CN114247062A - Multipurpose high-altitude escape auxiliary rod for fire fighting - Google Patents
Multipurpose high-altitude escape auxiliary rod for fire fighting Download PDFInfo
- Publication number
- CN114247062A CN114247062A CN202210024426.5A CN202210024426A CN114247062A CN 114247062 A CN114247062 A CN 114247062A CN 202210024426 A CN202210024426 A CN 202210024426A CN 114247062 A CN114247062 A CN 114247062A
- Authority
- CN
- China
- Prior art keywords
- wire rope
- steel wire
- rope winding
- central shaft
- sleeve
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
- B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
- B65H75/44—Constructional details
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Lowering Means (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention relates to a multipurpose fire-fighting high-altitude escape auxiliary rod, which comprises a steel wire rope winding and unwinding device, a sleeve and an extension rod, and is characterized in that: the steel wire rope winding and unwinding device comprises a shell, a central shaft, a steel wire rope winding wheel, a steel wire rope and a coil spring, wherein the steel wire rope winding wheel is sleeved on the central shaft, the coil spring is sleeved on the central shaft, one end of the steel wire rope is fixed on the steel wire rope winding wheel and wound on the steel wire rope winding wheel, the other end of the steel wire rope extends out of an opening in the side wall of the shell, a steel wire rope ring or a steel cable ring is arranged at the end of the steel wire rope winding and unwinding device, two sides of the steel wire rope winding and unwinding device are respectively connected with a sleeve, and a long rod is arranged in each sleeve. The advantages are that: can be high temperature resistant, can help firefighters to safely and rapidly escape from a fire scene by matching with a high-altitude escape rapid-descent rope, and can replace a portable multifunctional fire axe handle at the same time, thereby solving the problems that the existing fire axe handle is too short and heavy.
Description
Technical Field
The invention relates to a multipurpose high-altitude escape auxiliary rod for fire fighting, and belongs to the technical field of fire fighting high-altitude escape auxiliary appliances.
Background
The fire-fighting backpack equipped by the firefighter is generally provided with appliances such as a high-altitude escape quick-descent rope, a portable multifunctional fire axe and the like. Firefighters should rapidly escape from a fire scene when they encounter a very large fire and cannot control the fire. When firefighters are trapped in a fire scene in a high-rise building and need to escape, the firefighters are generally bound indoors by using a portable high-altitude escape quick-falling rope and then go out of a window to quickly fall for escape. However, in fire scenes where firefighters need to escape, the fire intensity is very high, the temperature is very high, and the high-altitude escape quick-falling rope is not high-temperature-resistant although the high-altitude escape quick-falling rope has very high strength and is easy to blow out in a short time. Therefore, the high-altitude escape quick-falling rope can be blown when the firefighter does not fall to the ground, so that the firefighter falls down to endanger life safety. In addition, the axe handle of the existing portable multifunctional fire axe is very short (about 20 cm), but is made of a solid steel bar, so that the weight of the fire axe is very heavy. When the fire fighting backpack is put in a fire fighting backpack for carrying, the physical strength of the fire fighter is consumed, the flexibility of the action of the fire fighter is influenced, and the fire fighting backpack is very inconvenient. When the handle is used in a place needing to be broken and disassembled, force is very difficult to apply due to the fact that the handle is short.
Disclosure of Invention
The invention aims to provide a multipurpose fire-fighting high-altitude escape auxiliary rod which is high-temperature resistant, can be matched with a high-altitude escape quick-falling rope to help firefighters to safely and quickly escape from a fire scene, can replace a portable multifunctional fire axe handle and solves the problem that the existing fire axe handle is too short and heavy.
The invention is realized by the following technical scheme:
the invention comprises a steel wire rope winding and unwinding device, a sleeve and an extension bar, and is characterized in that: the steel wire rope winding and unwinding device comprises a shell, a central shaft, a steel wire rope winding wheel, a steel wire rope and a coil spring, wherein the central shaft is connected with the shell in the shell, the steel wire rope winding wheel is sleeved on the central shaft, the coil spring is sleeved on the central shaft, one end of the steel wire rope is fixed on the steel wire rope winding wheel and wound on the steel wire rope winding wheel, the other end of the steel wire rope extends out of an opening on the side wall of the shell, a steel wire rope ring or a steel cable ring is arranged at the end part of the steel wire rope winding and unwinding device, two sides of the steel wire rope winding and unwinding device are respectively connected with a sleeve, an extension bar is arranged in the sleeve, the rear section of the extension bar is a threaded connection section, an external thread is arranged on the threaded connection section, the diameter of the external thread is larger than that of a non-threaded connection section, an internal thread matched with the external thread of the threaded connection section is arranged in a port of the sleeve, an end cover is connected with the port of the sleeve, and a central hole with the diameter of the non-threaded connection section of the extension bar and smaller than that of the threaded connection section is arranged on the end cover, a baffle plate is arranged in the end cover.
The outer shell of the steel wire rope winding and unwinding device is in a flat cylindrical shape;
the central shaft of the steel wire rope winding and unwinding device is fixedly connected with the shell, the steel wire rope winding wheel is sleeved on the central shaft and is rotatably connected with the central shaft, the inner end of the coil spring is fixed on the central shaft, and the outer end of the coil spring is connected with the steel wire rope winding wheel;
the central shaft of the steel wire rope winding and unwinding device is rotatably connected with the shell, the steel wire rope winding wheel is sleeved on the central shaft and fixedly connected with the central shaft, the inner end of the coil spring is fixed on the central shaft, and the outer end of the coil spring is connected with the shell;
when the central shaft of the steel wire rope winding and unwinding device is rotatably connected with the shell, the coil spring can be replaced by a torsion spring;
the sleeve and the extension rod are made of high-strength high-temperature-resistant light materials such as aluminum alloy or carbon fiber materials;
the end part of the non-threaded connecting section of the extension bar in at least one sleeve is provided with external threads;
the non-threaded connecting section rod body of the extension rod is provided with anti-skid patterns.
The invention has the advantages that: can be high temperature resistant, can help firefighters to safely and rapidly escape from a fire scene by matching with a high-altitude escape rapid-descent rope, and can replace a portable multifunctional fire axe handle at the same time, thereby solving the problems that the existing fire axe handle is too short and heavy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a steel wire rope winding and unwinding device.
In the figure: 1. a steel wire rope winding and unwinding device; 2. a sleeve; 3. a lengthening bar; 4. a threaded connection section; 5. an end cap; 6. a central bore; 7. a baffle plate; 8. an external thread; 11. a wire rope loop; 12. a wire rope; 13. a housing; 14. a coil spring; 15. a wire rope winding wheel; 16. a central axis.
Detailed Description
Referring to the attached drawings, the invention comprises a steel wire rope winding and unwinding device 1, a sleeve 2 and an extension rod 3, wherein the sleeve 2 and the extension rod 3 are made of light materials with high strength and high temperature resistance as far as possible, such as: aluminum alloys, carbon fibers, and the like; the steel wire rope winding and unwinding device consists of a shell 13, a central shaft 16, a steel wire rope winding wheel 15, a steel wire rope 12 and a coil spring 14, wherein the shell of the steel wire rope winding and unwinding device is in a flat cylindrical shape, the steel wire rope is a high-strength high-quality thin steel wire rope, and the length of the steel wire rope is 0.8-1.2 meters. The steel wire rope winding and unwinding device adopts one of the following two structures: one type is that the central shaft of the steel wire rope winding and unwinding device is fixedly connected with a shell, a steel wire rope winding wheel is sleeved on the central shaft and is rotatably connected with the central shaft, the inner end of a coil spring is fixed on the central shaft, the outer end of the coil spring is connected with the steel wire rope winding wheel, the other end of the coil spring extends out of an opening on the side wall of the shell, and the end part of the coil spring is provided with a steel wire rope ring 11 or is connected with a steel cable ring; the other type is that the central shaft of the steel wire rope winding and unwinding device is rotatably connected with the shell through a bearing, a steel wire rope winding wheel is sleeved on the central shaft and fixedly connected with the central shaft, the inner end of a coil spring is fixed on the central shaft, the outer end of the coil spring is connected with the shell, the other end of the coil spring extends out of an opening on the side wall of the shell, a steel wire rope ring 11 is arranged at the end part of the coil spring or is connected with a steel cable ring, and the coil spring 14 in the structure can be replaced by a torsion spring; the working principle of the steel wire rope winding and unwinding device is as follows (aiming at the first structure): when the steel wire rope is completely wound on the steel wire rope winding wheel and only the steel wire rope ring or the steel wire rope ring is arranged outside the shell, the coil spring is in a relaxed state, when the steel wire rope is pulled out of the shell by grabbing the steel wire rope ring or the steel wire rope ring, the steel wire rope winding wheel rotates, the central shaft does not rotate, the coil spring is wound tightly, directional acting force is applied to the steel wire rope winding wheel, and the steel wire rope is automatically retracted into the shell by reversely rotating the steel wire rope winding wheel under the elastic action of the coil spring as long as the steel wire rope ring or the steel wire rope ring is loosened. The second structure works in a similar manner to the first except that the wire rope winding wheel rotates synchronously with the central shaft.
Two sides of the steel wire rope winding and unwinding device are respectively connected with a sleeve 2, the length of the sleeve is 20 cm, an extension bar 3 is arranged in the sleeve, the length of the extension bar is 18 cm, the rear section of the extension bar is a threaded connection section 4, external threads are arranged on the threaded connection section, the diameter of the threaded connection section is larger than that of a non-threaded connection section, an internal thread matched with the external thread of the threaded connection section is arranged in the port of the sleeve, an end cover 5 is connected on the port of the sleeve and is in threaded connection with the sleeve, a central hole 6 with the diameter larger than the non-threaded connection section of the extension rod and smaller than the diameter of the threaded connection section is arranged on the end cover, a baffle 7 is arranged in the end cover, the baffle 7 can be a disposable hard paper baffle, the purpose is to block the central hole 6, so that the extension rod can not freely extend out of the central hole, the non-threaded connecting section rod body of the extension rod is provided with anti-skid patterns, and the end part of the non-threaded connecting section of the extension rod in at least one sleeve is provided with external threads 8.
The connection of the sleeve and the steel wire rope winding and unwinding device can adopt two modes: the first is to arrange connecting ring edges at two sides of the shell of the steel wire rope winding and unwinding device, the connecting end of the sleeve is sleeved on the connecting ring edges, and meanwhile, the connecting contact position is bonded by a high-temperature resistant strong adhesive, and the connecting ring edges can also be welded (when made of metal); the first one is to set up the spread groove that can put into wire rope winding and unwinding devices in a telescopic connection port, open a U-shaped notch on the border of spread groove to wire rope's receipts and releases, set up the internal thread at the interior edge of spread groove, set up the external screw thread that matches with the spread groove internal thread at another telescopic connection port outer edge, arrange wire rope winding and unwinding devices in the spread groove, with two telescopic for the link threaded connection, it is fixed to crowd tight wire rope winding and unwinding devices simultaneously.
The working process of the invention is as follows: when emergency escape is needed, the end cover on the sleeve is unscrewed, the blocking piece is taken out, and then the end cover is screwed on, or the paper blocking piece is directly punctured without unscrewing the end cover on the sleeve. And (3) extending the extension bar out of the central hole on the end cover, and screwing the threaded connection section and the internal thread of the sleeve, namely completing extension of the sleeve on one side and then completing extension of the sleeve on the other side. The length of the lengthened multipurpose fire-fighting high-altitude escape auxiliary rod exceeds 70 cm, the multipurpose fire-fighting high-altitude escape auxiliary rod can be obliquely clamped between a lower window frame and a side window frame of an escape window, the high-altitude escape quick-falling rope is connected to a steel wire rope ring or a steel wire rope ring, the steel wire rope is pulled out and extends out of the window, and people can turn out of the window to carry out quick-falling escape. At the moment, the steel wire rope ring or the steel wire ring of the steel wire rope is positioned outside the window, so the high-altitude escape quick-falling rope is also completely outside the window, and the problem of high-temperature burning-out does not exist.
When the multifunctional high-altitude escape auxiliary rod for fire fighting is used as the axe handle of the portable multifunctional fire fighting axe, the fire fighting axe needs to be reformed, the original axe handle is removed, a connecting pipe with internal threads and external threads is arranged at the position where the axe head is connected with the axe handle, the internal threads of the connecting pipe are matched with the external threads at the end part of the non-threaded connecting section of the extension rod, and the external threads of the connecting pipe are matched with the internal threads at the end part of the sleeve. Therefore, the portable multifunctional fire axe only has the axe part, the weight is greatly reduced when the portable multifunctional fire axe is carried, and the portable multifunctional fire axe is connected with the axe in two modes: one is to unscrew the end cover on the sleeve and directly connect the internal thread of the port of the sleeve with the external thread of the axe connecting pipe through threads; and the other method is to lengthen a sleeve on one side and then connect the external thread at the end part of the non-threaded connecting section of the lengthening rod with the internal thread of the connecting pipe of the axe through threads. The two connection modes can lead the axe handle of the fire axe to have three length choices, namely: (1) the two sleeves are not lengthened, and the length of the axe handle is more than 40 centimeters; (2) lengthening the sleeve at one side, wherein the length of the axe handle is about 60 cm; (3) the sleeves on the two sides are all lengthened, and the length of the axe handle is close to 80 cm. The length of the axe handle is adjusted according to actual needs in the fire fighting breaking and dismantling process, so that breaking and dismantling force is facilitated; when the portable multifunctional fire axe is carried, the weight is relatively light because only the axe is left, and the load of a fire fighter is also reduced. The invention is made of light materials, so the carrying is very convenient.
Claims (8)
1. The utility model provides a fire control multipurpose high altitude auxiliary rod of fleing, includes wire rope winding and unwinding devices, sleeve, extension bar, characterized by: the steel wire rope winding and unwinding device comprises a shell, a central shaft, a steel wire rope winding wheel, a steel wire rope and a coil spring, wherein the central shaft is connected with the shell in the shell, the steel wire rope winding wheel is sleeved on the central shaft, the coil spring is sleeved on the central shaft, one end of the steel wire rope is fixed on the steel wire rope winding wheel and wound on the steel wire rope winding wheel, the other end of the steel wire rope extends out of an opening on the side wall of the shell, a steel wire rope ring or a steel cable ring is arranged at the end part of the steel wire rope winding and unwinding device, two sides of the steel wire rope winding and unwinding device are respectively connected with a sleeve, an extension bar is arranged in the sleeve, the rear section of the extension bar is a threaded connection section, an external thread is arranged on the threaded connection section, the diameter of the external thread is larger than that of a non-threaded connection section, an internal thread matched with the external thread of the threaded connection section is arranged in a port of the sleeve, an end cover is connected with the port of the sleeve, and a central hole with the diameter of the non-threaded connection section of the extension bar and smaller than that of the threaded connection section is arranged on the end cover, a baffle plate is arranged in the end cover.
2. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the outer shell of the steel wire rope winding and unwinding device is in a flat cylindrical shape.
3. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the central shaft of the steel wire rope winding and unwinding device is fixedly connected with the shell, the steel wire rope winding wheel is sleeved on the central shaft and is rotatably connected with the central shaft, the inner end of the coil spring is fixed on the central shaft, and the outer end of the coil spring is connected with the steel wire rope winding wheel.
4. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the central shaft of the steel wire rope winding and unwinding device is rotatably connected with the shell, the steel wire rope winding wheel is sleeved on the central shaft and fixedly connected with the central shaft, the inner end of the coil spring is fixed on the central shaft, and the outer end of the coil spring is connected with the shell.
5. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 4, wherein: the coil spring may be replaced by a torsion spring.
6. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the sleeve and the extension rod are made of aluminum alloy or carbon fiber material.
7. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the end of the non-threaded connecting section of the extension bar in at least one sleeve is provided with external threads.
8. The multipurpose fire-fighting high-altitude escape auxiliary rod as recited in claim 1, which is characterized in that: the non-threaded connecting section rod body of the extension rod is provided with anti-skid patterns.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024426.5A CN114247062A (en) | 2022-01-11 | 2022-01-11 | Multipurpose high-altitude escape auxiliary rod for fire fighting |
| CN202222750734.4U CN219251477U (en) | 2022-01-11 | 2022-10-19 | Fire-fighting multipurpose high-altitude escape auxiliary rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210024426.5A CN114247062A (en) | 2022-01-11 | 2022-01-11 | Multipurpose high-altitude escape auxiliary rod for fire fighting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114247062A true CN114247062A (en) | 2022-03-29 |
Family
ID=80796369
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210024426.5A Withdrawn CN114247062A (en) | 2022-01-11 | 2022-01-11 | Multipurpose high-altitude escape auxiliary rod for fire fighting |
| CN202222750734.4U Active CN219251477U (en) | 2022-01-11 | 2022-10-19 | Fire-fighting multipurpose high-altitude escape auxiliary rod |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222750734.4U Active CN219251477U (en) | 2022-01-11 | 2022-10-19 | Fire-fighting multipurpose high-altitude escape auxiliary rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN114247062A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440261A (en) * | 1980-11-21 | 1984-04-03 | Clark Mark J | Portable high-rise escape device |
| JPH1118226A (en) * | 1997-06-20 | 1999-01-22 | Minoru Tagami | Expansion rod device and method for expanding/ contacting expansion body of the same |
| CN2468510Y (en) * | 2001-03-22 | 2002-01-02 | 华东理工大学 | Centrifugal and friction type device for rescuing from fire from high building |
| KR20070029314A (en) * | 2005-09-09 | 2007-03-14 | 오성균 | Assistant handle with hammer |
| US20070283503A1 (en) * | 2006-06-08 | 2007-12-13 | Ryan Gregory F | Firefighter's escape implement |
| CN102935268A (en) * | 2012-11-20 | 2013-02-20 | 青岛亿和海丽安防科技有限公司 | Safety belt capable of storing descent control device |
| CN103520846A (en) * | 2012-07-03 | 2014-01-22 | 常熟南师大发展研究院有限公司 | Escape sliding cable between floors |
| CN111238302A (en) * | 2020-03-16 | 2020-06-05 | 安徽蓝剑警用装备制造有限公司 | Telescopic spontoon |
| CN210963620U (en) * | 2019-10-17 | 2020-07-10 | 江苏多元航空科技有限公司 | High altitude rescue shelter bridge |
| CN211659121U (en) * | 2019-09-29 | 2020-10-13 | 天津宇斯科技发展有限公司 | Combined fire-fighting tool |
| CN211863603U (en) * | 2020-03-30 | 2020-11-06 | 诺盾科技有限公司 | Flashlight type multifunctional emergency fire fighting device |
| CN112156386A (en) * | 2020-09-11 | 2021-01-01 | 郭毛孩 | Remote positioning survival device for jungle survival and rescue |
| CN214807991U (en) * | 2021-04-29 | 2021-11-23 | 天津物华天宝科技有限公司 | Air conditioner maintenance anti-falling device |
-
2022
- 2022-01-11 CN CN202210024426.5A patent/CN114247062A/en not_active Withdrawn
- 2022-10-19 CN CN202222750734.4U patent/CN219251477U/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4440261A (en) * | 1980-11-21 | 1984-04-03 | Clark Mark J | Portable high-rise escape device |
| JPH1118226A (en) * | 1997-06-20 | 1999-01-22 | Minoru Tagami | Expansion rod device and method for expanding/ contacting expansion body of the same |
| CN2468510Y (en) * | 2001-03-22 | 2002-01-02 | 华东理工大学 | Centrifugal and friction type device for rescuing from fire from high building |
| KR20070029314A (en) * | 2005-09-09 | 2007-03-14 | 오성균 | Assistant handle with hammer |
| US20070283503A1 (en) * | 2006-06-08 | 2007-12-13 | Ryan Gregory F | Firefighter's escape implement |
| CN103520846A (en) * | 2012-07-03 | 2014-01-22 | 常熟南师大发展研究院有限公司 | Escape sliding cable between floors |
| CN102935268A (en) * | 2012-11-20 | 2013-02-20 | 青岛亿和海丽安防科技有限公司 | Safety belt capable of storing descent control device |
| CN211659121U (en) * | 2019-09-29 | 2020-10-13 | 天津宇斯科技发展有限公司 | Combined fire-fighting tool |
| CN210963620U (en) * | 2019-10-17 | 2020-07-10 | 江苏多元航空科技有限公司 | High altitude rescue shelter bridge |
| CN111238302A (en) * | 2020-03-16 | 2020-06-05 | 安徽蓝剑警用装备制造有限公司 | Telescopic spontoon |
| CN211863603U (en) * | 2020-03-30 | 2020-11-06 | 诺盾科技有限公司 | Flashlight type multifunctional emergency fire fighting device |
| CN112156386A (en) * | 2020-09-11 | 2021-01-01 | 郭毛孩 | Remote positioning survival device for jungle survival and rescue |
| CN214807991U (en) * | 2021-04-29 | 2021-11-23 | 天津物华天宝科技有限公司 | Air conditioner maintenance anti-falling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN219251477U (en) | 2023-06-27 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220329 |