Patents by Inventor Sigmar Tomaschko

Sigmar Tomaschko 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).

  • Hand lamp, especially for magnetic crack detection
    Patent number: 7301346
    Abstract: The invention relates to a manual lamp, especially for optical crack testing according to the magnetic powder testing and dye penetration method. Said manual lamp comprises at least one LED having an emission wavelength located in the UVA range as an illuminating means.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: November 27, 2007
    Assignee: Illinois Tool Works, Inc.
    Inventors: Rolf Annighoefer, Sigmar Tomaschko, Thomas Vetterlein
  • Manual lamp, especially for magnetic crack testing
    Publication number: 20070014195
    Abstract: The invention relates to a manual lamp, especially for optical crack testing according to the magnetic powder testing and dye penetration method. Said manual lamp comprises at least one LED having an emission wavelength located in the UVA range as an illuminating means.
    Type: Application
    Filed: April 29, 2004
    Publication date: January 18, 2007
    Applicant: TIEDE GMBH & Risspruefanlagen
    Inventors: Rolf Annighofer, Sigmar Tomaschko, Thomas Vetterlein