Patents by Inventor Wolfgang Riede

Wolfgang Riede 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).

  • Propulsion device and method of generating shock waves
    Patent number: 6459205
    Abstract: For providing a propulsion device particularly for a spacecraft, comprising a plasma chamber in which a plasma can be produced in a propellant, and a focussing arrangement for focussing an electromagnetic radiation field into a focussing region in the plasma chamber in order to produce the plasma, the propulsion device being highly efficient and controllable, it is proposed to arrange in the plasma chamber a plasma ignition arrangement whereby a material which lowers the plasma breakdown threshold in the propellant can be brought into the focussing region.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: October 1, 2002
    Assignee: Deutsches Zentrum fuer Luft-und Raumfahrt e.V.
    Inventors: Wolfgang Schall, Eberhard Zeyfang, Wolfgang Riede, Wilhelm Mayerhofer
  • Propulsion device and method of generating shock waves
    Publication number: 20020047673
    Abstract: For providing a propulsion device particularly for a spacecraft, comprising a plasma chamber in which a plasma can be produced in a propellant, and a focussing arrangement for focussing an electromagnetic radiation field into a focussing region in the plasma chamber in order to produce the plasma, the propulsion device being highly efficient and controllable, it is proposed to arrange in the plasma chamber a plasma ignition arrangement whereby a material which lowers the plasma breakdown threshold in the propellant can be brought into the focussing region.
    Type: Application
    Filed: April 6, 2001
    Publication date: April 25, 2002
    Applicant: Deutsches Zentrum fur Luft-und Raumfahrt e.V.
    Inventors: Wolfgang Schall, Eberhard Zeyfang, Wolfgang Riede, Wilhelm Mayerhofer
  • Laser with variable pulse length
    Patent number: 5648976
    Abstract: A device for generating short laser pulses comprises a laser oscillator for generating a first laser pulse, a pulse compression element which retroreflects the first laser pulse by stimulated Brillouin scattering (SBS) as a temporally shortened pulse, a reflection element into which the temporally shortened laser pulse is retroreflected for further temporal shortening of the pulse, and an outcoupling element disposed between the pulse compression element and the reflection element for outcoupling the so shortened laser pulse.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: July 15, 1997
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Jerome Franck, Wolfgang Riede