CN218756850U - Old pitch recovery processing device - Google Patents
Old pitch recovery processing device Download PDFInfo
- Publication number
- CN218756850U CN218756850U CN202223255733.9U CN202223255733U CN218756850U CN 218756850 U CN218756850 U CN 218756850U CN 202223255733 U CN202223255733 U CN 202223255733U CN 218756850 U CN218756850 U CN 218756850U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- baffle
- pipe
- push
- vent pipe
- 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.)
- Active
Links
- 238000012545 processing Methods 0.000 title claims abstract description 9
- 238000011084 recovery Methods 0.000 title claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims abstract description 40
- 238000002156 mixing Methods 0.000 claims description 24
- 239000010426 asphalt Substances 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract description 15
- 230000035699 permeability Effects 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 230000002026 carminative effect Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000003437 trachea Anatomy 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012492 regenerant Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 235000019633 pungent taste Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model belongs to the technical field of the pitch processing apparatus, and an old pitch recovery processing device is disclosed, including the churn, first breather pipe of churn front end fixedly connected with, churn rear end fixedly connected with second breather pipe. The utility model discloses a cylinder, the push-and-pull board, ventilation unit, reach and keep the filter screen permeability to maintain the purpose of filtration efficiency, through cylinder pulsed work, the cylinder during operation, drive the push-and-pull board back-and-forth movement, push away through two and draw the post, the ventilation unit who drives the incasement chamber of ventilating removes, change the position that second baffle and ventilation unit are connected, two fan and the first baffle of admitting air, the class effect of separating of second baffle and baffle is down, thereby it admits air and carminative direction from two filter screens to change gaseous in the churn, make the plug of filtration pore on the filter screen can in time dredge, guarantee the permeability of filter screen, thereby reach and keep the filter screen permeability to maintain filtration efficiency.
Description
Technical Field
The utility model relates to a pitch processing apparatus technical field specifically is an old pitch recovery processing device.
Background
When the asphalt pavement is maintained or renovated, old asphalt on the asphalt pavement still has high utilization value, and is re-stirred with a regenerant, a new asphalt material and the like according to a certain proportion after being dug, recovered, crushed and screened to obtain a regenerated asphalt mixture.
Among the prior art, at old pitch and regenerant, a series of materials such as new asphalt material stir in the mixing plant and handle, can produce a large amount of pitch cigarette in the churn, the pitch cigarette is generally mingled with certain smoke and dust, and have stronger pungent taste, it is great to human harm, be equipped with filtration system on the churn, filter screen surface with churn inner chamber lug connection is after long-term work, can adhere to a large amount of plugs, lead to the fact the jam to the filtration pore of crossing on the filter screen, influence the pitch cigarette and get into the filterable efficiency of filter layer through the filter screen, to above-mentioned condition, design one kind and keep the old pitch recovery processing apparatus of filter screen permeability to maintain filtration efficiency.
SUMMERY OF THE UTILITY MODEL
For solving the problem that proposes among the above-mentioned background art, the utility model provides an old pitch recovery processing device, the utility model discloses a cylinder, push-and-pull board, air breather reach and keep the filter screen permeability to maintain the purpose of filtration efficiency, through cylinder pulsed work, the cylinder during operation drives the push-and-pull board back-and-forth movement, through two push-and-pull posts, and the air breather who drives the case inner chamber of ventilating removes, realizes keeping the filter screen permeability to maintain the advantage of filtration efficiency.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an old pitch recovery processing device, includes the churn, churn front end fixedly connected with first breather pipe, churn rear end fixedly connected with second breather pipe, first breather pipe and second breather pipe are close to the equal fixedly connected with filter screen of churn inner chamber wall one end, the first filter layer of filter screen outside fixedly connected with, first filter layer outside fixedly connected with second filter layer, the one end fixedly connected with ventilation box that is close to the churn between second breather pipe and the first breather pipe, ventilation box upper end fixedly connected with cylinder, the cylinder piston rod is close to one side fixedly connected with push-and-pull board of second breather pipe, two push-and-pull posts of one side fixedly connected with that the push-and-pull board is close to the push-and-pull post, two one side fixedly connected with breather of push-and-pull board is kept away from to the push-and-pull post, one side fixedly connected with third breather pipe that the churn was kept away from to the ventilation box.
In the above technical scheme, preferably, the first filter layer and the second filter layer are both fixedly sleeved in the first vent pipe and the second vent pipe, and the first vent pipe and the second vent pipe are consistent in structure.
In the above technical scheme, preferably, the first filter layer is a carbon filter layer, the second filter layer is an odor removal filter layer, and the filter screen is made of a metal stainless steel material.
In the above technical scheme, preferably, two holes are formed in the middle of one side of the ventilation box close to the second ventilation pipe, the push-pull column is movably sleeved in the holes, and the push-pull plate is integrally n-shaped and located above the second ventilation pipe.
In the above technical scheme, preferably, the ventilation device includes a connecting plate, two air inlet fans are fixedly mounted at one end of the connecting plate away from the third air inlet pipe, connecting columns are fixedly connected to four corners of the front end and the rear end of the connecting plate, a baffle is fixedly connected to one side of the connecting column away from the connecting plate, the baffle and the connecting plate are movably sleeved in an inner cavity of the ventilation box, and the rear end of the baffle is fixedly connected with the push-pull column.
In the above technical scheme, preferably, a rectangular groove is formed in one end, close to the third ventilation pipe, of the connecting plate, and a ventilation groove is formed in one end, close to the third ventilation pipe, of the baffle.
Among the above-mentioned technical scheme, it is preferred, fixedly connected with first baffle between the upper and lower end of third trachea inner chamber, one side fixedly connected with second baffle of third trachea is kept away from to first baffle, second baffle and air duct looks adaptation, the upper end fixed mounting that second baffle one side was kept away from to third trachea has atomizer.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a cylinder, the push-and-pull board, ventilation unit, reach and keep the filter screen permeability to maintain the purpose of filtration efficiency, through cylinder pulsed work, the cylinder during operation, drive the push-and-pull board back-and-forth movement, push away through two and draw the post, the ventilation unit who drives the incasement chamber of ventilating removes, change the position that second baffle and ventilation unit are connected, two fan and the first baffle of admitting air, the class effect of separating of second baffle and baffle is down, thereby it admits air and carminative direction from two filter screens to change gaseous in the churn, make the plug of filtration pore on the filter screen can in time dredge, guarantee the permeability of filter screen, thereby reach and keep the filter screen permeability to maintain filtration efficiency.
Drawings
Fig. 1 is an overall schematic view of the present invention;
fig. 2 is a schematic cross-sectional view of the first and second ventilation tubes of the present invention;
FIG. 3 is a schematic cross-sectional view of the ventilation box of the present invention;
FIG. 4 is a partial view of the outer end of the ventilation box of the present invention;
fig. 5 is an exploded view of the ventilating device of the present invention.
In the figure: 1-a mixing drum; 2, filtering a screen; 3-a first vent pipe; 4-a second vent pipe; 5-air cylinder; 6, a push-pull plate; 7-push-pull columns; 8-a ventilation box; 9-a third vent pipe; 10-an atomizing spray head; 11-a first separator; 12-a first filter layer; 13-a second filter layer; 14-a venting device; 1401-a baffle; 1402-a vent slot; 1403-connecting column; 1404-a connecting plate; 1405-an inlet fan; 1406-rectangular slot; 15-holes; 16-second separator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: an old asphalt recycling device comprises a mixing drum 1, wherein a first vent pipe 3 is fixedly connected to the front end of the mixing drum 1, a second vent pipe 4 is fixedly connected to the rear end of the mixing drum 1, a filter screen 2 is fixedly connected to one end, close to the inner cavity wall of the mixing drum 1, of each of the first vent pipe 3 and the second vent pipe 4, a first filter layer 12 is fixedly connected to the outer side of the filter screen 2, a second filter layer 13 is fixedly connected to the outer side of the first filter layer 12, a vent box 8 is fixedly connected to one end, close to the mixing drum 1, between the second vent pipe 4 and the first vent pipe 3, an air cylinder 5 is fixedly connected to the upper end of the vent box 8, a push-pull plate 6 is fixedly connected to one side, close to the second vent pipe 4, of a piston rod of the air cylinder 5, two push-pull columns 7 are fixedly connected to one side, close to the vent box 8, an air ventilation device 14 is fixedly connected to one side, far away from the push-pull column 6, and a third vent pipe 9 is fixedly connected to one side, far away from the mixing drum 1, of the vent box 8; the position of the ventilation device 14 is changed by the pulse type work of the air cylinder 5 and the state of the piston rod of the air cylinder 5, so that the air inlet and exhaust functions of the first ventilation pipe 3 and the second ventilation pipe 4 are changed, and the air inlet and outlet directions of the two filter screens 2 are changed.
As shown in fig. 2, the first filter layer 12 and the second filter layer 13 are both fixedly sleeved in the first vent pipe 3 and the second vent pipe 4, the first vent pipe 3 and the second vent pipe 4 have the same structure, the first filter layer 12 is a carbon filter layer, the second filter layer 13 is an odor removal filter layer, and the filter screen 2 is made of a metal stainless steel material; when pitch produced the pitch cigarette in 1 churn, can be through filter screen 2 prefilter, rethread first filter layer 12 removes the evil and filters, and rethread second filter layer 13 removes the flavor and filters to filter the purification to the device combustion gas.
As shown in fig. 1, 3 and 4, two holes 15 are formed in the middle of one side of the ventilation box 8 close to the second ventilation pipe 4, the push-pull column 7 is movably sleeved in the holes 15, and the push-pull plate 6 is integrally n-shaped and is positioned above the second ventilation pipe 4; by activating the cylinder 5, the push-pull plate 6 is driven, so that the push-pull column 7 pushes the breather 14.
As shown in fig. 1 and fig. 3 to fig. 5, the ventilation device 14 includes a connecting plate 1404, one end of the connecting plate 1404 far away from the third ventilation pipe 9 is fixedly provided with two air inlet fans 1405, four corners of the front and rear ends of the connecting plate 1404 are fixedly connected with connecting columns 1403, one side of the connecting columns 1403 far away from the connecting plate 1404 is fixedly connected with a baffle 1401, the baffle 1401 and the connecting plate 1404 are movably sleeved in an inner cavity of the ventilation box 8, the rear end 1401 of the baffle is fixedly connected with the push-pull column 7, one end of the connecting plate 1404 close to the third ventilation pipe 9 is provided with a rectangular groove 1406, one end of the baffle 1401 close to the third ventilation pipe 9 is provided with a ventilation groove 1402, a first partition 11 is fixedly connected between the upper end and the lower end of the inner cavity of the third ventilation pipe 9, one side of the first partition 11 far away from the third ventilation pipe 9 is fixedly connected with a second partition 16, the second partition 16 is adapted to the ventilation groove 1402, and the upper end of the third ventilation pipe 9 far away from the second partition 16 is fixedly provided with an atomizing nozzle 10; when the air breather 14 moves in the inner cavity, when the piston rod of the cylinder 5 is in a telescopic state, the whole air breather 14 is close to the second vent pipe 4, the second clapboard 16 is clamped into the vent groove 1402 on the front end baffle 1401, under the action of the two air inlet fans 1405, air enters the second vent pipe 4 from the rear end of the first clapboard 11 in the third vent pipe 9, when the air is exhausted from the filter screen 2 at one side of the second vent pipe 4, the air can blow the blockage attached to the filter hole on the filter screen 2 into the inner cavity of the mixing drum 1 to keep the filter hole permeability of the filter screen 2 on the second vent pipe 4, the air in the mixing drum 1 can be exhausted from the front end of the first clapboard 11 in the third vent pipe 9 along the first vent pipe 3 and the vent box 8, when the piston rod of the cylinder 5 is in a telescopic state, the whole air breather 14 is close to the first vent pipe 3, in the air duct 1402 on the 16 joint of second baffle advances rear end baffle 1401, in the effect of two fans 1405 that admit air, gaseous 11 front ends from the first baffle in the third breather pipe 9 get into first breather pipe 3, gaseous when the filter screen 2 from first breather pipe 3 one side is discharged again, can be with the adnexed plug in filter screen 2 last filter screen, blow into 1 inner chamber of churn, keep filter screen 2 filter screen permeability on the first breather pipe 3, 1 interior gas of churn can be along second breather pipe 4 and ventilation box 8, discharge from the 11 rear ends of first baffle in the third breather pipe 9, thereby guarantee the permeability in filter screen 2 filter screen, thereby guarantee filtration efficiency, reach the filter effect good, simultaneously through atomizer 10, cool down the gas of third breather pipe 9 combustion gas.
The working principle is as follows: when the interior of the mixing drum 1 is subjected to constant-temperature mixing, the air cylinder 5 is started to drive the push-pull plate 6, the push-pull plate 6 drives the two push-pull columns 7 to push and pull the ventilating device 14, so that the ventilating device 14 is subjected to position change in the inner cavity of the ventilating box 8, when the piston rod is in a stretching state, the whole ventilating device 14 is close to one side of the second ventilating pipe 4, the second partition plate 16 is clamped into the ventilating groove 1402 of the front baffle 1401, under the action of the two connecting plates 1404, external air enters the second ventilating pipe 4 from the ventilating groove 1402 on the rear baffle 1401, enters the inner cavity of the mixing drum 1 from the filter screen 2 on the second ventilating pipe 4, can blow the blockage attached to the filter holes in the filter screen 2 into the inner cavity of the mixing drum 1, keeps the permeability of the filter screen 2 on the second ventilating pipe 4, meanwhile, the air in the inner cavity of the mixing drum 1 is filtered and discharged from the filter screen 2 on the first ventilating pipe 3, the first filtering layer 12 and the second filtering layer 13, the first ventilating pipe 3 and the ventilating box 8 are discharged from the front end of the first partition plate 11 in the third ventilating pipe 9, and are cooled under the action of the atomizing nozzle 10;
when the piston rod is in a contracted state, the whole ventilating device 14 is close to one side of the first ventilating pipe 3, the second partition 16 is clamped into the ventilating groove 1402 of the rear end baffle 1401, under the action of the two connecting plates 1404, external air enters the first ventilating pipe 3 from the ventilating groove 1402 on the front end baffle 1401, enters the inner cavity of the mixing drum 1 from the filter screen 2 on the first ventilating pipe 3, can blow the blockage attached to the filter holes on the filter screen 2 into the inner cavity of the mixing drum 1, keeps the permeability of the filter holes 2 on the first ventilating pipe 3, and simultaneously, the air in the inner cavity of the mixing drum 1 is filtered and discharged from the filter screen 2 on the second ventilating pipe 4, the first filter layer 12 and the second filter layer 13, is discharged from the rear end of the first partition 11 in the third ventilating pipe 9 along the second ventilating pipe 4 and the ventilating box 8, and is cooled under the action of the atomizing nozzle 10.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an old pitch recovery processing device, includes churn (1), its characterized in that: the mixing drum is characterized in that a first vent pipe (3) is fixedly connected to the front end of the mixing drum (1), a second vent pipe (4) is fixedly connected to the rear end of the mixing drum (1), the first vent pipe (3) and the second vent pipe (4) are close to a filter screen (2) which is fixedly connected to the inner cavity wall of the mixing drum (1), a first filter layer (12) is fixedly connected to the outer side of the filter screen (2), a second filter layer (13) is fixedly connected to the outer side of the first filter layer (12), a vent box (8) which is close to the mixing drum (1) is arranged between the second vent pipe (4) and the first vent pipe (3), a cylinder (5) is fixedly connected to the upper end of the vent box (8), a piston rod of the cylinder (5) is close to a push-pull plate (6) which is fixedly connected to one side of the second vent pipe (4), two push-pull columns (7) are fixedly connected to one side of the vent box (6) and two push-pull columns (7) are fixedly connected to the push-pull columns (7), and a ventilation device (14) which is fixedly connected to one side of the push-pull plate (6) is far away from the mixing drum (1) is connected to the vent box (8).
2. The old asphalt recycling device according to claim 1, wherein: the first filter layer (12) and the second filter layer (13) are fixedly sleeved in the first vent pipe (3) and the second vent pipe (4), and the first vent pipe (3) and the second vent pipe (4) are consistent in structure.
3. The old asphalt recycling device according to claim 1, wherein: the first filter layer (12) is a carbon filter layer, the second filter layer (13) is an odor removal filter layer, and the filter screen (2) is made of a metal stainless steel material.
4. The old asphalt recycling device according to claim 1, wherein: two holes (15) are formed in the middle of one side, close to the second vent pipe (4), of the vent box (8), the push-pull column (7) is movably sleeved in the holes (15), and the push-pull plate (6) is n-shaped and located above the second vent pipe (4).
5. The old asphalt recycling device according to claim 1, wherein: the ventilating device (14) comprises a connecting plate (1404), wherein two air inlet fans (1405) are fixedly mounted at one end, far away from a third ventilating pipe (9), of the connecting plate (1404), connecting columns (1403) are fixedly connected to four corners of the front end and the rear end of the connecting plate (1404), a baffle (1401) is fixedly connected to one side, far away from the connecting plate (1404), of each connecting column (1403), the baffle (1401) and the connecting plate (1404) are movably sleeved in an inner cavity of the ventilating box (8), and the rear end of the baffle (1401) is fixedly connected with a push-pull column (7).
6. The old asphalt recycling device according to claim 5, wherein: one end of the connecting plate (1404) close to the third air through pipe (9) is provided with a rectangular groove (1406), and one end of the baffle (1401) close to the third air through pipe (9) is provided with an air through groove (1402).
7. The old asphalt recycling device according to claim 6, wherein: fixedly connected with first baffle (11) between the upper and lower end of third blast pipe (9) inner chamber, one side fixedly connected with second baffle (16) of third blast pipe (9) are kept away from in first baffle (11), second baffle (16) and air duct (1402) looks adaptation, the upper end fixed mounting that second baffle (16) one side was kept away from in third blast pipe (9) has atomizer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223255733.9U CN218756850U (en) | 2022-12-02 | 2022-12-02 | Old pitch recovery processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223255733.9U CN218756850U (en) | 2022-12-02 | 2022-12-02 | Old pitch recovery processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218756850U true CN218756850U (en) | 2023-03-28 |
Family
ID=85679502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223255733.9U Active CN218756850U (en) | 2022-12-02 | 2022-12-02 | Old pitch recovery processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218756850U (en) |
-
2022
- 2022-12-02 CN CN202223255733.9U patent/CN218756850U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106268156A (en) | A kind of metal disintegrating machine dust arrester | |
| CN204950802U (en) | Dust catcher is with filtering component of manual deashing | |
| CN218756850U (en) | Old pitch recovery processing device | |
| CN204582794U (en) | A kind of cement plant small-size dust remover | |
| CN203757881U (en) | Air purifier | |
| CN211133351U (en) | Smoke dust filtering device of laser machine | |
| CN211273957U (en) | Smoke purification device for steel wire processing production workshop for foaming | |
| CN209076288U (en) | A kind of denitrating flue gas device inlet duct | |
| CN215026917U (en) | Fireproof dust remover | |
| CN213914016U (en) | Crushing and screening device for road and bridge construction | |
| CN215842308U (en) | Improvement type bucket formula industrial purification ware | |
| CN214051006U (en) | Silencing dust remover | |
| CN211963729U (en) | Air purifier | |
| CN213942639U (en) | High-efficient industrial dust collecting equipment | |
| CN209885426U (en) | High-efficient bag collector | |
| CN211133383U (en) | Air purifier | |
| CN206459237U (en) | A kind of environmental protective oil fume extraction apparatus | |
| CN110917874A (en) | Air purifier | |
| CN221131450U (en) | Environment-friendly filtering device convenient to clean | |
| CN219442848U (en) | Pulping workshop material preparation dust collector with waste treatment mechanism | |
| CN211963389U (en) | Dust collector for cement manufacture | |
| CN218458978U (en) | Strong effect cartridge filter | |
| CN214551971U (en) | People's air defense ventilation dust filter | |
| CN214665044U (en) | Photocatalyst air purifier with dust removal mechanism | |
| CN212523522U (en) | Environmental protection dust collector for brickmaking workshop equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231017 Granted publication date: 20230328 |
|
| PP01 | Preservation of patent right |