Patents by Inventor Helmut Swistun

Helmut Swistun 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: 7621019
    Abstract: A blower apparatus has a blower housing having a blower intake. A motor-driven blower is arranged in the blower housing and takes in air in a flow direction through the blower intake into the blower housing. A device for mechanical clearing of the blower intake is arranged at the blower intake. The mechanical clearing device is driven in rotation during operation of the blower apparatus.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: November 24, 2009
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Dieter Kremsler, Michael Hocquel, Klaus Langhans, Helmut Swistun, Uwe Gaese
  • Publication number: 20060059654
    Abstract: A blower apparatus has a blower housing having a blower intake. A motor-driven blower is arranged in the blower housing and takes in air in a flow direction through the blower intake into the blower housing. A device for mechanical clearing of the blower intake is arranged at the blower intake. The mechanical clearing device is driven in rotation during operation of the blower apparatus.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 23, 2006
    Applicant: ANDREAS STIHL AG & CO. KG
    Inventors: Dieter Kremsler, Michael Hocquel, Klaus Langhans, Helmut Swistun, Uwe Gaese
  • Patent number: 5740613
    Abstract: A trimmer has a drive motor, a cutting tool, and a drive shaft connecting the drive motor and the cutting tool. A protective tube encloses the drive shaft. A connector is provided for connecting a handle bar, having a first and a second section, to the protective tube. The first and second sections are parallel to one another, and the first section is connected to the protective tube. The first section has a free end with a first handle and the second section has a free end with a second handle. The handle bar is positioned asymmetrically relative to the longitudinal axis of the protective tube. The handle bar has a bent portion, with a first and a second bend, connecting the first and second sections. The bent portion is positioned adjacent to the connector. In the operating position of the trimmer, the longitudinal axis of the second section is displaced relative to the longitudinal axis of the first section along the longitudinal axis of the protective tube.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: April 21, 1998
    Assignee: Andreas Stihl
    Inventors: Helmut Swistun, Gerhard Stoll, Martin Lambe