Patents by Inventor Christian AHLSTROM

Christian AHLSTROM 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).

  • Drill with grooved flute and method of making drill with grooved flute
    Patent number: 11358229
    Abstract: A drill includes a drill body having a longitudinal axis, a front end, and a frontend portion and at least one flute in the front end portion. A cutting insert is mounted to the drill body in each flute of the at least one flute at the front end of the drill body. The at least one flute includes a plurality of grooves, concave surfaces of adjacent ones of the grooves intersecting to define a ridge separating the grooves.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: June 14, 2022
    Assignee: SECO TOOLS AB
    Inventors: Lars B. Nilsson, Christian Ahlstrom, Michael Svensson
  • DRILL WITH GROOVED FLUTE AND METHOD OF MAKING DRILL WITH GROOVED FLUTE
    Publication number: 20190193171
    Abstract: A drill includes a drill body having a longitudinal axis, a front end, and a frontend portion and at least one flute in the front end portion. A cutting insert is mounted to the drill body in each flute of the at least one flute at the front end of the drill body. The at least one flute includes a plurality of grooves, concave surfaces of adjacent ones of the grooves intersecting to define a ridge separating the grooves.
    Type: Application
    Filed: April 20, 2017
    Publication date: June 27, 2019
    Inventors: Lars B. NILSSON, Christian AHLSTROM, Michael SVENSSON