EP3975708A1 - An aerosol spraying device - Google Patents

An aerosol spraying device

Info

Publication number
EP3975708A1
EP3975708A1 EP20757976.4A EP20757976A EP3975708A1 EP 3975708 A1 EP3975708 A1 EP 3975708A1 EP 20757976 A EP20757976 A EP 20757976A EP 3975708 A1 EP3975708 A1 EP 3975708A1
Authority
EP
European Patent Office
Prior art keywords
reservoir
nebuliser
working
supplying
supply
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.)
Pending
Application number
EP20757976.4A
Other languages
German (de)
French (fr)
Inventor
Lukas POLACZEK
Irena POLACZEK
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3975708A1 publication Critical patent/EP3975708A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K51/00—Appliances for treating beehives or parts thereof, e.g. for cleaning or disinfecting

Definitions

  • the subject of the invention is an aerosol spraying device, featuring a nebuliser and a control unit, intended for protective treatment procedures, particularly in beekeeping.
  • German patent application No. DE 102017205468 a device and a method for pest and parasite control, particularly in a beehive, based on the use of at least one sensor and spraying, as controlled by the sensor, of a liquid agent and the use of an ultrasonic nebuliser for controlled supply of the agent into the area covered with the procedure.
  • German application description No. DE 202009002120 a device for pest and parasite control, particularly in a beehive, through evaporation of a chemical agent designed for this purpose, with a reservoir for this agent and an electrically initiated - by the control unit - dosing pump, where a membrane nebuliser has been used as the unit executing the controlled process of transferring the threat control agent to the element of the device, where the agent undergoes gasification and evaporation into the surrounding.
  • German patent application No. DE 102013214609 a device and a method for pest and parasite control, particularly in a beehive, through evaporation of a chemical agent sprayed under pressure generated by an electrochemical gas generator cell.
  • the following is known from the German description No. DE 102017103338: a device and a method for pest and parasite control, particularly in a beehive.
  • the device is a long-term evaporator for continuous liquid evaporation, particularly for evaporation of formic acid for the purpose of Varroa destructor control, using a wick.
  • polish patent document No. 165730 a device for pest control and parasitic diseases prevention in bees and maggots, particularly varroosis, which consists of a rectangular chamber with ventilation ducts in its walls and a manipulator installed above this chamber.
  • a device for pest control and parasitic diseases prevention in bees and maggots, particularly varroosis which consists of a rectangular chamber with ventilation ducts in its walls and a manipulator installed above this chamber.
  • radioactive powder atomisers or radioactivity sources In the chamber mounted on a beehive, there are evenly spaced radioactive powder atomisers or radioactivity sources and at the ventilation slots there are the following elements: a fan, heaters and contact thermometers connected, via control lamps and switches, with a safe voltage source.
  • polish protection document for a utility model No. 64126 an instrument for Varroa Jacobsoni control in bees intended for fumigation of a beehive through the use of an incandescent medicinal tablet placed inside the instrument and through inserting a nozzle into the beehive and starting an electric motor driving the fan, which pushes air into the beehive along with the medicine released from the incandescent tablet.
  • the essence of the aerosol spraying device in the case of which the working medium (liquid) used in the procedure is sprayed by the nebuliser, featuring a spraying cycle controller, is that it consists of a supplying reservoir with an outlet located below the 1/3 of the height of the reservoir, which is connected with the working reservoir, where the nebuliser is installed.
  • a watertight supply and control chamber is installed adjacent to the working reservoir; the chamber includes a power supply and a circuit for controlling the work cycle of the device, with both those elements being connected with the nebuliser by means of electric wires.
  • the above described design enables automatic refilling of the chamber of the working reservoir with the working medium, as it is gradually consumed in the course of the nebulisation or evaporation process, by feeding the working medium from the supplying reservoir as the level of the working medium in the working reservoir chamber decreases.
  • the dose of the working medium supplied from the supplying reservoir in the above described manner restores the liquid level in the working reservoir, the level of the working medium increases and stabilises and thus the supply of the working medium from the supplying reservoir is stopped.
  • the supplying reservoir and the supply and control camber are half-cylindrical with their planes facing opposite directions, towards external lateral planes of the contour of the device, while the semicircular walls of these half-cylinders face the area above the nebuliser.
  • the above-mentioned shape of the elements improves the circulation of the spray generated through the nebulisation process and increases its fall area.
  • the bottom of the supplying reservoir is inclined, i.e. it slopes down towards the outlet.
  • the working medium flows down freely, i.e. as affected by gravity, stays at the lowest point of the reservoir and through the outlet, it flows out of the reservoir, which ensures an improved effectiveness of the process and limits losses of the working medium.
  • the work cycle controller for the device features a micro-processor for controlling the operation of the nebuliser according to a program saved in the internal, non volatile memory.
  • the controller can operate without the help of sensors based on the dedicated program designed specifically for the purpose for which the device is intended for.
  • the working reservoir has its top wall, separating its internal, working, area from the external area surrounding the device and the plane of the top wall of the working reservoir, there is the outlet, located centrally above the nebuliser, which enables free flow of the spray (aerosol), produced in the working reservoir by the nebuliser, into the external surrounding of the device.
  • the outlet features a mesh screen.
  • the spray (aerosol) of the working medium can travel freely outside of the working reservoir and into the target surrounding area, where the working medium should get.
  • the process is executed through the outlet with a mesh screen made of a protective plastic mesh with mesh size suitable for free and unobstructed flow of the spray of the working medium outside of the reservoir; at the same time, the mesh screen prevents bees and larger contaminants from getting into the working reservoir.
  • the mesh screen is made of plastic.
  • the mesh screen is made of metal.
  • the supplying reservoir, the working reservoir as well as the supply and control chamber are placed on a rigid, quadrangular base.
  • the design of the base ensures its secure positioning in a beehive or in another location and enables effective fall of the spray below the base level.
  • the optional design features the working reservoir extended on one side by an additional lateral space, above which there is a connection with the supplying reservoir attached to the top frame.
  • the bottom of the working reservoir is inclined and slopes down towards the place, where the nebuliser is installed. Thanks to the bottom of the working reservoir being shaped in this fashion, the working medium is free to flow down the working reservoir, i.e. as it is affected by gravity, and stays at the lowest point of the reservoir, where there is the nebuliser drawing in the liquid working medium and producing its spray (aerosol), which subsequently is sprayed and released from the working reservoir through the outlet.
  • the design of the device described in the application is not excessively complicated, it is efficient, and it does not require substantial funds or extensive technical expertise.
  • the aerosol spraying device in question offers a simple design, it is less expensive to build and use and it is reliable.
  • the device consists of a half-cylindrical supplying reservoir 1 made of plastic, with the working medium inside and a round outlet 2, the distance between the centre of the outlet and the bottom of the reservoir is equal to 1/8 of its height, a working reservoir 3 made of plastic, in the shape of a hollow cylinder, with an ultrasonic nebuliser 4 inside and a half-cylindrical, watertight supply and control chamber 5 made of plastic with a microprocessor-based control unit 6 and a power supply 7 installed inside.
  • the nebuliser can float due to the buoyant force.
  • the supplying reservoir 1 , the working reservoir 3 and the supply and control chamber 5 are mounted with snap fasteners on a rigid, rectangular base with a lattice surface made of plastic, the surfaces of the supplying reservoir 1 and the supply and control chamber 5 are facing the opposite directions - towards the external, lateral planes of the contour of the device, and the semicircular walls of these half-cylinders are facing the area above the nebuliser.
  • the supplying reservoir 1 is connected with the working reservoir 3 with a threaded connector 10 with an orifice forming a flow-through channel between the two reservoirs.
  • the working medium is dispensed gravitationally from the supplying reservoir 1 into the working reservoir 3, where its quantity is constantly maintained in this manner and the height of the column of liquid, adequate for the correct operation of the nebuliser 4, is maintained.
  • the outlet is located centrally above the nebuliser 4 and features a mesh screen 9 made of industrial-grade PE mesh with diamond-shaped orifices and a mesh size of (5 x 5) mm.
  • the bottom of the supplying reservoir 1 is made in such a manner that its surface is inclined and slopes down towards the outlet 2.
  • the water-tight supply and control chamber 5, with the controller featuring a microprocessor- based electronic circuit 6 designed to control the work cycle of the nebuliser according to a program saved in the internal, non-volatile memory and a power supply 7 inside, is adjacent to the lateral surface of the working reservoir 3. Through the orifices in the surfaces of the contacting walls, electrical wires have been routed 8, which connect the nebuliser 4 with the control unit 6 and the power supply 7.
  • the outlet is positioned centrally above the nebuliser 4 and features a metal mesh screen 9 made of galvanised wire.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Catching Or Destruction (AREA)
  • Special Spraying Apparatus (AREA)
  • Nozzles (AREA)

Abstract

A device for spraying aerosol, in the case of which the working medium (liquid) used in the treatment procedure is sprayed by a nebuliser (4), featuring a spraying cycle controller, consists of a supplying reservoir (1) with an out-let (2), positioned below 1/3 of the height of the reservoir and connected with the working reservoir (3), with the nebuliser installed inside, with a water-tight supply and control chamber (5) adjacent to the working reservoir (3) - the chamber features a power supply (7) and a device work cycle controller (6) with both of these elements connected with the nebuliser (4) by means of electric wires (8).

Description

l
An aerosol spraying device
The subject of the invention is an aerosol spraying device, featuring a nebuliser and a control unit, intended for protective treatment procedures, particularly in beekeeping.
The following are known from the German patent application No. DE 102017205468: a device and a method for pest and parasite control, particularly in a beehive, based on the use of at least one sensor and spraying, as controlled by the sensor, of a liquid agent and the use of an ultrasonic nebuliser for controlled supply of the agent into the area covered with the procedure.
The following is known from the German application description No. DE 202009002120: a device for pest and parasite control, particularly in a beehive, through evaporation of a chemical agent designed for this purpose, with a reservoir for this agent and an electrically initiated - by the control unit - dosing pump, where a membrane nebuliser has been used as the unit executing the controlled process of transferring the threat control agent to the element of the device, where the agent undergoes gasification and evaporation into the surrounding.
The following is known from the German patent application No. DE 102013214609: a device and a method for pest and parasite control, particularly in a beehive, through evaporation of a chemical agent sprayed under pressure generated by an electrochemical gas generator cell.
The following is known from the German description No. DE 102017103338: a device and a method for pest and parasite control, particularly in a beehive. The device is a long-term evaporator for continuous liquid evaporation, particularly for evaporation of formic acid for the purpose of Varroa destructor control, using a wick.
The following is known from the Polish patent document No. 165730: a device for pest control and parasitic diseases prevention in bees and maggots, particularly varroosis, which consists of a rectangular chamber with ventilation ducts in its walls and a manipulator installed above this chamber. In the chamber mounted on a beehive, there are evenly spaced radioactive powder atomisers or radioactivity sources and at the ventilation slots there are the following elements: a fan, heaters and contact thermometers connected, via control lamps and switches, with a safe voltage source.
It is known from the Polish protection document for a utility model No. 64126: an instrument for Varroa Jacobsoni control in bees intended for fumigation of a beehive through the use of an incandescent medicinal tablet placed inside the instrument and through inserting a nozzle into the beehive and starting an electric motor driving the fan, which pushes air into the beehive along with the medicine released from the incandescent tablet.
The above mentioned devices (with the exception of the instrument covered with the utility model No. 64126) are relatively complex in terms of their construction and are technically advanced (numerous sensors used for the purpose of measurement and analysis of various physical values as well as numerous controllers for the execution of actions related to the process) and thus they are quite difficult to build for a person of average technical skills. What is more, the required financial outlays are also relatively high.
The essence of the aerosol spraying device, in the case of which the working medium (liquid) used in the procedure is sprayed by the nebuliser, featuring a spraying cycle controller, is that it consists of a supplying reservoir with an outlet located below the 1/3 of the height of the reservoir, which is connected with the working reservoir, where the nebuliser is installed. A watertight supply and control chamber is installed adjacent to the working reservoir; the chamber includes a power supply and a circuit for controlling the work cycle of the device, with both those elements being connected with the nebuliser by means of electric wires.
The above described design enables automatic refilling of the chamber of the working reservoir with the working medium, as it is gradually consumed in the course of the nebulisation or evaporation process, by feeding the working medium from the supplying reservoir as the level of the working medium in the working reservoir chamber decreases. The dose of the working medium supplied from the supplying reservoir in the above described manner restores the liquid level in the working reservoir, the level of the working medium increases and stabilises and thus the supply of the working medium from the supplying reservoir is stopped.
Expediently, the supplying reservoir and the supply and control camber are half-cylindrical with their planes facing opposite directions, towards external lateral planes of the contour of the device, while the semicircular walls of these half-cylinders face the area above the nebuliser. The above-mentioned shape of the elements improves the circulation of the spray generated through the nebulisation process and increases its fall area.
Expediently, the bottom of the supplying reservoir is inclined, i.e. it slopes down towards the outlet. With the bottom of the reservoir shaped in such a manner, the working medium flows down freely, i.e. as affected by gravity, stays at the lowest point of the reservoir and through the outlet, it flows out of the reservoir, which ensures an improved effectiveness of the process and limits losses of the working medium.
Expediently, the work cycle controller for the device, installed in the supply and control chamber, features a micro-processor for controlling the operation of the nebuliser according to a program saved in the internal, non volatile memory. The controller can operate without the help of sensors based on the dedicated program designed specifically for the purpose for which the device is intended for.
Expediently, the working reservoir has its top wall, separating its internal, working, area from the external area surrounding the device and the plane of the top wall of the working reservoir, there is the outlet, located centrally above the nebuliser, which enables free flow of the spray (aerosol), produced in the working reservoir by the nebuliser, into the external surrounding of the device. Expediently, the outlet features a mesh screen.
The spray (aerosol) of the working medium can travel freely outside of the working reservoir and into the target surrounding area, where the working medium should get.
The process is executed through the outlet with a mesh screen made of a protective plastic mesh with mesh size suitable for free and unobstructed flow of the spray of the working medium outside of the reservoir; at the same time, the mesh screen prevents bees and larger contaminants from getting into the working reservoir.
Expediently, the mesh screen is made of plastic.
Expediently, the mesh screen is made of metal.
Expediently, the supplying reservoir, the working reservoir as well as the supply and control chamber are placed on a rigid, quadrangular base. The design of the base ensures its secure positioning in a beehive or in another location and enables effective fall of the spray below the base level.
The optional design features the working reservoir extended on one side by an additional lateral space, above which there is a connection with the supplying reservoir attached to the top frame.
Expediently, the bottom of the working reservoir is inclined and slopes down towards the place, where the nebuliser is installed. Thanks to the bottom of the working reservoir being shaped in this fashion, the working medium is free to flow down the working reservoir, i.e. as it is affected by gravity, and stays at the lowest point of the reservoir, where there is the nebuliser drawing in the liquid working medium and producing its spray (aerosol), which subsequently is sprayed and released from the working reservoir through the outlet.
The design of the device described in the application is not excessively complicated, it is efficient, and it does not require substantial funds or extensive technical expertise. The aerosol spraying device in question offers a simple design, it is less expensive to build and use and it is reliable.
The invention is demonstrated and explained in the following execution examples and in the Figure - example 1 in Fig. 1 -2 and Example 2 in Fig. 3-4. List of elements indicated in the Figure
1 - Supplying reservoir
2 - Outlet of the supplying reservoir
3 - Working reservoir
4 - Ultrasonic nebuliser
5 - Supply and control chamber
6 - Microprocessor based controller
7 - Power supply
8 - Electric wires
9 - Mesh screen
10 - Threaded connector
Example 1
A device for spraying aerosol of a working medium (liquid) featuring a nebuliser and a control unit, intended for protective treatment, particularly in beekeeping; the device consists of a half-cylindrical supplying reservoir 1 made of plastic, with the working medium inside and a round outlet 2, the distance between the centre of the outlet and the bottom of the reservoir is equal to 1/8 of its height, a working reservoir 3 made of plastic, in the shape of a hollow cylinder, with an ultrasonic nebuliser 4 inside and a half-cylindrical, watertight supply and control chamber 5 made of plastic with a microprocessor-based control unit 6 and a power supply 7 installed inside. The nebuliser can float due to the buoyant force. The supplying reservoir 1 , the working reservoir 3 and the supply and control chamber 5 are mounted with snap fasteners on a rigid, rectangular base with a lattice surface made of plastic, the surfaces of the supplying reservoir 1 and the supply and control chamber 5 are facing the opposite directions - towards the external, lateral planes of the contour of the device, and the semicircular walls of these half-cylinders are facing the area above the nebuliser.
The supplying reservoir 1 is connected with the working reservoir 3 with a threaded connector 10 with an orifice forming a flow-through channel between the two reservoirs. The working medium is dispensed gravitationally from the supplying reservoir 1 into the working reservoir 3, where its quantity is constantly maintained in this manner and the height of the column of liquid, adequate for the correct operation of the nebuliser 4, is maintained. There is an outlet in the top surface of the working reservoir 3 for releasing, outside of the reservoir, the spray (aerosol) produced from the working medium by the ultrasonic nebuliser 4 submerged in the working medium. The outlet is located centrally above the nebuliser 4 and features a mesh screen 9 made of industrial-grade PE mesh with diamond-shaped orifices and a mesh size of (5 x 5) mm. The bottom of the supplying reservoir 1 is made in such a manner that its surface is inclined and slopes down towards the outlet 2. The water-tight supply and control chamber 5, with the controller featuring a microprocessor- based electronic circuit 6 designed to control the work cycle of the nebuliser according to a program saved in the internal, non-volatile memory and a power supply 7 inside, is adjacent to the lateral surface of the working reservoir 3. Through the orifices in the surfaces of the contacting walls, electrical wires have been routed 8, which connect the nebuliser 4 with the control unit 6 and the power supply 7.
Example 2
A device for spraying aerosol of a working medium (liquid) featuring a nebuliser and a control unit, intended for protective treatment, particularly in beekeeping, as described in example 1 , the difference being that the working reservoir 3 is enlarged by an additional space and the walls of its longest sides have been extended in relation to the position of the nebuliser 4, which is positioned at the semicircular edge of the working reservoir 3; on the extended top wall of the working reservoir 3, there is a threaded connector 10 used to attach the plastic, half-cylindrical supplying reservoir 1 to the working reservoir 3, the supplying reservoir 1 holds the working medium and features a round outlet facing towards the bottom of the working reservoir 3, the extension of which is the threaded connection 10, the distance between the surface of the threaded connector 10 and the bottom of the reservoir is equal to 1/5 of its height - this way the working medium flows gravitationally from the supplying reservoir 1 into the working reservoir 3, where its quantity is constantly maintained in this manner and the height of the column of liquid, adequate for the correct operation of the nebuliser 4, is maintained; the bottom of the working reservoir 3 has been designed in such a manner, as to make it inclined and slope down towards the place, where the nebuliser 4 is installed. There is an outlet in the top surface of the working reservoir 3 for releasing, outside of the reservoir, the spray (aerosol) produced from the working medium by the ultrasonic nebuliser submerged in that working medium. The outlet is positioned centrally above the nebuliser 4 and features a metal mesh screen 9 made of galvanised wire.

Claims

Claims
1. A device for spraying aerosol where the working medium (liquid) used in the treatment procedure is sprayed by a nebuliser (4), featuring a spraying cycle controller, characterised in that it consists of a supplying reservoir (1 ) with an outlet (2), positioned below 1/3 of the height of the reservoir and connected with the working reservoir (3), with the nebuliser installed inside, and in that a water-tight supply and control chamber (5) adjoins the working reservoir (3) - the chamber features a power supply (7) and a device work cycle controller (6) with both of these elements connected with the nebuliser (4) by means of electric wires (8).
2. The device, according to claim 1 , is characterised in that the supplying reser-voir (1 ) and the supply and control camber (5) are half-cylindrical with their planes facing the opposite directions, towards the external, lateral planes of the contour of the device, while the semicircular walls of these half-cylinders are facing the area above the nebuliser (4).
3. The device, according to claim 1 , is characterised in that the supplying reser-voir (1 ) features an inclined bottom, which slopes down towards the outlet.
4. The device, according to claim 1 , is characterised in that the work cycle con-troller for the device (6), installed in the supply and control chamber (5), fea-tures a micro-processor for controlling the operation of the nebuliser accord-ing to a program saved in the internal, non-volatile memory.
5. The device, according to claim 1 , is characterised in that the working reser-voir (3) has its top wall, separating its internal, i.e. working, area from the ex-ternal area surrounding the device and in the plane of the top wall of the working reservoir (4), there is an outlet, located centrally above the nebuliser (4), which enables free flow of the spray (aerosol), produced in the working reservoir (3) by the nebuliser (4), into the external surrounding of the device.
6. The device, according to claim 5, is characterised in that the outlet features a mesh screen (9).
7. The device, according to claim 6, is characterised in that the mesh screen (9) is made of plastic.
8. The device, according to claim 6, is characterised in that the mesh screen (9) is made of metal.
9. The device, according to claim 1 , is characterised in that the supplying reser-voir (1 ), the working reservoir (3) as well as the supply and control chamber (5) are placed on a rigid, quadrangular base.
10. The device, according to claim 1 , is characterised in that the working reservoir (3) is extended on one side by an additional lateral space, above which there is a connection with the supplying reservoir (1 ) attached to the top frame (10).
11. The device, according to claim 10, is characterised in that the bottom of the working reservoir (3) is inclined and slopes down towards the place, where the nebuliser (4) is installed.
EP20757976.4A 2019-05-30 2020-05-29 An aerosol spraying device Pending EP3975708A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL429021A PL241283B1 (en) 2019-05-30 2019-05-30 Aerosol spray device, using a nebulizer and with control
PCT/PL2020/050042 WO2020242328A1 (en) 2019-05-30 2020-05-29 An aerosol spraying device

Publications (1)

Publication Number Publication Date
EP3975708A1 true EP3975708A1 (en) 2022-04-06

Family

ID=72145444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20757976.4A Pending EP3975708A1 (en) 2019-05-30 2020-05-29 An aerosol spraying device

Country Status (3)

Country Link
EP (1) EP3975708A1 (en)
PL (1) PL241283B1 (en)
WO (1) WO2020242328A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU204291U1 (en) * 2021-01-13 2021-05-19 Федеральное государственное бюджетное образовательное учреждение высшего образования "Алтайский государственный аграрный университет" (ФГБОУ ВО Алтайский ГАУ) A device for treating bees against varroosis with a coniferous-vitamin supplement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10054048A1 (en) * 2000-10-31 2002-05-16 Ver Fuer Wesensgemaese Bienenh Treatment device, especially for safely eradicating pests in bee-hives, comprising sealed capsule with dissolvable wall containing active agent, e.g. oxalic acid, to be released by heating
ITRM20110450A1 (en) * 2011-08-26 2013-02-27 Vecchio Francesca Del EQUIPMENT METHOD INGREDIENTS AND FORMULATIONS FOR PRODUCING SOLUTIONS WITH A HIGH NOURISHING AND CURIOUS RECONSTITUTING NOURISHING EFFECT FOR A COMPLETE AND AUTOMATED SYSTEM TO PREVENT AND FIGHT THE BEALS SPLASH SYNDROME

Also Published As

Publication number Publication date
PL241283B1 (en) 2022-08-29
WO2020242328A1 (en) 2020-12-03
PL429021A1 (en) 2020-12-14

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