Patents by Inventor Benjamin Sarka

Benjamin Sarka 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 cycle annular-return gas flow electrical discharge laser
    Patent number: 4274065
    Abstract: A closed cycle, high repetition pulsed laser having a laser flow channel with an annular flow return surrounding the laser flow channel. Ultra high vacuum components and low out-gassing materials are used in the device. An externally driven axial flow fan is used for gas recirculation. A thyratron-switched low-inductance energy storage capacitor is used to provide a transverse discharge between profiled electrodes in the laser cavity.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: June 16, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Alan Garscadden, Peter Bletzinger, Siegfried H. Hasinger, Robert A. Olson, Benjamin Sarka