Patents by Inventor Petrus Staphanus van Zyl

Petrus Staphanus van Zyl 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).

  • MEASURING GAS SAMPLE HOLDER FOR MEASURING THE CONCENTRATIONS OF GAS COMPONENTS AND PROCESS FOR MANUFACTURING A MEASURING GAS SAMPLE HOLDER
    Publication number: 20090320846
    Abstract: A measurement gas vessel (3) for the measurement of the concentration of gas components of a stream of breath from a patient has a thin-walled inner part (11) which has two opposite facing walls limiting the breath stream. The walls are transparent to infrared light. An outer part (10) which in the central region (7) has two recesses on opposite sides which, with the walls (16) of the inner part (11), each form a window (9). A region of the inner part (11) outside the windows (9) is thermally connected to the outer part (10), and the outer part (10) surrounds the inner part (11).
    Type: Application
    Filed: November 2, 2007
    Publication date: December 31, 2009
    Applicant: DRAGER MEDICAL AG & CO. KG
    Inventors: Ludger Tappehorn, Petrus Staphanus van Zyl, Chritiane Göbel, Jennifer Lünse, Horst-Dieter Hattendorff