Patents by Inventor Gary L. Dukes

Gary L. Dukes 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).

  • Production of negative ions of hydrogen
    Patent number: 4407705
    Abstract: A process for generating negative ions of hydrogen isotopes is described which comprises cooling the hydrogen gas below 300.degree. K., and preferably to about 200.degree. K., vibrationally exciting the molecules of the gas, and the dissociating the molecules by electron impact into neutral hydrogen atoms and negative hydrogen ions. Alternatively, the gas may first be vibrationally excited by heating or the like, and then cooled translationally, for example, by rapid expansion prior to dissociation by electron impact. The processes of this invention are characterized by control of non-equilibrium conditions to obtain large increases in dissociative attachment rates by increasing the population of hydrogen gas molecules having a higher vibrational energy state.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: October 4, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Alan Garscadden, William F. Bailey, Gary L. Duke
  • Retractable round card table top
    Patent number: D393969
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: May 5, 1998
    Inventors: Larry G. Jenkins, Gary L. Dukes
  • Retractable hexagonal game table top
    Patent number: D400743
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: November 10, 1998
    Assignee: Whitaker Furniture Co. Inc.
    Inventors: Larry G. Jenkins, Gary L. Dukes