Patents by Inventor David J. Benard

David J. Benard 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).

  • Patent number: 4434492
    Abstract: Iodine vapor is supplied to an oxygen iodine laser by an improved iodine vaporizer. The vaporizer has a radiation transparent window and iodine crystals are contained in the vaporizer. Broad beam radiation from a variable intensity source is directed through the window into the vaporizer where it is absorbed by the iodine crystals, causing the iodine crystals to sublime. The iodine vapor is transported to the laser by a carrier gas flowed through the vaporizer. Coarse control of the iodine flow is achieved by controlling the carrier gas flow. Control of the amount of iodine vapor introduced into the carrier gas flow is achieved by varying the amount of radiation directed into the vaporizer.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: February 28, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: David J. Benard, Nicholas R. Pchelkin, William E. McDermott, David E. Ellis, George W. Miller
  • Patent number: 4267526
    Abstract: CW laser action achieved on the .sup.2P 178-.sup.2P 3/2 transition of the iodine atom by energy transfer from the .sup.1 .DELTA. metastable state of O.sub.2. The effluent from a conventional oxygen generator was mixed with molecular iodine at the entrance of a longitudinal flow laser cavity where the I.sub.2 was dissociated by a small amount of O.sub.2 (.sup.1 .SIGMA.) that was present in the flow due to energy pooling processes. The measured output power was greater than 4mW.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: May 12, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William E. McDermott, David J. Benard, Nicholas R. Pchelkin, Ronald R. Bousek
  • Patent number: 4246252
    Abstract: A method for generating electronically excited oxygen by efFecting a chemical reaction between chlorine and basic hydrogen peroxide.
    Type: Grant
    Filed: April 13, 1979
    Date of Patent: January 20, 1981
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William E. McDermott, David J. Benard, Nicholas R. Pchelkin, Ronald R. Bousek