Patents by Inventor Henrich Strackerjahn

Henrich Strackerjahn 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).

  • Ball autofrettage
    Patent number: 8474293
    Abstract: The invention relates to a method of increasing the dynamic pressure resistance of a metal component with a tubular inner space, in which a hard metal ball is forced under high pressure through the interior of the tubular inner space, wherein the hard metal ball has a diameter that is greater than the inside diameter of the tubular inner space before the hard metal ball is forced through.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: July 2, 2013
    Assignee: Sandvik Materials Technology Deutschland GmbH
    Inventors: Henrich Strackerjahn, Matthias Goken
  • Ball autofrettage
    Publication number: 20100077818
    Abstract: The invention relates to a method of increasing the dynamic pressure resistance of a metal component with a tubular inner space, in which a hard metal ball is forced under high pressure through the interior of the tubular inner space, wherein the hard metal ball has a diameter that is greater than the inside diameter of the tubular inner space before the hard metal ball is forced through.
    Type: Application
    Filed: August 24, 2007
    Publication date: April 1, 2010
    Inventors: Henrich Strackerjahn, Matthias Göken