CN214527183U - Waterproofing membrane rectifying system - Google Patents
Waterproofing membrane rectifying system Download PDFInfo
- Publication number
- CN214527183U CN214527183U CN202120075491.1U CN202120075491U CN214527183U CN 214527183 U CN214527183 U CN 214527183U CN 202120075491 U CN202120075491 U CN 202120075491U CN 214527183 U CN214527183 U CN 214527183U
- Authority
- CN
- China
- Prior art keywords
- sliding
- support frame
- waterproofing membrane
- plate
- rectifying system
- 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
Links
- 239000012528 membrane Substances 0.000 title claims description 16
- 238000004078 waterproofing Methods 0.000 title claims description 16
- 239000004744 fabric Substances 0.000 claims abstract description 25
- 230000008094 contradictory effect Effects 0.000 claims abstract description 3
- 230000000670 limiting effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000002829 reductive effect Effects 0.000 description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000001605 fetal effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The application relates to the field of waterproof coiled material processing equipment, in particular to a waterproof coiled material deviation rectifying system which comprises support frames, wherein a plurality of parallel cloth guide rollers are fixedly arranged between the support frames, the upper end surfaces of the cloth guide rollers are higher than the upper end surfaces of the support frames, the side walls of the support frames are provided with at least three groups of rectifying devices, and the three groups of rectifying devices are arranged on two sides of the support frames in a staggered manner; the side that orthotic devices can be close to the child base of contradicting is corrected, is equipped with the slip subassembly between the lateral wall of orthotic devices and support frame, and the slip subassembly can drive orthotic devices and be close to or keep away from the support frame. This application has the child base that can the multiple width of adaptation and carries out the effect of rectifying.
Description
Technical Field
The application relates to waterproofing membrane processing equipment's field especially relates to a waterproofing membrane rectifying system.
Background
At present, waterproof coiled materials need to be lapped and dried by base fabric of a tire in the processing process; pre-dipping and coating a base fabric of the tire; sand coating or film covering; a lamp cooling and rolling procedure; usually the child base need pass through a plurality of fabric guide rolls in the in-process of processing, and the fabric guide roll can play the effect of support to the child base on the one hand, and on the other hand, one side of child base can roll friction with the roller shell of fabric guide roll, and frictional force is little, has reduced the damage to the side wall.
When the base passes through a plurality of cloth guide rollers, the base can be deviated in the horizontal direction, so that the phenomena of uneven dip coating, irregular film coating and the like can be caused, and the quality of the waterproof roll is seriously influenced; therefore, a correction system is needed to correct the tire base which is deviated in the process of conveying the tire base. The common deviation correcting system adopts that air cylinders are arranged on two sides of a conveying device, and the air cylinders swing in a reciprocating manner to correct and reset the tire base which deviates; however, the common air cylinders are fixedly arranged on the two sides of the conveying device, and the air cylinders cannot be adjusted, so that the deviation correcting system can only be correspondingly adapted to the tire base with single width.
In view of the above-mentioned related art, the inventor believes that there is a drawback in that the deviation correcting system cannot be adapted to various widths of bases.
SUMMERY OF THE UTILITY MODEL
In order to make rectifying system can adapt the child base of multiple width rectify a deviation, this application provides a waterproofing membrane rectifying system.
The application provides a waterproofing membrane rectifying system adopts following technical scheme:
a deviation rectifying system for a waterproof coiled material comprises support frames, wherein a plurality of parallel cloth guide rollers are fixedly arranged between the support frames, the upper end surfaces of the cloth guide rollers are higher than the upper end surfaces of the support frames, the side walls of the support frames are provided with rectifying devices, at least three groups of rectifying devices are arranged on the side walls of the support frames, and the three groups of rectifying devices are arranged on two sides of the support frames in a staggered mode; the side that orthotic devices can be close to the child base of contradicting is corrected, is equipped with the slip subassembly between the lateral wall of orthotic devices and support frame, and the slip subassembly can drive orthotic devices and be close to or keep away from the support frame.
By adopting the technical scheme, the sliding assembly can adjust the distance between the correcting device and the side wall of the support frame, three groups of correcting devices are arranged, and when the fetal base deviates to any one side of two sides of the support frame, the correcting device can correct, center and adjust the deviated fetal base; the sliding assembly can drive the corresponding correction device to be close to or far away from the side wall of the support frame, so that the correction device can be matched with the tire bases with different widths to correct the deviation.
Optionally, the sliding assembly comprises a sliding rod and a limiting pin, a sliding hole is formed in the side wall of the support frame, the sliding rod is in sliding fit with the sliding hole, and one end, located on the outer side of the support frame, of the sliding rod is fixedly connected with the correcting device; the limiting pin is inserted into one end of the sliding rod, which is positioned at the inner side of the support frame, and the length of the limiting pin is greater than the diameter of the sliding hole.
By adopting the technical scheme, the sliding rod is matched with the sliding hole, so that the correcting device can be close to or far away from the supporting frame; meanwhile, the limiting pin can limit the sliding rod, the sliding hole can limit the limiting pin to pass through, the sliding rod is further limited to be completely separated from the sliding hole, and the stability of the sliding assembly is improved.
Optionally, the correcting device comprises a cylinder and a supporting plate, and one side of the supporting plate, which is close to the supporting frame, is fixedly connected with the sliding rod; the air cylinder is fixedly arranged at the upper end of the supporting plate, and one end of a piston rod of the air cylinder is close to the supporting frame; the end of the piston rod of the cylinder is fixedly provided with a touch plate.
Through adopting above-mentioned technical scheme, adopt the cylinder, the piston rod action of cylinder is quick, and the response is fast, and reciprocating linear motion can be done to the cylinder, and the piston rod of cylinder can automatic re-setting after rectifying, has reduced the influence of carrying on the fabric guide roller to the child base.
Optionally, the sliding assembly further comprises a scale plate, one end of the scale plate is fixedly connected with the outer wall of the side, provided with the correcting device, of the support frame, and the scale plate is parallel to the cloth guide roller; the upper end of the scale plate is provided with a through chute, the bottom surface of the supporting plate is fixedly provided with a sliding block, the sliding block is in sliding fit with the chute, and the bottom surface of the supporting plate is abutted against the upper end surface of the scale plate.
Through adopting above-mentioned technical scheme, the bottom surface of backup pad is contradicted with the up end of yardstick board for yardstick board can provide the support to the bottom of backup pad, has further promoted orthotic devices's stability.
Optionally, the upper end surface of the scale plate is provided with scale marks.
Through adopting above-mentioned technical scheme, after changing the child base of another kind of width, when the workman adjusted a set of orthotic devices and adjusted to suitable scale fixed, other two sets of orthotic devices can directly adjust to this scale and fix, have reduced other two sets of orthotic devices' adjustment time, have improved the efficiency of adjusting.
Optionally, the sliding assembly further comprises a fastening bolt, the upper end of the support frame is provided with a threaded hole communicated to the sliding hole, the fastening bolt is screwed in the threaded hole, and the fastening bolt can abut against the sliding rod to limit the sliding rod by 1.
By adopting the technical scheme, the fiber bolt can abut against the sliding rod and can limit the sliding rod to slide in the sliding hole, so that the correcting component is supported more stably by the sliding component; meanwhile, the fastening bolt is convenient to adjust, and the convenience of operation is improved.
Optionally, at least two sliding rods are provided.
By adopting the technical scheme, the two sliding rods are arranged, and the two sliding rods can play a better supporting role on the correcting device; simultaneously two slide bars for the slip subassembly can not rotate, has promoted the fixed stability to correction subassembly.
Optionally, a protection pad is fixedly arranged on one side, away from the cylinder piston rod, of the contact plate.
Through adopting above-mentioned technical scheme, the protection is filled up and can be reduced to the touch-sensitive plate to the fish tail of child base lateral wall when conflicting child lateral wall, has protected the integrality of child base.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the sliding assembly can adjust the distance between the correcting device and the side wall of the support frame, three groups of correcting devices are arranged, and when the fetal base deviates to any one side of the two sides of the support frame, the correcting device can correct, center and adjust the deviated fetal base; the sliding assembly can drive the corresponding correction device to be close to or far away from the side wall of the support frame, so that the correction device can be matched with the tire bases with different widths to correct the deviation;
2. after the child base of another kind of width of change, when the workman adjusted a set of orthotic devices and adjusted to suitable scale fixed, other two sets of orthotic devices can directly be adjusted and fix to this scale, have reduced other two sets of orthotic devices' adjustment time, have improved the efficiency of adjusting.
Drawings
FIG. 1 is a schematic overall view of a system in an embodiment of the present application;
fig. 2 is a partial three-dimensional schematic diagram in fig. 1 according to an embodiment of the present application.
Description of reference numerals: 1. a support frame; 11. a cross beam; 12. supporting legs; 13. a cloth guide roller; 14. a slide hole; 15. a threaded hole; 2. a corrective device; 21. a support plate; 22. a cylinder; 23. a touch plate; 24. a protective pad; 25. a slider; 3. a sliding assembly; 31. a slide bar; 32. a spacing pin; 33. fastening a bolt; 34. a scale plate; 35. a chute; 36. scale lines; 4. and (4) a tyre base.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses waterproofing membrane rectifying system refers to fig. 1 and 2, and it includes support frame 1 and three at least orthotic devices 2 of group, and one side of support frame 1 is provided with two sets of orthotic devices 2, and the opposite side of support frame 1 is provided with a set of orthotic devices 2, and the orthotic devices 2 of support frame 1 both sides set up by mistake between. The correcting device 2 comprises a cylinder 22, one end of a piston rod of the cylinder 22 is fixedly provided with a touch plate 23, and the touch plate 23 is arranged close to the tire base 4. The piston rods of the three groups of cylinders 22 can extend out simultaneously, the piston rods of the cylinders 22 drive the touch plates 23 to touch the sidewall of the tire base 4 with offset, and the touch plates 23 push the tire base 4 to move in the direction away from the body cylinders 22 to correct the tire base 4. Be provided with sliding assembly 3 between orthotic devices 2 and the lateral wall of support frame 1, sliding assembly 3 can make orthotic devices 2 be close to or keep away from the lateral wall of support frame 1, and the distance between the lateral wall that conflict board 23 of support frame 1 both sides orthotic devices 2 deviates from corresponding cylinder 22 piston rod can reduce or increase, and then makes orthotic devices 2 can adapt to the child base 4 of different width and adjust.
Referring to fig. 1 and 2, the support frame 1 comprises two horizontal beams 11 which are parallel to each other, and a plurality of vertical support legs 12 are arranged at the bottom of the beams 11; a plurality of cloth guide rollers 13 which are parallel to each other horizontally are arranged between the two cross beams 11, and two ends of a roller shaft of each cloth guide roller 13 are welded and fixed with the inner sides of the cross beams 11 at the corresponding ends; the upper end of the roller sleeve of the cloth guide roller 13 is higher than the upper end surface of the beam 11. The tread 4 is able to slide horizontally on the cloth guide roller 13, subject to external traction.
Referring to fig. 1 and 2, the sliding assembly 3 includes two sliding rods 31 and two limit pins 32, two horizontal sliding holes 14 penetrating through the inner side and the outer side are formed on the side wall of the cross beam 11, and the sliding rods 31 are in one-to-one corresponding sliding fit with the sliding holes 14; the limit pins 32 correspond to the sliding rods 31 one by one, the limit pins 32 penetrate through one end of the sliding rod 31, which is located on the inner side of the cross beam 11, and the length of the limit pins 32 is greater than the diameter of the sliding holes 14 so as to limit the sliding rods 31 from disengaging from the sliding holes 14. The limiting pin 32 may also be an outer diameter nut screwed to one end of the sliding rod 31 located inside the cross beam 11, and the nut can be blocked by the sliding hole 14 to limit the sliding rod 31 from being separated from the sliding hole 14. The correcting device 2 further comprises a supporting plate 21, and one side of the supporting plate 21 close to the cross beam 11 is welded with one end of the sliding rod 31 far away from the limiting pin 32. The cylinder body of cylinder 22 passes through the bolt fastening in the upper end of backup pad 21, and the one side that conflict board 23 deviates from the cylinder 22 piston rod bonds the protection pad 24 that has the rubber material in order to reduce the injury of conflict board 23 to child base 4 lateral wall.
Referring to fig. 1 and 2, the sliding assembly 3 further includes a scale plate 34 parallel to the cloth guide roller 13, one end of the scale plate 34 is welded to the outer side of the cross beam 11, a sliding groove 35 penetrating through the upper and lower end surfaces is formed in the scale plate 34, a sliding block 25 is fixedly arranged on the bottom surface of the supporting plate 21, the sliding block 25 is in sliding fit with the sliding groove 35, and the upper end surface of the scale plate 34 abuts against the lower end surface of the supporting plate 21. The upper end face of the scale plate 34 is provided with scale marks 36, and the three groups of sliding assemblies 3 are adjusted to enable the three groups of correcting devices 2 to be in the same scale, so that the distance between the side walls of the protective pads 24 of the correcting devices 2 on the two sides of the support frame 1 departing from the piston rod of the corresponding air cylinder 22 is equal to the width of the tire base 4 running on the cloth guide roller 13.
Referring to fig. 1 and 2, two threaded holes 15 are formed in the upper end surface of the cross beam 11, the threaded holes 15 correspond to the sliding holes 14 one by one, and the threaded holes 15 are communicated with the corresponding sliding holes 14; a fastening bolt 33 is screwed into the threaded hole 15, and one end of the fastening bolt 33 can abut against the outer wall of the corresponding sliding rod 31 to limit the sliding of the sliding rod 31 in the sliding hole 14, so that the correction device 2 is fixed.
The implementation principle of a waterproofing membrane rectifying system of the embodiment of the application is: when the tire base 4 horizontally runs on the cloth guide roller 13 and deviates, the cylinders 22 of the three groups of correction devices 2 are simultaneously started, the piston rods of the cylinders 22 extend out and drive the touch plate 23 to move towards the direction close to the side wall of the tire base 4, and the protective pads 24 on the touch plate 23 touch the side wall of the deviated tire base 4 and push the tire base 4 to move towards the direction far away from the corresponding cylinders 22; when the piston rod of the cylinder 22 moves to the maximum stroke, one side of each of the protection pads 24 on the three groups of correction devices 2, which is far away from the corresponding cylinder 22, abuts against the side wall of the tire base 4, and the distance between the sides of the protection pads 24 on the two sides of the support frame 1, which are far away from the corresponding cylinder 22, is equal to the width of the tire base 4; then the piston rod of the cylinder 22 is reset and drives the corresponding collision plate 23 to be far away from the tire base 4, and at the moment, the distance between the side wall of the tire base 4 and the inner side of the cross beam 11 of the corresponding side is equal, so that the rectification is completed.
When the fabric guide roller 13 is used for replacing the base 4 with different widths, the base 4 is horizontally placed on the fabric guide roller 13, so that the distances between the side edges of the base 4 and the inner sides of the cross beams 11 on the corresponding sides are equal; moving the sliding rods 31 of any one set of sliding assemblies 3 along the sliding holes 14 to enable the deviation correcting device to be close to or far away from the cross beam 11; when the piston rod of the cylinder 22 corresponding to the set of sliding assemblies 3 moves to the maximum stroke, the corresponding protection pad 24 can abut against the sidewall of the tire base 4 on the corresponding side; then, the fastening bolt 33 is screwed in so that the fastening bolt 33 abuts against the side wall of the corresponding sliding rod 31, and the straightening devices 2 corresponding to the group of sliding assemblies 3 are fixed; the slide 25 is now adapted to the graduation of the tread 4 on the corresponding scale plate 34. The tire base and the two groups of correction devices 2 are fixed at the positions matched with the scales of the tire base 4, so that the deviation can be corrected when the tire base 4 shifts during operation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a waterproofing membrane rectifying system, includes support frame (1), has set firmly cloth guide roller (13) of a plurality of parallels between support frame (1), its characterized in that: the upper end surface of the cloth guide roller (13) is higher than the upper end surface of the support frame (1), the side wall of the support frame (1) is provided with at least three groups of correction devices (2), and the three groups of correction devices (2) are arranged on two sides of the support frame (1) in a staggered manner; orthotic devices (2) can be close to the side of contradicting child base (4) and carry out the correction, are equipped with between the lateral wall of orthotic devices (2) and support frame (1) sliding component (3), and sliding component (3) can drive orthotic devices (2) and be close to or keep away from support frame (1).
2. The waterproofing membrane rectifying system of claim 1, wherein: the sliding assembly (3) comprises a sliding rod (31) and a limiting pin (32), a sliding hole (14) is formed in the side wall of the support frame (1), the sliding rod (31) is in sliding fit with the sliding hole (14), and one end, located on the outer side of the support frame (1), of the sliding rod (31) is fixedly connected with the correcting device (2); the limiting pin (32) is inserted into one end of the sliding rod (31) which is positioned at the inner side of the support frame (1), and the length of the limiting pin (32) is greater than the diameter of the sliding hole (14).
3. The waterproofing membrane rectifying system of claim 2, characterized in that: the correcting device (2) comprises a cylinder (22) and a supporting plate (21), and one side, close to the supporting frame (1), of the supporting plate (21) is fixedly connected with a sliding rod (31); the air cylinder (22) is fixedly arranged at the upper end of the supporting plate (21), and one end of a piston rod of the air cylinder (22) is close to the supporting frame (1); the end of the piston rod of the cylinder (22) is fixedly provided with a contact plate (23).
4. The waterproofing membrane rectifying system of claim 3, characterized in that: the sliding assembly (3) further comprises a scale plate (34), one end of the scale plate (34) is fixedly connected with the outer wall of one side of the support frame (1) provided with the correcting device (2), and the scale plate (34) is parallel to the cloth guide roller (13); the upper end of the scale plate (34) is provided with a through sliding groove (35), the bottom surface of the support plate (21) is fixedly provided with a sliding block (25), the sliding block (25) is in sliding fit with the sliding groove (35), and the bottom surface of the support plate (21) is abutted against the upper end surface of the scale plate (34).
5. The waterproofing membrane rectifying system of claim 4, characterized in that: the upper end face of the scale plate (34) is provided with scale marks (36).
6. The waterproofing membrane rectifying system of claim 2, characterized in that: the sliding assembly (3) further comprises a fastening bolt (33), the upper end of the support frame (1) is provided with a threaded hole (15) communicated to the sliding hole (14), the fastening bolt (33) is screwed in the threaded hole (15), and the fastening bolt (33) can abut against the sliding rod (31) to limit.
7. The waterproofing membrane rectifying system of claim 2, characterized in that: the number of the sliding rods (31) is at least two.
8. The waterproofing membrane rectifying system of claim 3, characterized in that: and a protective pad (24) is fixedly arranged on one side of the touch plate (23) departing from the piston rod of the air cylinder (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120075491.1U CN214527183U (en) | 2021-01-08 | 2021-01-08 | Waterproofing membrane rectifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120075491.1U CN214527183U (en) | 2021-01-08 | 2021-01-08 | Waterproofing membrane rectifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214527183U true CN214527183U (en) | 2021-10-29 |
Family
ID=78302001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120075491.1U Expired - Fee Related CN214527183U (en) | 2021-01-08 | 2021-01-08 | Waterproofing membrane rectifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214527183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416280A (en) * | 2022-11-01 | 2022-12-02 | 山东金顶防水技术股份有限公司 | Waterproofing membrane production is with tectorial membrane device with prevent inclined to one side structure |
-
2021
- 2021-01-08 CN CN202120075491.1U patent/CN214527183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416280A (en) * | 2022-11-01 | 2022-12-02 | 山东金顶防水技术股份有限公司 | Waterproofing membrane production is with tectorial membrane device with prevent inclined to one side structure |
| CN115416280B (en) * | 2022-11-01 | 2023-01-24 | 山东金顶防水技术股份有限公司 | Tectorial membrane device is used in waterproofing membrane production with prevent inclined to one side structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104493631B (en) | Lifting feeding device | |
| CN214527183U (en) | Waterproofing membrane rectifying system | |
| US4049486A (en) | Rubber strip guide apparatus | |
| CN104907798A (en) | Sealing strip press fitting device | |
| CN210548981U (en) | Accurate positioning material moving machine of laser engraving machine | |
| CN206201164U (en) | A kind of quantitative segmenting device of moulded pottery not yet put in a kiln to bake | |
| CN216655850U (en) | Horizontal straightening machine | |
| CN113751544A (en) | Machining is with bender that has antifriction performance | |
| CN210821430U (en) | Tire marking machine | |
| CN112109356A (en) | Movable gantry type oil press | |
| CN108213139A (en) | A kind of Plate Bending Machine | |
| CN204353234U (en) | Straightening mechanism before a kind of ribbon steel is curling | |
| CN210557655U (en) | Deviation correcting device for bar roller way | |
| CN110142318B (en) | Profile bending machine for power transmission tower | |
| CN109573691B (en) | Lifting rotary type manual paper winding mechanism and paper winding operation method | |
| CN203317893U (en) | Solar film thermal transfer marking machine | |
| CN216585666U (en) | Sock steam setting machine | |
| CN218808385U (en) | Anti-drop conveyor that finish machining spare was used | |
| CN219211128U (en) | Strip guiding and fixing device | |
| CN220406690U (en) | Hydraulic ironing roller | |
| CN219944121U (en) | Simple roller supporting and rotating device | |
| CN219736249U (en) | Slender rubber roll checking table | |
| CN212946838U (en) | Machining is with planer that has automatic function of rectifying | |
| CN210188138U (en) | Section bar length detection device for rounding machine and rounding machine | |
| CN219949973U (en) | Deviation correcting device of decorative paper rewinder |
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: 20211029 |