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OwnerErnst Miklos, Faith Savguinventors
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A welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, a process gas nozzle that coaxially surrounds at least the guidance means, and a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current. A hollow electrode is provided that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the wire-like welding filler material in potential free manner. The welding torch may be used as part of a welding apparatus for a variety of welding methods.
A welding torch comprising guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch having at least one process gas nozzle that coaxially surrounds at least the guidance means and having a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current, characterised by a hollow electrode that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the welding filler material in potential free manner with no connection to the welding current connector.
A welding apparatus comprising a welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, having at least one process gas nozzle that coaxially surrounds at least the guidance means, and having a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current, characterised by a hollow electrode that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the welding filler material in potential free manner with no connection to the welding current connector, a feed device configured to supply the wire-like welding filler material to the guidance means, a process gas unit configures to supply at least one process gas to the process gas nozzle of the welding torch, and a welding current source that is configured to charge the welding current connector with a welding current.
A welding method wherein a welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, having at least one process gas nozzle that coaxially surrounds at least the guidance means, and having a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current, characterised by a hollow electrode that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the welding filler material in potential free manner with no connection to the welding current connector, comprising feeding a process gas to the process gas nozzle of the welding torch and the welding filler material is advanced in potential free manner without an electrical connection to the welding current connector by the guidance means.
A welding method wherein a welding apparatus comprising a welding torch having guidance means designed to advance a wire-like welding filler material mechanically along an axis at least in a section of the welding torch, having at least one process gas nozzle that coaxially surrounds at least the guidance means, and having a welding current connector that is connected in electrically conductive manner to an element of the welding torch that is configured to conduct electrical current, characterised by a hollow electrode that surrounds the axis coaxially and as the element configured for conducting current is connected in electrically conductive manner to the welding current connector, wherein the guidance means are designed to advance the welding filler material in potential free manner with no connection to the welding current connector, a feed device configured to supply the wire-like welding filler material to the guidance means, a process gas unit configures to supply at least one process gas to the process gas nozzle of the welding torch, and a welding current source that is configured to charge the welding current connector with a welding current, comprising feeding a process gas to the process gas nozzle of the welding torch and the welding filler material is advanced in potential free manner without an electrical connection to the welding current connector by the guidance means.
Dependencies are inferred from the claim text.