Patents by Inventor Stephen W. Mak

Stephen W. Mak 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).

  • Titanium MMC fanshaft with superalloy end attachment
    Patent number: 5277661
    Abstract: A first hollow titanium MMC driveshaft portion is diffusion bonded to a third portion which in turn is fastened to a second superalloy portion via circumferentially positioned pins which are tightly fitted within aligned holed formed in the second and third driveshaft portions. The first, second and third portions are concentric with respect to the driveshaft centerline, and the pins are retained by means of a concentric retaining cylinder.
    Type: Grant
    Filed: February 27, 1992
    Date of Patent: January 11, 1994
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Stephen W. Mak, Heidi J. Stegemiller