CN110371909A - Bottle placer - Google Patents
Bottle placer Download PDFInfo
- Publication number
- CN110371909A CN110371909A CN201910296028.7A CN201910296028A CN110371909A CN 110371909 A CN110371909 A CN 110371909A CN 201910296028 A CN201910296028 A CN 201910296028A CN 110371909 A CN110371909 A CN 110371909A
- Authority
- CN
- China
- Prior art keywords
- valve
- pallet
- liquid
- calibrated
- discharged
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
- B67C3/287—Flow-control devices, e.g. using valves related to flow control using predetermined or real-time calculated parameters
- B67C3/288—Flow-control devices, e.g. using valves related to flow control using predetermined or real-time calculated parameters using master-slave controls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
- B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
- B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
- B67C3/22—Details
- B67C3/28—Flow-control devices, e.g. using valves
- B67C3/287—Flow-control devices, e.g. using valves related to flow control using predetermined or real-time calculated parameters
Landscapes
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
- Formation And Processing Of Food Products (AREA)
- Centrifugal Separators (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
A kind of bottle placer, the storage case including being connected to multiple metering valves by supply line, metering valve are functionally connected to manage and control the device of the opening and closing of metering valve；Metering valve includes at least one reference valve and at least one valve to be calibrated, and reference valve is associated with flow measurement device, and flow measurement device is functionally connected to manage and control device, to determine the opening time for the reference valve for corresponding to predeterminable quantity of liquid distribution.Bottle placer has the calibration station including at least one pallet, it can be discharged into pallet by the liquid of each valve distribution to be calibrated, pallet with for correspond to the device weighed in time by the opening time for managing and controlling the reference valve that device determines to the liquid of discharge associated, it manages and controls device and is adapted to detect for including the difference between the amount of liquid in pallet and the liquid of predetermined amount, and it is suitable for generating the correction coefficient for the time that valve to be calibrated stays open according to difference, to allow the liquid of valve distribution predetermined amount to be calibrated.
Description
Technical field
The present invention relates to a kind of bottle placer more particularly to a kind of bottle placers for liquid using time control metering valve.
Background technique
Bottle placer for liquid is known and is widely used that generating using time control metering valve will be introduced into
The amount of liquid of each container.
In general, the time needed for filling each container finely tuned calibration operation and initially by way of by experiment find.
However, in use, some hydrodynamic factors or wear factor will lead to the flow that metering valve exports and become
Change, this causes to be recalibrated.
The flow of valve depends on the rate of outflow in fact, once known opening time is fixed, and the value of the rate of outflow by
The influence of flow resistance in circuit.
The value of flow resistance is influenced by many factors, as in viscosity, density, temperature, rotary bottle filler centrifugal force, lead
Pressure in the geometry of pipe, liquid level and charging-tank.
In order to solve this problem, same applicant had submitted EP1713692 patent application on 2 1st, 2005.
The purpose of foregoing invention is to ensure that the variation of heat/fluid dynamics parameter will not influence the initial school of filling apparatus
It is quasi-.
Particularly, the solution discussed discloses a kind of bottle placer, which has time control metering valve, and has
There is at least one main valve, which is equipped with the electronic flowmeter for being connected to computer unit, computer unit management at least one
The timing of the metering fill operations of a main bottle.
In this way, measurement is under stress from the liquid in all bottles that tank is assigned to each valve and is introduced into transport
Time needed for the actual amount of body is determined in advance.
Particularly, throttling diaphragm is applied to the upstream of each valve, which is calibrated with very high flow resistance, with true
The opposite variation for protecting all other parameter of the repeatability of operating condition that may influence quantitative stream will not influence this weigh
Renaturation.
Although above-mentioned solution is especially extensive, and be able to solve the calibration when heat/computational fluid dynamics Parameters variation and
Reproducibility problems, it is contemplated that need to provide main valve and multiple throttling diaphragms, cause from the perspective of structure some because
Element is complicated.
Summary of the invention
The object of the present invention is to provide a kind of bottle placers, can improve known technology in said one or many aspects.
In this purpose, the object of the present invention is to provide a kind of bottle placers, by the filling function with very useful
Mode manages calibration steps.
It is a further object to provide a kind of bottle placers highly reliable, easy to implement and at low cost.
The purpose and these and other objects may be implemented in bottle placer through the invention, these purposes and purpose exist
It hereinafter will be apparent, which optionally has other one or more features.
Detailed description of the invention
Pass through preferred but nonexcludability embodiment the description to bottle placer according to the present invention, further spy of the invention
Advantage of seeking peace will be apparent, which shows by way of non-limiting example in the accompanying drawings, in which:
Fig. 1 is the perspective view of bottle placer according to the present invention；
Fig. 2 is the enlarged perspective of the calibration station of bottle placer according to the present invention.
Specific embodiment
Referring to above-mentioned attached drawing, bottle placer according to the present invention is generally indicated by appended drawing reference 1, including passes through supply pipe
Road is connected to the storage case of multiple metering valves 3, and metering valve 3 is functionally connected to for managing and controlling above-mentioned metering valve 3
What is opened and closed manages and controls device 10.
According to the present invention, metering valve 3 includes at least one reference valve 3a, and reference valve 3a is related to flow measurement device 3b
Connection.
If bottle placer 1 has the metering valve 3 of special majority amount, it can have two or more reference valve 3a, so as to
It can compensate for any failure of one of these reference valves 3a.
Flow measurement device 3b is functionally connected to manage and control device 10, corresponds to predeterminable quantity of liquid to determine
The opening time of the reference valve 3a of distribution.
Specifically, metering valve 3 includes multiple valve 3c to be calibrated.
Bottle placer 1 is equipped with calibration station 11, which includes at least one pallet 20, by least one valve 3c to be calibrated points
The liquid matched can be discharged into the pallet 20.
Pallet 20 is especially associated with such device, which determines for weighing with by managing and controlling device 10
Reference valve 3a the opening time corresponding time in liquid in aforementioned pallet 20 is discharged by valve 3c to be calibrated.
In detail, device 10 is managed and controlled to be adapted to detect for corresponding to the reference valve determined by managing and controlling device 10
By between the valve 3c to be calibrated amount of liquid being discharged into pallet 20 and aforementioned predetermined liquid amount in the time of the opening time of 3a
Difference.
Specifically, it manages and controls device 10 and is functionally connected to weighing device, allow the device to corresponding to
It detects in time by the opening time for managing and controlling the reference valve 3a that device 10 determines and is discharged by valve 3c to be calibrated automatically
The difference between amount of liquid and aforementioned predetermined liquid amount in pallet 20.
It is stayed open specifically, managing and controlling device 10 and being suitable for generating each valve 3c to be calibrated according to this difference
Time correction coefficient, to allow to distribute the liquid of aforementioned predetermined amount by valve 3c during the use of bottle placer 1.
Preferably, bottle placer 1 includes multiple valve 3c to be calibrated.
Particularly, bottle placer 1 is provided with the device for each valve 3c to be calibrated to be located in calibrating position according to order,
In the calibrating position, the liquid flowed out from valve 3c to be calibrated is discharged at least one pallet.
Advantageously, pallet 20 includes liquid emission valve 21.
Easily, bottle placer 1 includes the support construction 2 for turntable 4, and turntable 4 can be rotated around vertical axis 100 to be transported
It is dynamic.
Turntable 4 is provided with multiple metering valves 3 in the peripheral edge margin of turntable.
Pallet 10 is more generally calibration station 11, is arranged along the motion profile of metering valve 3, more specifically, relatively
Lower level is arranged in the motion profile of metering valve 3.
Preferably, weighing device includes weighing sensor.
Pallet 20 can move between operating position and off position according to order.In operating position, pallet 20 exists
It is arranged in during calibration operation below the track of metering valve 3.In off position, pallet 20 relative to 4 lateral arrangement of turntable, with
Just bottle is not interfered in filling period during the normal use of bottle placer 1.
Possible variation according to the embodiment, bottle placer 1 includes storage case 2, and storage case 2 is connected to more by supply line 2a
A metering valve 3, metering valve 3 are functionally connected to the device 10 of the opening and closing for managing and controlling metering valve 3.
Bottle placer 1 includes multiple valve 3c to be calibrated.
Bottle placer also has calibration station 11, which includes at least one pallet 20, by least one valve 3c to be calibrated
The liquid of distribution can be discharged into the pallet 20.
Pallet 20 is discharged into for weighing within the time by managing and controlling the determination of device 10 by valve 3c to be calibrated
The device of liquid in aforementioned pallet 20 is associated.
In this way, even if without reference to valve 3a, the calibration of valve to be calibrated can also be executed.
The bottle placer 1 of the above-mentioned type is additionally advantageously provided with for each valve 3c to be calibrated to be located in calibration according to order
The device of position, in the calibrating position, the liquid flowed out from valve 3c to be calibrated is discharged at least one pallet 20.
According on the other hand, the present invention relates to a kind of method for calibrating the metering valve 3 of bottle placer 1, this method packets
It includes:
The step of reference valve 3a is arranged, reference valve 3a is associated with flow measurement device 3b, flow measurement device 3b
It is functionally connected to manage and control device 10, when to determine the opening for corresponding to the reference valve 3a that predeterminable quantity of liquid distributes
Between；
The step of valve 3c to be calibrated is located at calibration station 11, the calibration station include at least one pallet 20, the pallet
20 with the device for the liquid being discharged into pallet 20 is associated for weighing, can be discharged by the liquid of valve 3c to be calibrated distribution
In the pallet 20；
The step of opening valve 3c to be calibrated for a period of time, which corresponds to during setting procedure by managing and controlling
The opening time for the reference valve 3a that device 10 determines；
The amount of liquid and predetermined liquid amount being discharged into during opening steps in pallet by managing and controlling the detection of device 10
Between difference the step of；
It is to be calibrated that at least one is generated by managing and controlling device 10 according to the difference detected during detecting step
The step of correction coefficient for the time that valve 3c is stayed open.
Advantageously, after generating step, need to start the step of valve 3c to be calibrated for a period of time according to the method for the present invention
Suddenly, the time, needing will be in starting step corresponding to the opening time of reference valve 3a multiplied by time adjustment coefficient, and optionally
The period liquid of distribution is discharged into the step in pallet 10.
Particularly, after starting step, exist for controlling the amount of liquid being discharged into pallet during starting step
Weighing stage, and verifying be discharged into pallet during the weighing stage for controlling the amount of liquid being discharged into pallet
The step of correspondence between amount of liquid and predetermined liquid amount.
Preferably, this method includes continuously opening in a period of time corresponding to the opening time of reference valve 3a to school
Multiple single steps of quasi- valve, and by managing and controlling the amount of liquid and predetermined liquid amount that device detection is discharged into pallet
Between difference multiple corresponding steps.
If the single amount of liquid detected in corresponding detecting step is shown relative to each other can preset limit
Interior percent deviation then manages and controls device and is adapted to determine that time adjustment coefficient.
In above-mentioned generation step, there is also calculate detect single amount of liquid average value the step of.
Such average value is especially used by managing and controlling the step of device 10 generates opening time correction coefficient.
If the percentage that the amount of liquid being discharged into pallet 20 during controlling weighing stage deviates predetermined liquid amount is low
In acceptable deviation percentage, such as equal to 0.2% or more preferably equal to 0.1%, then imagine verification time correction coefficient
Step.
Easily, this method is needed when overstepping the extreme limit level the step of empty pallets 20.
According on the other hand, the present invention relates to a kind of method for calibrating the metering valve 3 of bottle placer 1, this method packets
It includes:
The step of valve 3c to be calibrated is located at calibration station 11, the calibration station include at least one pallet 20, the pallet
20 with the device for the liquid being discharged into pallet 20 is associated for weighing, can be arranged by the liquid that above-mentioned valve 3c to be calibrated is distributed
It is put into the pallet 20；
The step of opening valve 3c to be calibrated；
The step of detecting the opening time of valve to be calibrated, the opening time correspond to the predetermined amount being discharged into pallet
Liquid:
By managing and controlling the step of device 10 stores the corresponding opening time of valve 3c to be calibrated.
In practice it has been found that the present invention is by providing a kind of particularly practical and reliable bottle placer and calibration measurement valve
Method fully achieves wanted target and purpose.
Thus, it is contemplated that the present invention can be there are many change and modification, all these changes and modification are all in appended power
In the range of sharp claim.In addition, all details can be by other technical equivalent element substitutions.
In practice, used material can as long as they are mutually compatible with special-purpose and possible size and shape
To be according to any material required with the prior art.
Claims (12)
1. a kind of bottle placer (1), the storage case including being connected to multiple metering valves (3) by supply line (2a), the metering
What valve was functionally connected to the opening and closing for managing and controlling the metering valve (3) manages and controls device (10),
It is characterized in that, the metering valve (3) includes at least one reference valve (3a), the reference valve and flow measurement device (3b) phase
Association, the flow measurement device be functionally connected to it is described manage and control device (10), so as to determining with predetermined amount liquid
The opening time of the corresponding reference valve (3a) of the distribution of body, the metering valve (3) include at least one valve (3c) to be calibrated,
The bottle placer is provided with calibration station (11), and the calibration station includes at least one pallet (20), by it is described at least one wait for school
The liquid of quasi- valve (3c) distribution can be discharged into the pallet, and the pallet (20) is associated with such device, the device
Corresponding to for weighing by the time of the opening time for managing and controlling the reference valve (3a) that device (10) determine
The interior liquid being discharged by least one described valve (3c) to be calibrated at least one described pallet (20), it is described to manage and control
Device (10) be adapted to detect for by it is described manage and control device (10) determine the reference valve (3a) opening time pair
The valve (3c) to be calibrated is discharged into the amount of liquid in the pallet (20) and the difference between predetermined liquid amount in the time answered,
And it is suitable for generating the correction coefficient for the time that at least one described valve (3c) to be calibrated stays open according to the difference, with
Just allow to distribute the liquid of predetermined amount by the valve (3c) to be calibrated.
2. bottle placer (1) according to claim 1, which is characterized in that the bottle placer includes multiple valves to be calibrated (3c),
The bottle placer is provided with the device for each valve (3c) to be calibrated to be located in calibrating position according to order, in the calibration
In position, the liquid flowed out from the valve (3c) to be calibrated is discharged at least one described pallet (20).
3. bottle placer (1) according to claim 1, which is characterized in that the pallet (20) includes liquid emission valve (21).
4. bottle placer (1) according to claim 1, which is characterized in that the bottle placer includes the support for turntable (4)
Structure (2), the turntable is mobile around vertical axis (100) and has the multiple metering at the turntable peripheral edge margin
Valve (3), the pallet (20) are arranged along the motion track of the metering valve (3) and are in relative to the metering valve (3)
Lower level.
5. a kind of bottle placer (1), the storage case including being connected to multiple metering valves (3) by supply line (2a), the metering
What valve was functionally connected to the opening and closing for managing and controlling the metering valve (3) manages and controls device (10),
It is characterized in that, the bottle placer includes multiple valves to be calibrated (3c), the bottle placer is provided with calibration station (11), the calibration
It stands including at least one pallet (20), the pallet is discharged by the liquid that valve to be calibrated (3c) described at least one distributes
In, the pallet (20) is associated with such device, which is managing and controlling device (10) really by described for weighing
The liquid at least one described pallet (20) is discharged by valve to be calibrated (3c) described at least one in the fixed time.
6. bottle placer (1) according to claim 5, which is characterized in that the bottle placer include for according to order will be every
A valve to be calibrated (3c) is located in the device of calibrating position, in the calibrating position, is discharged from the valve (3c) to be calibrated
Liquid is discharged at least one described pallet (20).
7. the method for metering valve (3) of the one kind for calibrating bottle placer (1), comprising:
The step of reference valve (3a) associated with flow measurement device (3b) is arranged, the flow measurement device is functionally
It is connected to and manages and controls device (10), to determine beating for reference valve (3a) corresponding with the distribution of predeterminable quantity of liquid
ETAD expected time of arrival and departure；
The step of valve to be calibrated (3c) is located at calibration station (11), the calibration station include at least one pallet (20), institute
It is associated with for weighing the device of liquid being discharged at least one described pallet (20) to state pallet, as described at least one
The liquid of valve (3c) distribution to be calibrated is discharged into the pallet；
The step of opening described valve (3c) a period of time to be calibrated, described a period of time correspond to during setting steps by institute
State the opening time for managing and controlling the reference valve (3a) that device (10) determine；
It is managed and controlled between device (10) detection amount of liquid being discharged into the pallet (20) and predetermined liquid amount by described
Difference the step of；
It is managed and controlled device (10) by described at least one is generated according to the difference detected during detecting step
The step of correction coefficient for the time that the valve to be calibrated (3c) stays open.
8. the method according to the description of claim 7 is characterized in that the described method includes: after generating step, with it is described
The step of opening time of reference valve (3a) is multiplied by valve to be calibrated (3c) is started in the time adjustment coefficient corresponding time；
Weighing stage is provided, for controlling the amount of liquid dischargeing in the pallet during starting step；And verifying is provided and is existed
The step of correspondence between the amount of liquid being discharged into during weighing stage in the pallet and predetermined liquid amount.
9. the method according to the description of claim 7 is characterized in that the method continuously include: with the reference valve
Multiple single steps of the valve (3c) to be calibrated are opened in (3a) opening time corresponding time；And by it is described management and
Control device (10) detection is discharged into the multiple corresponding of the amount of liquid in the pallet (20) and the difference between predetermined liquid amount
Step, described manage and control device (10) are suitable for the average value by calculating the single amount of liquid detected to determine time school
Positive coefficient；It is described to manage and control the step of device (10) generate opening time correction coefficient using the average value.
10. the method according to the description of claim 7 is characterized in that the described method includes: if for controlling weighing stage
The percentage that the amount of liquid that period is discharged into the pallet (20) deviates the predetermined liquid amount deviates hundred lower than acceptable
Divide ratio, then the step of verification time correction coefficient.
11. the method according to the description of claim 7 is characterized in that the method includes emptying institute when overstepping the extreme limit level
The step of stating pallet (20).
12. the method for metering valve (3) of the one kind for calibrating bottle placer (1), comprising:
The step of valve to be calibrated (3c) is located at calibration station (11), the calibration station include at least one pallet (20), institute
It is associated with for weighing the device of liquid being discharged at least one described pallet (20) to state pallet, as described at least one
The liquid of valve (3c) distribution to be calibrated is discharged into the pallet；
The step of opening valve (3c) to be calibrated；
The step of detecting the opening time of the valve to be calibrated, the opening time, which corresponds to, is discharged at least one described support
The liquid of predetermined amount in disk；
Accordingly beating at least one valve (3c) to be calibrated is stored by the device (10) that manages and controls for managing and controlling
The step of ETAD expected time of arrival and departure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102018000004468A IT201800004468A1 (en) | 2018-04-13 | 2018-04-13 | FILLING MACHINE. |
| IT102018000004468 | 2018-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110371909A true CN110371909A (en) | 2019-10-25 |
Family
ID=62816968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910296028.7A Pending CN110371909A (en) | 2018-04-13 | 2019-04-12 | Bottle placer |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3553022A1 (en) |
| CN (1) | CN110371909A (en) |
| IT (1) | IT201800004468A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020130738A1 (en) * | 2020-11-20 | 2022-05-25 | Krones Aktiengesellschaft | Method for calibrating a filling device in a bottling plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0515960A1 (en) * | 1991-05-27 | 1992-12-02 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Method and apparatus for filling bottles, cans or similar containers |
| DE102008030292A1 (en) * | 2008-06-30 | 2009-12-31 | Khs Ag | filling system |
| CN202322313U (en) * | 2011-11-24 | 2012-07-11 | 广东山之风环保科技有限公司 | Barreled liquid program-controlled quantitative filling machine |
| JP5038265B2 (en) * | 2008-08-29 | 2012-10-03 | 三菱重工食品包装機械株式会社 | Filling valve |
| CN102791582A (en) * | 2010-01-15 | 2012-11-21 | Sig技术股份公司 | Device for controlling a fluid flow |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288168A (en) * | 1994-04-05 | 1995-10-11 | Bwi Dawson | Master - slave filling valve system for bottling machine |
| US6761191B2 (en) | 2000-11-03 | 2004-07-13 | Robert A. Rosen | Liquid filling system with improved fluid displacement, nozzle and container handling, cleaning, and calibration/set-up capabilities |
| ITBO20040059A1 (en) | 2004-02-10 | 2004-05-10 | Stk Stocchi Progetti S R L Uni | FILLER WITH TIMED DOSING TAPS |
| IT1395607B1 (en) * | 2009-09-14 | 2012-10-16 | Ft System Srl | FILLING SYSTEM FOR BOTTLES OR CONTAINERS WITH CONTINUOUS CALIBRATION AND A CONTINUOUS CALIBRATION METHOD OF SUCH A SYSTEM |
| DE102012203008A1 (en) | 2012-02-28 | 2013-08-29 | Krones Ag | Container handling machine and method for calibration |
-
2018
- 2018-04-13 IT IT102018000004468A patent/IT201800004468A1/en unknown
-
2019
- 2019-04-03 EP EP19167124.7A patent/EP3553022A1/en active Pending
- 2019-04-12 CN CN201910296028.7A patent/CN110371909A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0515960A1 (en) * | 1991-05-27 | 1992-12-02 | KHS Maschinen- und Anlagenbau Aktiengesellschaft | Method and apparatus for filling bottles, cans or similar containers |
| DE102008030292A1 (en) * | 2008-06-30 | 2009-12-31 | Khs Ag | filling system |
| JP5038265B2 (en) * | 2008-08-29 | 2012-10-03 | 三菱重工食品包装機械株式会社 | Filling valve |
| CN102791582A (en) * | 2010-01-15 | 2012-11-21 | Sig技术股份公司 | Device for controlling a fluid flow |
| CN202322313U (en) * | 2011-11-24 | 2012-07-11 | 广东山之风环保科技有限公司 | Barreled liquid program-controlled quantitative filling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| IT201800004468A1 (en) | 2019-10-13 |
| EP3553022A1 (en) | 2019-10-16 |
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