Patents by Inventor Stephen Greenston

Stephen Greenston 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).

  • Prop wash deflector
    Patent number: 6766980
    Abstract: A structure for increasing the cargo carrying capacity of a helicopter when the cargo is suspended below the helicopter chassis is described. The structure includes a depending skirt surrounding the helicopter wheels or struts and extending outwardly over the suspended cargo. The skirt is substantially frustro-conical in shape and provides a peripheral lip extending substantially horizontally for deflecting prop down wash from the helicopter rotor away from the suspended cargo.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: July 27, 2004
    Inventor: Stephen Greenston