WO2021155449A1 - Mecanismo premente para embalagens diversas extrator de produtos fluídicos - Google Patents
Mecanismo premente para embalagens diversas extrator de produtos fluídicos Download PDFInfo
- Publication number
- WO2021155449A1 WO2021155449A1 PCT/BR2020/050025 BR2020050025W WO2021155449A1 WO 2021155449 A1 WO2021155449 A1 WO 2021155449A1 BR 2020050025 W BR2020050025 W BR 2020050025W WO 2021155449 A1 WO2021155449 A1 WO 2021155449A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drive rod
- diameter
- annular
- bellows
- check valve
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
- B05B11/1023—Piston pumps having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1038—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber
- B05B11/104—Pressure accumulation pumps, i.e. pumps comprising a pressure accumulation chamber the outlet valve being opened by pressure after a defined accumulation stroke
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/16—Actuating means
- B65D83/20—Actuator caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
- B05B11/1067—Pump inlet valves actuated by pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1066—Pump inlet valves
- B05B11/1067—Pump inlet valves actuated by pressure
- B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1074—Springs located outside pump chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1073—Springs
- B05B11/1077—Springs characterised by a particular shape or material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/28—Nozzles, nozzle fittings or accessories specially adapted therefor
- B65D83/30—Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of the dispensed content, e.g. funnels or hoods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/32—Dip-tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/02—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having bellows
Definitions
- the present invention refers to technical and functional improvements introduced in a particular type of pump (pump) with a bellows element with elastic memory that, when activated, establishes sufficient internal pressure to displace the fluidic product from within out of the packaging, making it an ideal mechanism to be used in different packaging of various products in different states of aggregation, notably liquids, oily and creamy and semi-solids, as with various cosmetics, whether for beautification, for purposes therapeutic or both, some also known as cosmeceuticals whose action is similar to drugs.
- pump pump
- bellows element with elastic memory that, when activated, establishes sufficient internal pressure to displace the fluidic product from within out of the packaging, making it an ideal mechanism to be used in different packaging of various products in different states of aggregation, notably liquids, oily and creamy and semi-solids, as with various cosmetics, whether for beautification, for purposes therapeutic or both, some also known as cosmeceuticals whose action is similar to drugs.
- a capsular body with several integrated parts that is, on the upper external side, it includes means for sealing the assembly inside the neck of any packaging, while, on the internal side, it has a first integrated part in the form of a cylinder, where a piston and respective rod slides of actuation tubular, whose exposed upper end is coupled with a actuation button/applicator nozzle, below which the upper end of a actuation bellows with elastic memory is fixed, whose lower end is fitted and supported on the corresponding part of the capsular body , so that said rod can be moved downwards when pressing the activation button and automatically return when said button is no longer pressed, consequently, the piston moves up and down in the same way, and these movements, combined with lower valves, allows a dose of product to be positioned and pressed into the capsular body chamber and With that, said dose of product travels along the tubular rod to be dispensed into the button/applicator nozzle.
- FIGURE 01 represents a perspective showing the assembly mounted at an anterosuperior angle
- FIGURE 02 shows a perspective showing the assembly mounted at an anteroinferior angle
- FIGURE 03 illustrates a front elevation view with the indication of a cutting line
- FIGURE 04 is an enlarged view of the section indicated in Figure 3;
- FIGURE 05 shows an enlarged isometric view of the section indicated in Figure 3;
- FIGURE 06 represents an exploded perspective showing the assembly at an anterosuperior angle and according to the section indicated in Figure 3;
- FIGURE 07 is another exploded perspective, however, showing the assembly at an anterosuperior angle
- FIGURE 08 shows another exploded perspective, however, showing the set at an anteroinferior angle
- FIGURE 09 represents a cut and enlarged details in perspective highlighting the lower check valve and the device body
- FIGURE 10 shows a cut and enlarged perspective details highlighting the bellows support cover assembly
- FIGURE 11 represents a cut and enlarged details in perspective highlighting the bellows
- FIGURE 12 shows a cut and enlarged details in perspective highlighting the device activation button/spout
- FIGURE 13 illustrates a cut and enlarged details in perspective highlighting the device's plunger
- FIGURE 14 is a section and enlarged details in perspective highlighting another check valve of the device.
- FIGURES 15 and 16 show the same cut indicated in figure 3, however, in figure 16 the device was activated, illustrating its operation.
- the present invention PRESSING MECHANISM FOR DIFFERENT PACKAGING FLUID PRODUCTS EXTRACTOR, comprises capsular body (1), tubular, in which it is mounted a drive rod (2), substantially hollow (3), slidably mounted to perform downward and upward movements with spring and return provided by a bellows (4) with elastic memory, this having the upper end coupled to the corresponding part of said drive rod (2) by means of a locking ring (5), above which it is also coupled to a button/spout (6), while the lower end of said bellows (4) is supported on the capsular body (1), where said rod is slidably guided by an annular cap (7), locked in the inner diameter of the capsular body (1) and below which the lower end of said actuating rod (2) has a piston (8 ) followed the inferiorly by a check valve (9), the latter capable of moving away or abutting in a watertight manner on the underside of the piston (8)
- the capsular body (1) has an intermediate tubular section that configures a cylindrical jacket (13) for sliding the piston (8), with the tapered lower end (14), followed by another tubular section ( 15) of smaller diameter, in which in the first, its internal frusto-conical surface configures a sealing seat (16), below which there is a strangulation in the form of radial teeth (17) extended downwards in the form of fillets (18), retainers of the neck (19) of said second check valve (12) which, below such neck (18) has a circular stop (20) that acts against the radial teeth (17) and between the threads (18), while on the side
- the upper one has a cone-shaped sealing head (21) in the form of a cup, which opens or closes the sealing seat (16) in a watertight manner and, for this purpose, said neck (19) has sufficient height for said valve (12 ) can be moved up or down in short movements and these moves are limited together with the radial teeth (17) and the circular stop (20) and the tapered sealing head (
- the capsular body (1) has an equally tubular upper section of larger diameter (22), inferiorly limited by an external flange (23) and, at this point, configures an internal step (24), as also said section of larger diameter (22) internally has an annular groove (25) which, together with the step (24), configures fitting and locking for the annular cover (7) which, in turn, has a circular external section (26) with an outer rib (27) also circular locking that penetrates with interference in the annular groove (25), while on the inner side said annular cover (7) is cast through a guide hole (28) for sliding the drive rod (two).
- the ends of the bellows (4) are circular (29) and include the respective steps (30), so that the lower end can be fitted over the capsular body (1), where there is a corresponding step defined by the annular cover (7) slightly recessed inwards, while at the upper end said bellows is also fitted to the locking ring (5) which, for this purpose, externally presents a circular collar (31) with a "U" shape inverted, which configures an equally circular fit (32) for the upper end of the bellows (4), while on the inner side it presents a tubular-shaped section (33) with a groove (34) for fitting and locking for the corresponding end of the drive rod (2 ), so that said locking ring (5) can be moved downwards and upwards together with said actuating rod (2) and, consequently, such movement also actuates said bellows (4) establishing pressure or suction in the hollow part (3) of the actuating rod (2).
- the drive rod (2) has its upper end exposed above the locking ring (5) and, in this section, its diameter includes an equally annular thread (35) for locking the spout button (6) which, for this purpose, has an internal tube (36) with an annular channel (37) for locking the annular thread (35), as well as said button/spout has another external concentric wall (38) closed superiorly (39) and, at this point, it has an internal horizontal channel (40) that ends radially in a spout (41), while on the opposite side it is interconnected with the interior of the section in the tubular form (33) and with the hollow part (3), configuring thus the output channel of the product.
- the drive rod (2) has in its lower third a stop flange (42) below which the piston (8) is slidably mounted, which, in turn, has two internal diameters, a smaller lower (43) and a larger upper (44) forming between them a stop step (45).
- the thicker lower part of the piston (8) has two "V" channels, an upper (46) and a lower (47) channel, which result in three annular sealing lips, two on the outside diameter ( 48a - 48b) and one on the inner diameter (49), the latter is oriented to close or open an intermediate passage (50), transverse, provided at the lower end of the drive rod (2) and which interconnects the chamber (11) and the hollow part (3) of said drive rod (2), the closing and opening courses being defined by that stop flange (42) and the stop step (45), as well as the watertight effect of the annular lip of sealing is carried out in conjunction with the check valve (9).
- the check valve (9) is illustrated in detail in Figure 14, from which it can be seen that it is ordinarily shaped like a cup, having a bottom wall (51) and a cylindrical wall (52) in which the the first centralizes a hole (53) for fitting and fixing the lower end of the drive rod (2) which, for this purpose, has a locking penetrating tip (54), while the other cylindrical wall (52) has its base with spacer segments (55) that fit in the inner diameter of the cylindrical jacket (13) and allow the product to pass between them.
- the cylindrical wall (52) has its upper edge in the form of a wedge (56) oriented to penetrate between the sealing lips (48b) and (49), consequently, it exerts some pressure on both lips in order to ensure the tightness of the intermediate passage (50).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Basic Packing Technique (AREA)
- Closures For Containers (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2020/050025 WO2021155449A1 (pt) | 2020-02-04 | 2020-02-04 | Mecanismo premente para embalagens diversas extrator de produtos fluídicos |
CA3166793A CA3166793A1 (en) | 2020-02-04 | 2020-02-04 | Pressing mechanism for miscellaneous packs dispensing fluidic products |
JP2022547131A JP7464731B2 (ja) | 2020-02-04 | 2020-02-04 | 種々のパックの流動性製品を分注するための押圧機構 |
PE2022001162A PE20221670A1 (es) | 2020-02-04 | 2020-02-04 | Mecanismo de presion para diversos empaques extractor de productos fluidicos |
KR1020227027405A KR20220133905A (ko) | 2020-02-04 | 2020-02-04 | 다양한 패키징용의 유동성 제품을 추출하기 위한 가압 장치 |
MX2022007898A MX2022007898A (es) | 2020-02-04 | 2020-02-04 | Mecanismo de presion para diversos empaques que dispensan productos fluidicos. |
US17/796,766 US12121918B2 (en) | 2020-02-04 | 2020-02-04 | Compressible mechanism for extracting fluid products for a range of packaging |
BR112022011205A BR112022011205A2 (pt) | 2020-02-04 | 2020-02-04 | Mecanismo premente para embalagens diversas extrator de produtos fluídicos. |
EP20917564.5A EP4101785A4 (en) | 2020-02-04 | 2020-02-04 | COMPRESSIVE MECHANISM FOR EXTRACTING LIQUID PRODUCTS FOR A RANGE OF PACKAGING |
CN202080095575.XA CN115038650B (zh) | 2020-02-04 | 2020-02-04 | 用于各种包装的抽取流体产品的按压机构 |
CONC2022/0009809A CO2022009809A2 (es) | 2020-02-04 | 2022-07-13 | Mecanismo compresible para la extracción de productos fluídicos para una gama de embalajes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2020/050025 WO2021155449A1 (pt) | 2020-02-04 | 2020-02-04 | Mecanismo premente para embalagens diversas extrator de produtos fluídicos |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021155449A1 true WO2021155449A1 (pt) | 2021-08-12 |
Family
ID=77199675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2020/050025 WO2021155449A1 (pt) | 2020-02-04 | 2020-02-04 | Mecanismo premente para embalagens diversas extrator de produtos fluídicos |
Country Status (11)
Country | Link |
---|---|
US (1) | US12121918B2 (pt) |
EP (1) | EP4101785A4 (pt) |
JP (1) | JP7464731B2 (pt) |
KR (1) | KR20220133905A (pt) |
CN (1) | CN115038650B (pt) |
BR (1) | BR112022011205A2 (pt) |
CA (1) | CA3166793A1 (pt) |
CO (1) | CO2022009809A2 (pt) |
MX (1) | MX2022007898A (pt) |
PE (1) | PE20221670A1 (pt) |
WO (1) | WO2021155449A1 (pt) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113511418A (zh) * | 2021-08-16 | 2021-10-19 | 深圳市通产丽星科技集团有限公司 | 一种按压泵及包装容器 |
EP3960303B1 (en) * | 2020-08-24 | 2024-06-05 | Samhwa Co., Ltd | Pump for spraying liquid |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220133905A (ko) * | 2020-02-04 | 2022-10-05 | 에릭 젬브로드 | 다양한 패키징용의 유동성 제품을 추출하기 위한 가압 장치 |
US20230173518A1 (en) * | 2020-04-07 | 2023-06-08 | Samhwa Co., Ltd | Pump cap |
MX2022015035A (es) * | 2020-05-29 | 2023-01-04 | Rpc Bramlage Gmbh | Bomba para dispensar un fluido. |
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KR20220133905A (ko) * | 2020-02-04 | 2022-10-05 | 에릭 젬브로드 | 다양한 패키징용의 유동성 제품을 추출하기 위한 가압 장치 |
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2020
- 2020-02-04 KR KR1020227027405A patent/KR20220133905A/ko not_active Ceased
- 2020-02-04 US US17/796,766 patent/US12121918B2/en active Active
- 2020-02-04 MX MX2022007898A patent/MX2022007898A/es unknown
- 2020-02-04 BR BR112022011205A patent/BR112022011205A2/pt unknown
- 2020-02-04 JP JP2022547131A patent/JP7464731B2/ja active Active
- 2020-02-04 PE PE2022001162A patent/PE20221670A1/es unknown
- 2020-02-04 WO PCT/BR2020/050025 patent/WO2021155449A1/pt active Application Filing
- 2020-02-04 EP EP20917564.5A patent/EP4101785A4/en active Pending
- 2020-02-04 CN CN202080095575.XA patent/CN115038650B/zh active Active
- 2020-02-04 CA CA3166793A patent/CA3166793A1/en active Pending
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2022
- 2022-07-13 CO CONC2022/0009809A patent/CO2022009809A2/es unknown
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3960303B1 (en) * | 2020-08-24 | 2024-06-05 | Samhwa Co., Ltd | Pump for spraying liquid |
CN113511418A (zh) * | 2021-08-16 | 2021-10-19 | 深圳市通产丽星科技集团有限公司 | 一种按压泵及包装容器 |
Also Published As
Publication number | Publication date |
---|---|
PE20221670A1 (es) | 2022-10-27 |
US20230074980A1 (en) | 2023-03-09 |
US12121918B2 (en) | 2024-10-22 |
KR20220133905A (ko) | 2022-10-05 |
MX2022007898A (es) | 2022-07-19 |
EP4101785A4 (en) | 2023-11-01 |
JP2023520965A (ja) | 2023-05-23 |
CA3166793A1 (en) | 2021-08-12 |
EP4101785A1 (en) | 2022-12-14 |
JP7464731B2 (ja) | 2024-04-09 |
CN115038650B (zh) | 2024-02-13 |
CO2022009809A2 (es) | 2022-08-09 |
BR112022011205A2 (pt) | 2022-08-23 |
CN115038650A (zh) | 2022-09-09 |
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