CN209631800U - A kind of refuse disposal installation - Google Patents
A kind of refuse disposal installation Download PDFInfo
- Publication number
- CN209631800U CN209631800U CN201920329191.4U CN201920329191U CN209631800U CN 209631800 U CN209631800 U CN 209631800U CN 201920329191 U CN201920329191 U CN 201920329191U CN 209631800 U CN209631800 U CN 209631800U
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- CN
- China
- Prior art keywords
- reinforcing bar
- shaft
- crushing
- screening
- fixed
- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Crushing And Grinding (AREA)
Abstract
Utility model discloses a kind of refuse disposal installation, including bottom plate, and the bottom plate is equipped with crushing chamber, reinforcing bar split tunnel, reinforcing bar recovery room, screening mechanism；Dynamic crushing shell and quiet crushing shell are equipped in crushing chamber；The inside top surface of reinforcing bar split tunnel is fixed with two bearing blocks, shaft is equipped in two bearing blocks, shaft is connected with driving mechanism, the overbending direction that several bending parts and adjacent bend portion are equipped at intervals in shaft is opposite, the outer turning set of bending part is equipped with sleeve, pressing plate is fixedly connected on the sleeve, the pressing plate is equipped with cutter；It is equipped with screening roller in reinforcing bar recovery room, the permanent magnet of arc is equipped in screening roller, the bottom of reinforcing bar recovery room is equipped with concrete shaft and reinforcing bar channel.The utility model realizes the resource utilization of building waste, prevents the pollution of the environment, and avoids security risk caused by building waste.
Description
Technical field
The utility model relates to garbage reclamation processing technology field more particularly to a kind of refuse disposal installations.
Background technique
As the heating and country of real-estate market increase the investment to infrastructure construction, a large amount of Old buildings and original
There is building to be removed, produces a large amount of building waste.Many wastes in building waste are sorted, reject or crush after,
It can be used as regenerated resources re-using, such as steel scrap muscle, waste iron wire, waste electric wire and various steel scrap accessory metals mostly,
And the waste materials such as brick, stone, concrete are after crushing, can be processed into new construction material.However, current China building waste
Main processing ways are landfills and stack that practical construction refuse resource is utilized less than 1%, not only waste a large amount of resource,
And due to the non-biodegradable of building waste, a large amount of building waste will nibble our natively most valuable soils
Resource becomes the new hidden danger of social development.Therefore the recovery processing of building waste becomes a kind of new development trend.It is existing to build
Building refuse processing unit is when being crushed building waste, usual only, broken building rubbish primary to construction waste crushing
Still remain the building waste of bulk in rubbish, and presence processing is not thorough, processing speed is slow, reinforcing bar and concrete separate not
Thoroughly lead to problems such as part reinforcing bar that can not recycle.
Utility model content
In order to solve the above-mentioned prior art problems, the utility model provides a kind of refuse disposal installation.
The working principle of the utility model are as follows: a kind of refuse disposal installation, including bottom plate, on the bottom plate from top to bottom according to
It is secondary to be equipped with crushing chamber, reinforcing bar split tunnel, reinforcing bar recovery room, screening mechanism；
The top of the crushing chamber is equipped with feed inlet, and dynamic crushing shell and quiet crushing shell are equipped in crushing chamber, move crushing shell and
Quiet crushing shell inclination is symmetrically set in the lower section of feed inlet, and top and the crushing chamber top inner wall for moving crushing shell are hinged, moves crushing shell
Bottom end is hinged with broken cylinder far from the side of quiet crushing shell, and broken cylinder is fixed in broken chamber interior walls, and quiet crushing shell is fixed
In broken chamber interior walls；
The reinforcing bar split tunnel is obliquely installed, be equipped at the top of reinforcing bar split tunnel the import being connected to crushing chamber bottom and
Its bottom is equipped with outlet, and the inside top surface of reinforcing bar split tunnel is fixed with two bearing blocks, runs through in two bearing blocks and be equipped with
Shaft, the shaft are connected with driving mechanism, the overbending direction of several bending parts and adjacent bend portion are equipped at intervals in shaft
On the contrary, the outer turning set of bending part is equipped with sleeve, pressing plate is fixedly connected on the sleeve, the pressing plate is equipped with cutter；
The top side of the reinforcing bar recovery room is equipped with blanking channel, the outlet of the blanking channel and reinforcing bar split tunnel
It is connected to, screening roller is equipped in reinforcing bar recovery room, the screening roller is set to the interior middle part of reinforcing bar recovery room and is located at blanking channel
Side, the both ends for screening roller are rotatably connected on the inner wall of reinforcing bar recovery room, screen in roller close to the one of blanking channel
Side is equipped with the permanent magnet of arc, and the both ends of the permanent magnet are fixed on the inner wall of reinforcing bar recovery room, the bottom of reinforcing bar recovery room
Equipped with concrete shaft and reinforcing bar channel, the concrete shaft is located at screening roller close to the side of blanking channel, the steel
Muscle channel is located at screening side of the roller far from blanking channel, and concrete shaft and reinforcing bar channel are separated by inverted V type partition,
It is equipped with breaker roll in the concrete shaft and its bottom is equipped with concrete outlet；
The screening mechanism is set to below concrete outlet.
Preferably, the lower section of crushing shell is equipped with several baffles in crushing chamber, several baffles are spaced setting from top to bottom,
Baffle is obliquely installed and the inclined direction of two neighboring baffle is on the contrary, baffle is fixed on the inner wall of crushing chamber.
Preferably, it moves on crushing shell and quiet crushing shell and is equipped with crushing teeth.
Preferably, the driving mechanism includes rotating shaft electric motor, first bevel gear, second bevel gear；The rotating shaft electric motor is solid
It is scheduled on reinforcing bar split tunnel, first bevel gear is fixed on the output shaft of rotating shaft electric motor, second bevel gear and first bevel gear
It engages and is fixed on the outside of shaft.
Preferably, the screening mechanism includes particle screening slot, and the particle screening slot is obliquely installed, particle screening slot
Highest portion is set to the underface of concrete outlet, is equipped with sieve in particle screening slot, particle screening slot is divided by the sieve
Upper layer and lower layer, upper layer are coarse aggregate layer, and lower layer is fine aggregate layer, and coarse aggregate layer is exported equipped with coarse aggregate, and fine aggregate layer is equipped with thin
Aggregate outlet, coarse aggregate outlet and fine aggregate outlet are respectively arranged on the two sides of particle screening slot lowest part；The two of particle screening slot
Side vertical sliding is set on support frame, and the bottom of particle screening slot is fixed with vibrating air cylinder, support frame as described above and vibrating air cylinder
It is fixed on bottom plate.
The working principle of the utility model are as follows: building waste enters crushing chamber from feed inlet, is crushed the piston rod of cylinder not
It shrinks and stretches out disconnectedly, to make crushing shell constantly swing and the building waste for patting process is crushed it.It is dynamic broken
It is equipped with crushing teeth on slashings and quiet crushing shell, preliminary separation can be carried out to reinforcing bar and concrete.Building waste is broken
Interior is fractured into fritter, falls on baffle, and falls on baffle.Building waste is tortuous in multiple baffles to fall, under
Change the direction of motion during falling constantly to gradually scatter, avoids it and blocked in reinforcing bar split tunnel, and have
It is adequately separated conducive to it in reinforcing bar split tunnel.After building waste enters reinforcing bar split tunnel, shaft is in driving mechanism
Drive under rotate, the pressing plate of bending part is constantly increased, is fallen, so that cutter cut the building waste of process
It cuts, the concrete wrapped up outside reinforcing bar is cut off.Adjacent bend portion overbending direction is on the contrary, can reach the effect that adequately cutting is isolated
Fruit.Reinforcing bar and concrete through blanking channel enter reinforcing bar recovery room after being separated.Screening roller constantly rotates, in building waste
The metals such as reinforcing bar, iron wire and steel scrap part accessory, the magneticaction by permanent magnet is adsorbed onto the outer wall of screening roller, and with
Screening roller rotation.When screening roller turns to the side far from permanent magnet, permanent magnet weakens the magnetic force of reinforcing bar, reinforcing bar
The outer wall for being detached from screening roller falls into reinforcing bar channel and is recovered.And the concrete, brick, stone etc. in building waste then fall into concrete
Channel enters in particle screening slot after the second-time breakage of breaker roll.The piston rod of vibrating air cylinder is constantly extended, is shunk, and is made
Particle screening slot constantly does the reciprocating motion of vertical direction, to vibrate, the concrete aligned in the inner is sieved.
Short grained concrete enters fine aggregate layer by sieve, and exports and be discharged from fine aggregate.The concrete of bulky grain stays in sieve
The coarse aggregate layer on upper layer, and export and be discharged from coarse aggregate.The aggregate mixture that screening mechanism obtains after handling building waste shines
It is divided into the recycled aggregate of different-grain diameter, can be used for producing the concrete, mortar or preparation such as building block, wall of respective strengths grade
The building materials such as plate, floor tile, have realize building waste minimizing, recycling, save natural resources, preserve the ecological environment etc. it is excellent
Gesture, and economic value with higher.
The utility model is sufficient by carrying out to construction waste crushing, separation, screening process to resource therein
It recycles, realizes the resource utilization of building waste, prevent the pollution of the environment, it is hidden to avoid safety caused by building waste
Suffer from.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is enlarged diagram at A in Fig. 1.
Fig. 3 is the top view of particle screening slot in the utility model.
In figure: 1 bottom plate, 2 crushing chambers, 3 reinforcing bar split tunnels, 4 reinforcing bar recovery rooms, 5 feed inlets, 6 dynamic crushing shells, 7 quiet broken
Slashings, 8 broken cylinders, 9 bearing blocks, 10 shafts, 11 bending parts, 12 sleeves, 13 pressing plates, 14 cutter, 15 blanking channels, 16 sieves
Select roller, 17 permanent magnets, 18 concrete shafts, 19 reinforcing bar channels, 20 inverted V type partitions, 21 breaker rolls, 22 vibrating air cylinders, 23 gears
Plate, 24 crushing teeths, 25 rotating shaft electric motors, 26 first bevel gears, 27 second bevel gears, 28 particle screening slots, 29 sieves, 30 coarse aggregates
Layer, the outlet of 31 fine aggregate layers, 32 coarse aggregates, the outlet of 33 fine aggregates, 34 support frames, 35.
Specific embodiment
The embodiments of the present invention are further illustrated with reference to the accompanying drawing.
Referring to Fig. 1-3, a kind of refuse disposal installation, including bottom plate 1 is successively arranged on the bottom plate 1 broken from top to bottom
Room 2, reinforcing bar split tunnel 3, reinforcing bar recovery room 4, screening mechanism.Crushing chamber 2, reinforcing bar split tunnel 3, reinforcing bar recovery room 4 are logical
Rack is crossed to be fixed on bottom plate 1.
The top of the crushing chamber 2 is equipped with feed inlet 5, and dynamic crushing shell 6 and quiet crushing shell 7 are equipped in crushing chamber 2, moves broken
Plate 6 and quiet crushing shell 7 tilt the lower section for being symmetrically set in feed inlet 5, move the distance between crushing shell and quiet crushing shell from top to bottom
It is sequentially reduced.The top of dynamic crushing shell 6 and 2 top inner wall of crushing chamber are hinged, move one of 6 bottom end of crushing shell far from quiet crushing shell 7
Side is hinged with broken cylinder 8, and broken cylinder 8 is fixed on 2 inner wall of crushing chamber, and quiet crushing shell 8 is fixed on 2 inner wall of crushing chamber.
Building waste enters crushing chamber 2 from feed inlet 5, and the piston rod of broken cylinder 8 constantly shrinks and stretches out, to make crushing shell
6 constantly swing, and the building waste for patting process is crushed it.Since building waste is gradually broken in dropping process
At fritter, therefore this structure of crushing chamber 2, building waste can be effectively crushed.When the building waste of fritter exists
The lower end of two crushing shells has little time discharge and cumulative when leading to blocking, can make to break by controlling broken cylinder 8
The distance between slashings 6 and quiet crushing shell 7 become larger to dredge crushing chamber 2.
The reinforcing bar split tunnel 3 is obliquely installed, at the top of reinforcing bar split tunnel 3 be equipped be connected to 2 bottom of crushing chamber into
Mouth and its bottom, which are equipped with, to be exported, and the inside top surface of reinforcing bar split tunnel 3 is fixed with two bearing blocks 9, passes through in two bearing blocks 9
It is equipped with shaft 10, the shaft 10 is connected with driving mechanism, several bending parts 11 and adjacent curved are equipped at intervals in shaft 10
The overbending direction of folding part 11 is fixedly connected with pressing plate 13 on the sleeve 12 on the contrary, the outer turning set of bending part 11 is equipped with sleeve 12,
The pressing plate 13 is equipped with cutter 14.
The top side of the reinforcing bar recovery room 4 is equipped with blanking channel 15, the blanking channel 15 and reinforcing bar split tunnel 3
Outlet.Screening roller 16 is equipped in reinforcing bar recovery room 4, in the middle part of the screening roller 16 is set in reinforcing bar recovery room 4 and
Positioned at the side of blanking channel 15.The both ends of screening roller 16 are rotatably connected on the inner wall of reinforcing bar recovery room 4, in the present embodiment
Screening roller, which is connected with, rolls motor (not shown).It screens in roller 16 and is equipped with arc close to the side of blanking channel 15
The both ends of permanent magnet 17, the permanent magnet 17 are fixed on the inner wall of reinforcing bar recovery room 4.The bottom of reinforcing bar recovery room 4 is equipped with mixed
Solidifying soil channel 18 and reinforcing bar channel 19, the concrete shaft are located at screening roller 16 close to the side of blanking channel 15.It is described
Reinforcing bar channel 19 is located at screening side of the roller 16 far from blanking channel 15, and concrete shaft 18 and reinforcing bar channel 19 are by falling V
Type partition 20 separates, and breaker roll 21 is equipped in the concrete shaft 18 and its bottom is equipped with concrete outlet.The present embodiment
In, there are two breaker rolls, respectively active breaker roll and driven breaker roll, and active breaker roll is connected with broken roller motor, driven
Breaker roll passes through chain or belt and active breaker roll transmission connection (not shown).
The screening mechanism is set to below concrete outlet.
The lower section of crushing shell 6 is equipped with 2 baffles, 23,2 baffles 23 and is spaced setting, baffle 23 from top to bottom in crushing chamber 2
It is obliquely installed and the inclined direction of two neighboring baffle 23 is on the contrary, baffle 23 is fixed on the inner wall of crushing chamber 2.Baffle can prolong
The movement travel of long broken building waste, disperses it gradually when falling on baffle, is conducive to it in subsequent reinforcing bar point
It is separated from the reinforcing bar in channel and avoids it and resulted in blockage in reinforcing bar split tunnel.
Crushing teeth 24 is equipped on dynamic crushing shell 6 and quiet crushing shell 7.
The driving mechanism includes rotating shaft electric motor 25, first bevel gear 26, second bevel gear 27.The rotating shaft electric motor 25 is solid
It is scheduled on reinforcing bar split tunnel 3, first bevel gear 26 is fixed on the output shaft of rotating shaft electric motor 25, second bevel gear 28 and first
Bevel gear 26 engages and is fixed on 10 outside of shaft.
The screening mechanism includes particle screening slot 28, and the particle screening slot 28 is obliquely installed, particle screening slot 28
Highest portion is set to the underface of concrete outlet, is equipped with sieve 29 in particle screening slot 28.The sieve is by particle screening slot 28
It is divided into upper layer and lower layer, upper layer is coarse aggregate layer 30, and lower layer is fine aggregate layer 31, and coarse aggregate layer 30 is equipped with coarse aggregate outlet 32,
Fine aggregate layer 31 is equipped with fine aggregate outlet 33, and it is minimum that coarse aggregate outlet 32 and fine aggregate outlet 33 are respectively arranged on particle screening slot 28
The two sides in portion.The two sides vertical sliding of particle screening slot 28 is set on support frame 34 and (can be connected by sliding slot with sliding block, this structure
It for conventional technical means, is no longer described in detail).The bottom of particle screening slot 28 is fixed with vibrating air cylinder 22,34 He of support frame as described above
Vibrating air cylinder 22 is fixed on bottom plate 1.
The reinforcing bar channel 19, coarse aggregate outlet 32, fine aggregate outlet 33 are respectively arranged below with reinforcing bar collecting box, thick bone
Expect collecting box, fine aggregate collecting box.
Claims (5)
1. a kind of refuse disposal installation, including bottom plate, it is characterised in that: be successively arranged from top to bottom on the bottom plate crushing chamber,
Reinforcing bar split tunnel, reinforcing bar recovery room, screening mechanism；
The top of the crushing chamber is equipped with feed inlet, and dynamic crushing shell and quiet crushing shell are equipped in crushing chamber, moves crushing shell and quiet broken
Slashings tilts the lower section for being symmetrically set in feed inlet, and top and the crushing chamber top inner wall for moving crushing shell are hinged, moves crushing shell bottom end
Side far from quiet crushing shell is hinged with broken cylinder, and broken cylinder is fixed in broken chamber interior walls, and quiet crushing shell is fixed on brokenly
In broken chamber interior walls；
The reinforcing bar split tunnel is obliquely installed, and the import being connected to crushing chamber bottom and its bottom are equipped at the top of reinforcing bar split tunnel
Portion is equipped with outlet, and the inside top surface of reinforcing bar split tunnel is fixed with two bearing blocks, runs through in two bearing blocks and be equipped with shaft,
The shaft is connected with driving mechanism, the overbending direction in several bending parts and adjacent bend portion is equipped at intervals in shaft on the contrary,
The outer turning set of bending part is equipped with sleeve, and pressing plate is fixedly connected on the sleeve, and the pressing plate is equipped with cutter；
The top side of the reinforcing bar recovery room is equipped with blanking channel, and the outlet of the blanking channel and reinforcing bar split tunnel connects
It is logical, screening roller is equipped in reinforcing bar recovery room, the screening roller is set to middle part in reinforcing bar recovery room and is located at blanking channel
Side, the both ends for screening roller are rotatably connected on the inner wall of reinforcing bar recovery room, screen the side in roller close to blanking channel
Permanent magnet equipped with arc, the both ends of the permanent magnet are fixed on the inner wall of reinforcing bar recovery room, and the bottom of reinforcing bar recovery room is set
There are concrete shaft and reinforcing bar channel, the concrete shaft is located at screening roller close to the side of blanking channel, the reinforcing bar
Channel is located at screening side of the roller far from blanking channel, and concrete shaft and reinforcing bar channel are separated by inverted V type partition, institute
It states and is equipped with breaker roll in concrete shaft and its bottom is equipped with concrete outlet；
The screening mechanism is set to below concrete outlet.
2. a kind of refuse disposal installation according to claim 1, it is characterised in that: the lower section of crushing shell is equipped in crushing chamber
Several baffles, several baffles are spaced setting from top to bottom, and baffle is obliquely installed and the inclined direction phase of two neighboring baffle
Instead, baffle is fixed on the inner wall of crushing chamber.
3. a kind of refuse disposal installation according to claim 1, it is characterised in that: be all provided on dynamic crushing shell and quiet crushing shell
There is crushing teeth.
4. a kind of refuse disposal installation according to claim 1, it is characterised in that: the driving mechanism includes shaft electricity
Machine, first bevel gear, second bevel gear；The rotating shaft electric motor is fixed on reinforcing bar split tunnel, and first bevel gear, which is fixed on, to be turned
On the output shaft of spindle motor, second bevel gear is engaged with first bevel gear and is fixed on the outside of shaft.
5. a kind of refuse disposal installation according to claim 1, it is characterised in that: the screening mechanism includes particle screening
Slot, the particle screening slot are obliquely installed, and the highest portion of particle screening slot is set to the underface of concrete outlet, particle screening slot
Interior to be equipped with sieve, particle screening slot is divided into upper layer and lower layer by the sieve, and upper layer is coarse aggregate layer, and lower layer is fine aggregate layer,
Coarse aggregate layer is exported equipped with coarse aggregate, and fine aggregate layer is exported equipped with fine aggregate, and coarse aggregate outlet and fine aggregate outlet are respectively arranged on
The two sides of particle screening slot lowest part；The two sides vertical sliding of particle screening slot is set on support frame, the bottom of particle screening slot
It is fixed with vibrating air cylinder, support frame as described above and vibrating air cylinder are fixed on bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920329191.4U CN209631800U (en) | 2019-03-15 | 2019-03-15 | A kind of refuse disposal installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920329191.4U CN209631800U (en) | 2019-03-15 | 2019-03-15 | A kind of refuse disposal installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209631800U true CN209631800U (en) | 2019-11-15 |
Family
ID=68496096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920329191.4U Expired - Fee Related CN209631800U (en) | 2019-03-15 | 2019-03-15 | A kind of refuse disposal installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209631800U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871494A (en) * | 2020-08-18 | 2020-11-03 | 上海建工四建集团有限公司 | Reinforced concrete waste treatment device |
| CN111921588A (en) * | 2020-07-16 | 2020-11-13 | 陈泽华 | Automatic material classification and recovery device |
| CN112076862A (en) * | 2020-09-04 | 2020-12-15 | 深圳市正阳咨询服务有限公司 | Reinforced concrete refuse treatment equipment |
| CN112191622A (en) * | 2020-09-23 | 2021-01-08 | 陈觉中 | Building concrete piece treatment facility |
| CN114289162A (en) * | 2021-12-31 | 2022-04-08 | 唐凯 | Environment-friendly premixed concrete preparation device utilizing construction waste |
| CN117225863A (en) * | 2023-09-21 | 2023-12-15 | 黄山徽建工程有限公司 | Construction waste recycling process |
-
2019
- 2019-03-15 CN CN201920329191.4U patent/CN209631800U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111921588A (en) * | 2020-07-16 | 2020-11-13 | 陈泽华 | Automatic material classification and recovery device |
| CN111871494A (en) * | 2020-08-18 | 2020-11-03 | 上海建工四建集团有限公司 | Reinforced concrete waste treatment device |
| CN112076862A (en) * | 2020-09-04 | 2020-12-15 | 深圳市正阳咨询服务有限公司 | Reinforced concrete refuse treatment equipment |
| CN112191622A (en) * | 2020-09-23 | 2021-01-08 | 陈觉中 | Building concrete piece treatment facility |
| CN114289162A (en) * | 2021-12-31 | 2022-04-08 | 唐凯 | Environment-friendly premixed concrete preparation device utilizing construction waste |
| CN117225863A (en) * | 2023-09-21 | 2023-12-15 | 黄山徽建工程有限公司 | Construction waste recycling process |
| CN117225863B (en) * | 2023-09-21 | 2024-03-12 | 黄山徽建工程有限公司 | Construction waste recycling process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191115 |