Patents by Inventor Gregory N. Stein

Gregory N. Stein 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).

  • Built-in attachment device using selective laser sintering
    Patent number: 7514649
    Abstract: A method of assembling a first part and a second part. The method includes the step of integrally forming an attachment device and a first part. For example, the attachment device may be a nut plate operative to retain a nut therein, and the first part may be an air duct. The nut plate and the air duct may be integrally formed via selective laser sintering or stereo lithography such that the nut plate is an integral feature of the air duct. A nut may be retained in the nut plate, and a mating bolt may engage the nut to attach the air duct (i.e., the first part) to the second part.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: April 7, 2009
    Assignee: Northrop Grumman Corporation
    Inventors: Christopher H. Husmann, Gregory N. Stein
  • 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