Patents by Inventor Björn Håkansson

Björn Håkansson 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).

  • Thread forming tap with a non-circular cross-section and radially extending cutting edges
    Patent number: 7150588
    Abstract: A thread-forming tap includes an elongated body having, at first end, a connector portion, and having at a second end, a thread-forming portion. The thread-forming portion includes at least one thread-forming helical thread exhibiting a non-circular cross-section having at least three lobes for plastically deforming an interior wall of a workpiece while forming an internal thread therein. A thread relief portion formed by a helical truncated thread, is disposed between the thread-forming thread and a terminal end of the body. Disposed at the end of the elongated body is at least one radially extending cutting edge for cutting parts of the workpiece interior wall.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: December 19, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventor: Björn Håkansson
  • Thread forming tool with annular ridge
    Patent number: 7114891
    Abstract: A thread forming tool includes an elongated body defining a longitudinal center axis. The body including a thread forming portion formed by one or more annular ridges oriented perpendicular to the axis. The body has a non-circular shape in a cross sectional plane oriented perpendicular to the axis at an axial center of the ridge.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: October 3, 2006
    Assignee: Sandvik Intellectual Property AB
    Inventor: Björn Håkansson