Patents by Inventor Stephen Kohls

Stephen Kohls 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).

  • Aerodynamic device and method of use
    Patent number: 7726724
    Abstract: An aerodynamic device is disclosed for limiting aerodynamic drag on the rear surface of various types of trucks with trailers. The aerodynamic device includes a plurality of rigid members and a flexible sheet designed to create a pyramid-shaped projection pointing away from the rear surface of the trailer. The device members can be quickly disassembled and the flexible sheet collapses so that the aerodynamic device lies flat against the rear surface of the trailer. The aerodynamic device can be attached directly to doors on the rear surface of a trailer or to a mounting frame that may rotate around to the side of the trailer where a roll-up style door is present.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: June 1, 2010
    Inventor: Stephen Kohls
  • Aerodynamic Device And Method Of Use
    Publication number: 20090096250
    Abstract: An aerodynamic device is disclosed for limiting aerodynamic drag on the rear surface of various types of trucks with trailers. The aerodynamic device includes a plurality of rigid members and a flexible sheet designed to create a pyramid-shaped projection pointing away from the rear surface of the trailer. The device members can be quickly disassembled and the flexible sheet collapses so that the aerodynamic device lies flat against the rear surface of the trailer. The aerodynamic device can be attached directly to doors on the rear surface of a trailer or to a mounting frame that may rotate around to the side of the trailer where a roll-up style door is present.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Inventor: Stephen Kohls