Patents by Inventor Jan-Erik Stahl

Jan-Erik Stahl 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).

  • Negative insert for cutting machining
    Patent number: 7758287
    Abstract: A negative insert for cutting machining has a top side, a clearance side perpendicular thereto and a cutting edge in a region interconnecting these sides and extending substantially in parallel with these sides. The insert has further a flat or rounded chamfer connecting the cutting edge to the clearance side on at least one lateral side of the insert in the region of a corner thereof. The chamfer makes an angle of 1°-15° with the clearance side for enabling application of the chamfer substantially tangentially to a work piece to be machined for bearing of the insert in two dimensions against the work piece during cutting machining operation carried out by the insert.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: July 20, 2010
    Assignee: Seco Tools AB
    Inventors: Per Alm, Carlos Bueno-Martinez, Patrick Jonsson, Jan-Erik Stahl, Mats Jonsson
  • NEGATIVE INSERT FOR CUTTING MACHINING
    Publication number: 20080253848
    Abstract: A negative insert for cutting machining has a top side, a clearance side perpendicular thereto and a cutting edge in a region interconnecting these sides and extending substantially in parallel with these sides. The insert has further a flat or rounded chamfer connecting the cutting edge to the clearance side on at least one lateral side of the insert in the region of a corner thereof. The chamfer makes an angle of 1°-15° with the clearance side for enabling application of the chamfer substantially tangentially to a work piece to be machined for bearing of the insert in two dimensions against the work piece during cutting machining operation carried out by the insert.
    Type: Application
    Filed: October 12, 2007
    Publication date: October 16, 2008
    Applicant: SECO TOOLS AB
    Inventors: Per Alm, Carlos Bueno-Martinez, Patrick Jonsson, Jan-Erik Stahl, Mats Jonsson