Patents by Inventor Jens Kutzbach

Jens Kutzbach 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).

  • Patent number: 7270320
    Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide. When the coil spring is under load, the turns of the transition section come at least in part into contact engagement with a helically-shaped slot in the guide so that the spring stiffness of the antivibration unit increases.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: September 18, 2007
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Johannes Menzel, Günter Wolf, Helmut Lux, Jens Kutzbach
  • Publication number: 20050011714
    Abstract: In order to reduce the formation of inherent vibrations in the coil spring in an anti-vibration element, in particular for a manually operated tool such as a chainsaw, a parting-off grinder or similar device and having a coil spring, an additional mass is positioned on the coil spring.
    Type: Application
    Filed: June 28, 2004
    Publication date: January 20, 2005
    Inventors: Johannes Menzel, Jens Kutzbach
  • Publication number: 20040119216
    Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide.
    Type: Application
    Filed: July 30, 2003
    Publication date: June 24, 2004
    Inventors: Johannes Menzel, Gunter Wolf, Helmut Lux, Jens Kutzbach