Patents by Inventor Gerhard Irrgang

Gerhard Irrgang 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).

  • Method for plasma-cutting a workpiece by means of a plasma-cutting system and pulsating current
    Patent number: 9731375
    Abstract: 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: Grant
    Filed: September 21, 2010
    Date of Patent: August 15, 2017
    Assignee: KJELLBERG FINSTERWALDE PLASMA UND MASCHINEN GMBH
    Inventors: Jens Friedel, Gerhard Irrgang, Volker Krink, Jens Ollmann
  • METHOD FOR PLASMA-CUTTING A WORKPIECE BY MEANS OF A PLASMA-CUTTING SYSTEM AND PULSATING CURRENT
    Publication number: 20120199562
    Abstract: 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: Application
    Filed: September 21, 2010
    Publication date: August 9, 2012
    Inventors: Jens Friedel, Gerhard Irrgang, Volker Krink, Jens Ollmann
  • Method for supplying a plasma torch with a gas, mixed gas, or gas mixture, comprising volumetric flow regulation in combination with pressure regulation; and arrangement for carrying out said method
    Patent number: 7326875
    Abstract: A method of supplying a plasma torch with a gas, mixed gas or gas mixture, in which the volume flow of the gas, mixed gas or gas mixture is controlled, characterised in that the volume flow control is effected in combination with a pressure control of the gas, mixed gas or gas mixture in such a way that the pressure control is used to adjust the level of the total volume flow through the nozzle of the plasma torch, and the volume flow control is used to adjust the volume flow portions producing the total volume flow, taking the desired gas composition into account, and an arrangement for carrying out said method.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: February 5, 2008
    Assignee: Kjellberg Finsterwalde Elektroden und Maschinen GmbH
    Inventors: Volker Krink, Gerhard Irrgang, Frank Laurisch, Thomas Steudtner
  • Method for supplying a plasma torch with a gas, mixed gas, or gas mixture, comprising volumetric flow regulation in combination with pressure regulation; and arrangement for carrying out said method
    Publication number: 20060186094
    Abstract: A method of supplying a plasma torch with a gas, mixed gas or gas mixture, in which the volume flow of the gas, mixed gas or gas mixture is controlled, characterised in that the volume flow control is effected in combination with a pressure control of the gas, mixed gas or gas mixture in such a way that the pressure control is used to adjust the level of the total volume flow through the nozzle of the plasma torch, and the volume flow control is used to adjust the volume flow portions producing the total volume flow, taking the desired gas composition into account, and an arrangement for carrying out said method.
    Type: Application
    Filed: July 6, 2004
    Publication date: August 24, 2006
    Inventors: Volker Krink, Gerhard Irrgang, Frank Laurisch, Thomas Steudtner