Patents by Inventor Rolf Rudolph

Rolf Rudolph 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).

  • Ion mobility spectrometer with GC column and internal controlled gas circulation
    Patent number: 6803567
    Abstract: An ion mobility spectrometer with a GC column and an internal circulation system is provided which can be used in trace gas analysis. Due to the special design of the gas circulation, the parameters: carrier gas velocity in the GC column, the flow rate of the gas to be analyzed and the flow rate of the drift gas can be varied extensively independently and without reaction. Additional pumps and gas splitters are arranged in the circulation system for this purpose.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: October 12, 2004
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Jürgen Leonhardt, Bensch Holger, Joachim Franke, Rolf Rudolph
  • Ion mobility spectrometer with GC column and internal controlled gas circulation
    Publication number: 20040031919
    Abstract: An ion mobility spectrometer with a GC column and an internal circulation system is provided which can be used in trace gas analysis. Due to the special design of the gas circulation, the parameters: carrier gas velocity in the GC column, the flow rate of the gas to be analyzed and the flow rate of the drift gas can be varied extensively independently and without reaction. Additional pumps and gas splitters are arranged in the circulation system for this purpose.
    Type: Application
    Filed: June 24, 2003
    Publication date: February 19, 2004
    Inventors: Jurgen Leonhardt, Holger Bensch, Joachim Franke, Rolf Rudolph