Patents by Inventor Jens Friedel

Jens Friedel 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).

  • Protective nozzle cap, plasma arc torch comprising said protective nozzle cap, and use of the plasma arc torch
    Patent number: 11178746
    Abstract: In the case of the nozzle protection cap (7) according to the invention for a plasma arc torch (1), is arranged and fastened at the outside on the tip of the plasma arc torch (1), at which a plasma jet emerges from the plasma arc torch (1) through nozzle-like openings (4a, 7a). The nozzle protection cap (7) is produced from an iron alloy including sulfur in a fraction of at least 0.05%.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 16, 2021
    Assignee: KJELLBERG-STIFTUNG
    Inventors: Jens Friedel, Timo Grundke, Volker Krink
  • PROTECTIVE NOZZLE CAP, PLASMA ARC TORCH COMPRISING SAID PROTECTIVE NOZZLE CAP, AND USE OF THE PLASMA ARC TORCH
    Publication number: 20200045804
    Abstract: In the case of the nozzle protection cap (7) according to the invention for a plasma arc torch (1), is arranged and fastened at the outside on the tip of the plasma arc torch (1), at which a plasma jet emerges from the plasma arc torch (1) through nozzle-like openings (4a, 7a). The nozzle protection cap (7) is produced from an iron alloy including sulfur in a fraction of at least 0.05%.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 6, 2020
    Applicant: KJELLBERG-STIFTUNG
    Inventors: Jens FRIEDEL, Timo GRUNDKE, Volker KRINK
  • 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