CN109799767A - The rotary type multilane vehicle of rotary switch stops system - Google Patents
The rotary type multilane vehicle of rotary switch stops system Download PDFInfo
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- CN109799767A CN109799767A CN201910116769.2A CN201910116769A CN109799767A CN 109799767 A CN109799767 A CN 109799767A CN 201910116769 A CN201910116769 A CN 201910116769A CN 109799767 A CN109799767 A CN 109799767A
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Abstract
The invention discloses the rotary type multilane vehicles of rotary switch to stop system, and being mainly used for traffic and transport field prevents Overheight Vehicles from hitting bridge or tunnel use.It eliminates height-limiting bar, prevents Overheight Vehicles from making a breakthrough by ground thorn device, can also alert the driver of Overheight Vehicles in advance；It is made of vehicle mounted GPS guidance system, license plate number identifying system, laser ranging system, rotary switch device, vehicle arresting system；Its working principle is that: vehicle mounted GPS guidance system is opened when vehicle driver sets out, input the maximum height of vehicle, destination is inputted again, vehicle mounted GPS guidance system shows the headroom in approach bridge and tunnel, and it alerts driver's vehicle and passes through some bridge or tunnel superelevation, when Overheight Vehicles close on bridge or tunnel, laser ranging system judges the vehicle super-high, license plate number identifying system identifies the license plate number of the vehicle, rotary switch device connects the power supply of vehicle arresting system, intercepts to the vehicle.
Description
Technical field
Present invention is mainly used for traffic and transport fields to prevent Overheight Vehicles from hitting bridge or tunnel use.
Background technique
Height-limiting bar is provided with before the bridge in China, tunnel face, generally at present to prevent Overheight Vehicles from hitting bridge or tunnel
Road, but braked again there's not enough time after the driver of Overheight Vehicles observes height-limiting bar, often Overheight Vehicles are hit
Superelevation bar causes the destruction of height-limiting bar and vehicle loss, serious shock also to will cause occupant's injures and deaths.
Summary of the invention
The present invention solves the above problem, it eliminates height-limiting bar, prevents Overheight Vehicles from making a breakthrough by ground thorn device, can be with
The driver of Overheight Vehicles is alerted in advance；It is by vehicle mounted GPS guidance system (1), license plate number identifying system (2), laser ranging system
It unites (3), vehicle arresting system (4), rotary switch device (24) composition；Vehicle mounted GPS guidance system (1) stores the maximum of vehicle
Highly, the maximum height of cargo can also be inputted, while vehicle mounted GPS guidance system (1) prestores each bridge and tunnel
Vehicle arresting system (4) are arranged on each lane of the first distance close to bridge or tunnel in headroom, close to bridge
Or roadside second distance setting license plate number identifying system (2) and laser ranging system (3) in tunnel, described in the second distance ratio
First distance is remote, and laser ranging system (3) is made of upright bar (22), laser range finder (23), and upright bar (22) installs laser on top
The height of rangefinder (23), the laser beam that laser range finder (23) issues is exactly the maximum headroom in bridge or tunnel, is swashed
Optar (23) measures Overheight Vehicles superelevation part at a distance from laser range finder (23), license plate number identifying system (2) identification
The license plate number of vehicle, license plate number identifying system (2) and laser ranging system (3) are equipped with shared microprocessor, micro- place
Reason device stores the width data in each lane, and each lane is mounted on sound equipment light apartment warning；Rotary switch device
(24) it is made of column (30), whippletree (31) and switch (32), one end of whippletree (31) and hinged, whippletree on the top of column (30)
(31) can horizontally rotate around its hinge joint, the floor height of whippletree (31) is exactly the headroom in bridge or tunnel, column
(30) basculating arm (33) are installed in the fixed switch (32) in top, the upper end of switch (32), and the upper end of basculating arm (33) is higher than whippletree (31)
Bottom surface, switch (32) connect by power supply line with the electromagnet (10) of vehicle arresting system (4), and rotary switch device (24) is pacified
Mounted in the left side roadside of every set vehicle arresting system (4)；Vehicle arresting system (4) mainly include shell (5), thorn device (6),
Backstop tongue (7), spring A(8), pillow iron A(9), electromagnet (10), spring B (11), pillow iron B(14), ground thorn device (6), backstop tongue
(7), spring A(8), pillow iron A(9), electromagnet (10), spring B (11), pillow iron B(14) be installed in shell (5), rest the head on iron A
(9) and pillow iron B(14) be symmetrically arranged at the lower part in shell (5), backstop tongue (7) and spring A(8) and be mounted on pillow iron B(14)
Upper end and the upper right quarter in shell (5), rest the head on iron A(9) and pillow iron B(14) between space in arrange thorn device (6) and
Spring B (11), spring A(8) the inner wall of right end and shell (5) fix, spring A(8) left end and backstop tongue (7) right end it is solid
Fixed, there are top incline (25) and bottom incline (26), pillow iron A(9 in the left end of backstop tongue (7)) left side and downside and shell
(5) medial surface is fixed, and iron B(14 is rested the head on) right side and downside and the medial surface of shell (5) fix, pillow iron A(9) be provided with
Slot (17), electromagnet (10) be mounted in pillow iron A(9) slot (17) in, electromagnet (10) can be in the case where energization and power-off
Its movable lug (21) is retracted and is stretched out in slot (17), ground thorn device (6) bores (12), beam (27), bottom plate (28), bar (13) group by thorn
At the lower end of thorn cone (12) and the upper end of beam (27) are fixed, and the lower end of beam (27) and the upper end of bottom plate (28) are fixed, bottom plate (28)
Lower end and the upper end of spring B (11) fix, the lower end of spring B (11) and the lower end inner wall of shell (5) are fixed, the right side of beam (27)
Upper end is chamfering, and there is slot B(15 in the left side between the lower end of beam (27) and the upper end of bottom plate (28)), the bottom righthand side of beam (27) has
Acclivitous stop surface (29), the left end of beam (27) and the right end of bar (13) are fixed, the left end of bar (13) and the left side of shell (5)
Medial surface is hinged, and the left end of bar (13) can be rotated around its hinge joint, has among the upper end of shell (5) opening (16), opening
(16) external corner of lower end is chamfering, and opening (16), thorn cone (12) and bar can be passed through when thorn cone (12) rotates counterclockwise
(13) when not rotating counterclockwise, electromagnet (10) is in off-position, and the movable lug (21) of electromagnet (10) stretches out, the movable lug of stretching
(21) insertion groove B(15) in, while spring B (11) is in compressive state；Its working principle is that: opening when vehicle driver sets out
Vehicle mounted GPS guidance system (1) inputs the maximum height of vehicle or the maximum height of loading, and the two height takes large values, then inputs
Destination, vehicle mounted GPS guidance system (1) show the headroom in approach bridge and tunnel, if vehicle super-high, vehicle GPS is led
Boat system (1) alerts driver's vehicle by some bridge or tunnel superelevation, reminds driver to detour, when Overheight Vehicles face
When nearly bridge or tunnel, alerting driver's vehicle again, no through traffic for superelevation, if driver's driving Overheight Vehicles are strong
Row pass through, when Overheight Vehicles travel to license plate number identifying system (2) and laser ranging system (3) location when, Laser Measuring
Laser range finder (23) transmitting laser beam away from system (3) scans the superelevation part to Overheight Vehicles and measures laser range finder
(23) at a distance from the superelevation part of Overheight Vehicles, then by this distance data transmission to microprocessor, microprocessor receives sharp
Width after the range data of the superelevation part of optar (23) and Overheight Vehicles with each lane stored in microprocessor
Data compare, and thus judge lane locating for the Overheight Vehicles, while license plate number identifying system (2) identifies the vehicle of the vehicle
Signal is simultaneously transmitted to microprocessor, the sound equipment light apartment warning in lane locating for microprocessor instruction Overheight Vehicles, warning by the trade mark
No through traffic for superelevation for the vehicle of the trade mark, when Overheight Vehicles continue to travel to the rotary switch device in lane locating for Overheight Vehicles
(24) when location, whippletree (31) rotation of rotary switch device (24), whippletree are hit in the superelevation part of Overheight Vehicles
(31) rotation pushes basculating arm (33) rotation, and the rotation of basculating arm (33) will switch (32) combined floodgate and connect vehicle arresting system (4)
The power supply of electromagnet (10), electromagnet (10), which is powered, retracts movable lug (21), and ground thorn device (6) loses constraint, spring B (11)
Elongation pushes up ground thorn device (6) upwards, and the left end of bar (13) rotates counterclockwise around its hinge joint and drive beam (27) and thorn cone
(12) it rotates counterclockwise, by the opening (16) of thorn cone (12) ejection shell (5), when the chamfering of beam (27) upper right side encounters backstop tongue
(7) when bottom incline (26), beam (27) pushes backstop tongue (7) retraction, spring A(8) compression, when beam (27) crosses backstop tongue
(7) after bottom incline (26), spring A(8) rebound elongation again, backstop tongue (7) are released, the updip of the backstop tongue (7) of release
Inclined-plane (25) withstands the stop surface (29) of beam (27), prevents ground thorn device (6) from rotating clockwise, pierces on the wheel tire pressure of Overheight Vehicles
After boring (12), tire is punctured, and Overheight Vehicles will stop by force.
Detailed description of the invention
1- vehicle mounted GPS guidance system, 2- license plate number identifying system, 3- laser ranging system, 4- vehicle arresting system, outside 5-
Shell, 6- thorn device, 7- backstop tongue, 8- spring A, 9- pillow iron A, 10- electromagnet, 11- spring B, 12- thorn cone, 13- bar, 14- rest the head on
Iron B, 15- slot B, 16- opening, 17- slot A, 18- Overheight Vehicles, the lane 19-, 20- bridge, 21- movable lug, 22- upright bar, 23- laser
Rangefinder, 24- rotary switch device, 25- top incline, 26- bottom incline, 27- beam, 28- bottom plate, 29- stop surface, 30- are vertical
Column, 31- whippletree, 32- switch, 33- basculating arm.
Fig. 1 is floor map of the invention.
Fig. 2 is the floor plan of vehicle arresting system.
Fig. 3 is the section drawing that the thorn cone of vehicle arresting system is not jacked up.
Fig. 4 is the section drawing that the thorn cone of vehicle arresting system is jacked up.
Fig. 5 is that each component of vehicle arresting system decomposes drawing.
Fig. 6 is the drawing of electromagnet.
Fig. 7 is the elevation of laser ranging system.
Fig. 8 is the elevation of rotary switch device.
Fig. 9 is the local drawing of rotary switch device.
Specific embodiment
Referring to Fig. 1 to Fig. 9, vehicle mounted GPS guidance system 1 is opened when vehicle driver sets out, inputs the maximum height of vehicle
Or the maximum height of loading, the two height take large values, then input destination, vehicle mounted GPS guidance system 1 show approach bridge and
The headroom in tunnel, if vehicle super-high, vehicle mounted GPS guidance system 1 alert driver's vehicle by some bridge or
Tunnel superelevation reminds driver to detour, and when Overheight Vehicles close on bridge or tunnel, alerts driver's vehicle again and has surpassed
High no through traffic, if driver drives Overheight Vehicles and is forced through, when Overheight Vehicles are travelled to license plate number identifying system 2 and are swashed
When the location of ligh-ranging system 3, the laser range finder 23 of laser ranging system 3 emits laser beam scanning to Overheight Vehicles
Superelevation part and measure laser range finder 23 at a distance from the superelevation part of Overheight Vehicles, then this distance data transmission is given
Microprocessor, microprocessor receive after the range data of the superelevation part of laser range finder 23 and Overheight Vehicles and in microprocessor
The width data in each lane of storage compares, and thus judges lane locating for the Overheight Vehicles, while license plate number identifies
System 2 identifies the license plate number of the vehicle and signal is transmitted to microprocessor, the sound in lane locating for microprocessor instruction Overheight Vehicles
Light apartment warning is rung, alerting the vehicle of the trade mark, no through traffic for superelevation, when Overheight Vehicles continue traveling to Overheight Vehicles institute
When locating the location of the rotary switch device 24 in lane, the whippletree of rotary switch device 24 is hit in the superelevation part of Overheight Vehicles
The rotation of 31 rotations, whippletree 31 pushes basculating arm 33 to rotate, and switch 32 is closed a floodgate in the rotation of basculating arm 33 connects vehicle arresting system 4
The power supply of electromagnet 10, the energization of electromagnet 10 retract movable lug 21, and ground thorn device 6 loses constraint, and ground is pierced in the elongation of spring B 11
Device 6 pushes up upwards, and the left end of bar 13 rotates counterclockwise around its hinge joint and drive beam 27 and thorn cone 12 to rotate counterclockwise, and thorn is bored
The opening 16 of 12 ejection shells 5, when the chamfering of 27 upper right side of beam encounters the bottom incline 26 of backstop tongue 7, beam 27 pushes backstop
Tongue 7 bounces back, and spring A8 compression, after beam 27 crosses bottom incline 26 of backstop tongue 7, spring A8 springs back elongation again, by backstop tongue 7
It releases, the top incline 25 of the backstop tongue 7 of release withstands the stop surface 29 of beam 27, prevents ground thorn device 6 from rotating clockwise, superelevation
On the wheel tire pressure of vehicle after thorn cone 12, tire is punctured, and Overheight Vehicles will stop by force.Need to illustrate: current GPS navigator is simultaneously
The headroom for not storing bridge perhaps tunnel can not manually enter the maximum height of vehicle (or loading), also not have
The function that the maximum height of the headroom in bridge or tunnel and vehicle (or loading) is compared and judged, the present invention
Vehicle mounted GPS guidance system 1 all have above-mentioned function；Laser ranging system 3 judges the working principle in lane locating for Overheight Vehicles
Be: the laser range finder 23 of laser ranging system 3 emits laser beam scanning to the superelevation part of Overheight Vehicles and measures laser
After rangefinder 23 is at a distance from the superelevation part of Overheight Vehicles, microprocessor will store every in the range data and microprocessor
The width data in a lane compares, and the width data is cumulative, such as: assuming that the width in each lane is 6 meters, that
First lane is 0 to 6 meter, and second lane is 6 meters to 12 meters, and third lane is 12 meters to 18 meters, if measuring the first vehicle
Road roadside is at a distance from the superelevation part of Overheight Vehicles, which can fall within the scope of the accumulation distance in some lane, thus
It may determine that lane locating for Overheight Vehicles.
Claims (1)
1. the rotary type multilane vehicle of rotary switch stops system, it is characterized in that: it is by vehicle mounted GPS guidance system (1), license plate
Number identifying system (2), laser ranging system (3), vehicle arresting system (4), rotary switch device (24) composition；Vehicle GPS is led
Boat system (1) stores the maximum height of vehicle, can also input the maximum height of cargo, while vehicle mounted GPS guidance system
(1) headroom for prestoring each bridge and tunnel is arranged on each lane of the first distance close to bridge or tunnel
License plate number identifying system (2) and laser ranging is arranged in the roadside second distance close to bridge or tunnel in vehicle arresting system (4)
System (3), the second distance are remoter than the first distance, and laser ranging system (3) is by upright bar (22), laser range finder (23)
It forms, laser range finder (23) is installed on upright bar (22) top, the height for the laser beam that laser range finder (23) issues is exactly bridge
The maximum headroom of beam or tunnel, laser range finder (23) measure Overheight Vehicles superelevation part and laser range finder (23) away from
From license plate number identifying system (2) identifies the license plate number of vehicle, and license plate number identifying system (2) and laser ranging system (3) are equipped with
Shared microprocessor, the microprocessor store the width data in each lane, the width data be it is cumulative, each
Lane is mounted on sound equipment light apartment warning；Rotary switch device (24) is by column (30), whippletree (31) and switch (32) group
At, one end of whippletree (31) with it is hinged on the top of column (30), whippletree (31) can horizontally rotate around its hinge joint, whippletree (31)
Floor height be exactly bridge or tunnel headroom, the fixed switch (32) in the top of column (30) switchs the upper end of (32)
It installs basculating arm (33), the upper end of basculating arm (33) is higher than the bottom surface of whippletree (31), and switch (32), which is blocked by power supply line with vehicle, is
Electromagnet (10) connection of system (4), rotary switch device (24) are mounted on the left side roadside of every set vehicle arresting system (4)；Vehicle
Arresting system (4) mainly include shell (5), thorn device (6), backstop tongue (7), spring A(8), pillow iron A(9), electromagnet
(10), spring B (11), pillow iron B(14), ground thorn device (6), backstop tongue (7), spring A(8), pillow iron A(9), electromagnet (10),
Spring B (11), pillow iron B(14) it is installed in shell (5), rest the head on iron A(9) and pillow iron B(14) be symmetrically arranged in shell (5)
Lower part, backstop tongue (7) and spring A(8) be mounted on pillow iron B(14) upper end and the upper right quarter in shell (5), rest the head on iron A(9)
And pillow iron B(14) between space in arrangement ground thorn device (6) and spring B (11), spring A(8) right end and shell (5) it is interior
Wall is fixed, spring A(8) left end and the right end of backstop tongue (7) fix, the left end of backstop tongue (7) have top incline (25) and under
Iron A(9 is rested the head in inclined surface (26)) left side and downside and the medial surface of shell (5) fix, pillow iron B(14) right side and
The medial surface of downside and shell (5) is fixed, rest the head on iron A(9) be provided with slot (17), electromagnet (10) be mounted in pillow iron A(9) slot
(17) in, its movable lug (21) can be retracted and be stretched out in slot (17) in the case where energization and power-off by electromagnet (10), ground thorn
Device (6) is made of thorn cone (12), beam (27), bottom plate (28), bar (13), and the lower end of thorn cone (12) and the upper end of beam (27) are solid
Fixed, the lower end of beam (27) and the upper end of bottom plate (28) are fixed, and the lower end of bottom plate (28) and the upper end of spring B (11) are fixed, spring B
(11) lower end inner wall of lower end and shell (5) is fixed, and the upper right side of beam (27) is chamfering, the lower end of beam (27) and bottom plate
(28) there is slot B(15 in the left side between upper end), the bottom righthand side of beam (27) has acclivitous stop surface (29), a left side for beam (27)
It holds and is fixed with the right end of bar (13), the left end of bar (13) and the left internal side of shell (5) are hinged, and the left end of bar (13) can be around it
Hinge joint rotates, and has opening (16) among the upper end of shell (5), and the external corner of the lower end of opening (16) is chamfering, thorn cone (12)
Opening (16) can be passed through when rotating counterclockwise, when thorn cone (12) and bar (13) do not rotate counterclockwise, electromagnet (10) is in disconnected
The movable lug (21) of electricity condition, electromagnet (10) stretches out, movable lug (21) insertion groove B(15 of stretching) in, while spring B (11) is in
Compressive state；Its working principle is that: vehicle mounted GPS guidance system (1) is opened when vehicle driver sets out, the maximum for inputting vehicle is high
Degree or the maximum height of loading, the two height takes large values, then inputs destination, and vehicle mounted GPS guidance system (1) shows approach bridge
The headroom of beam and tunnel, if vehicle super-high, vehicle mounted GPS guidance system (1) alerts driver's vehicle and passes through some bridge
Beam or tunnel superelevation remind driver to detour, and when Overheight Vehicles close on bridge or tunnel, alert driver's vehicle again
No through traffic for superelevation, if driver drives Overheight Vehicles and is forced through, identifies when Overheight Vehicles are travelled to license plate number and is
When the location of system (2) and laser ranging system (3), laser range finder (23) the transmitting laser of laser ranging system (3) is penetrated
Line scans the superelevation part to Overheight Vehicles and measures laser range finder (23) at a distance from the superelevation part of Overheight Vehicles, then
By this distance data transmission to microprocessor, microprocessor receive the superelevation part of laser range finder (23) and Overheight Vehicles away from
It compares, is thus judged locating for the Overheight Vehicles from the width data after data with each lane stored in microprocessor
Lane, while license plate number identifying system (2) identifies the license plate number of the vehicle and signal is transmitted to microprocessor, microprocessor instruction
The sound equipment light apartment warning in lane locating for Overheight Vehicles, alerting the vehicle of the trade mark, no through traffic for superelevation, works as Overheight Vehicles
When continuing to travel to the location of the rotary switch device in lane locating for Overheight Vehicles (24), the superelevation part of Overheight Vehicles is hit
Whippletree (31) rotation of rotary switch device (24) is hit, the rotation of whippletree (31) pushes basculating arm (33) rotation, and basculating arm (33) turns
The dynamic power supply that will be switched (32) combined floodgate and connect the electromagnet (10) of vehicle arresting system (4), electromagnet (10) are powered movable lug
(21) it retracts, ground thorn device (6) loses constraint, and spring B (11) elongation pushes up ground thorn device (6) upwards, the left end of bar (13)
Rotate counterclockwise and drive beam (27) and thorn cone (12) to rotate counterclockwise around its hinge joint, by thorn cone (12) ejection shell (5)
It is open (16), when the chamfering of beam (27) upper right side encounters bottom incline (26) of backstop tongue (7), beam (27) pushes backstop tongue
(7) it bounces back, spring A(8) compression, after beam (27) crosses bottom incline (26) of backstop tongue (7), spring A(8) it springs back and stretches again
It is long, backstop tongue (7) are released, the top incline (25) of the backstop tongue (7) of release withstands the stop surface (29) of beam (27), prevents ground
Thorn device (6) rotates clockwise, and on the wheel tire pressure of Overheight Vehicles after thorn cone (12), tire is punctured, and Overheight Vehicles will stop by force
Vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116769.2A CN109799767A (en) | 2019-02-13 | 2019-02-13 | The rotary type multilane vehicle of rotary switch stops system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910116769.2A CN109799767A (en) | 2019-02-13 | 2019-02-13 | The rotary type multilane vehicle of rotary switch stops system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109799767A true CN109799767A (en) | 2019-05-24 |
Family
ID=66560900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910116769.2A Withdrawn CN109799767A (en) | 2019-02-13 | 2019-02-13 | The rotary type multilane vehicle of rotary switch stops system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109799767A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965755U (en) * | 2011-02-23 | 2011-09-07 | 武汉长海高新技术有限公司 | Over-high vehicle detection alarm device |
| CN102619176A (en) * | 2012-04-18 | 2012-08-01 | 中铁大桥局集团第五工程有限公司 | Intelligent height limiting frame for road |
| CN205242306U (en) * | 2015-11-26 | 2016-05-18 | 邓中洋 | Limit for height is reported to police and intercepting device for road |
| CN107119556A (en) * | 2017-06-10 | 2017-09-01 | 郑州市市政维护工程有限公司 | A kind of multi-functional bridge seamless expansion-contraction devices and construction technology |
| CN107507458A (en) * | 2017-08-18 | 2017-12-22 | 攀枝花学院 | Intelligent vehicle-carried limit for height early warning system |
| CN108706005A (en) * | 2018-06-27 | 2018-10-26 | 苏州瑞耀三维科技有限公司 | A kind of vehicle anti-collision device based on laser ranging |
-
2019
- 2019-02-13 CN CN201910116769.2A patent/CN109799767A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965755U (en) * | 2011-02-23 | 2011-09-07 | 武汉长海高新技术有限公司 | Over-high vehicle detection alarm device |
| CN102619176A (en) * | 2012-04-18 | 2012-08-01 | 中铁大桥局集团第五工程有限公司 | Intelligent height limiting frame for road |
| CN205242306U (en) * | 2015-11-26 | 2016-05-18 | 邓中洋 | Limit for height is reported to police and intercepting device for road |
| CN107119556A (en) * | 2017-06-10 | 2017-09-01 | 郑州市市政维护工程有限公司 | A kind of multi-functional bridge seamless expansion-contraction devices and construction technology |
| CN107507458A (en) * | 2017-08-18 | 2017-12-22 | 攀枝花学院 | Intelligent vehicle-carried limit for height early warning system |
| CN108706005A (en) * | 2018-06-27 | 2018-10-26 | 苏州瑞耀三维科技有限公司 | A kind of vehicle anti-collision device based on laser ranging |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190524 |
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| WW01 | Invention patent application withdrawn after publication |