Patents by Inventor Harald Griem

Harald Griem 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 and apparatus for forming corona shielding
    Patent number: 9843246
    Abstract: A method and device for forming corona shielding on a winding bar for high-voltage machines has end corona shielding in a first section and outer corona shielding in a second section that adjoins the first section. The method includes providing a first composition, including a carrier material and a first filler therein and a first electrical resistance; providing a second composition, including the same carrier material and a second filler therein and a second electrical resistance, wherein the first and second fillers contain an identical dopable semiconductor material, doping of which determines electrical resistance of the first and second fillers, and wherein the second resistance differs from the first resistance; applying the first composition in the first section to form the end corona shielding; and applying the second composition in the second section to form the outer corona shielding.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: December 12, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Harald Griem, Steffen Lang, Friedhelm Pohlmann, Christian Staubach
  • METHOD AND APPARATUS FOR FORMING CORONA SHIELDING
    Publication number: 20150357890
    Abstract: A method and device for forming corona shielding on a winding bar for high-voltage machines has end corona shielding in a first section and outer corona shielding in a second section that adjoins the first section. The method includes providing a first composition, including a carrier material and a first filler therein and a first electrical resistance; providing a second composition, including the same carrier material and a second filler therein and a second electrical resistance, wherein the first and second fillers contain an identical dopable semiconductor material, doping of which determines electrical resistance of the first and second fillers, and wherein the second resistance differs from the first resistance; applying the first composition in the first section to form the end corona shielding; and applying the second composition in the second section to form the outer corona shielding.
    Type: Application
    Filed: January 15, 2013
    Publication date: December 10, 2015
    Applicant: Siemens Aktiengesellschaft
    Inventors: Harald Griem, Steffen Lang, Friedhelm Pohlmann, Christian Staubach