Patents by Inventor Åke Sjölander

Åke Sjölander 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).

  • Cutting insert for drill
    Patent number: 6527486
    Abstract: A cutting insert for a during includes a broken main cutting edge, the ends of which join respective additional edges of the insert by curved nose portions. Each curved nose portion forms a curved cutting edge defined by at least three sequentially arranged curved cutting edge segments defined by respective radii of different sizes. A first of the segments joins one end of the main cutting edge and has a first radius. The next segment has a radius of different length than the first radius and projects farther laterally than the first segment to perform a wiping function.
    Type: Grant
    Filed: April 13, 2001
    Date of Patent: March 4, 2003
    Assignee: Sandvik Aktiebolag
    Inventors: Jörgen Wiman, Åke Sjölander