Patents by Inventor Klaus J. Siemsen

Klaus J. Siemsen 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 systems
    Patent number: 4242645
    Abstract: A gas laser system which provides sequence lines of emission in addition to the regular lines. The system includes a discharge cavity having a discharge tube and a hot gas absorber cell. The lasing gas and the gas in absorber are identical and may be either CO.sub.2, N.sub.2 O or isotopes of this gas. The absorber cell is approximately 1/5 to 1/3 the length of the discharge cavity with the interior temperature of the absorber cell being greater than 200.degree. C. and the pressure within the cell being in the order of 20 torr.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: December 30, 1980
    Assignee: Canadian Patents and Development Limited
    Inventors: Klaus J. Siemsen, John Reid