CN106953272A - The dual-purpose threading apparatus of hand push electric drill - Google Patents
The dual-purpose threading apparatus of hand push electric drill Download PDFInfo
- Publication number
- CN106953272A CN106953272A CN201710315060.6A CN201710315060A CN106953272A CN 106953272 A CN106953272 A CN 106953272A CN 201710315060 A CN201710315060 A CN 201710315060A CN 106953272 A CN106953272 A CN 106953272A
- Authority
- CN
- China
- Prior art keywords
- clamping device
- sleeve
- collet
- dual
- electric drill
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/085—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using portable tools
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits
Landscapes
- Drilling And Boring (AREA)
Abstract
The application provides architectural electricity and installs a kind of dual-purpose threader of hand push electric drill for flexible axle being penetrated spool, it includes the collet with central passage and is enclosed within the clamping device of the sleeve of collet periphery, and push rod and conduit, the axis of three's central passage is overlapped, and flexible axle is therethrough during work.Described clamping device has taper, oval two kinds of structures.It is in place of the novelty of the application threading apparatus：Controllability clamping is carried out to flexible axle using clamping device, both can manual linear advancement flexible axle by push rod, again can be by electric tool screw propulsion flexible axle, the advantage of the threading apparatus is with hand-operated tools Portable power saving, the small threading requirement of the curved few resistance of most spools can be met, it is simultaneously again strong with the big penetration capacity of electric drill moment of torsion, the big threading requirement of the curved many resistances of a small number of spools can be met, one such device is for the debris that is directed through in pipe, it is deep to be welcome by workmen so as to avoid the dredging of chisel wall especially effectively.
Description
Technical field
The application is related to a kind of device that electric wire is penetrated in wall spool, particularly penetrates a flexible axle as traction electricity
The threader of line.
Background technology
Architectural electricity, which is installed, to be needed in wall, floor or the preset cable protective tube of ceiling（Abbreviation spool）Inside lay electricity
Line or cable, traditional way are that a steel wire or flexible axle are penetrated spool, as the draught line of wire through pipe, because spool is long
And bend and may have debris in pipe, manual threading labor intensity is big, penetration capacity is poor, efficiency of construction is low, when meeting stifled also
The broken pipe of chisel wall need to be forced, then have special threading apparatus to come out one after another, it is known that threading apparatus mainly have that air pressure is promoted and friction is pushed away
Enter two types, air pressure propulsion meets pipeline gas leakage and will be unable to use, and can only realize linear advancement, runs into curved many resistances big
Spool be still easily blocked, friction propulsion can increase spinfunction, significantly improve penetration capacity, but current product is more stupid
It is again inconvenient for use.
The content of the invention
The purpose of the application be in view of the shortcomings of the prior art and provide it is a kind of both can manual linear advancement, it is many to adapt to
Number spool is curved, and resistance is small, require Portable power saving less, can carry out screw propulsion by electric drill again, to adapt to the curved many resistances of a small number of spools
Power is big, require the strong threading apparatus of penetration capacity.
The technical scheme of the application is：
A kind of dual-purpose threading apparatus of hand push electric drill, for flexible axle to be penetrated into spool, its feature has：
Clamping device, it includes a collet with central passage, and one is enclosed within the peripheral sleeve of the collet；
Push rod, it includes a connecting rod with central passage, the handle that is fixed on the connecting rod, one end of connecting rod and folder
Mechanism connection is held, the other end is selectively connected an electric hand drill；
Conduit, it includes a pipe with central passage, and the pipe is enclosed within the periphery of clamping device, and the two ends of pipe are set
There is end cap；
The axis of described clamping device, push rod and conduit three's central passage is overlapped, and flexible axle is therethrough during work.
Further, described clamping device uses pyramidal structure, wherein,
Described sleeve has bellmouth；
Its body of described collet is elastic material, and a part for body is the circular cone that taper is matched with sleeve bellmouth
Body, it is averagely divided at least two chuck portions along axis, and the outer wall in each chuck portion is provided with multiple balls, is not divided
Body part be joint portion, joint portion is connected with push rod.
Further, the sleeve pipe of described clamping device, its one end for boring bottom one end cap, end cap and bullet are installed by screw thread
Property chuck between be provided with preloading spring, position of the regulation end cap on sleeve pipe can adjust the action sensitivity of clamping device.
Further, described clamping device uses oval structure, wherein,
Described sleeve has elliptical aperture；
Its body of described collet is elastic material, and a part for body is cylinder, and it is averagely divided into along axis
Two chuck portions, the outer wall in each chuck portion is provided with multiple balls, and not divided body part is joint portion, joint portion with
Push rod is connected；
The major axis dimension of the Outside Dimensions that described collet opens and sleeve elliptical aperture matches, and what collet was tightened
The minor axis dimension of Outside Dimensions and sleeve elliptical aperture matches.
Further, described conduit also includes a clamp mechanism, and it includes a slide rail with central passage, one
It is enclosed within the clip on the slide rail, respectively there is guide groove on the correspondence position of slide rail and clip；Multiple balls are provided with guide groove, slide rail
One end and the sleeve connection of clamping device, clip are coupled by friction plate with conduit, and its connection place is provided with rim brake.
Further, the drive end bearing bracket of described conduit, connection one has the flexible extension tube of central passage, and this is soft during work
Property extension tube is partially inserted into spool.
Further, described electric hand drill can be rotated using the hand electric of electric drill, impact drill, electric hammer or its combination function
Instrument, its chuck is flexibly connected with push rod, and its rotating shaft, which has, can run through flexible axle in central passage, passage.
Compared with the prior art, the novel part of the dual-purpose threading apparatus of the application hand push electric drill is：Using clamping device pair
Flexible axle carry out controllability clamping, by push rod both can manual linear advancement flexible axle, again can be by electric tool screw propulsion
Flexible axle, the advantage of the threading apparatus is that, with hand-operated tools Portable power saving, can meet the small threading of the curved few resistance of most spools
It is required that, while having the big penetration capacity of electric drill moment of torsion strong again, the big threading requirement of the curved many resistances of a small number of spools, one can be met
Such device is for the stifled thing being directed through in pipe, so that it is especially effective to avoid chisel wall from dredging, therefore depth is by workmen's
Welcome.
Brief description of the drawings
Fig. 1 is the dual-purpose threading apparatus theory structure schematic diagram of the application hand push electric drill；
Fig. 2 is the dual-purpose threading apparatus internal structure schematic diagram of first embodiment hand push electric drill taper；
Fig. 3 is the clamping device schematic cross-section of the dual-purpose threading apparatus of first embodiment hand push electric drill taper；
Fig. 4 is the dual-purpose threading apparatus internal structure schematic diagram of second embodiment hand push electric drill ellipse；
Fig. 5 is the clamping device schematic cross-section of the dual-purpose threading apparatus of second embodiment hand push electric drill ellipse；
Fig. 6 is the clamp mechanism schematic cross-section of the dual-purpose threading apparatus of second embodiment hand push electric drill ellipse；
In figure：
1. clamping device；It includes：11. collet；12. ball；13. sleeve；14. sleeve end cap；15. pretension bullet
Spring；16. thrust bearing；
2. push rod；It includes：21. connecting rod；22. handle；23. needle bearing；
3. conduit；It includes：31. pipe；32. drive end bearing bracket；33. rear end cap；34. slide rail；35. clip；36. guide groove；
37. extension tube；38. friction plate；39. rim brake；
4. electric hand drill；
5. flexible axle.
Embodiment
In order that those skilled in the art more fully understand the technical scheme of the application, below in conjunction with the accompanying drawings and specific implementation
Example is described in further detail to the application.
The application provides a kind of dual-purpose threading apparatus of hand push electric drill, and its principle is as shown in figure 1, it has：Clamping device 1, its
Including one have central passage collet 11, one be enclosed within the collet periphery sleeve 13；Also there is push rod 2,
It includes a connecting rod 21 with central passage, the handle 22 that is fixed on the connecting rod, one end of connecting rod 21 and clamping
Mechanism 1 is connected, and the other end is selectively connected an electric hand drill 4；Also there is conduit 3, it, which includes one, has central passage
Pipe 31, the pipe is enclosed within the periphery of clamping device 1, and the two ends of pipe are respectively arranged with drive end bearing bracket 32, rear end cap 33；It is described
Clamping device 1, the axis of three's central passage of push rod 2 and conduit 3 overlap, flexible axle 5 is therethrough during work.
The dual-purpose threading apparatus of hand push electric drill so constituted, operator can promote clamping device 1, clamping by its push rod 2
Mechanism 1 clamps flexible axle 5 in conduit 3 by linear advancement, can also be promoted by electric hand drill 4 and push rod 2 while rotating
Clamping device 1, clamping device 1 clamps flexible axle 5 in conduit 3 by screw propulsion.
The first embodiment of the application is the dual-purpose threading apparatus of hand push electric drill taper, and its internal structure as shown in Figure 2 and Figure 3, is pressed from both sides
Hold mechanism 1 and use pyramidal structure, wherein, sleeve 13 has bellmouth；Its body of collet 11 is elastic material, the one of body
The cone that part matches for taper with the bellmouth of sleeve 13, it is averagely divided into three chuck portions, each chuck along axis
The outer wall in portion is provided with multiple balls 12, and not divided body part is joint portion, and joint portion is connected with push rod 2.
The sleeve pipe 13 of described clamping device, its one end for boring bottom also installs an end cap 14 by screw thread, end cap 14 with
Preloading spring 15 and thrust bearing 16 are provided between collet 11, position of the regulation end cap 14 on sleeve pipe 13 can be adjusted
The action sensitivity of whole clamping device 1.
Described catheter proximal end lid 32, is also connected with a flexible extension tube 37 with central passage, flexibility during work
Extension tube 37 is partially inserted into spool.
Described electric hand drill 4 can use the hand electric throw of electric drill, impact drill, electric hammer or its combination function,
Its chuck is flexibly connected with push rod 2, and its rotating shaft, which has, can run through flexible axle 5 in central passage, passage.
The course of work of the dual-purpose threading apparatus of hand push electric drill taper of the embodiment, operator can by the hand push threading of push rod 2,
Conduit 3 is held during operation on the other hand, another holding stops handle 22 by the promotion collet 11 of connecting rod 21, is allowed to the court in sleeve 13
The propulsion of vertex of a cone direction, in advance by adjusting position of the end cap 14 on sleeve 13, collet 11 is in sleeve 13
Pre strained state and close clamping critical point, its chuck portion is by the taper of sleeve 13 under the double action of thrust and frictional force
Wall is tightened, and the chuck portion tightened produces chucking power to being applied in flexible axle 5 therein, so as to drive depth of the flexible axle 5 to spool
Drive on boldly, collet 11 is retracted during backhaul, its chuck portion is opened by elasticity, the chucking power to flexible axle 5 also disappears therewith, flexible axle 5
Rest in spool and be not pulled, and so on realize hand push threading.
Operator can also carry out threading by electric hand drill 4, and electric hand drill 4 first is passed through into its chuck and the tail of connecting rod 21
Portion is connected, and holds another holding electric hand drill 4 of conduit 3 during operation on the other hand, electric drill is opened while collet 11 are promoted forward
Rotated, collet 11 is rolled in sleeve 13 by ball to be rotated, and its chuck portion is by the conical inboard wall institute beam of sleeve 13
Tightly, the chuck portion tightened produces chucking power to being applied in flexible axle 5 therein, so as to drive flexible axle 5 to be drive on boldly in spool inside spin, returns
Electric drill is closed during journey and retracts collet 11, its chuck portion is opened by elasticity, and the chucking power to flexible axle 5 also disappears therewith, flexible axle 5
Rest in spool and be not pulled, and so on realize electric drill threading.
The second embodiment of the application is the dual-purpose threading apparatus of hand push electric drill ellipse, its internal structure such as Fig. 4, Fig. 5, Fig. 6
Shown, the difference of second embodiment and first embodiment is：Clamping device 1 uses oval structure, wherein, sleeve 13 has
There is elliptical aperture；Its body of collet 11 is elastic material, and a part for body is cylinder, and it is averagely divided into along axis
Two chuck portions, the outer wall in each chuck portion is provided with multiple balls 12, and not divided body part is joint portion, joint portion
It is connected with push rod 2；The Outside Dimensions that collet 11 opens are slightly less than the major axis dimension L of the elliptical aperture of sleeve 13, to ensure elasticity
Chuck 11 is flared in sleeve 13, and the Outside Dimensions that collet 11 is tightened are slightly larger than the minor axis dimension of the elliptical aperture of sleeve 13
H, to ensure that collet 11 is tightened in sleeve 13.
Described conduit 3 also includes a clamp mechanism, and it includes a slide rail 34 with central passage, and one is enclosed within
Respectively there is guide groove 36 on the correspondence position of clip 35 on the slide rail, slide rail 34 and clip 35；Multiple balls are provided with guide groove 36
12, one end of slide rail 34 and the sleeve 13 of clamping device are connected, and the other end of slide rail 34 passes through 21 turns of needle bearing 23 and connecting rod
Dynamic connection, clip 35 is coupled by friction plate 38 with conduit 3, and its connection place is provided with rim brake 39.
The course of work of the dual-purpose threading apparatus of hand push electric drill ellipse of the embodiment, operator can be worn by the hand push of push rod 2
Line, holds another holding of rim brake 39 and stops handle 22, rotate collet 11 by connecting rod 21, collet 11 exists on the other hand during operation
Rotated towards short-axis direction in sleeve 13, its chuck portion is tightened by the oval inwall of sleeve 13, the chuck portion tightened to through
Flexible axle 5 wherein produces chucking power, at the same time promotes push rod 2 to drive clamping device 1 to exist by slide rail 34 along guide groove 36
Linear advancement in clip 35 and conduit 3, so as to drive flexible axle 5 to be drive on boldly to the depth of spool；Both hands discharge elastic clip during backhaul
First 11 torque, its chuck portion is opened by elasticity, and the chucking power to flexible axle 5 also disappears therewith, retracts clamping device 1 and flexible axle 5
Remain in spool, and so on realize hand push threading.
Operator can also carry out threading by electric hand drill 4, first connect electric hand drill 4 with connecting rod 21 by its chuck
Connect, hold another holding electric hand drill 4 of rim brake 39 during operation on the other hand, opening electric drill while collet 11 are promoted forward is carried out
Rotation, clamping device 1 drives clip 35 to rotate by slide rail 34 and guide groove 36, is rubbed between clip 35 and friction plate 38,
The size of its frictional force is adjusted to moderate in advance by rim brake 39, its chuck portion is tightened by the oval inwall of sleeve 13,
The chuck portion tightened produces chucking power to being applied in flexible axle 5 therein, drives flexible axle 5 to be drive on boldly in spool inside spin, is closed during backhaul
Closing electric drill makes collet 11 lose torque, and its chuck portion is opened by elasticity, and its two rows ball 12 rests on the elliptical aperture of sleeve 13
Long axis direction, the chucking power to flexible axle 5 also disappears therewith, retracts clamping device 1 and flexible axle 5 is remained in spool, so
Back and forth realize electric drill threading.
It may be noted that above-mentioned specific embodiment is not exhaustive for the technical scheme of the application, all power in the application
Modification, replacement that profit is made on the basis of requiring etc., is regarded as the protection domain of the application.
Claims (7)
1. a kind of dual-purpose threading apparatus of hand push electric drill, for flexible axle to be penetrated into spool, its feature has：
Clamping device, it includes a collet with central passage, and one is enclosed within the peripheral sleeve of the collet；
Push rod, it includes a connecting rod with central passage, the handle that is fixed on the connecting rod, one end of connecting rod and folder
Mechanism connection is held, the other end is selectively connected an electric hand drill；
Conduit, it includes a pipe with central passage, and the pipe is enclosed within the periphery of clamping device, and the two ends of pipe are set
There is end cap；
The axis of described clamping device, push rod and conduit three's central passage is overlapped, and flexible axle is therethrough during work.
2. the dual-purpose threading apparatus of hand push electric drill according to claim 1, it is characterized in that：
Described clamping device uses pyramidal structure, wherein,
Described sleeve has bellmouth；
Its body of described collet is elastic material, and a part for body is the circular cone that taper is matched with sleeve bellmouth
Body, it is averagely divided at least two chuck portions along axis, and the outer wall in each chuck portion is provided with multiple balls, is not divided
Body part be joint portion, joint portion is connected with push rod.
3. the dual-purpose threading apparatus of hand push electric drill according to claim 1,2, it is characterized in that：
An end cap is installed in the sleeve pipe of described clamping device, its one end for boring bottom by screw thread, between end cap and collet
Preloading spring is provided with, position of the regulation end cap on sleeve pipe can adjust the action sensitivity of clamping device.
4. the dual-purpose threading apparatus of hand push electric drill according to claim 1, it is characterized in that：
Described clamping device uses oval structure, wherein,
Described sleeve has elliptical aperture；
Its body of described collet is elastic material, and a part for body is cylinder, and it is averagely divided into along axis
Two chuck portions, the outer wall in each chuck portion is provided with multiple balls, and not divided body part is joint portion, joint portion with
Push rod is connected；
The major axis dimension of the Outside Dimensions that described collet opens and sleeve elliptical aperture matches, and what collet was tightened
The minor axis dimension of Outside Dimensions and sleeve elliptical aperture matches.
5. the dual-purpose threading apparatus of hand push electric drill according to claim 1,4, it is characterized in that：
Described conduit also includes a clamp mechanism, and it includes a slide rail with central passage, and one is enclosed within the slide rail
On clip, respectively there is guide groove on the correspondence position of slide rail and clip；Multiple balls, one end of slide rail and clamping are provided with guide groove
The sleeve connection of mechanism, clip is coupled by friction plate with conduit, and its connection place is provided with rim brake.
6. the dual-purpose threading apparatus of hand push electric drill according to claim 1, it is characterized in that：
The drive end bearing bracket of described conduit, connection one has the flexible extension tube of central passage, and the flexibility extends pipe portion during work
It is inserted into spool with dividing.
7. the dual-purpose threading apparatus of hand push electric drill according to claim 1, it is characterized in that：
Described electric hand drill can use the hand electric throw of electric drill, impact drill, electric hammer or its combination function, its chuck
It is flexibly connected with push rod, its rotating shaft, which has, can run through flexible axle in central passage, passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315060.6A CN106953272A (en) | 2017-05-08 | 2017-05-08 | The dual-purpose threading apparatus of hand push electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710315060.6A CN106953272A (en) | 2017-05-08 | 2017-05-08 | The dual-purpose threading apparatus of hand push electric drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106953272A true CN106953272A (en) | 2017-07-14 |
Family
ID=59479272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710315060.6A Pending CN106953272A (en) | 2017-05-08 | 2017-05-08 | The dual-purpose threading apparatus of hand push electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106953272A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819298A (en) * | 2017-09-20 | 2018-03-20 | 国家电网公司 | A kind of underground cable carrying method |
| CN108387990A (en) * | 2018-03-30 | 2018-08-10 | 深圳市创鑫激光股份有限公司 | Gas-pushing pipeline self-threading method and apparatus |
| CN109138101A (en) * | 2018-09-10 | 2019-01-04 | 赵红丽 | Closestool or blockage of sewer dredging method |
| CN113566802A (en) * | 2021-06-15 | 2021-10-29 | 顺德职业技术学院 | Building engineering straightness detection device that hangs down |
-
2017
- 2017-05-08 CN CN201710315060.6A patent/CN106953272A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819298A (en) * | 2017-09-20 | 2018-03-20 | 国家电网公司 | A kind of underground cable carrying method |
| CN108387990A (en) * | 2018-03-30 | 2018-08-10 | 深圳市创鑫激光股份有限公司 | Gas-pushing pipeline self-threading method and apparatus |
| CN109138101A (en) * | 2018-09-10 | 2019-01-04 | 赵红丽 | Closestool or blockage of sewer dredging method |
| CN113566802A (en) * | 2021-06-15 | 2021-10-29 | 顺德职业技术学院 | Building engineering straightness detection device that hangs down |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106953272A (en) | The dual-purpose threading apparatus of hand push electric drill | |
| US5782311A (en) | Method and apparatus for installation of underground pipes | |
| US2349033A (en) | Boring head | |
| US20210331303A1 (en) | Multi-Use Hammer Device and Method | |
| WO2006121543A8 (en) | Method and device for repairing or reinforcing an underground pipe | |
| CN207475088U (en) | The dual-purpose threading apparatus of hand push electric drill | |
| US9316069B2 (en) | Guide device for coiled tubing | |
| JP5738717B2 (en) | Protective tube insertion machine | |
| CN211693766U (en) | Subway pipeline thrust device | |
| US2522684A (en) | Hose securing means | |
| US2940099A (en) | Sewer cleaner | |
| US1223027A (en) | Dust-collector for rock-drills. | |
| CN106646802B (en) | Application method of roller type threading machine | |
| US9988845B2 (en) | Vibrating soil probe | |
| CN206811191U (en) | Electric drill chuck | |
| CN106078583A (en) | A kind of Labor-saving wrench for building sites | |
| US4067200A (en) | Device and method for installing ducts in holes produced by soil piercing tool | |
| CN113823926B (en) | Building site earthing device | |
| WO2016016497A1 (en) | Electrical device for inserting a guide into a conduit | |
| CN205521149U (en) | A installation mechanism for installing interior sleeve pipe among tubular heat exchanger | |
| CN207071101U (en) | A kind of scope foreign body forcepses | |
| CN110076370B (en) | Drilling machine with automatic positioning function | |
| CN214907751U (en) | Flexible cholangioscope auxiliary forceps | |
| CN218940515U (en) | Threading device | |
| CN207914649U (en) | Soft multi-angle drilling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170714 |
|
| WD01 | Invention patent application deemed withdrawn after publication |