Patents by Inventor Raymond J. Drago

Raymond J. Drago 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).

  • High ratio, reduced size epicyclic gear transmission for rotary wing aircraft with improved safety and noise reduction
    Patent number: 6966865
    Abstract: A high ratio, double helical epicyclic gear transmission that is primarily intended for use in rotary wing aircraft employs double helical planet gears to obtain a reduction in size of the transmission, to improve the safety of the transmission, and to reduce the noise created by operation of the transmission.
    Type: Grant
    Filed: November 10, 2003
    Date of Patent: November 22, 2005
    Assignee: The Boeing Company
    Inventors: Raymond J. Drago, Joseph W. Lenski Jr., Mark J. Robuck