Patents by Inventor Jochen Oerding

Jochen Oerding 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: 9577567
    Abstract: An electric motor in a work apparatus has a power characteristic line which runs between a lower rotational speed of the electric motor and an upper rotational speed of the electric motor. The power characteristic line has a power characteristic with a pronounced maximum (M) and an operating plateau (AP) which lies in a working rotational speed range (AD) of the work apparatus. A method for operating the electric motor provides for configuring the position of the operating plateau (AP) to be variable with respect to the rotational speed of the electric motor to achieve stable operating points over a wide rotational speed range.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: February 21, 2017
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Jochen Oerding, Rene Wichert, Christian Renz, Gernot Liebhard
  • Patent number: 9138912
    Abstract: A power tool has guide bar guiding a saw chain. A drive motor with a sprocket drives the saw chain. A sprocket compartment of the power tool housing has a peripheral wall adjacent to a roof of the saw chain and an ejection opening for cut material. The guide bar has a longitudinal center axis intersecting the saw chain in first and second deflection areas at the sprocket and the nose of the guide bar. The sprocket compartment has an exit opening where the saw chain exits. The peripheral wall of the sprocket compartment and the roof of the saw chain are disposed at a spacing relative to each other that, when the saw chain is standing still, is less than approximately 18 mm at least across 50% of a stretch from the first deflection area to the exit opening and across an entire saw chain width.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: September 22, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Ulrich Kapinsky, Helmut Zimmermann, Jochen Oerding
  • Publication number: 20130318802
    Abstract: A power tool has guide bar guiding a saw chain. A drive motor with a sprocket drives the saw chain. A sprocket compartment of the power tool housing has a peripheral wall adjacent to a roof of the saw chain and an ejection opening for cut material. The guide bar has a longitudinal center axis intersecting the saw chain in first and second deflection areas at the sprocket and the nose of the guide bar. The sprocket compartment has an exit opening where the saw chain exits. The peripheral wall of the sprocket compartment and the roof of the saw chain are disposed at a spacing relative to each other that, when the saw chain is standing still, is less than approximately 18 mm at least across 50% of a stretch from the first deflection area to the exit opening and across an entire saw chain width.
    Type: Application
    Filed: October 12, 2012
    Publication date: December 5, 2013
    Inventors: Ulrich Kapinsky, Helmut Zimmermann, Jochen Oerding