Patents by Inventor Hans-Dirk Loewe

Hans-Dirk Loewe 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 sensor arrangement and measuring method for improving long-term stability
    Patent number: 7244940
    Abstract: A gas sensor arrangement comprises a gas measuring chamber containing a gaseous analyte. First and second radiation sources emit radiation. The first radiation source operates as a measuring radiation source and the second radiation source operates as a reference radiation source. The radiation is directed through the gas measuring chamber and into a detector that generates an output signal depending on the presence of the gaseous analyte. A control device evaluates the output signal from the detector. The control device interchanges the operation of the first and second radiation sources after a predetermined service life.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: July 17, 2007
    Assignee: Tyco Electronics Raychem GmbH
    Inventors: Robert Frodl, Hans-Dirk Loewe
  • Gas Sensor Arrangement and Measuring Method for Improving Long-Term Stability
    Publication number: 20060255278
    Abstract: A gas sensor arrangement comprises a gas measuring chamber containing a gaseous analyte. First and second radiation sources emit radiation. The first radiation source operates as a measuring radiation source and the second radiation source operates as a reference radiation source. The radiation is directed through the gas measuring chamber and into a detector that generates an output signal depending on the presence of the gaseous analyte. A control device evaluates the output signal from the detector. The control device interchanges the operation of the first and second radiation sources after a predetermined service life.
    Type: Application
    Filed: April 26, 2006
    Publication date: November 16, 2006
    Inventors: Robert Frodl, Hans-Dirk Loewe