Patents by Inventor Fred T. Rogers

Fred T. Rogers 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).

  • Gas laser starting
    Patent number: 4068192
    Abstract: A starting device for a sealed, cross-flow gas laser for operating at least wo electric discharges simultaneously in a single laser cavity using primary fins between the cathodes and anodes of the cavity as intermediate electrodes. A series of high voltage relays and resistors are placed in parallel with the discharge path between adjacent fin electrodes and by switching out pairs of relays current is coupled to the discharge path, one fin at a time.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: January 10, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert T. Hintz, Fred T. Rogers
  • Segmented flow laser cavity
    Patent number: 3978430
    Abstract: A gas laser is constructed of discrete segments in such a manner that the s flowing through the active region of the laser is introduced from a plenum chamber from whence it flows annularly into the active region and travels through the region both to the left and right of the input until it reaches the first output region. From there the gas flows annularly out into a shaping region and thence into the output plenum.
    Type: Grant
    Filed: October 2, 1975
    Date of Patent: August 31, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Russell W. Pierce, Fred T. Rogers