Patents by Inventor Fritz Riffel

Fritz Riffel 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).

  • Apparatus for analyzing free-flowing material
    Patent number: 4024393
    Abstract: An apparatus for analyzing flowable material in intermittent sequence comprises a hollow dosing sphere having a predetermined inner volume for forming samples of constant volume of the material introduced thereinto; a hollow radiation sphere connected to the outlet of the hollow dosing sphere; a radiation source supported within and centrally with respect to the hollow radiation sphere for a homogeneous activation of the sample introduced thereinto from the hollow dosing sphere; a hollow measuring sphere connected to the outlet of the hollow radiation sphere; and a detector arranged in the hollow measuring sphere for sensing the activity of the irradiated sample introduced thereinto from the hollow radiation sphere.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: May 17, 1977
    Assignee: Gesellschaft fur Kernforschung m.b.H.
    Inventors: Hartmut Braun, Fritz Riffel, Walter Hartung