EP3114907B1 - Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée - Google Patents

Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée Download PDF

Info

Publication number
EP3114907B1
EP3114907B1 EP15715814.8A EP15715814A EP3114907B1 EP 3114907 B1 EP3114907 B1 EP 3114907B1 EP 15715814 A EP15715814 A EP 15715814A EP 3114907 B1 EP3114907 B1 EP 3114907B1
Authority
EP
European Patent Office
Prior art keywords
rings
sealant
percent
distance
torch
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.)
Active
Application number
EP15715814.8A
Other languages
German (de)
English (en)
Other versions
EP3114907A1 (fr
Inventor
Jackie Laverne Winn
Praveen Krishna Namburu
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.)
Lincoln Global Inc
Original Assignee
Lincoln Global Inc
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
Priority claimed from US14/631,814 external-priority patent/US9313871B2/en
Application filed by Lincoln Global Inc filed Critical Lincoln Global Inc
Priority to PL15715814T priority Critical patent/PL3114907T3/pl
Publication of EP3114907A1 publication Critical patent/EP3114907A1/fr
Application granted granted Critical
Publication of EP3114907B1 publication Critical patent/EP3114907B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/28—Cooling arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3421—Transferred arc or pilot arc mode
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/3436—Hollow cathodes with internal coolant flow

Definitions

  • the invention is related to a plasma arc torch according to claim 1.
  • Devices and methods consistent with the invention relate to cutting, and more specifically to devices and systems for aligning and securing components of a liquid cooled plasma arc torch and an improved torch design.
  • An exemplary embodiment of the present invention is an arc torch assembly or sub assembly having improved replacement and centering characteristics, where certain components of the torch head have particular characteristics which improve the operation, use and replaceability of the various components. Further embodiments of the present invention also have enhanced leakage prevention structure and components to prevent coolant from leaking from the torch.
  • a plasma arc torch comprises a cathode adaptor body having at least two first sealant channels formed on an outer surface of a first end of the cathode adaptor body to respectively accept at least two first sealant rings.
  • the at least two first sealant channels are spaced apart from each other by a first distance that is in a range of 2 percent to 90 percent of an overall length of the cathode adaptor body.
  • the torch also includes a cathode body coupled to a second end of the cathode adaptor body with the cathode body having at least two second sealant channels formed on an outer surface of the cathode body to respectively accept at least two second sealant rings.
  • the at least two second sealant channels are spaced apart from each other by a second distance that is in a range of 2 percent to 50 percent of an overall length of the cathode body.
  • the torch further includes a pilot arc connector having at least two third sealant channels formed on an outer surface of the pilot arc connector to respectively accept at least two third sealant rings.
  • the at least two third sealant channels are spaced apart from each other by a third distance that is in a range of 2 percent to 90 percent of an overall length of the pilot arc connector.
  • the torch additionally includes a rear isolator that isolates the cathode body from an anode body.
  • the rear isolator includes at least two fourth sealant channels formed on an outer surface of the rear isolator to respectively accept at least two fourth sealant rings.
  • the at least two fourth sealant rings engage with an inner surface of the anode body and the at least two fourth sealant channels are spaced apart from each other by a fourth distance that is in a range of 2 percent to 50 percent of an overall length of the rear isolator.
  • the rear isolator also includes at least two fifth sealant channels formed on the outer surface of the rear isolator to respectively accept at least two fifth sealant rings.
  • the at least two fifth sealant rings engage with an inner surface of a ring isolator and the at least two fifth sealant channels are spaced apart from each other by a fifth distance that is in a range of 2 percent to 50 percent of the overall length of the rear isolator.
  • FIG 1 depicts a diagrammatical representation of an exemplary embodiment of a cutting torch cooling tube electrode assembly 100 of the present invention.
  • the assembly 100 is inserted into a torch body which is not shown here for clarity (see Figure 4 ).
  • the assembly 100 comprises a coolant tube 101 which is inserted into a channel 109 of a coolant tube holder 105 and a channel 104 of an electrode 107.
  • the distal end of the coolant tube holder 105 has an opening into which the electrode 107 is inserted.
  • the proximate end of the holder 105 also has an opening into which the coolant tube 101 is inserted, as shown.
  • the coolant tube 101 has a proximate end opening 103 which feeds into a channel 102 in the coolant tube.
  • the cooling liquid is directed to the opening 103 and down through the channel 102 towards the distal end of the coolant tube 101.
  • the tube 101 has a length such that its distal end creates a gap 111 between the end of the tube 101 and an inner wall of the channel 104 of the electrode 107. This gap 111 is important to the operation of the assembly 100 as the coolant flows down the channel 102 it passes through this gap 111 and enters the channel 104 of the electrode 107 and then the channel of the holder 105 to provide the desired cooling.
  • Embodiments of the present provide for very consistent insertion of the tube 101 and the gap 111 dimension, as well as centering of the tube 101 in the channels 109 and 104, which will be described in more detail below.
  • the holder 105 contains a plurality of exit ports 106 which allows the coolant to exit the channel 109 and transfer heat away from assembly 100.
  • the ports 106 are positioned radially around a centerline of the holder 105 so that the coolant exits radially away from the holder 105 centerline as opposed to out of its proximate end.
  • the holder 105 contains between 3 and 8 ports. The radial displacement of the ports is symmetrical to ensure even flow.
  • the diameter of the ports is to be selected to ensure that the desired coolant flow is achieved during operation.
  • all of the ports 106 have the same diameter.
  • the ports 106 can have different diameters. For example, half of the ports 106 can have a first diameter, while the other half of the ports 106 can have a second diameter which is less than the first diameter.
  • FIG. 2 shows a close up view of the proximate end of the coolant tube holder 105 and the coolant tube 101, which shows how the coolant tube 101 is stabilized and centered in the coolant tube holder 105.
  • the coolant tube 101 has a stabilization portion 123 which extends radially around the tube 101.
  • the stabilization portion 123 has an outer land surface 123A which engages with the inner surface 108 of the holder 105. When the tube 101 and the holder 105 are engaged with each other there is a friction fit engagement between the portion 123 and the surface 108.
  • the friction fit engagement between the portion 123 and the surface 108 holds the tube 101 centered in the channel 109 and ensures that each time the cooling tube, and other components are replaced the components are repositioned in a centered state with little difficulty.
  • the portion 123 is configured such that the friction fit engagement with the holder 105 is continuous radially around the surface 108. Stated differently, the engagement between the portion 123 and surface 108 is such that no fluid (cooling fluid, etc.) can pass between the portion 123 and the surface 108. Thus, it is easier to replace the components, including the assembly 100 in a torch and providing more consistent accurate replacement.
  • FIG. 2A and 2B Another exemplary embodiment of the present invention, is shown in Figures 2A and 2B , where the coolant tube 101 has extension portions 140 which extend radially outward from the portion 123 as shown. These extension portions 140 extend out from portion 123 into grooves 108A in the coolant tube holder 105 and aide to ensure proper insertion into the coolant tube holder 105. In exemplary embodiments the extension portions 140 have a friction fit with the grooves 108A. This engagement aids in centering the coolant tube 101 as well as ensuring that the coolant tube 101 is oriented radially in the proper position. In exemplary embodiments, the extension portions 140 have a length which is less than the length L of the portion 123.
  • extension portions have a surface 141 which engages with an adjacent surface 141A on the coolant tube holder 105. The engagement of these two surfaces acts to again ensure proper placement of the coolant tube 101 in the coolant tube holder 105 and ensure that it is not inserted too far into the holder 105.
  • four portions 140 are shown in Figures 2A and 2B , other embodiments can use a different number of portions 140.
  • the coolant tube 101 will always be inserted in a concentric state in its holder 105. Thus preventing improper insertion and decreased component life.
  • the tube 101 has securing portion 119, which is closer to the proximal end of the tube than the stabilization portion 123, which is used in conjunction with a third portion 119A to hold an o-ring 130 in place.
  • the o-ring 130 is used to provide a seal for the assembly 100 and tube 101 when installed in a torch assembly.
  • Each of the securing portion 119 and the third portion 119A extended radially around the tube 101.
  • the securing portion 119 has a distal surface 122 which, when installed in the holder 105, engages with a the proximal end surface 120 of the holder 105.
  • the insertion of the tube 101 into the holder 105 will always be made at the appropriate position to ensure that the gap 111 is the proper distance.
  • the depth of insertion is difficult to repeat or perform consistently.
  • the surfaces 122 and 120 ensure that the tube 101 is inserted to the proper distance easily and nearly eliminates error during replacement and assembly.
  • the combination of having the surface 122 engage with the surface 120 at the proximal end of holder 105 and the portion 123 engaging with the surface 108 provides a coolant tube assembly 100 with improved centricity and improved reliability during assembly and replacement of components over known torches.
  • the combination of these engagements in close proximity to each other ensures that the tube 101 is inserted into the holder 105 at the proper depth for the gap 111 and centered within the channel 109. Further, this configuration allows the tube 101 to be configured without positional protrusions closer to the distal end of the tube 101.
  • the coolant tube has protrusions positioned closer to the distal end of the tube to aid in centering the tube. However, these protrusions extend into the coolant flow path and thus impede coolant flow and coolant performance.
  • Some exemplary embodiments of the present invention can use positional protrusions, but because of the advantages of the above discussed configuration the protrusions can be smaller, and in many applications are not necessary.
  • exemplary embodiments of the present invention include an undercut portion 133 positioned between portions 119 and 123.
  • This undercut portion serves to ensure proper seating between surfaces 122 and 120 and thus the coolant tube 101 in the coolant tube holder 105.
  • This undercut portion 133 is to have a length along the coolant tube which is less than the length L of the portion 123.
  • the stabilization portion 123 aids in stabilizing the tube 101 when inserted into the holder 105 in a press fit state.
  • the length of the portion 123 needs to be sufficient to provide the desired stabilization and ensure centricity when inserted.
  • the outermost plateau surface 123A of the portion 123 has a length L that is in the range of 10 to 20% of the length of the tube 101 which is inserted into the holder 105 (the length of the tube from its distal end at the gap 111). Having a plateau length in this range ensures sufficient alignment and stability while also allowing for accurate and repeatable positioning.
  • the length of the plateau portion 123A is in the range of 4 to 25% of the length of the tube 101 within the holder 105.
  • the plateau length L described above is the length of the flat surface on the portion 123 that makes contact with the inner surface of the holder 105 when the tube is inserted into the holder 105.
  • the portion 123 has an angled surface 123B which extends from the body of the tube 101 to the plateau surface 123A.
  • the angled surface 123B aids in guiding the flow of the coolant fluid out of the ports 106. This aids in preventing the creation of stagnation zones in the fluid flow and increases the performance of the fluid flow.
  • the angle A between the body of the tube 101 and the surface 123B is in the range of 16 to 60 degrees. In other exemplary embodiments the angle is in the range of 40 to 60 degrees.
  • the center of the angle A is positioned such that it aligns with the centerline of the ports 106.
  • the center A corresponds to the center of a circle defined by the radius of the angle A, whereas if the angle A is a sharp angle then the center of the angle A is the inflection point.
  • the center of the angle A is aligned with the centerline of the ports 106.
  • the centerline of the angle A is positioned such that it is close to the centerline of the ports 106, but does not have to be aligned with the centerline. In such embodiments, the center of the angle A is positioned within 10% of the diameter of the ports 106 with respect to the centerline of the ports 106.
  • the center of the angle A is aligned within +/- 0.635 mm (0.025") of the centerline of the ports. If the ports have varying diameters (as referenced previously) the average of the port diameters is to be used to determine the range of alignment as described above.
  • the electrode 107 is shorter and threaded into the coolant tube assembly. Such a configuration allows the electrode 107 to be considerably smaller and much easier to be replaced. Because of this configuration, in exemplary embodiments of the present invention, the electrode 107 can have a length (form its most distal to most proximate ends) that is within the range of 4 to 20% of the coolant tube assembly 100, 5 to 20% of the length of the coolant tube 101, and within the range of 5 to 20% the length of the coolant tube holder 105. With these ratios, embodiments of the present invention provide excellent cutting performance and at the same time allow for ease of replacement and alignment of each of the respective components, as described herein.
  • the fit and construction of the assembly of the holder 105 and tube 101 ensures proper replacement. Further, it is not necessary to remove the coolant tube holder and thus risk misaligning the coolant tube holder or the remainder of the assembly 100 when replacement of the electrode 105 is needed. Additionally, the coolant tube holder 105 and the coolant tube 101 can be kept as an assembly to be replaced as needed which ensures that the assembly remains aligned if removed or replaced.
  • the electrode 107 can be made of known materials used for electrodes, including but not limited to copper, silver, etc. Further, because of the reduced size of the electrode 107 there is a significant reduction in cost by just replacing the electrode 107 of the present invention.
  • Figure 3 depicts another aspect of the present invention, which aids in ensuring proper alignment and centricity during assembly and replacement of components of the assembly 100.
  • Figure 3 depicts a quick-coupling, multi-start thread configuration which is used on various components of the torch assembly 100, and can be used on other components of a torch.
  • the thread design employs multiple starts and a modified thread pitch to enhance alignment and installation, during assembly and replacement.
  • Figure 3 depicts an exemplary embodiment of an electrode 300 having a multi-thread design of the present invention.
  • the electrode 300 has a thread portion 301 having a plurality of separate and distinct thread paths 303A, 303B and 303C.
  • the embodiment shown has three distinct thread paths 303, but other embodiments of the present invention can use more than three thread paths.
  • other exemplary embodiments can use 4 distinct thread paths, and others can use as many as 5 different thread paths.
  • embodiments of the present invention can provide easy and accurate replacement of components, greatly minimizing misalignment and/or cross-threading of components, while at the same time providing the required and desired applied connection force.
  • Embodiments of the present invention also deliver the desired mating force by using significantly less complete rotations of the component, thus making the replacement of a component quicker and more consistent.
  • embodiments of the present invention can provide the complete installation of a component with only 1 to 2 complete rotations of a component.
  • complete installation of a component can be achieved by 1.25 to 1.5 complete rotations of the component.
  • electrodes of the present invention can be installed with only 1.25 to 1.5 complete rotations.
  • embodiments of the present invention can provide highly accurate installation by ensuring proper alignment, minimizing the chances of cross threading or misalignment and ensuring that the component (for example the electrode 107) is fully installed. By reducing the number of rotations required to install a component, embodiments of the present invention make it much easier on an installer to ensure that complete installation has been achieved. Because of the advantages of the present invention, the multi-thread configuration can be used on all components of a torch head assembly that utilize threads, and in particular those threads on components that are frequently replaced. For example, each of the threads 115, 117 and 127 shown in Figure 1 can have the multi-thread configuration as described above.
  • embodiments can also use this thread configuration on other torch assembly components, such as quick disconnect rings, inner and outer retaining caps, electrodes, coolant tubes, holders, etc.
  • the torch attachment ring 401 connects the torch head to the torch base
  • the outer retaining cap 403 aids in retaining the torch shield cap
  • the inner retaining cap 405 aids in retaining the torch nozzle.
  • Figure 4 depicts an exemplary embodiment of a torch assembly 400 that contains the assembly 100 from Figure 1 . Because the other components of the torch assembly 400 are generally known, they are not discussed in detail herein. Of course, various embodiments of the present invention are not limited to the configuration of the torch assembly 400 as shown in Figure 4 , or the assembly 100 as shown in Figures 1 and 2 , and these embodiments are intended to be exemplary.
  • Figure 5 depicts a close-up of a portion of the torch assembly 400 shown in Figure 4 .
  • the torch 400 has a cathode adaptor body 501, a cathode body 505, a pilot arc connector 509 and a rear isolator 513, among other components. Because these components, as well as the other torch components, are generally known to those of skill in the art they will not be discussed in detail herein. In general, except to the extent discussed below, the structure of the torch components can be consistent with known torch configurations as aspects of the invention can be used in conjunction with multiple torch configurations.
  • the cooling tube in Figure 5 is a different configuration than the cooling tube in Figure 4 .
  • embodiments of the present invention and structural characteristics as shown in Figure 5 can be used with the embodiment shown in Figure 4 , and vice versa.
  • embodiments of the present invention utilize various seals and sealing mechanisms to greatly improve the sealing of the torch 400 and its components. This is explained in more detail with respect to Figures 5 and 6 .
  • the torch 400 includes a cathode adaptor body 501 to which the cathode body 505 is coupled and secured. Because, in some torch constructions, the cathode adaptor body 501 can be exposed to coolant during operation it is desirable to provide adequate sealing of this component. Embodiments of the present invention do this by providing at least two sealant rings 502, 503 (e.g., O-rings) at a connection end 501' of the cathode adaptor body 501. Each of the sealant rings sit in a separate channel formed in the surface of the cathode adaptor body 501 which allow the rings to seat properly.
  • sealant rings 502, 503 e.g., O-rings
  • connection end of the body 501 is the opposite end from the end of the cathode adaptor body 501 to which the cathode body 505 is coupled.
  • the at least two O-rings are spaced apart from each other by a distance D2 - from centerline to centerline.
  • the distance D2 is in the range of 2 to 90% of the overall length L2 of the cathode adaptor body 501. In other exemplary embodiments, the distance D2 is in the range of 2 to 25% of the overall length L2.
  • Such dimensions provide for optimal positioning of the sealing rings to ensure that a proper seal is maintained during operation and component failure.
  • embodiments of the present invention can provide an enhanced sealing of the cathode adaptor body 501 in a torch assembly 400.
  • embodiments of the present invention provide an enhanced sealing and can sufficiently resist the pressures experienced in the coolant fluid flow.
  • the sealant rings 502 and 503 are the same. However, in other exemplary embodiments, the rings 502 and 503 can have different dimensions/characteristics such that they provide different pressure resistance.
  • the cathode body 505 has at least two sealant rings 506, 507 (e.g., O-rings) positioned near the center of its overall length L3. Again these sealant rings 506, 507 provide enhanced sealing in the event of a coolant leak or spill and protect components of the torch 400.
  • Each of the sealant rings 506, 507 sit in a separate channel formed in the surface of the cathode body 505 which allow the rings to seat properly.
  • the rings 506, 507 are positioned from each other by a distance D3, centerline to centerline. The distance D3 is the in the range of 2 to 50% of the overall length L3 of the cathode body.
  • the distance D3 is in the range of 2 to 12% of the overall length of the cathode body.
  • Such dimensions provide for optimal positioning of the sealing rings to ensure that proper seal is maintained during operation and component failure.
  • the rings 506, 507 are positioned in a central region 505' of the cathode body 505. Further, in exemplary embodiments of the present invention, the rings 506 and 507 are positioned such that the center of the distance D3 is positioned near the center of the overall length L3 of the cathode body.
  • the rings 506 and 507 are positioned such that the center of the distance D3 is positioned such that the center of the distance D3 is no more than 10% of the overall length L3 of the cathode body 505, away from the center of the length of the cathode body 505.
  • the center of the distance D3 will be positioned no more than 12.7 mm (0.5") away from the center of the length L3 of the cathode body 505.
  • the sealant rings 506 and 507 are the same.
  • the rings 506 and 507 can have different dimensions/characteristics such that they provide different pressure resistance.
  • embodiments of the present invention use at least two sealant rings 510 and 511 on the pilot arc connector 509.
  • the pilot arc connector 509 is used to aid in the creation of a pilot arc during operation of the torch 400. Because its use and operation are generally known, details of a pilot arc connector will not be discussed in detail herein.
  • Each of the sealant rings 510, 511 sit in a separate channel formed in the surface of the pilot arc connector 509 which allow the rings to seat properly.
  • the at least two rings 510 and 511 are positioned on a middle region 509' of the pilot arc connector 509 where the middle region 509' has the largest diameter of the pilot arc connector 509.
  • the rings 510 and 511 are positioned a distance D1 from each other, where the distance D1 is in the range of 2 to 90 % of the overall length L1 of the pilot arc connector 509. In other exemplary embodiments, the distance D1 is in the range of 2 to 50% of the overall length L1. Such dimensions provide for optimal positioning of the sealing rings to ensure that proper seal is maintained during operation and component failure. Further, in exemplary embodiments of the present invention, the rings 510 and 511 are positioned such that the center of the distance D1 is positioned such that the center of the distance D1 is no more than 20% of the overall length L1 of the pilot arc connector 509, away from the center C of the length of the pilot arc connector 509.
  • the center of the distance D1 will be positioned no more than 20.32 mm (0.8") away from the center C of the length L1 of the pilot arc connector 509.
  • the sealant rings 510 and 511 are the same.
  • the rings 510 and 511 can have different dimensions/characteristics such that they provide different pressure resistance.
  • the torch 400 utilizes a rear isolator 513 which isolates the cathode body 505 from the anode body 519.
  • the anode body 519 acts as a housing for the nozzle of the torch and the rear isolator 513 aids in routing fluids (such as the coolant) and houses the cathode body of the torch.
  • the rear isolator 513 has at least four separate sealant rings 514, 515, 516 and 517 positioned on an outer surface of the rear isolator 513.
  • Each of the sealant rings 514, 515, 516, and 517 sit in a separate channel formed in the surface of the rear isolator 513 which allow the rings to seat properly. As shown, the rings are separated into two groups of rings 514/515 and 516/517, where the first group 514/515 engages with an inner surface of the anode body 519, and the second group 516/517 engages with an inner surface of the thread ring isolator 521.
  • the thread ring isolator 521 aids in isolating the shield cap and outer cap of the torch from the anode body and nozzle.
  • each grouping of the rings are separated by a distance D4 (centerline to centerline) which is in the range of 2 to 50 % of the overall length L4 of the rear isolator 513.
  • the distance D4 is in the range of 2 to 16% of the overall length L4.
  • each grouping of rings 514/515 and 516/517 are separated (the distance between the respective rings of each pairing) by the same distance D4.
  • the distance of separation need not be the same.
  • the sealant rings 514, 515, 516 and 517 are the same.
  • the rings 514,515, 516 and 517 can have different dimensions/characteristics such that they provide different pressure resistance.
  • REFERENCE NUMBERS 100 assembly 141 surface 101 coolant tube 141A surface 102 channel 300 electrode 103 end opening 303 thread path 104 channel 303A path 105 coolant tube holder 303B path 106 exit port 303C path 107 electrode 400 (torch) assembly 108 inner surface 401 ring 108A groove 403 cap 109 channel 501 adaptor body 110 outer surface 501' connection end 111 gap 502 ring 115 thread 503 ring 117 thread 505 cathode body 119 securing portion 505' region 119A portion 506 ring 120 end surface 507 ring 122 distal surface 509 pilot arc connector 123 stabilization portion 509' middle region 123A outer land surface 510 ring 123B angled surface 511 ring 127 thread 513 rear isolator 130 o-ring 513' rear isolator 133 undercut portion 514 ring 140 extension portion 515 ring 516 ring D3 distance 517 ring D4 distance 519

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)
  • Arc Welding In General (AREA)

Claims (10)

  1. Chalumeau à arc plasma (100, 400) comprenant :
    un corps d'adaptateur de cathode (501) comportant au moins deux premiers canaux de scellant formés sur une surface extérieure d'une première extrémité du corps d'adaptateur de cathode pour accepter respectivement au moins deux premiers anneaux de scellant (502, 503), les au moins deux premiers canaux de scellant étant espacés l'un de l'autre d'une distance dans une plage de 2 pour cent à 90 pour cent d'une longueur hors tout du corps d'adaptateur de cathode (501) ;
    un corps de cathode (505) couplé à une deuxième extrémité du corps d'adaptateur de cathode (501), le corps de cathode (505) comportant au moins deux deuxièmes canaux de scellant formés sur une surface extérieure du corps de cathode (505) pour accepter respectivement au moins deux deuxièmes anneaux de scellant (506, 507), les au moins deux deuxièmes canaux de scellant étant espacés l'un de l'autre d'une deuxième distance dans une plage de 2 pour cent à 50 pour cent d'une longueur hors tout du corps de cathode (505) ;
    un connecteur d'arc pilote (509) comportant au moins deux troisièmes canaux de scellant formés sur une surface extérieure du connecteur d'arc pilote (509) pour accepter respectivement au moins deux troisièmes anneaux de scellant (510, 511), les au moins deux troisièmes canaux de scellant étant espacés l'un de l'autre d'une troisième distance dans une plage de 2 pour cent à 90 pour cent d'une longueur hors tout du connecteur d'arc pilote (509) ; et
    un isolateur arrière (513, 513'), un isolateur d'anneau (521) et un corps d'anode (519), l'isolateur arrière (513, 513') isolant le corps de cathode (505) du corps d'anode (519), l'isolateur arrière (513, 513') comportant au moins deux quatrièmes canaux de scellant formés sur une surface extérieure de l'isolateur arrière pour accepter respectivement au moins deux quatrièmes anneaux de scellant (514, 515), les au moins deux quatrièmes anneaux de scellant se mettant en prise avec une surface intérieure du corps d'anode (518) et les au moins deux quatrièmes canaux de scellant étant espacés l'un de l'autre d'une quatrième distance dans une plage de 2 pour cent à 50 pour cent d'une longueur hors tout de l'isolateur arrière (513, 513'), et
    au moins deux cinquièmes canaux de scellant formés sur la surface extérieure de l'isolateur arrière (513, 513') pour accepter respectivement au moins deux cinquièmes anneaux de scellant (516, 517), les au moins deux cinquièmes anneaux de scellant se mettant en prise avec une surface intérieure de l'isolateur d'anneau (521) et les au moins deux cinquièmes canaux de scellant étant espacés l'un de l'autre d'une cinquième distance dans une plage de 2 pour cent à 50 pour cent de la longueur hors tout de l'isolateur arrière (513, 513').
  2. Chalumeau à arc plasma (100, 400) selon la revendication 1,
    dans lequel la première distance est dans une plage de 2 pour cent à 25 pour cent de la longueur hors tout du corps d'adaptateur de cathode, et/ou
    dans lequel la deuxième distance est dans une plage de 2 pour cent à 12 pour cent de la longueur hors tout du corps d'adaptateur de cathode, et/ou
    dans lequel la troisième distance est dans une plage de 2 pour cent à 50 pour cent de la longueur hors tout du connecteur d'arc pilote, et/ou
    dans lequel la quatrième distance est dans une plage de 2 pour cent à 16 pour cent de la longueur hors tout de l'isolateur arrière, et/ou
    dans lequel la cinquième distance est dans une plage de 2 pour cent à 16 pour cent de la longueur hors tout de l'isolateur arrière.
  3. Chalumeau à arc plasma (100, 400) selon la revendication 1 ou 2,
    dans lequel les au moins deux premiers anneaux de scellant sont des joints toriques, et/ou
    dans lequel les au moins deux deuxièmes anneaux de scellant sont des joints toriques, et/ou
    dans lequel les au moins deux troisièmes anneaux de scellant sont des joints toriques, et/ou
    dans lequel les au moins deux quatrièmes anneaux de scellant sont des joints toriques, et/ou
    dans lequel les au moins deux cinquièmes anneaux de scellant sont des joints toriques.
  4. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 3,
    dans lequel les au moins deux premiers anneaux de scellant ont au moins l'une de dimensions identiques et de compositions identiques, ou
    dans lequel les au moins deux premiers anneaux de scellant ont au moins l'une de dimensions différentes et de compositions différentes.
  5. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 4,
    dans lequel la première extrémité du corps d'adaptateur de cathode (501) est à l'opposé de la deuxième extrémité du corps d'adaptateur de cathode (501) dans un sens d'écoulement d'un fluide de refroidissement.
  6. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 5,
    dans lequel les au moins deux deuxièmes anneaux de scellant ont au moins l'une de dimensions identiques et de compositions identiques, ou
    dans lequel les au moins deux deuxièmes anneaux de scellant ont au moins l'une de dimensions différentes et de compositions différentes.
  7. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 6, dans lequel une distance entre un centre de la deuxième distance et un centre de la longueur hors tout du corps de cathode (505) est d'au plus 10 pour cent de la longueur hors tout du corps de cathode (505).
  8. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 7,
    dans lequel les au moins deux troisièmes anneaux de scellant ont au moins l'une de dimensions identiques et de compositions identiques, ou
    dans lequel les au moins deux troisièmes anneaux de scellant ont au moins l'une de dimensions différentes et de compositions différentes.
  9. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 8, dans lequel une distance entre un centre de la troisième distance et un centre de la longueur hors tout du connecteur d'arc pilote (509) est d'au plus 20 pour cent de la longueur hors tout du connecteur d'arc pilote (509).
  10. Chalumeau à arc plasma (100, 400) selon l'une quelconque des revendications 1 à 9,
    dans lequel la quatrième distance est égale à la cinquième distance, ou
    dans lequel la quatrième distance n'est pas égale à la cinquième distance.
EP15715814.8A 2014-03-07 2015-03-09 Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée Active EP3114907B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15715814T PL3114907T3 (pl) 2014-03-07 2015-03-09 Urządzenie do uszczelniania i zabezpieczania komponentów palnika plazmowego chłodzonego cieczą i ulepszona konstrukcja palnika

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201461949573P 2014-03-07 2014-03-07
US14/631,814 US9313871B2 (en) 2013-07-31 2015-02-25 Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch and improved torch design
PCT/IB2015/000297 WO2015132657A1 (fr) 2014-03-07 2015-03-09 Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée

Publications (2)

Publication Number Publication Date
EP3114907A1 EP3114907A1 (fr) 2017-01-11
EP3114907B1 true EP3114907B1 (fr) 2018-02-28

Family

ID=52824505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15715814.8A Active EP3114907B1 (fr) 2014-03-07 2015-03-09 Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée

Country Status (5)

Country Link
EP (1) EP3114907B1 (fr)
JP (1) JP6227800B2 (fr)
CN (1) CN106068680B (fr)
PL (1) PL3114907T3 (fr)
WO (1) WO2015132657A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10917961B2 (en) * 2017-09-13 2021-02-09 Lincoln Global, Inc. High temperature isolating insert for plasma cutting torch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780591A (en) * 1986-06-13 1988-10-25 The Perkin-Elmer Corporation Plasma gun with adjustable cathode
US5105061A (en) * 1991-02-15 1992-04-14 The Lincoln Electric Company Vented electrode for a plasma torch
US5440094A (en) * 1994-04-07 1995-08-08 Douglas G. Carroll Plasma arc torch with removable anode ring
US6215090B1 (en) * 1998-03-06 2001-04-10 The Esab Group, Inc. Plasma arc torch
US8866038B2 (en) * 2007-01-23 2014-10-21 Hypertherm, Inc. Consumable component parts for a plasma torch
US20120031881A1 (en) * 2010-08-09 2012-02-09 The Esab Group, Inc. Blow-Back Plasma Arc Torch With Shield Fluid-Cooled Electrode
US8633417B2 (en) * 2010-12-01 2014-01-21 The Esab Group, Inc. Electrode for plasma torch with novel assembly method and enhanced heat transfer

Also Published As

Publication number Publication date
JP6227800B2 (ja) 2017-11-08
CN106068680B (zh) 2018-09-11
PL3114907T3 (pl) 2018-07-31
EP3114907A1 (fr) 2017-01-11
JP2017514267A (ja) 2017-06-01
CN106068680A (zh) 2016-11-02
WO2015132657A1 (fr) 2015-09-11

Similar Documents

Publication Publication Date Title
US9313871B2 (en) Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch and improved torch design
USRE49153E1 (en) Consumable component parts for a plasma torch
US9386679B2 (en) Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch using a multi-thread connection
CN1988752B (zh) 等离子弧焊炬及组装和拆卸等离子弧焊炬的方法
ES2387581T3 (es) Electrodo para un soplete de arco de plasma de arranque por contacto y soplete de arco de plasma de arranque por contacto que utiliza tales electrodos
US9148943B2 (en) Thermal torch lead line connection devices and related systems and methods
US9642236B2 (en) Thread connection for a torch system
CN107018618B (zh) 冷却管、电极容纳部和电极以及装置和电弧等离子喷枪
AU2014321390B2 (en) Thread connection for a torch system
US9338872B2 (en) Apparatus and method of aligning and securing components of a liquid cooled plasma arc torch
US20170181261A1 (en) Internally energized electrode of a plasma arc torch
EP3114907B1 (fr) Appareil pour sceller et fixer des composants d'un chalumeau à arc de plasma refroidi par liquide et conception de chalumeau améliorée
WO2015015266A1 (fr) Appareil d'alignement et de fixation de composants d'un chalumeau à plasma d'arc refroidi par liquide
US20210045224A1 (en) Connecting Plasma Arc Torches and Related Systems and Methods
US20240138047A1 (en) Electrodes for a plasma arc processing system
EP4058231A1 (fr) Support consommable de chalumeau à arc plasma
WO2017112769A1 (fr) Électrode, alimentée en interne, d'un chalumeau à arc de plasma
CN107750475A (zh) 用于等离子电弧燃烧器的喷嘴

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20161007

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: WINN, JACKIE LAVERNE

Inventor name: NAMBURU, PRAVEEN KRISHNA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: LINCOLN GLOBAL, INC.

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20170912

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 975502

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015008402

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180228

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 975502

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180528

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180529

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180528

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015008402

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180331

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180309

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180309

26N No opposition filed

Effective date: 20181129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180428

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20190215

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20190309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180309

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20150309

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180628

REG Reference to a national code

Ref country code: FI

Ref legal event code: MAE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200309

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20230315

Year of fee payment: 9

Ref country code: PL

Payment date: 20230228

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230331

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240321

Year of fee payment: 10

Ref country code: CZ

Payment date: 20240226

Year of fee payment: 10