Patents by Inventor Klaus-Herbert Schetter

Klaus-Herbert Schetter 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).

  • Metal vapor laser tube
    Patent number: 4694463
    Abstract: According to the invention, the metal vapor laser tube comprises a cylindrical plasma tube (1), which is located inside a leak-proof container (2) and which is surrounded by a thermal insulating material, an electrode (6) at each end of the plasma tube, and a cylindrical return conductor (9) coaxial to the plasma tube (1) which is connected with one of the electrodes, and characterized in that the return conductor (9) has a radius R of about: ##EQU1## where: e=exponential function,r=radius of the plasma tube, expressed in centimeters,dE/dV=energy density of the plasma, expressed in millijoules per cubic centimeter,ro=specific resistance of the plasma, expressed in Ohms.times.centimeter,U=electrical field, expressed in volts per centimeter.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: September 15, 1987
    Assignee: Institut Franco-Allemand de Recherches de Saint-Louis
    Inventors: Antoine Hirth, Klaus-Herbert Schetter