Patents by Inventor Nicholas Francis Martin, Jr.

Nicholas Francis Martin, Jr. 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).

  • Compressor blade platform extension and methods of retrofitting blades of different blade angles
    Patent number: 7104759
    Abstract: Blades of increased blade angle may be retrofitted onto existing compressor rotor wheels as replacement blades whereby higher performance and efficiency without replacing the rotor wheel may be achieved. The base attachments of replacement blades are provided with lateral extensions or flanges and the rim of the compressor wheel is provided with recesses straddling the grooves to accommodate the flanges. The leading edge of the replacement blade is positioned circumferentially for support only by the platform extension thereby limiting the mean and vibratory stresses in the leading edge of the airfoil and maximizing damage tolerance.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: September 12, 2006
    Assignee: General Electric Company
    Inventors: Thomas Robbins Tipton, Nicholas Francis Martin, Jr.