Patents by Inventor Michael GÖTZFRIED

Michael GÖTZFRIED 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).

  • Hand-held power tool
    Patent number: 12122030
    Abstract: A hand-held power tool, which has a pneumatic impact mechanism with an impact piston that is able to be moved back and forth along a working axis in a guide tube by a pneumatic spring, is characterized in that a cylindrical surface of the impact piston has a plurality of cutouts that are distributed in the circumferential direction, and the cutouts take up at least 30%, at least 50% and/or at least 70% of the circumference of the cylindrical surface of the impact piston.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: October 22, 2024
    Assignee: Hilti Aktiengesellschaft
    Inventors: Markus Hartmann, Philipp Lorenz, Aaron Wiedner, Michael Götzfried
  • Hand-held power tool
    Publication number: 20230294261
    Abstract: A hand-held power tool, which has a pneumatic impact mechanism with an impact piston that is able to be moved back and forth along a working axis in a guide tube by a pneumatic spring, is characterized in that a cylindrical surface of the impact piston has a plurality of cutouts that are distributed in the circumferential direction, and the cutouts take up at least 30%, at least 50% and/or at least 70% of the circumference of the cylindrical surface of the impact piston.
    Type: Application
    Filed: August 17, 2021
    Publication date: September 21, 2023
    Inventors: Markus HARTMANN, Philipp LORENZ, Aaron WIEDNER, Michael GÖTZFRIED