Patents by Inventor Volker Knapp

Volker Knapp 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).

  • Process for the preparation of anhydrous sodium sulfide
    Patent number: 6503474
    Abstract: A process is disclosed for the preparation of anhydrous sodium sulfide by heating sodium sulfide having a water content of from 38 to 40% in a contact drier in vacuo, the temperature of the solid to be dried being increased from approximately 20° C. at the solid inlet to ≧180° C. at the solid outlet.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 7, 2003
    Assignee: Degussa AG
    Inventors: Robert Magiera, Hans Christian Alt, Gerhard Rasig, Jörg Münzenberg, Christoph Batz-Sohn, Ralf Goedecke, Ulrich Deschler, Volker Knapp, Karl-Heinz Rützel
  • Ultrasound generator and emitter
    Patent number: 4957100
    Abstract: An ultrasound generator and emitter suitable for use in ultrasound therapy has an electrical signal generator for charging an ultrasound resonator in an ultrasound head with electrical signals, which are converted into ultrasound energy to be emitted. The ultrasound head also includes an adapter element which electrically matches the particular ultrasound head being used to the electrical signal generator. The adapter is in the form of a removable adapter element which is electrically matched to the ultrasound resonator. The adapter element can be easily plugged into and removed from a circuit board in the ultrasound head. When the ultrasound resonator is replaced, the adapter element can be easily interchanged with an adapter element for matching the new ultrasound resonator to the signal generator.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: September 18, 1990
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ludwig Herzog, Volker Knapp