CN205943813U - Sealed switch structure - Google Patents
Sealed switch structure Download PDFInfo
- Publication number
- CN205943813U CN205943813U CN201620974112.1U CN201620974112U CN205943813U CN 205943813 U CN205943813 U CN 205943813U CN 201620974112 U CN201620974112 U CN 201620974112U CN 205943813 U CN205943813 U CN 205943813U
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- CN
- China
- Prior art keywords
- metallic button
- support
- switch structure
- movable contact
- glass
- 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- Withdrawn - After Issue
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Abstract
The utility model discloses a sealed switch structure belongs to the switch technology field, including inside insulating housing, be equipped with at least a set of bracket component in the insulating housing, the insulating housing lower extreme still is equipped with the bottom plate subassembly, and the bottom plate subassembly includes that the glass encapsulation is closed gold plate and is fixed in the glass encapsulation and close alloy wiring foot A and alloy wiring foot B among the gold plate, and glass encapsulates to close and still is equipped with insulating substrate on the gold plate, alloy wiring foot A upper end is equipped with the static contact, alloy wiring foot B upper end is equipped with the wiring soldering lug, the insulating housing surface still is covered with the metal casing, and metal casing lower extreme closes gold plate fixed connection with the glass encapsulation. This technical scheme is through the outer increase one deck metal seal casing at inside insulating housing to if interior waterproof sealing circle and outer waterproof sealing circle close gold plate in the bottom through the glass encapsulation and reliably encapsulate, improved multipolar disconnection switch's sealing performance, messenger disconnection switch can be at oil, acid, alkali, reliably use in reaching high altitude environment under water.
Description
Technical field
This utility model belongs to switching technique field, be related to a kind of can waterproof, explosion-proof, electromagnetism interference, can be low in high-altitude
The switch that air pressure environment uses, is specifically related to a kind of enclosed switch structure.
Background technology
With the demand of electronics miniaturization, one kind can bear high current, the button shank type metal shell sealing of small size
Toggle switch, exists more next in fields such as electronics, electrical equipment, communication, medical apparatus and instruments, weapons, ship, space flight, aviation, railway traffics
Bigger use demand.
At present, China seen button handle switch typically can only bear less than 20 amperes of small current on the market, can in addition
Waterproof, explosion-proof, electromagnetism interference metal shell sealing toggle switch are just fewer, simultaneously as cabinet toggle switch,
It is impossible to reach the technical requirements of long term seal after the expansion in aging, oil pollution environment after standing high/low temperature.And communication,
In the special industries such as medical treatment, space flight, aviation, button handle switch electricity to periphery electronic equipment and human body during connection and use
Magnetic disturbance and radiation, have had a strong impact on accuracy and the personal safety of receiving and transmitting signal, particularly in fields such as space flight, aviations.
Due to the radiation of electronic equipment, the difficulty of anti-detective also greatly increases, fire-fighting and the larger ring of the inflammable granule of dust
When being switched on or switched off power supply in border, non-tight and lower grade plastic seal toggle switch have been difficult to meet use requirement.
Utility model content
In order to solve the above problems, this utility model provides a kind of enclosed switch structure, thus reach waterproof, explosion-proof,
Electromagnetism interference, the effect that can use under the hypobaric of high-altitude.
This utility model is achieved by following technical solution.
A kind of enclosed switch structure, including built-in electrical insulation housing, is provided with least one set carriage assembly in described insulation shell,
Described carriage assembly includes support first and support second and is connected to the yoke between support first and support second；
Described insulation shell lower end is additionally provided with bottom deck assembly, and described bottom deck assembly includes glass-encapsulated alloy sheets and fixation
Alloy wiring pin A in glass-encapsulated alloy sheets and alloy wiring pin B, described glass-encapsulated alloy sheets are additionally provided with insulation bottom
Plate, described alloy wiring pin A upper end is provided with static contact, and described alloy wiring pin B upper end is provided with wiring weld tabs；
It is provided with toggle assembly, described toggle assembly includes absolutely between described support first and support second
Edge shifting block, U-shaped connection sheet, locking plate, connection sheet, movable contact spring, U-shaped connection sheet is passed through with locking plate even in described insulation shifting block lower end
Connect, described connection sheet one end is connected with locking plate, and the other end is connected with movable contact spring, described locking plate side is additionally provided with lock shaft group
Part, described movable contact spring one end is provided with movable contact, and the other end is connected with wiring weld tabs by annealed copper strand wire, and described movable contact is located at quiet
Above contact；
Described insulation shell upper end is additionally provided with metallic button handle, and described toggle assembly passes through insulate shifting block and metal
Button handle lower end connects.
Described insulation shell outer surface is also covered with metal shell, and metal shell lower end is fixing with glass-encapsulated alloy sheets even
Connect.
The other end of described movable contact spring has oval groove, and movable contact spring is hinged in rotating shaft by oval groove, and rotating shaft is provided with
The main torsion spring of contact pressure, contact pressure main torsion spring two ends are connected with movable contact spring and support second respectively.
Described yoke passes through both sides of the edge rivet welding between support first and support second.
Described metal shell upper end is additionally provided with metallic button sleeve pipe, the sphere in metallic button handle stage casing for the metallic button sleeve pipe box
On, lower end is fixedly connected with metal shell.
Described metallic button handle stage casing bulbous protrusion is partly middle to pass through button arbor pin telescopic joint with metallic button handle, metallic button
Handle can be freely rotatable around button arbor pin.
It is provided with inner waterproofing sealing ring between described metallic button handle stage casing sphere and metallic button sleeve inside pipe wall upper end.
On described metallic button sleeve pipe leave from office terrace, outer waterproof sealing packing ring is installed, and above outer waterproof sealing packing ring
Space washer is installed successively and fixing nut is installed.
Described metal shell upper end-face edge is additionally provided with clamping nut, and clamping nut is embedded in built-in electrical insulation housing, and with
Metal shell is fixedly connected, and clamping nut is provided with housing screw, is provided with compression close between housing screw and clamping nut
Seal.
Be additionally provided with shank of the key set on described metallic button handle, shank of the key puts and is also cased with shank of the key cap, shank of the key set with metallic button handle it
Between be provided with shank of the key stage clip.
The beneficial effects of the utility model are：
A kind of enclosed switch structure described in the utility model, increases by one layer of gold by the outer surface of insulation shell internally
Belong to seal casinghousing, and set inner waterproofing sealing ring and outer waterproof grommet, carry out reliable envelope in bottom by glass-encapsulated alloy sheets
Dress, improves the sealing property of multipole section breaker, enables section breaker in oil, acid, alkali, reliably makes under water and in high altitude environment
With.
Meanwhile, by the synchronization disconnection of internal multipole section breaker and the design of single button handle operation it is ensured that multipole is divided
Disconnected switch connection synchronization and reliability, improve the convenience of multipole section breaker list button handle operation.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the side cutaway view of Fig. 1 in this utility model；
Fig. 3 is the structural representation of toggle assembly in this utility model；
Fig. 4 is the structural representation of this utility model medium-height trestle assembly；
Fig. 5 is the side view of Fig. 4 in this utility model；
Fig. 6 is the structural representation of bottom deck assembly in this utility model；
Fig. 7 is circuit theory diagrams of the present utility model；
Fig. 8 is circuit diagram of the present utility model.
In figure：1- metal shell, 2- built-in electrical insulation housing, 3- insulation shifting block, 4-U shape connection sheet, 5- locking plate, 6- connects
Piece, 7- movable contact spring, 8- movable contact, 9- static contact, 10- insulating base, 11- glass-encapsulated alloy sheets, 12- alloy wiring pin A,
The main torsion spring of 13- contact pressure, 14- alloy wiring pin B, 15- wiring weld tabs, 16- support second, 17- yoke, 18- locks shaft assembly,
19- support first, 20- metallic button sleeve pipe, 21- clamping nut, 22- compresses sealing ring, 23- housing screw, the outer waterproof sealing of 24-
Packing ring, 25- space washer, 26- break-make instruction nameplate, 27- metallic button handle, 28- installation fixing nut, 29- inner waterproofing sealing ring,
30- shank of the key set, 31- shank of the key stage clip, 32- shank of the key cap, 33- multipole synchronization couple axle, 34- electrode insulation dividing plate, 35- button arbor
Pin, 36- annealed copper strand wire.
Specific embodiment
Further describe the technical solution of the utility model below in conjunction with the accompanying drawings, but claimed scope is not limited to
Described.
As shown in Figure 1, Figure 2, shown in Fig. 4, Fig. 5, a kind of enclosed switch structure described in the utility model, including built-in electrical insulation shell
Body 2, is provided with least one set carriage assembly in described insulation shell 2, described carriage assembly include support first 19 and support second 16 with
And it is connected to the yoke 17 between support first 19 and support second 16；
Described insulation shell 2 lower end is additionally provided with bottom deck assembly, as shown in fig. 6, described bottom deck assembly includes glass-encapsulated closing
Golden plate 11 and be fixed on the alloy wiring pin A12 in glass-encapsulated alloy sheets 11 and alloy wiring pin B14, described glass-encapsulated
Insulating base 10 is additionally provided with alloy sheets 11, described alloy wiring pin A12 upper end is provided with static contact 9, described alloy wiring pin B14
Upper end is provided with wiring weld tabs 15；
It is provided with toggle assembly between described support first 19 and support second 16, as shown in figure 3, described crank connecting link
Mechanism assembly includes insulate shifting block 3, U-shaped connection sheet 4, locking plate 5, connection sheet 6, movable contact spring 7, and described insulation shifting block 3 lower end leads to
Cross U-shaped connection sheet 4 to be connected with locking plate 5, described connection sheet 6 one end is connected with locking plate 5, and the other end is connected with movable contact spring 7, institute
State locking plate 5 side and be additionally provided with locking shaft assembly 18, described movable contact spring 7 one end is provided with movable contact 8, and the other end passes through annealed copper strand wire
36 are connected with wiring weld tabs 15, and described movable contact 8 is located above static contact 9；
As shown in figure 1, described insulation shell 2 upper end is additionally provided with metallic button handle 27, described toggle assembly passes through
Insulation shifting block 3 is connected with metallic button handle 27 lower end.
Described insulation shell 2 outer surface is also covered with metal shell 1, and metal shell 1 lower end is solid with glass-encapsulated alloy sheets 11
Fixed connection.
The other end of described movable contact spring 7 has oval groove, and movable contact spring 7 is hinged on connecting bracket first 19 and is propped up by oval groove
In the rotating shaft of frame second 16, rotating shaft is provided with the main torsion spring of contact pressure 13, the main torsion spring of contact pressure 13 two ends respectively with movable contact spring 7 and
Support second 16 connects.
As shown in Figure 4, Figure 5, described yoke 17 passes through both sides of the edge rivet welding between support first 19 and support second 16.
As shown in figure 1, described metal shell 1 upper end is additionally provided with metallic button sleeve pipe 20, metallic button sleeve pipe 20 is enclosed within gold
Belong on the sphere in button handle 27 stage casing, lower end is fixedly connected with metal shell 1；Described metallic button handle 27 stage casing bulbous protrusion partly in
Between be connected through button arbor pin 35 with metallic button sleeve pipe 20, metallic button handle 27 can be freely rotatable around button arbor pin 35；Described gold
Belong to and be provided with inner waterproofing sealing ring 29 between button handle 27 stage casing sphere and metallic button sleeve pipe 20 inwall upper end.
As shown in figure 1, being provided with outer waterproof sealing packing ring 24 on described metallic button sleeve pipe 20 leave from office terrace, and prevent outside
Space washer 25 is installed above water-stop packing ring 24 successively and fixing nut 28 is installed；Described space washer 25 fixes spiral shell with installing
It is additionally provided with break-make instruction nameplate 26 between female 28.
As shown in figure 1, described metal shell 1 upper end-face edge is additionally provided with clamping nut 21, clamping nut 21 is embedded into inside
In insulation shell 2, and be fixedly connected with metal shell 1, clamping nut 21 be provided with housing screw 23, housing screw 23 with
It is provided with compression sealing ring 22 between clamping nut 21.
Be additionally provided with described metallic button handle 27 shank of the key set 30, shank of the key set 30 on be also cased with shank of the key cap 32, shank of the key set 30 with
It is provided with shank of the key stage clip 31 between metallic button handle 27.
As shown in Fig. 2 being provided with electrode insulation dividing plate 34 between described adjacent two stands assembly, to ensure each pole of section breaker
Between dielectric strength.
During assembling, first assemble metal base plate black box, connect with alloy by the glass-encapsulated alloy sheets 11 having fairlead
Stitch A12, alloy wiring pin B14 adopt glass insulation medium high temperature sintering fixing seal, formed a pairs of posts, can directly and
External power source connects；Then weld static contact 9 on the top of alloy wiring pin A12, install on the top of alloy wiring pin B14 and connect
Wire bonding piece 15, wiring weld tabs 15 and alloy wiring pin B14 are riveting or weld.Glass-encapsulated alloy sheets 11 have one to three pole bottoms
Glass-encapsulated alloy sheets 11 are carried out plated surface painting after wiring weld tabs 15 installation by plate.According to section breaker number of poles during assembling
Require, in the glass-encapsulated alloy sheets 11 of corresponding number of poles, one to three insulating base of horizontal drain 10.
Then assemble toggle assembly, will be hinged with U-shaped connection sheet 4 one end for the small end of insulation shifting block 3, by U-shaped
Connection sheet 4 other end is hinged with locking plate 5, and be articulated and connected on locking plate 5 piece 6, the other end of connection sheet 6 again with movable contact spring 7
Stage casing is hinged, finally installs locking shaft assembly 18 between connection sheet 6 and locking plate 5, in the installation of movable contact spring 7 and connection sheet 6
One torsion spring is installed on axle, the two ends of torsion spring snap into the right side of connection sheet 6 and the upper end of movable contact spring 7 respectively, obtain crank connecting link machine
Structure assembly.
Then assemble cartridge assemblies, by parallel for support first 19 and support second 16 thirty years of age relatively, by yoke 17 both sides respectively with
Support first 19 and support second 16 rivet；By the toggle assembling assembly be installed to support first 19 and support second 16 it
Between, obtain complete cartridge assemblies.
The cartridge assemblies that location and installation one to three group has assembled on insulating base 10, movable contact spring 7 aft end is passed through
Annealed copper strand wire 36 is connected with wiring weld tabs 15, loads onto contact in the rotating shaft of movable oval groove being horizontally through movable contact spring 7
The contacts-side-down of the main torsion spring of pressure 13, main torsion spring 13 one end and movable contact spring 7, the other end is fixed on support first 19 or support second 16
On.
By multipole synchronization couple axle 33 by metallic button handle 27 and insulation shifting block 3 after the completion of the cartridge assemblies assembling and setting of each pole
Hinged, electrode insulation dividing plate 34 is installed, then built-in electrical insulation housing 2 on shroud from top to bottom, make built-in electrical insulation housing 2 lower end with
Insulating base 10 is connected.
Then assemble metal shell black box, if a pole section breaker, then open a metal at metal shell 1 top
Button sleeve pipe 20 installing hole and installation hold-doun nut 21 installing hole, if multipole section breaker, then at metal shell 1 top
Open metallic button sleeve pipe 20 installing hole and two installation hold-doun nut 21 installing holes.By metal shell 1 and metallic button sleeve
Pipe 20, two is installed hold-doun nut 21 and is sealingly fastened on metal shell 1 using charging filling welding procedure, table after the completion of welding
Face plating applies.
Then metal shell black box is connected with built-in electrical insulation housing 2, before assembling, in metallic button sleeve pipe 20 endoporus
Inner waterproofing seal washer 29 is first put in upper end, crosses metallic button sleeve pipe 20, metallic button handle 27 with button arbor pin 35, by metal
Button handle 27 is riveted in metallic button sleeve pipe 20, and metallic button handle 27 flexibly can swing left and right in metallic button sleeve pipe 20.
The metal shell black box assembling is set to insulation shell from top to bottom along the outside tight note edge of insulation shell 2
On 2, until the lower limb of metal shell 1 exceedes the lower edge of insulation shell 2；Pull metallic button handle 27, feel tests disjunction
The action of each cartridge assemblies of switch internal and break-make feel, after the completion of feel test, are opened using the detection disjunction of low resistance detector
Close switches on and off situation, adopts laser fusion welding or charging filling weldering welding procedure, by metal shell 1 and glass after test passes
Glass encapsulation alloy bottom plate 11 joint welds together it is ensured that weld strength and sealing property.
After the completion of above each operation, metallic button sleeve pipe 20 is loaded onto outer waterproof sealing packing ring 24, space washer 25,
Break-make indicates nameplate 26, installs fixing nut 28；Compression sealing ring 22 and housing screw 23 are installed on clamping nut 21；In gold
Belong to and the adnexaes such as shank of the key set 30, shank of the key stage clip 31, backing pin and shank of the key cap 32 are installed on button handle 27 bar, complete to assemble, submit detection, bag to
Load storehouse.
Embodiment
As shown in Fig. 1, Fig. 7, Fig. 8, during work, pull metallic button handle 27 to the left, metallic button handle 27 is around 35 turns of button arbor pin
Dynamic, button arbor pin 35 lower end drives toggle component operation, and insulate shifting block 3 clockwise oscillation, and insulation shifting block 3 passes through U
Shape connection sheet 4 affects locking plate 5 to be moved to the left, connection sheet 6 counter-clockwise swing, is simultaneously connected with piece 6 lower end and pushes, makes movable contact spring 7
On movable contact 8 move downward, connect with the static contact 9 on alloy wiring pin A12 top, external circuit turn on, and by locking
Shaft assembly 18 locks the position of toggle；It is ensured that movable contact 8 under torsion spring pressure between connection sheet 6 and movable contact spring 7
Contact good and stable with static contact 9.
Pull metallic button handle 27 to the left, metallic button handle 27 rotates around button arbor pin 35, button arbor pin 35 lower end drives crank
Linkage member resets, and locking shaft assembly 18 unlocks, and connection sheet 6 lower end is lifted, and simultaneously under 13 resilient force, makes
Movable contact 8 end of contact 7 is rotated up, and disconnects with the static contact 9 on alloy wiring pin A12 top, and external power source disconnects.
The technical program is a kind of brand-new metal shell sealing structure, is different from the high current of traditional button handle switch structure
Section breaker, current range, from 0.5A～40A, covers common equipment current range in low voltage electrical apparatus industry, and applied voltage is covered
The 50Hz 220V phase/civilian power supply of 380V line, 400Hz 145V phase/250V line Aeronautics and Astronautics, ship power supply and 125V and following
DC source, metal-back enclosed switch number of poles has a pole, the two poles of the earth, three poles.Its button handle structure is divided into anti-misoperation locking-type and non-
Locking-type, to meet the use requirement of different field.
Claims (9)
1. a kind of enclosed switch structure, including built-in electrical insulation housing (2) it is characterised in that：Be provided with described insulation shell (2) to
A few pack support assembly, described carriage assembly includes support first (19) and support second (16) and is connected to support first (19) and props up
Yoke (17) between frame second (16)；
Described insulation shell (2) lower end is additionally provided with bottom deck assembly, described bottom deck assembly include glass-encapsulated alloy sheets (11) and
It is fixed on alloy wiring pin A (12) in glass-encapsulated alloy sheets (11) and alloy wiring pin B (14), described glass-encapsulated alloy
Insulating base (10) is additionally provided with plate (11), described alloy wiring pin A (12) upper end is provided with static contact (9), described alloy wiring
Foot B (14) upper end is provided with wiring weld tabs (15)；
It is provided with toggle assembly, described toggle assembly bag between described support first (19) and support second (16)
Include insulation shifting block (3), U-shaped connection sheet (4), locking plate (5), connection sheet (6), movable contact spring (7), described insulation shifting block (3) lower end
It is connected with locking plate (5) by U-shaped connection sheet (4), described connection sheet (6) one end is connected with locking plate (5), the other end is touched with dynamic
Piece (7) connects, and described locking plate (5) side is additionally provided with locking shaft assembly (18), and described movable contact spring (7) one end is provided with movable contact
(8), the other end is connected with wiring weld tabs (15) by annealed copper strand wire (36), and described movable contact (8) is located above static contact (9)；
Described insulation shell (2) upper end is additionally provided with metallic button handle (27), and described toggle assembly passes through the shifting block (3) that insulate
It is connected with metallic button handle (27) lower end；
Described insulation shell (2) outer surface is also covered with metal shell (1), metal shell (1) lower end and glass-encapsulated alloy sheets
(11) it is fixedly connected.
2. a kind of enclosed switch structure according to claim 1 it is characterised in that：The other end of described movable contact spring (7) is opened
There is oval groove, movable contact spring (7) is hinged in rotating shaft by oval groove, rotating shaft is provided with the main torsion spring of contact pressure (13), contact pressure
Torsion spring (13) two ends of advocating are connected with movable contact spring (7) and support second (16) respectively.
3. a kind of enclosed switch structure according to claim 1 it is characterised in that：Described yoke (17) passes through both sides of the edge
Rivet welding is between support first (19) and support second (16).
4. a kind of enclosed switch structure according to claim 1 it is characterised in that：Described metal shell (1) upper end also sets
There is metallic button sleeve pipe (20), metallic button sleeve pipe (20) is enclosed within the sphere in metallic button handle (27) stage casing, lower end and metal-back
Body (1) is fixedly connected.
5. a kind of enclosed switch structure according to claim 1 it is characterised in that：Described metallic button handle (27) stage casing is spherical
It is connected through button arbor pin (35) with metallic button sleeve pipe (20) in the middle of jut, metallic button handle (27) can be around button arbor pin
(35) freely rotatable.
6. a kind of enclosed switch structure according to claim 1 it is characterised in that：Described metallic button handle (27) stage casing sphere
And metallic button is provided with inner waterproofing sealing ring (29) between sleeve pipe (20) inwall upper end.
7. a kind of enclosed switch structure according to claim 4 it is characterised in that：Described metallic button sleeve pipe (20) is left office
Outer waterproof sealing packing ring (24) is provided with terrace, and above outer waterproof sealing packing ring (24), space washer (25) is installed successively
With installation fixing nut (28).
8. a kind of enclosed switch structure according to claim 1 it is characterised in that：Described metal shell (1) upper end-face edge
It is additionally provided with clamping nut (21), clamping nut (21) is embedded in built-in electrical insulation housing (2), and fix even with metal shell (1)
Connect, clamping nut (21) is provided with housing screw (23), between housing screw (23) and clamping nut (21), be provided with compression
Sealing ring (22).
9. a kind of enclosed switch structure according to claim 1 it is characterised in that：It is additionally provided with described metallic button handle (27)
Shank of the key set (30), shank of the key set (30) is also cased with shank of the key cap (32), is provided with lock between shank of the key set (30) and metallic button handle (27)
Handle stage clip (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974112.1U CN205943813U (en) | 2016-08-29 | 2016-08-29 | Sealed switch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974112.1U CN205943813U (en) | 2016-08-29 | 2016-08-29 | Sealed switch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205943813U true CN205943813U (en) | 2017-02-08 |
Family
ID=57954296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620974112.1U Withdrawn - After Issue CN205943813U (en) | 2016-08-29 | 2016-08-29 | Sealed switch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205943813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121546A (en) * | 2021-11-25 | 2022-03-01 | 国网重庆市电力公司电力科学研究院 | Device for monitoring position of switch moving contact through optical fiber and monitoring method thereof |
-
2016
- 2016-08-29 CN CN201620974112.1U patent/CN205943813U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114121546A (en) * | 2021-11-25 | 2022-03-01 | 国网重庆市电力公司电力科学研究院 | Device for monitoring position of switch moving contact through optical fiber and monitoring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170208 Effective date of abandoning: 20181127 |