Patents by Inventor Volker Krink
Volker Krink has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9743504Abstract: An electrode holder for an arc plasma torch includes an elongate holder body. The holder body includes a holder end for receiving an electrode and a hollow interior. An internal thread is positioned in the hollow interior for screwing in a rear end of said cooling tube. A cylindrical inner surface adjoins the internal thread for centering the cooling tube relative to the electrode holder.Type: GrantFiled: November 25, 2014Date of Patent: August 22, 2017Assignee: Kjellberg Finsterwalde Plasma Und Maschinen GmbHInventors: Frank Laurisch, Volker Krink, Ralf-Peter Reinke
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Patent number: 9743505Abstract: The invention relates to a plasma torch, preferably to a plasma cutting torch, in which a plasma gas PG1 and/or PG2 flows through at least one feed through a housing of the plasma torch gas up to a nozzle opening. A hollow space connected to the feed(s) is also present within the housing and a valve which opens and closes an opening is arranged at the opening at said hollow space and a leading off of plasma gas PG1 and/or PG2 out of the feed(s) up to the nozzle opening can be achieved in the open state of this valve.Type: GrantFiled: January 20, 2016Date of Patent: August 22, 2017Assignee: KJELLBERG-STIFTUNGInventors: Frank Laurisch, Timo Grundke, Rene Nogowski, Volker Krink
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Patent number: 9731375Abstract: A method for plasma cutting a workpiece comprises providing a plasma cutting system having a plasma current source and a plasma torch, the plasma torch having an electrode and nozzle where the nozzle is a small distance from the electrode at a lower end of the plasma torch, forming a plasma chamber between the nozzle and the electrode. A current is produced with a plasma current source and the current flows through the plasma torch during the plasma cutting process. The current is then brought to pulsation during at least a partial time period during the plasma cutting process, with the pulsation occurring in a targeted or controlled manner with a freely selectable frequency.Type: GrantFiled: September 21, 2010Date of Patent: August 15, 2017Assignee: KJELLBERG FINSTERWALDE PLASMA UND MASCHINEN GMBHInventors: Jens Friedel, Gerhard Irrgang, Volker Krink, Jens Ollmann
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Patent number: 9462671Abstract: The invention relates to an electrode structure for plasma cutting torches, wherein a recess or borehole open at one side in the direction of a workpiece to be processed is formed in an electrode holder or in a holding element for receiving an emission insert, in which recess or borehole the inserted emission insert can be fastened in a force transmitting manner, in a shape-matching manner and/or with material continuity. At least one pressure equalization passage and/or an at least temporarily active pressure equalization passage is present between a hollow space formed in a recess or borehole and the emission insert and the environment through the emission insert and/or between an outer jacket surface region of the emission insert and the inner wall of the recess or borehole, which is formed in the holding element or in the electrode holder (7.1).Type: GrantFiled: September 10, 2014Date of Patent: October 4, 2016Assignee: KJELLBERG-STIFTUNGInventors: Ralf-Peter Reinke, Frank Laurisch, Volker Krink
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Publication number: 20160227640Abstract: The invention relates to a plasma torch, preferably to a plasma cutting torch, in which a plasma gas PG1 and/or PG2 flows through at least one feed through a housing of the plasma torch gas up to a nozzle opening. A hollow space connected to the feed(s) is also present within the housing and a valve which opens and closes an opening is arranged at the opening at said hollow space and a leading off of plasma gas PG1 and/or PG2 out of the feed(s) up to the nozzle opening can be achieved in the open state of this valve.Type: ApplicationFiled: January 20, 2016Publication date: August 4, 2016Applicant: Kjellberg-StiftungInventors: Frank LAURISCH, Timo Grundke, Rene NOGOWSKI, Volker KRINK
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Publication number: 20160120014Abstract: The invention relates to a single or multipart insulating component for a plasma torch, particularly a plasma cutting torch, for electrical insulation between at least two electrically conductive components of the plasma torch, characterized in that the insulating component consists of an electrically non-conductive and easily thermally conductive material, or at least one part thereof consists of an electrically non-conductive and easily thermally conductive material. The invention further relates to assemblies and plasma torches having the same and to a method for processing, plasma cutting and plasma welding.Type: ApplicationFiled: July 4, 2014Publication date: April 28, 2016Inventors: Frank LAURISCH, Volker KRINK, Timo GRUNDKE
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Patent number: 9204526Abstract: A cooling tube for an arc plasma torch, comprising an elongate body with an end which can be arranged in the open end of an electrode, and a coolant duct extending therethrough, characterized in that at said end there is a bead-like thickening of the wall of the cooling tube pointing inwards and/or outwards, and an arrangement of a cooling tube for an arc plasma torch, comprising an elongate body with a rear end which can be releasably connected to an electrode holder of an arc plasma torch, and a coolant duct extending therethrough, and an electrode holder for an arc plasma torch, comprising an elongate body with an end for receiving an electrode and a hollow interior, and characterized in that on the outer surface of the cooling tube at least one projection is provided for centring the cooling tube in the electrode holder.Type: GrantFiled: March 24, 2010Date of Patent: December 1, 2015Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Frank Laurisch, Volker Krink, Ralf-Peter Reinke
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Patent number: 9101041Abstract: A plasma torch head, a plasma torch shaft and a plasma torch for providing a quick and simple possibility of changing the plasma torch head are described.Type: GrantFiled: August 13, 2007Date of Patent: August 4, 2015Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Ralf-Peter Reinke, Timo Grundke, Frank Laurisch, Volker Krink
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Patent number: 9079265Abstract: Connection between a plasma torch wearing part and a plasma torch wearing part holder, plasma torch wearing part and plasma torch wearing part holder.Type: GrantFiled: August 22, 2008Date of Patent: July 14, 2015Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Ralf-Peter Reinke, Timo Grundke, Frank Laurisch, Volker Krink
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Patent number: 9073141Abstract: The invention relates to an electrode for plasma torches for plasma cutting and to a use of the electrode for said plasma torch. The electrode in accordance with the invention for plasma cutting torches is formed from an electrode holder and from an emission insert which are connected to one another in a force-fitted and/or shape-matched manner. The emission insert has at least one section along its longitudinal axis which is arranged between two other sections or next to a section which has a reduced outer diameter in a rotationally symmetrical design of the emission insert or has a reduced cross-sectional surface in a non-rotationally symmetrical emission insert with respect to the other section(s).Type: GrantFiled: May 22, 2013Date of Patent: July 7, 2015Assignee: Kjellberg-StiftungInventors: Frank Laurisch, Volker Krink
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Publication number: 20150083695Abstract: An electrode holder for an arc plasma torch includes an elongate holder body. The holder body includes a holder end for receiving an electrode and a hollow interior. An internal thread is positioned in the hollow interior for screwing in a rear end of said cooling tube. A cylindrical inner surface adjoins the internal thread for centering the cooling tube relative to the electrode holder.Type: ApplicationFiled: November 25, 2014Publication date: March 26, 2015Inventors: Frank Laurisch, Volker Krink, Ralf-Peter Reinke
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Publication number: 20150076123Abstract: The invention relates to an electrode structure for plasma cutting torches, wherein a recess or borehole open at one side in the direction of a workpiece to be processed is formed in an electrode holder or in a holding element for receiving an emission insert, in which recess or borehole the inserted emission insert can be fastened in a force transmitting manner, in a shape-matching manner and/or with material continuity. At least one pressure equalization passage and/or an at least temporarily active pressure equalization passage is present between a hollow space formed in a recess or borehole and the emission insert and the environment through the emission insert and/or between an outer jacket surface region of the emission insert and the inner wall of the recess or borehole, which is formed in the holding element or in the electrode holder (7.1).Type: ApplicationFiled: September 10, 2014Publication date: March 19, 2015Inventors: Ralf-Peter REINKE, Frank LAURISCH, Volker KRINK
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Patent number: 8941026Abstract: A nozzle for a liquid cooled plasma torch includes a nozzle bore for the exit of a plasma gas beam at a nozzle tip, a first section, of which the outer surface is essentially cylindrical, and a second section connecting the nozzle tip, of which the second section the outer surface tapers essentially conically towards the nozzle tip, wherein at least one liquid supply groove is provided and extends over a part of the first section and over the second section in the outer surface of the nozzle towards the nozzle tip and at least one liquid return groove separate from the liquid supply groove is provided and extends over the second section.Type: GrantFiled: August 14, 2009Date of Patent: January 27, 2015Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Volker Krink, Frank Laurisch, Timo Grundke
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Patent number: 8921731Abstract: A nozzle protection cap for an arc plasma torch comprises a front end section and a rear end section with a thread region on its inner surface for screwing to a torch body of an arc plasma torch. At least one groove crosses the thread region on the inner surface. A nozzle protection cap holder for the arc plasma torch comprises a section with a thread region on its outer surface for screwing to the nozzle protection cap. At least one groove crosses the thread region on its outer surface. An arc plasma torch comprises a torch body and a nozzle protection cap screwed thereto in a screw connection region. The torch body and/or the nozzle protection cap is/are designed so that at least one channel is formed between them, the channel crossing the screw connection region.Type: GrantFiled: August 4, 2010Date of Patent: December 30, 2014Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Volker Krink, Frank Laurisch, Timo Grundke, Martin Kroschwald
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Patent number: 8853589Abstract: A nozzle for a liquid-cooled plasma torch, comprising a nozzle bore for the exit of a plasma gas jet at a nozzle tip, a first portion, the outer surface of which is substantially cylindrical, and a second portion adjacent thereto towards the nozzle tip, the outer surface of which tapers substantially conically towards the nozzle tip, wherein at least one liquid supply groove and/or at least one liquid return groove is/are provided and extend over the second portion in the outer surface of the nozzle (4) towards the nozzle tip, and wherein the liquid supply groove or at least one of the liquid supply grooves and/or a liquid return groove or at least one of the liquid return grooves also extends/extend over part of the first portion, and there is in the first portion at least one groove which communicates with the liquid supply groove or at least one of the liquid supply grooves or with the liquid return groove or at least one of the liquid return grooves.Type: GrantFiled: May 31, 2010Date of Patent: October 7, 2014Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Volker Krink, Frank Laurisch, Timo Grundke
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Publication number: 20140144891Abstract: The invention relates to a method for the plasma cutting of workpieces. It is the object of the invention to provide possibilities with which improved cutting surfaces can be achieved in plasma cutting which do not require any reworking, or at least only a reduced reworking. In the method in accordance with the invention, a plasma cutting torch having at least one torch body, an electrode and a nozzle is used and the plasma jet is inclined or deflected at least before the traveling over of a workpiece edge at an angle ? with respect to the axis aligned perpendicular to the workpiece surface such that the emission position of the plasma jet from the workpiece is arranged at a spacing in the feed movement direction which is at most half the amount than is the case with a plasma jet incident perpendicular on the workpiece surface.Type: ApplicationFiled: November 15, 2013Publication date: May 29, 2014Applicant: Kjellberg-StiftungInventors: Frank Laurisch, Volker Krink
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Patent number: 8710397Abstract: An electrode for a plasma torch and a plasma torch head comprise an elongated electrode holder with a front surface on the electrode tip and a hole arranged in the electrode tip along a central axis through the electrode holder, and an emission insert arranged in the hole such that an emission surface of the emission insert is exposed. The emission surface is set back relative to the front surface of the electrode holder. An electrode for a plasma torch and a plasma torch head also comprise an electrode socket and an electrode holder, the electrode socket having an internal thread, and the electrode holder having an external thread and an O-ring in a groove in the cylindrical outer surface. The electrode holder is screwed together with the electrode socket via the external thread and the internal thread and sealed by means of the O-ring.Type: GrantFiled: November 27, 2009Date of Patent: April 29, 2014Assignee: Kjellberg Finsterwalde Plasma and Maschinen GmbHInventors: Katrin Jehnert, Martin Kroschwald, Frank Laurisch, Ralf-Peter Reinke, Thomas Steudtner, Volker Krink
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Publication number: 20130313231Abstract: The invention relates to an electrode for plasma torches for plasma cutting and to a use of the electrode for said plasma torch. The electrode in accordance with the invention for plasma cutting torches is formed from an electrode holder and from an emission insert which are connected to one another in a force-fitted and/or shape-matched manner. The emission insert has at least one section along its longitudinal axis which is arranged between two other sections or next to a section which has a reduced outer diameter in a rotationally symmetrical design of the emission insert or has a reduced cross-sectional surface in a non-rotationally symmetrical emission insert with respect to the other section(s).Type: ApplicationFiled: May 22, 2013Publication date: November 28, 2013Inventors: Frank Laurisch, Volker Krink
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Patent number: 8575510Abstract: The invention relates to a liquid-cooled plasma burner, comprising a nozzle bore for the plasma gas jet to exit at a nozzle tip and a first section whose outer surface gradually tapers in the shape of a cone at an angle ? in the direction of the nozzle tip, except for at least one deflection section that extends in the shape of a cone at an angle ? in the direction of the nozzle tip. The invention also relates to an arrangement thereof with a nozzle cap and to a plasma burner comprising such an arrangement.Type: GrantFiled: March 23, 2009Date of Patent: November 5, 2013Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Frank Laurisch, Volker Krink, Timo Grundke, Ralf-Peter Reinke
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Patent number: 8461475Abstract: A system for the thermal processing of workpieces. In this respect, workpieces can be processed by a plasma jet or by a laser beam. The thermal processing of workpieces is done more flexibly and also less expensive in this respect. A laser processing head or a plasma processing head can be connected by a single shaft element.Type: GrantFiled: October 23, 2009Date of Patent: June 11, 2013Assignee: Kjellberg Finsterwalde Plasma und Maschinen GmbHInventors: Volker Krink, Friedrich-Wilhelm Bach, Frank Laurisch, Thomas Ruemenapp