Patents by Inventor Thorsten Schäffer

Thorsten Schäffer 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).

  • Power tool
    Patent number: 10329994
    Abstract: A power tool has an internal combustion engine with an injection valve through which fuel is supplied to the internal combustion engine; a crankcase; and a crankshaft arranged in the crankcase so as to be rotatable about an axis of rotation. A fan wheel housing is provided and a fan wheel is arranged in the fan wheel housing and conveys cooling air to the internal combustion engine. In the fan wheel housing a connecting opening is formed. The injection valve is arranged in a cooling area, wherein cooling air is supplied by the fan wheel through the connecting opening to the cooling area.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 25, 2019
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Martin Rieber, Thorsten Schäffer, Jens Riehmann, Arno Kinnen, Volker Donner
  • Power tool
    Patent number: 9175594
    Abstract: A power tool has an internal combustion engine with a cylinder. An injection valve supplies fuel to the internal combustion engine. A fuel pump conveys fuel from a fuel tank to the injection valve. A fan wheel is provided that is driven by the internal combustion engine. The cylinder is arranged in a first cooling zone of the power tool and the fan wheel conveys cooling air through the first cooling zone. The fuel pump is arranged in a second cooling zone of the power tool. Between the first cooling zone and the second cooling zone a buffer zone is arranged. The buffer zone is separated by at least one first partition from the first cooling zone and by at least one second petition from the second cooling zone.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: November 3, 2015
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Thorsten Schäffer, Wolfgang Layher, Christopher Tost, Arno Kinnen, Igor Klaric
  • Power Tool
    Publication number: 20130340693
    Abstract: A power tool has an internal combustion engine with a cylinder. An injection valve supplies fuel to the internal combustion engine. A fuel pump conveys fuel from a fuel tank to the injection valve. A fan wheel is provided that is driven by the internal combustion engine. The cylinder is arranged in a first cooling zone of the power tool and the fan wheel conveys cooling air through the first cooling zone. The fuel pump is arranged in a second cooling zone of the power tool. Between the first cooling zone and the second cooling zone a buffer zone is arranged. The buffer zone is separated by at least one first partition from the first cooling zone and by at least one second petition from the second cooling zone.
    Type: Application
    Filed: December 7, 2012
    Publication date: December 26, 2013
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Thorsten Schäffer, Wolfgang Layher, Christopher Tost, Arno Kinnen, Igor Klaric