• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    WELDING TORCH SET. The present invention relates to a welding gun assembly (100) having a connection between a diffuser (120) and the inner gun tube (101) that provides increased resistance between the diffuser (120) and the gun tube ( 101) to prevent inadvertent damage to the welding torch and upstream components. The diffuser (120) comprises an engagement portion which engages, and overlaps, at least a part of a more resistant portion of the internal pistol tube (101). This coupling provides a stronger and more stable connection between the gun tube (101) and the diffuser (120).
    公开号:BR112016015686B1
    申请号:R112016015686-2
    申请日:2015-01-07
    公开日:2021-01-05
    发明作者:Jeffrey L. Kachline
    申请人:Lincoln Global, Inc.；
    IPC主号:
    专利说明:

    PRIORITY
    [001] The present application claims priority over U.S. Provisional Patent Application No. 61 / 924,532, which is incorporated herein by reference in its entirety. TECHNICAL FIELD
    [002] The devices, systems and methods according to the present invention refer to welding and, more particularly, to devices, systems and methods for providing a welding torch of increased durability and welding torch components. More particularly, the present invention relates to a welding torch assembly according to the preamble of claims 1 and 8. BACKGROUND
    [003] In typical GMAW [gas metal arc welding (arc welding with shielding gas)] and GTAW [gas tungsten arc welding (arc welding with tungsten and gas arc)] welding types, a torch / gun is used for welding to provide the arc for welding in automatic, semi-automatic and manual welding operations. Often the torch / gun is handled in a generic way or comes in significant contact with the workpiece, which can severely damage the torch / gun so it cannot be used effectively. For example, in manual and semi-automatic operations, users tend to use the torch as a hammer to eliminate welding slag, while in automatic / robotic welding operations there may be cases where the torch has an impact on the workpiece. work, tools, etc. These events can cause damage to the torch and torch components and can be particularly damaging when the impact loads on the torch are lateral. These charges tend to flex the torch - particularly in the neck portion of the torch, which can adversely affect cable feeding and other torch operations.
    [004] The limitations and additional disadvantages of conventional, traditional and proposed approaches will be apparent to the person skilled in the art by comparing these approaches with the embodiments of the present invention as described in the present application with reference to the figures. BRIEF SUMMARY OF THE INVENTION
    [005] An exemplary embodiment of the present invention is a welding gun assembly featuring a connection between a diffuser and the inner gun tube that provides increased resistance between the diffuser and the gun tube to prevent inadvertent damage from the torch to welding and upstream components. The diffuser comprises an engagement portion which engages in, and extends from, at least a part of a more resistant portion of the internal pistol tube. This coupling provides a stronger and more stable connection between the gun tube and the diffuser.
    [006] Another exemplary embodiment of the present invention is a welding torch assembly that includes an inner gun tube and a diffuser disposed downstream of the inner gun tube. The inner gun tube has a main body portion and a distal end portion disposed downstream of the main body portion. The distal end portion has a smaller wall thickness than that of the main body portion. The inner pistol tube further includes a stepped portion that extends radially from the outer surface of the distal end portion to the outer surface of the main body portion. The diffuser includes a cavity on its upstream side. The distal end portion of the internal gun tube is arranged in the cavity, which is coupled with the diffuser. The diffuser also includes a blocking portion arranged at the respective upstream end. When the inner gun tube fully engages the diffuser, the stepped portion of the inner gun tube comes into contact with the locking portion of the diffuser. Additional embodiments are set out in the description, figures and claims. BRIEF DESCRIPTION OF THE FIGURES
    [007] The above aspects and / or other aspects of the present invention will be more evident through the detailed description of exemplary embodiments of the present invention with reference to the attached figures, in which:
    [008] Fig. 1 illustrates an exemplary embodiment of a portion of a welding gun assembly according to the present invention;
    [009] Fig. 2 illustrates a diffuser and an internal gun tube of the embodiment shown in Fig. 1;
    [0010] Fig. 3 shows an asymmetric view of the diffuser according to Fig. 1;
    [0011] Fig. 4 illustrates another exemplary embodiment of a diffuser according to the present invention, and;
    [0012] Fig. 5 illustrates another view of a torch assembly according to the present invention. DETAILED DESCRIPTION
    [0013] Exemplary embodiments according to the present invention will now be described with reference to the accompanying figures. The exemplary embodiments described are intended to contribute to the understanding of the present invention and are not intended to limit the scope of the present invention in any way. The same reference numbers refer to identical elements throughout this document.
    [0014] It is evident that throughout this application the terms welding torch and welding gun must be understood as replaceable, considering that both terms are used by the person skilled in the art to describe the torch / gun assembly.
    [0015] As discussed above, torches can be damaged by various events, particularly events involving high load impacts. In robotic applications this can occur when the torch inadvertently impacts the workpiece. These impacts are particularly damaging when the torch has a swan neck portion. A swan neck portion is located upstream of the distal working end of the torch and is typically a flex in the gun tube having an angle in the range of 20 degrees to 60 degrees. It is in the region of this flexion that many cases of damage occur. More particularly, due to the pre-existing bending in the torch this region is more susceptible to additional bending when loads are applied to the torch. When this flexion region is flexed further due to external loads, it can severely prevent the passage of a consumable through the gun tube. In some extreme cases the bending can be large enough to completely block the path of the consumable and even the shielding gas. Furthermore, in the case of known torches, due to the existing torch construction, the connection between the torch diffuser and the inner gun tube is such that there is a structural weakness in the structure or the inner gun tube is also highly susceptible to damage. Embodiments of the present invention address these issues and create a torch with increased integrity and usability.
    [0016] Figure 1 shows the working end portion of an exemplary torch assembly 100 in accordance with the present invention. For reasons of clarity, the gooseneck portion of the pistol tube is not shown in this figure. Furthermore, considering that the construction and operation of welding torches is known, the details of this construction and operation will not be discussed in more detail in this document. As shown, torch assembly 100 consists of a number of components and is used to provide a consumable and a shielding gas for the workpiece for a welding operation. The torch assembly 100 comprises an internal pistol tube 101 having a main body portion (or upstream portion) 102 and a distal end portion 110, wherein the main body portion 102 has a greater wall thickness than the portion distal end 110 as shown. Covering the inner gun tube 101 is an insulator 103 and an outer gun tube liner 105. Threaded at the distal end 110 of the gun tube 101 is a diffuser 120 that helps to direct and properly distribute shielding gas for operation welding. Coupled to the downstream end of the diffuser 120 is a contact tip 130, which is typically used to pass the welding current to the consumable that is passing through the center of the contact tip 130 during welding. Threaded on the outer side of the diffuser 120 is a nozzle 140, where the nozzle 140 consists of an internal nozzle component 141 which is threaded on the diffuser, as shown, by an insulating portion 143 and an outer nozzle portion 145. A insulating portion 143 electrically isolates the outer nozzle portion 145 from the electrically active components in the torch assembly 100. The nozzle 140 is used to direct the shielding gas from the diffuser 120 to the distal end of the torch assembly 100 and the workpiece for welding.
    [0017] As shown in Figure 1, the structural connection between the internal gun tube 101 and the diffuser 120 is such that the connection increases the structural integrity. This connection is also shown in Figure 2, omitting some of the components described above, for the sake of clarity. As shown, the distal end portion 110 of the inner gun tube 101 has a wall thickness that is less than that of the wall thickness of the upstream portion 102 (that is, the main body portion) of the inner gun tube 101. The distal end portion 110 is inserted and mechanically coupled (for example, using screws), into an end cavity 131 of diffuser 120 where an upstream portion of end cavity 131 has an internal diameter larger than a downstream portion of the end cavity 131 as shown in Figure 1. Diffuser 120 further has a diffuser cavity 122 which is disposed downstream of a shoulder portion 129, wherein the shoulder portion 129 separates end cavity 131 of diffuser 120 from the cavity diffuser 122. The inner gun tube 101 also has a distal end 108 which, when fully inserted into the end cavity 131 of diffuser 120, creates a small int space between distal end 108 and shoulder portion 129. In exemplary embodiments, this interstice is very small, but distal end 108 does not come into contact with shoulder portion 129. Any contact between these surfaces can compromise construction and the proper integrity of the torch assembly 100. In addition, as shown in each of Figures 1 and 2, the upstream end of diffuser 120 comprises a locking portion (or stepped portion) 123 that extends radially outwardly from from the outer surface of the diffuser 120. When fully assembled, the locking portion 123 engages and locks the inner gun tube 101 so as to engage the upstream portion 102 of the gun tube 101. More particularly, the locking portion 123 engages in the inner gun tube 101 in its thickest portion. This is discussed in more detail below.
    [0018] As shown in the exemplary embodiments according to Figures 1 and 2, the transition between the upstream portion 102 and the distal end portion 110 of the gun tube 101 has a locking shoulder portion (or stepped portion) ) 107 that extends radially from the outer wall of the distal end portion 110 to the outer wall of the upstream portion 102 of the inner gun tube 101. When fully assembled, the locking portion 123 of the diffuser 120 engages the shoulder portion of lock 107 and on the outer surface of the upstream portion 102. As is evident in Figure 2, the locking portion 123 of diffuser 120 surrounds the locking shoulder portion 107 of the inner gun tube 101 radially outwardly from the locking shoulder portion 107. More particularly, the locking portion 123 comprises a shoulder engaging portion 125, which contacts the locking shoulder portion 107 when the diffuser 120 is fully installed. In addition, the locking portion 123 comprises an extension portion 127 that extends along a length of the outer surface of the upstream portion 102 of the inner gun tube 101 (or in an axial direction of the inner gun tube 101). The extension portion 127 that defines the upstream portion of the end cavity 131 having the largest inner diameter, comprises an inner surface 128 that engages the outer surface of the upstream portion 102. In exemplary embodiments according to the present invention, the engagement between the inner surface 128 and the outer surface of the upstream portion 102 is a friction fitting connection in which there is at least some contact between the surfaces. When this connection is too loose then some of the structural integrity improvements according to the present invention may not be fully realized. In addition, in some exemplary embodiments, the transition between the inner surface 128 and the shoulder engaging portion 125 (that is, the inner corner portion of the stepped portion) is chamfered or rounded. This contributes to the reduction of stress concentrations at this connection point.
    [0019] In exemplary embodiments according to the present invention, the radial height (or radial thickness) of the shoulder portion 107 is in the range of 10% to 20% of the outer diameter of the upper portion 102 of the inner pistol tube 101 at the connection between the diffuser 120 and the inner gun tube 101. In other exemplary embodiments, the radial height is in the range of 10% to 15%. This radial height (distance between the outer surface of the distal end portion 110 and the outer surface of the upper portion 102) provides sufficient structural stability, ensuring that the structural integrity of the gun tube 101 is maintained. In addition, in additional exemplary embodiments , the length of the inner surface 128 is at least as long, or longer, than the radial height of the shoulder portion 107. That is, the length of the inner surface 128 of the locking portion 123 in the inner gun tube 101 is at least so long, or longer, that the height difference between the distal end portion 110 and the upstream portion 102 of the tube 101. In exemplary embodiments of the present invention, the inner surface 128 is longer than the shoulder portion 107 over a distance ranging from 0% to 45% of the locking shoulder portion 107. In other exemplary embodiments of the present invention, the surface and inner 128 is longer than the shoulder portion 107 by a distance ranging from 20% to 45% of the height of the locking shoulder portion 107. With the inner surface 128 longer than the height of the shoulder portion blocking 107 a significant increase in flexural strength is achieved between the diffuser 120 and the inner gun tube 101. However, when the length of the inner surface 128 is too long, it is difficult to ensure the desired fit between the components to achieve integrity structural desired.
    [0020] With the connection structure described above, any inadvertent loads or forces exerted on the nozzle / diffuser are directed directly to the thickest portion (that is to say the upstream portion) 102 of the internal gun tube 101. This connection structure it was not previously used in the construction of pistols / torches. In some known connection methodologies, the diffuser is coupled only to a narrow portion of the inner gun tube. In a connection structure of this nature, any charges on the nozzle / diffuser are directed to only a thinner portion of the gun tube, which can cause severe damage to the gun tube - sometimes requiring replacement. With the connection structure described in this document, a construction is achieved that significantly resists lateral loads and axial loads on the torch. In fact, torches built as described in this document withstand approximately twice the impact loads as known torches without the need for significant thickness increases in components. With the construction described in this document, the forces and impact loads are more easily directed to the upper portion of the inner gun tube 101, making the construction more stable. Figure 3 shows an asymmetric view of the diffuser 120 described above.
    [0021] Another exemplary embodiment of the present invention is shown in Figure 4. In this embodiment, diffuser 120 further includes a rupture recess 200 on an outer surface of diffuser 120. As shown in Figure 4, this recess 200 may be arranged downstream of the end cavity 131 of the diffuser 120. The rupture recess 200 provides a weakening point in the diffuser 120 so that when a force or a load is applied on the distal end of the torch, the diffuser 120 breaks in the rupture recess 200. Despite this destroying the diffuser, it can save any components of the welding system upstream of the diffuser 120 and it can save components at the torch end, such as nozzle components. That is, recess 200 must be constructed in such a way that when the torch assembly 100 is subjected to an impact load or a force above a certain limit, the downstream portion of diffuser 120 (downstream of recess 200) breaks of the upstream portion of the diffuser 120 that remains coupled with the inner gun tube 101. This feature ensures that no upstream components, such as robotic arm components or the torch neck portion, etc., are damaged when a impact. In exemplary embodiments, the shape and depth of the recess must be determined in order to achieve optimal breaking conditions. For example, in exemplary embodiments, the rupture recess 200 has a depth ranging from 35% to 65% of the diffuser wall thickness 120 at the recess point 200. In addition, in exemplary embodiments, recess 200 may have a tapered or narrow bottom surface for the recess (that is to say a V-shaped groove) 200. This is shown in Figure 4, which presents recess 200 as triangular. This shape helps to concentrate the stresses in the recessed portion 200 and ensures that the diffuser 120 breaks at the desired location. It is evident that the recessed portion 200 can take other forms as long as the desired breaking properties are achieved.
    [0022] Figure 5 shows a typical torch or pistol assembly according to the present invention with a neck portion 10.
    [0023] Although the object claimed by the present application has been described with reference to some embodiments for the person skilled in the art, it is evident that various changes can be made and that equivalent equivalents can be substituted without leaving the scope of the claimed object. In addition, many modifications can be made to adapt a specific situation or material to the teachings of the claimed object without leaving its scope. Accordingly, the object claimed is not intended to be limited to the specific embodiments disclosed, but the object claimed includes all embodiments that fall within the scope of the appended claims. REFERENCE NUMBERS 100 Torch assembly 101 Gun tube 102 Main body portion 103 Insulation 107 Locking shoulder portion 108 Distal end portion 110 Distal end portion 120 Diffuser 122 Diffuser cavity 123 Locking portion 125 Shoulder hitch portion 127 Portion extension length 128 Inner surface 129 Shoulder portion 130 Contact tip 131 Cavity 140 Nozzle 141 Internal nozzle component 143 Insulating portion 145 External nozzle portion 200 Recessed
    权利要求:
    Claims (23)
    [0001]
    1. WELDING TORCH ASSEMBLY (100), characterized by: an inner gun tube (101) including a main body portion (102) having a first wall thickness, a distal end portion (110) disposed downstream the main body portion (102) and having a second wall thickness less than the first wall thickness, and a staggered first portion (107) extending radially from an outer surface of the distal end portion (110) to a surface external of the main body portion (102), and; a diffuser (120) configured to couple with a contact tip (130) to pass the welding current into a consumable welding wire received by the diffuser (120) through the inner gun tube (101), arranged downstream of the tube of internal pistol (101), in which the diffuser (120) includes a cavity (131) arranged on a side upstream of the diffuser (120), in which the cavity (131) has a first portion which receives the distal end portion (110) of the inner gun tube (101), and a second portion receiving a portion of the main body portion (102) of the inner gun tube (101), a second stepped portion (123) disposed at an upstream end of the diffuser (120), which extends radially outwardly from the first portion of the cavity (131) to the second portion of the cavity (131), and an axial extension portion that extends in an axial direction to define the second portion of the cavity, in which the second staggered portion (123) comes into contact with the staggered first portion (107) when the inner gun tube (101) engages fully with the diffuser (120), where the diffuser (120) includes a shoulder portion (129) that extends radially at one end downstream of the cavity ( 131), and an interstice exists between the distal end portion (110) of the inner gun tube (101) and the shoulder portion (129) when the inner gun tube (101) fully engages the diffuser, and where the ratio between an axial length of an inner surface of the axial extension portion (127) and a radial thickness of the first stepped portion (123) is 1: 1.45.
    [0002]
    2. ASSEMBLY according to claim 1, characterized in that the internal surface of the axial extension portion (127) is engaged with the external surface of the main body portion (102).
    [0003]
    ASSEMBLY according to claim 2, characterized in that the internal surface of the axial extension portion (127) is engaged with the external surface of the main body portion (102) by means of a friction fit.
    [0004]
    4. ASSEMBLY, according to claim 1, characterized in that the radial thickness of the first stepped portion (107) is in the range of 10% to 20% of an outside diameter of the main body portion (102).
    [0005]
    5. ASSEMBLY according to claim 1, characterized in that an inner corner portion of the second stepped portion is chamfered or rounded.
    [0006]
    6. ASSEMBLY, according to claim 1, characterized in that the cavity accepts the distal end portion (110) of the inner gun tube (101) by means of a threaded connection to couple the diffuser (120) to the inner gun tube ( 101).
    [0007]
    7. ASSEMBLY, according to claim 1, characterized in that the diffuser (120) further includes a rupture recess (200) on the outer surface of the diffuser (120) and the rupture recess (200) is arranged downstream of the diffuser cavity (122).
    [0008]
    8. ASSEMBLY according to claim 7, characterized in that the rupture recess (200) is a V-shaped groove.
    [0009]
    9. ASSEMBLY, according to claim 1, characterized in that the proportion is 1.2: 1.45.
    [0010]
    10. WELDING TORCH ASSEMBLY (100), characterized by: an internal gun tube (101) including a main body portion (102) having a first wall thickness, a distal end portion (110) disposed downstream the main body portion (102) and having a second wall thickness less than the first wall thickness, and a stepped portion (107) extending radially from an outer surface of the distal end portion (110) to an outer surface the main body portion (102), and; a diffuser (120) configured to couple with a contact tip (130) to pass the welding current into a consumable welding wire received by the diffuser (120) through the internal gun tube (101) disposed downstream of the tube inner gun (101), in which the diffuser (120) includes a cavity (131) arranged on a side upstream of the diffuser (120) in which the distal end portion (110) of the inner gun tube (101) is arranged and coupled with the diffuser (120), and a locking portion (107) which is arranged at an end upstream of the diffuser (120), wherein the stepped portion (107) comes into contact with the locking portion (107) when the inner gun tube (101) engages fully with the diffuser (120), where an inner surface of the locking portion (107) is engaged with the outer surface of the main body portion (102), where the diffuser (120) includes a shoulder portion (129) that extends radially at one end downstream of the cavity (131) , and an interstice exists between the distal end portion (110) of the inner gun tube (101) and the shoulder portion (129) when the inner gun tube (101) engages fully with the diffuser, and where the ratio between an axial length of an inner surface of the locking portion (107) engaged with the outer surface of the main body (102) and a radial thickness of the stepped portion (123) is 1: 1.45.
    [0011]
    11. ASSEMBLY according to claim 10, characterized in that the axial length of the internal surface of the locking portion (107) engaged on the external surface of the main body portion (102) is equal to the radial thickness of the stepped portion (123).
    [0012]
    12. ASSEMBLY, according to claim 10, characterized in that the cavity accepts the distal end portion (110) of the inner gun tube (101) by means of a threaded connection to couple the diffuser (120) to the inner gun tube ( 101).
    [0013]
    13. ASSEMBLY, according to claim 10, characterized in that the diffuser (120) further includes a rupture recess (200) on the outer surface of the diffuser (120) and the rupture recess (200) is arranged downstream of the cavity (131 ) of the diffuser (120).
    [0014]
    14. ASSEMBLY, according to claim 13, characterized in that the rupture recess (200) is a V-shaped groove.
    [0015]
    15. ASSEMBLY, according to claim 10, characterized in that the proportion is 1.2: 1.45.
    [0016]
    16. ASSEMBLY according to claim 10, characterized in that the internal surface of the locking portion (107) is engaged with the external surface of the main body portion (102) by means of a friction fit.
    [0017]
    17. ASSEMBLY according to claim 10, characterized in that the radial thickness of the first stepped portion (107) is in the range of 10% to 20% of an outside diameter of the main body portion (102).
    [0018]
    18. DIFFUSER FOR A WELDING TORCH ASSEMBLY (100), characterized by comprising: a cavity (131) arranged on a side upstream of the diffuser (120), in which the cavity (131) has: a first portion that is configured to accept the distal end portion (110) of the inner gun tube (101) thereon, and a second portion which is configured to accept a portion of the main body portion (102) of the inner gun tube (101) thereon , and a second staggered portion (123) disposed on a side upstream of the diffuser (120), which extends radially outwardly from the first portion of the cavity (131) to the second portion of the cavity (131), an extension portion (127) axial extending in an axial direction to define the second portion of the cavity (131), wherein the ratio between an axial length of an inner surface of the extension portion (127) axial to a radial thickness of the staggered portion ( 123) is 1: 1.45. wherein the stepped portion is configured to contact the second stepped portion (123) of the inner gun tube (101) when the inner gun tube (101) engages fully with the diffuser, with one side downstream of the diffuser ( 120) is configured to couple with a contact tip (130) to pass the welding current into a consumable welding wire received by the diffuser (120) through the internal gun tube (101).
    [0019]
    19. DIFFUSER, according to claim 18, characterized by further comprising a rupture recess (200) in an external surface of the diffuser (120) configured to provide a weak point in the diffuser, where, when a force or load being above a limit is applied, the diffuser (120) fails in the rupture recess (200).
    [0020]
    20. DIFFUSER according to claim 18, characterized in that the upstream side of the diffuser (120) is configured to receive a shielding gas from the inner gun tube (101) during a welding operation.
    [0021]
    21. DIFFUSER according to claim 20, characterized in that the downstream side of the diffuser (120) is configured to direct and distribute the shielding gas received by the upstream side of the diffuser during the welding operation.
    [0022]
    22. DIFFUSER according to claim 18, characterized in that the ratio is 1.2: 1.45.
    [0023]
    23. DIFFUSER according to claim 18, characterized in that the internal surface of the axial extension portion (127) is configured to engage the external surface of the main body portion (102) of the internal pistol tube (101) by means of a friction fitting.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112016015686B1|2021-01-05|welding torch set and diffuser for welding torch set
    ES2239051T3|2005-09-16|PLASMA ARCH, CATODE AND ELECTRODE BRACKET FOR PLASMA ARCH BRUSH.
    US8338753B2|2012-12-25|Contact tip and diffuser
    US9382918B2|2016-07-05|Ceiling fan
    CL2008003493A1|2010-01-04|Dowelled connection for excavation equipment, has a first connection element with a threaded opening, a second element with a hole, a pin that extends to the opening and the hole that contacts a threaded insert that engages in the opening; and a drill set.
    CN102128199A|2011-07-20|Masonry anchor
    JP5546077B2|2014-07-09|Pipe fitting
    US8894101B2|2014-11-25|Protected integral metal to metal seal
    EP1744087B1|2008-12-10|Fastening member for pipes and cables
    US10247344B2|2019-04-02|Fluid passage structure
    US20170299095A1|2017-10-19|Pipe joint
    JP2018027568A5|2020-08-06|
    EP3529525B1|2021-12-01|System having pressurized fluid flowing therethrough comprising a coupling nut
    KR101906327B1|2018-10-10|Joining part having sleeve
    KR101211297B1|2012-12-11|Pressure wheel for preventing separation
    KR102364291B1|2022-02-18|Sealing device installed in oil filled cable and installed method
    KR20210133943A|2021-11-08|Sealing device installed in oil filled cable and installed method
    CN105080913B|2017-11-07|The safe cleansing pin of oil nozzle
    ES2717662A1|2019-06-24|BOCACHA-MUFFLER ASSEMBLY FOR FIREARMS AND ASSEMBLY ASSEMBLY PROCEDURE BOCACHA-MUFFLER FOR FIREARMS |
    JP2017106605A|2017-06-15|Washer for fastening confirmation and fastening component for fastening confirmation
    JP2015151965A|2015-08-24|delivery pipe
    KR20150093950A|2015-08-19|combitation structure
    同族专利:
    公开号 | 公开日
    KR20160128301A|2016-11-07|
    US10286477B2|2019-05-14|
    CN110814484A|2020-02-21|
    JP6480942B2|2019-03-13|
    US10293426B2|2019-05-21|
    US20150190879A1|2015-07-09|
    US20170129037A1|2017-05-11|
    CN110814483A|2020-02-21|
    CN105873712B|2019-11-26|
    WO2015104630A3|2015-11-12|
    DE112015000350T5|2016-10-20|
    WO2015104630A2|2015-07-16|
    CN105873712A|2016-08-17|
    US20150360314A1|2015-12-17|
    JP2017507783A|2017-03-23|
    US10293427B2|2019-05-21|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2044515A5|1969-05-23|1971-02-19|Pont A Mousson|
    JPS61177776A|1985-02-01|1986-08-09|Hitachi Ltd|Semiconductor device|
    JPH034444Y2|1985-04-18|1991-02-05|
    JPH0513038B2|1986-08-25|1993-02-19|Mitsubishi Electric Corp|
    JPS63104796A|1986-10-21|1988-05-10|Mitsubishi Electric Corp|Processing head of laser beam machine|
    US5491321A|1992-02-26|1996-02-13|Tweco Products, Inc.|Welding gun assembly|
    US5440100A|1992-02-26|1995-08-08|Tweco Products, Inc.|Tips and diffusers for MIG welding guns|
    US5683599A|1995-10-25|1997-11-04|Centricut, Llc|Mounting scheme for a plasma arc torch|
    IT1309704B1|1999-02-19|2002-01-30|Eni Spa|INTEGRAL JUNCTION OF TWO PIPES|
    US6307179B1|1999-10-15|2001-10-23|American Torch Tip Company|Wire welding gun having improved connection between a contact tip and its mating part|
    US6525297B2|2001-02-16|2003-02-25|Illinois Tool Works Inc.|Mig gun nozzle with reduced cross-sectional area at the front|
    US7105775B2|2002-08-09|2006-09-12|Illinois Tool Works Inc.|Welding gun having contact tip and method of operating same|
    US6852950B2|2002-08-09|2005-02-08|Illinois Tool Works Inc.|Welding gun having a removable nozzle end portion and method for operating same|
    US7176412B2|2004-03-31|2007-02-13|Tregaskiss Ltd|Taper locking features between components of a welding device|
    US7971804B2|2004-10-26|2011-07-05|Roberts James C|Channeled shaft check valve assemblies|
    US7342200B2|2005-06-28|2008-03-11|Lincoln Global, Inc.|Torch for arc welding|
    US8552341B2|2005-09-19|2013-10-08|Lincoln Global, Inc.|Torch for arc welding gun|
    BRPI0620175B1|2005-12-21|2018-11-21|Taimi R & D Inc|self-lubricating articulated coupling|
    US8604388B2|2006-03-13|2013-12-10|Illinois Tool Works Inc.|Contact tip assembly for a welding torch|
    US20080035623A1|2006-08-11|2008-02-14|Illinois Tool Works Inc.|Contact tip and assembly|
    US7811278B2|2007-02-11|2010-10-12|Cuffco, Llc|Fluid connector|
    AT505658B1|2008-01-23|2009-03-15|Fronius Int Gmbh|GAS JET FIXING|
    US8357877B2|2009-06-11|2013-01-22|Illinois Tool Works Inc.|Front consumables for pulse GMAW torches|
    US8304693B2|2009-07-13|2012-11-06|Illinois Tool Works Inc.|Refractory materials reinforced composites for the GMAW contact tips|
    JP5448057B2|2009-09-07|2014-03-19|株式会社ダイヘン|Consumable electrode gas shield arc welding torch|
    CN102648069B|2009-09-12|2016-01-20|特威科产品有限公司|The welding gun that parts reduce and welding system; There is the cable bearing assembly of insulating sleeve|
    ES1071271Y|2009-10-14|2010-05-06|Representaciones Hermanos Past|DIFFUSER NOZZLE FOR WELDING GUNS|
    US8338753B2|2010-04-30|2012-12-25|Lincoln Global, Inc.|Contact tip and diffuser|
    JP5639847B2|2010-10-28|2014-12-10|株式会社ダイヘン|Gas flow controller for arc welding|
    JP5271338B2|2010-11-24|2013-08-21|株式会社神戸製鋼所|Welding torch, welding tip, and welding robot|
    FR2971723A1|2011-02-18|2012-08-24|Air Liquide Welding France|Cutting head useful in laser or plasma cutting machine, comprises main body to which lower part of laser cutting or plasma cutting nozzle is connected, and electrically conductive fragile element placed between main body and low part|
    WO2013071245A1|2011-11-13|2013-05-16|Victor Equipment Company|Alignment/centering device for conductor tube for use in a gmaw manual/robotic arc welding mig gun; corresponding arc welding apparatuses|
    US9527155B2|2013-03-13|2016-12-27|Lincoln Global, Inc.|Welding diffuser with debris removal|
    US9364915B2|2013-03-15|2016-06-14|Lincoln Global, Inc.|Welding diffuser insert|
    US9308599B2|2013-03-15|2016-04-12|Lincoln Global, Inc.|Welding gun with debris removal and motor cooling|
    US10293426B2|2014-01-07|2019-05-21|Lincoln Global, Inc.|Increased durability welding torch assembly and components|
    US10155280B2|2014-03-25|2018-12-18|Elco Enterprises, Inc.|End assembly for welding device|US10293426B2|2014-01-07|2019-05-21|Lincoln Global, Inc.|Increased durability welding torch assembly and components|
    US9950386B2|2014-03-25|2018-04-24|Elco Enterprises, Inc.|Method and end assembly for welding device|
    US10583514B2|2015-09-18|2020-03-10|Illinois Tool Works Inc.|Contact tip rotary lock of a welding torch|
    US10773332B2|2015-09-18|2020-09-15|Illinois Tool Works Inc.|Contact tip and receiving assembly of a welding torch|
    US20170080510A1|2015-09-18|2017-03-23|Illinois Tool Works Inc.|Contact tip and coupling assembly of a welding torch|
    US10786863B2|2016-12-28|2020-09-29|Illinois Tool Works Inc.|Nozzle and gas diffuser assemblies for welding torches|
    US10882133B2|2017-01-31|2021-01-05|Illinois Tool Works Inc.|Tip-retention device for use with a welding system|
    US11103949B2|2017-04-03|2021-08-31|Illinois Tool Works Inc.|Quick connect configurations for welding necks and gas diffusers|
    JP2019025530A|2017-08-01|2019-02-21|株式会社ダイヘン|Power feeding chip and welding torch|
    US11268693B2|2018-02-06|2022-03-08|Illinois Tool Works Inc.|Nozzle assemblies having multiple attachment methods|
    WO2019180841A1|2018-03-20|2019-09-26|株式会社Ｆｕｊｉ|Plasma device, dummy nozzle for plasma head|
    法律状态:
    2019-08-06| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-08| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-01-05| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/01/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201461924532P| true| 2014-01-07|2014-01-07|
    US61/924,532|2014-01-07|
    US14/589,226|US10293426B2|2014-01-07|2015-01-05|Increased durability welding torch assembly and components|
    US14/589,226|2015-01-05|
    PCT/IB2015/000009|WO2015104630A2|2014-01-07|2015-01-07|Increased durability welding torch assembly and components|
    [返回顶部]