Patents by Inventor Ulf Bannick

Ulf Bannick 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: 10774804
    Abstract: A method is for the safe starting of a combustion engine in a handheld, portable work apparatus. When starting, start rpm limiting is activated when the rotational speed of the combustion engine exceeds an activation rotational speed that lies above the coupling rotational speed of a centrifugal coupling. After activating the start rpm limiting for at least one working cycle, an intervention in the ignition is carried out such that the rotational speed of the combustion engine decreases. After the rotational speed has decreased below a lower engagement rotational speed, an intervention in the ignition is carried out such that the rotational speed increases. If the rotational speed exceeds an upper engagement rotational speed, an intervention in the ignition is again carried out such that the rotational speed decreases. The upper engagement rotational speed and/or the lower engagement rotational speed is/are changed with an increasing number of consecutive working cycles.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 15, 2020
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Clemens Klatt, Johannes Lang, Michael Unterkircher, Ulf Bannick
  • Publication number: 20200040863
    Abstract: A method is for the safe starting of a combustion engine in a handheld, portable work apparatus. When starting, start rpm limiting is activated when the rotational speed of the combustion engine exceeds an activation rotational speed that lies above the coupling rotational speed of a centrifugal coupling. After activating the start rpm limiting for at least one working cycle, an intervention in the ignition is carried out such that the rotational speed of the combustion engine decreases. After the rotational speed has decreased below a lower engagement rotational speed, an intervention in the ignition is carried out such that the rotational speed increases. If the rotational speed exceeds an upper engagement rotational speed, an intervention in the ignition is again carried out such that the rotational speed decreases. The upper engagement rotational speed and/or the lower engagement rotational speed is/are changed with an increasing number of consecutive working cycles.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 6, 2020
    Inventors: Clemens Klatt, Johannes Lang, Michael Unterkircher, Ulf Bannick
  • Patent number: 10240568
    Abstract: A manually actuated feed pump is provided with a primer bulb to be manually actuated by an operator. The primer bulb has a pump chamber. A travel-controlled valve connects the pump chamber to a fuel line. The travel-controlled valve has a valve member that is moved by an actuation travel of the primer bulb into an open position that opens the travel-controlled valve. A first spring is operatively connected to the valve member and to the primer bulb. The primer bulb acts through the first spring on the valve member.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 26, 2019
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Michael Dietenberger, Ulf Bannick, Isgard Sabelberg, Tobias Deigendesch
  • Publication number: 20170167458
    Abstract: A manually actuated feed pump is provided with a primer bulb to be manually actuated by an operator. The primer bulb has a pump chamber. A travel-controlled valve connects the pump chamber to a fuel line. The travel-controlled valve has a valve member that is moved by an actuation travel of the primer bulb into an open position that opens the travel-controlled valve. A first spring is operatively connected to the valve member and to the primer bulb. The primer bulb acts through the first spring on the valve member.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 15, 2017
    Inventors: Michael Dietenberger, Ulf Bannick, Isgard Sabelberg, Tobias Deigendesch