Patents by Inventor Robert G. Calderwood

Robert G. Calderwood 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).

  • Publication number: 20080121753
    Abstract: An air vehicle includes a body having a top and a bottom and a support platform for carrying cargo such a people or equipment. An impeller mounted on the body is powered, such as by a motor, for rotating so as to create low pressure on the top of the body relative to the pressure on the bottom of the body so as to create lift. The body may contain buoyant gas sufficient to aid in lift. Air from the impeller may be directed to directionally control the vehicle. A plurality of impellers may be used.
    Type: Application
    Filed: June 13, 2007
    Publication date: May 29, 2008
    Inventors: Jose E. Vazquez, Robert G. Calderwood