Patents by Inventor Adalbert Vielberth

Adalbert Vielberth 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).

  • Portable handheld work apparatus
    Publication number: 20080016705
    Abstract: A portable handheld work apparatus has a motor housing (2) wherein a drive motor (18) is mounted. The drive motor (18) drives a work tool. The work tool is operatively connected via a drive shaft (8) to the drive motor (18). A coupling device (65, 66, 67) is mounted in the operative connection between the drive shaft (8) and the work tool in order to avoid a transmission of vibrations of the work tool to the drive shaft (8). The coupling device (65, 66, 67) permits a limited movement of the work tool relative to the drive shaft (8).
    Type: Application
    Filed: July 17, 2007
    Publication date: January 24, 2008
    Inventors: Kai-Ulrich Machens, Philipp Neumann, Thomas Hilt, Gunter Mayer, Adalbert Vielberth