrete bouncing back instrument at this time
Face, and then can ensure the precision measured.
In use, concrete bouncing back instrument is placed in holding ring first so that the rear end of concrete bouncing back instrument is scheduled on limit
In the slot of position；Then drive ring is rotated so that clamping piece clamps concrete bouncing back instrument；Supporting rod is pulled out from elongated slot so that branch
Strut is contacted with tested surface；Finally holding handle and handle, driving motor acts so that motion bar is along outer barrel linear uniform motion,
And then it completes to measure work.When installation, the visual window 61 on concrete bouncing back instrument should be made to expose, in order to read.
Claims (7)
1. the concrete bearing intension testing machine being convenient to operation, it includes concrete bouncing back instrument, characterized in that further includes outer barrel, work
Lever, driving mechanism, clamping device and supporting rod, the motion bar are slidably mounted on outer barrel, and handle is equipped in outer tube rear end,
Handle is hingedly installed on outer drum outer wall, lockable mechanism is equipped between handle and outer barrel；It is set between motion bar and outer barrel
There is driving mechanism, motion bar does linear uniform motion with respect to outer barrel under the driving of driving mechanism；
The clamping device of clamping concrete bouncing back instrument is equipped on motion bar, clamping device includes holding ring, drive ring and clamping
Unit, holding ring are two of coaxial arrangement, are fixedly connected by connecting plate between two holding rings, one of holding ring and work
Lever is fixedly connected, and drive ring is also two, and the drive ring is rotatably installed on the outer wall of holding ring, in the inner wall of holding ring
It is equipped with several clamping units；Clamping unit includes the lock device being fixed on holding ring inner wall, is slidably mounted in lock device
Slide plate on wall, the clamping piece being fixed on lock pin, is arranged in slide plate and lock device inner wall the lock pin being fixed on slide plate
Between limit spring, under the action of limit spring one end of lock pin pass through holding ring side wall after extend into drive ring
In groove on wall；
Supporting rod is hingedly installed on connecting plate, the equal length of several supporting rods is done in support and is equipped between connecting plate
Jackscrew.
2. the concrete bearing intension testing machine according to claim 1 being convenient to operation, characterized in that the driving mechanism packet
Include the motor being fixed in outer barrel, the gear being fixed on motor, the rack for being connected with motion bar and being engaged with gear.
3. the concrete bearing intension testing machine according to claim 1 being convenient to operation, characterized in that on the outer wall of outer barrel
Equipped with otic placode, handle is hinged with otic placode.
4. the concrete bearing intension testing machine according to claim 1 being convenient to operation, characterized in that lockable mechanism includes solid
The fixator that is scheduled on otic placode, the bolt being fixed in push plate, is arranged in push plate the push plate being slidably arranged in fixator inner cavity
Locking spring between fixator inner wall, bolt is placed on the locking on handle across fixator under the action of locking spring
Being relatively fixed for handle and outer barrel is realized in hole.
5. the concrete bearing intension testing machine according to claim 4 being convenient to operation, characterized in that be fixed on bolt
Draw ring.
6. the concrete bearing intension testing machine according to claim 1 being convenient to operation, characterized in that the connecting plate is three
It is a, and be arc-shaped.
7. the concrete bearing intension testing machine according to claim 1 being convenient to operation, characterized in that be equipped with and hold on handle
Portion is held, the outer diameter of grip part is more than the outer diameter of handle and the surface texturisation softness of grip part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122929.XA CN108458941A (en) | 2018-02-07 | 2018-02-07 | The concrete bearing intension testing machine being convenient to operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122929.XA CN108458941A (en) | 2018-02-07 | 2018-02-07 | The concrete bearing intension testing machine being convenient to operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108458941A true CN108458941A (en) | 2018-08-28 |
Family
ID=63238744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810122929.XA Pending CN108458941A (en) | 2018-02-07 | 2018-02-07 | The concrete bearing intension testing machine being convenient to operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458941A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721631A (en) * | 2020-05-11 | 2020-09-29 | 莆田学院 | Device and method for testing ultimate bearing capacity of concrete filled steel tube axial compression short column |
| CN112255096A (en) * | 2020-09-27 | 2021-01-22 | 深圳市盐田港建筑工程检测有限公司 | Building material strength detection device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5311764A (en) * | 1992-03-25 | 1994-05-17 | The United States Of America As Represented By The Secretary Of The Navy | Rebound hammer |
| CN2255486Y (en) * | 1995-05-12 | 1997-06-04 | 李正喜 | Automatic latch for casement |
| CN201322710Y (en) * | 2008-12-22 | 2009-10-07 | 谢让明 | Depth controllable high precision rebound tester |
| CN101871870A (en) * | 2010-07-14 | 2010-10-27 | 天津市津维电子仪表有限公司 | Semi-automatic steel anvil rating device of resiliometer |
| KR20140012472A (en) * | 2012-07-20 | 2014-02-03 | (주) 한국시설안전연구원 | Automatic hit point mark and vertical ancillary equipment for schmidt concrete test hammer |
| CN103991043A (en) * | 2013-02-17 | 2014-08-20 | 深圳市大族激光科技股份有限公司 | External-embrace type clamp |
| CN204126419U (en) * | 2014-09-09 | 2015-01-28 | 华中科技大学 | A kind of automatic pinning |
| CN204536143U (en) * | 2015-04-20 | 2015-08-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Auxiliary measuring device for resiliometer |
| CN205665127U (en) * | 2016-05-31 | 2016-10-26 | 洛阳市金鉴工程质量检测中心有限公司 | Automatic positioning and dotting device for concrete resiliometer |
| CN206523388U (en) * | 2017-03-10 | 2017-09-26 | 浙江荣庆工程管理有限公司 | A kind of reisilometer provided with auxiliary stand |
| CN206683978U (en) * | 2017-05-03 | 2017-11-28 | 南京扬子石化工程监理有限责任公司 | Portable reisilometer |
| CN206876475U (en) * | 2017-06-22 | 2018-01-12 | 深圳市国银建设工程项目管理有限公司 | A kind of auxiliary locator of reisilometer |
-
2018
- 2018-02-07 CN CN201810122929.XA patent/CN108458941A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5311764A (en) * | 1992-03-25 | 1994-05-17 | The United States Of America As Represented By The Secretary Of The Navy | Rebound hammer |
| CN2255486Y (en) * | 1995-05-12 | 1997-06-04 | 李正喜 | Automatic latch for casement |
| CN201322710Y (en) * | 2008-12-22 | 2009-10-07 | 谢让明 | Depth controllable high precision rebound tester |
| CN101871870A (en) * | 2010-07-14 | 2010-10-27 | 天津市津维电子仪表有限公司 | Semi-automatic steel anvil rating device of resiliometer |
| KR20140012472A (en) * | 2012-07-20 | 2014-02-03 | (주) 한국시설안전연구원 | Automatic hit point mark and vertical ancillary equipment for schmidt concrete test hammer |
| CN103991043A (en) * | 2013-02-17 | 2014-08-20 | 深圳市大族激光科技股份有限公司 | External-embrace type clamp |
| CN204126419U (en) * | 2014-09-09 | 2015-01-28 | 华中科技大学 | A kind of automatic pinning |
| CN204536143U (en) * | 2015-04-20 | 2015-08-05 | 中国电建集团贵阳勘测设计研究院有限公司 | Auxiliary measuring device for resiliometer |
| CN205665127U (en) * | 2016-05-31 | 2016-10-26 | 洛阳市金鉴工程质量检测中心有限公司 | Automatic positioning and dotting device for concrete resiliometer |
| CN206523388U (en) * | 2017-03-10 | 2017-09-26 | 浙江荣庆工程管理有限公司 | A kind of reisilometer provided with auxiliary stand |
| CN206683978U (en) * | 2017-05-03 | 2017-11-28 | 南京扬子石化工程监理有限责任公司 | Portable reisilometer |
| CN206876475U (en) * | 2017-06-22 | 2018-01-12 | 深圳市国银建设工程项目管理有限公司 | A kind of auxiliary locator of reisilometer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721631A (en) * | 2020-05-11 | 2020-09-29 | 莆田学院 | Device and method for testing ultimate bearing capacity of concrete filled steel tube axial compression short column |
| CN111721631B (en) * | 2020-05-11 | 2022-04-19 | 莆田学院 | Device and method for testing ultimate bearing capacity of concrete filled steel tube axial compression short column |
| CN112255096A (en) * | 2020-09-27 | 2021-01-22 | 深圳市盐田港建筑工程检测有限公司 | Building material strength detection device |
| CN112255096B (en) * | 2020-09-27 | 2024-01-30 | 深圳市盐田港建筑工程检测有限公司 | Building material intensity detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111693396B (en) | Multi-dimensional in-situ observation friction testing machine capable of positioning observation and quick-change clamp | |
| CN108458941A (en) | The concrete bearing intension testing machine being convenient to operation | |
| CN110926400B (en) | Aperture measuring device | |
| CN214747672U (en) | Brake disc detection device | |
| CN112197667B (en) | Straight pipe coaxiality detection device for pipeline machining | |
| CN108489837A (en) | Intelligent concrete bearing intension testing device | |
| CN208223993U (en) | A kind of electric plastic Rockwell apparatus | |
| CN109696353B (en) | Material strength testing device for product design | |
| CN218329701U (en) | Automobile wheel hub bearing measuring device | |
| CN218512164U (en) | Measuring mechanism for detecting strength of anti-breaking screw | |
| CN116399203A (en) | Detection tool for detecting distance between two shift center points of swing arm mounting box of auxiliary frame of automobile | |
| CN216348174U (en) | Special gauge for measuring position degree of side hole of casing | |
| CN213396908U (en) | Special manual gauge for detecting coaxiality of holes according to wall thickness difference principle | |
| CN114346935A (en) | Beat power measurement frock | |
| CN210953385U (en) | Detection equipment for screw and nut matching precision | |
| CN212568230U (en) | Quality detection platform is used in electromechanical accessory preparation | |
| CN216523624U (en) | Concentricity quick-checking device | |
| CN117761534B (en) | Seat overturning motor performance detection equipment | |
| CN216484437U (en) | Cam machining check tool | |
| CN220912901U (en) | Concrete rebound detection device | |
| CN214426574U (en) | High-precision gauge | |
| CN221100726U (en) | Nondestructive testing flaw detection device for metal material | |
| CN217275871U (en) | Simple device for cam positioning and detecting hole | |
| CN220490744U (en) | Fixing device for concentration meter | |
| CN221280224U (en) | Thread pitch diameter measuring instrument |
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 |
Application publication date: 20180828 |
|
| WD01 | Invention patent application deemed withdrawn after publication |