Patents by Inventor David B. Tracy

David B. Tracy 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).

  • Closed circuit media capture and recovery head for the portable wheat starch media blast system
    Patent number: 5957761
    Abstract: A blast head for abrasive blasting has a nozzle for directing a blast media at a surface being treated and a housing for containing the blast media after it passes through the nozzle and for facilitating recirculation of the blast media. An adjustment mechanism facilitates varying of the orientation of the nozzle with respect to the surface being treated, so as to facilitate enhanced blasting thereof.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: September 28, 1999
    Assignee: Northrop Grumman Corporation
    Inventors: Raymond E. Miller, James J. Allard, David B. Tracy, David J. Hancock, Brent R. Meredith, Gregory N. Stein