Patents by Inventor Frederick M. Bergthold, Jr.

Frederick M. Bergthold, 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).

  • Laser beam duct pressure controller system
    Patent number: 4538635
    Abstract: A laser beam duct pressure controller system for maintaining a spatially uniform pressure in a flowing gas volume which is subjected to temporal pressure variations. This desired result is accomplished, with cooperating structural components (and gases therein) which eliminate the axial flow of a conditioning gas within the laser beam duct, by matching the time rate of change of the pressure of the flowing conditioning gas to the time rate of change of the pressure in the cavity of an operably associated laser beam turret.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: September 3, 1985
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Arnold J. Laderman, Frederick M. Bergthold, Jr.